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@@ -0,0 +1,37 b'' | |||
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1 | # encoding: utf-8 | |
|
2 | """ | |
|
3 | Test the LineFrontEnd | |
|
4 | """ | |
|
5 | ||
|
6 | __docformat__ = "restructuredtext en" | |
|
7 | ||
|
8 | #------------------------------------------------------------------------------- | |
|
9 | # Copyright (C) 2008 The IPython Development Team | |
|
10 | # | |
|
11 | # Distributed under the terms of the BSD License. The full license is | |
|
12 | # in the file COPYING, distributed as part of this software. | |
|
13 | #------------------------------------------------------------------------------- | |
|
14 | ||
|
15 | from IPython.frontend.linefrontendbase import LineFrontEndBase | |
|
16 | from copy import deepcopy | |
|
17 | import nose.tools as nt | |
|
18 | ||
|
19 | class ConcreteLineFrontEnd(LineFrontEndBase): | |
|
20 | """ A concrete class to test the LineFrontEndBase. | |
|
21 | """ | |
|
22 | def capture_output(self): | |
|
23 | pass | |
|
24 | ||
|
25 | def release_output(self): | |
|
26 | pass | |
|
27 | ||
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28 | ||
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29 | def test_is_complete(): | |
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30 | """ Tests line completion heuristic. | |
|
31 | """ | |
|
32 | frontend = ConcreteLineFrontEnd() | |
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33 | yield nt.assert_true, not frontend.is_complete('for x in \\') | |
|
34 | yield nt.assert_true, not frontend.is_complete('for x in (1, ):') | |
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35 | yield nt.assert_true, frontend.is_complete('for x in (1, ):\n pass') | |
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36 | ||
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37 |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
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1 | NO CONTENT: new file 100644 | |
The requested commit or file is too big and content was truncated. Show full diff |
@@ -1,75 +1,75 b'' | |||
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1 | 1 | """ Greedy completer extension for IPython |
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2 | 2 | |
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3 | 3 | Normal tab completer refuses to evaluate nonsafe stuff. This will evaluate |
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4 | 4 | everything, so you need to consider the consequences of pressing tab |
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5 | 5 | yourself! |
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6 | 6 | |
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7 | 7 | Note that this extension simplifies readline interaction by setting |
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8 | 8 | only whitespace as completer delimiter. If this works well, we will |
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9 | 9 | do the same in default completer. |
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10 | 10 | |
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11 | 11 | """ |
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12 | 12 | from IPython import generics,ipapi |
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13 | 13 | from IPython.genutils import dir2 |
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14 | 14 | |
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15 | 15 | def attr_matches(self, text): |
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16 | 16 | """Compute matches when text contains a dot. |
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17 | 17 | |
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18 | 18 | MONKEYPATCHED VERSION (ipy_greedycompleter.py) |
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19 | 19 | |
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20 | 20 | Assuming the text is of the form NAME.NAME....[NAME], and is |
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21 | 21 | evaluatable in self.namespace or self.global_namespace, it will be |
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22 | 22 | evaluated and its attributes (as revealed by dir()) are used as |
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23 | 23 | possible completions. (For class instances, class members are are |
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24 | 24 | also considered.) |
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25 | 25 | |
|
26 | 26 | WARNING: this can still invoke arbitrary C code, if an object |
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27 | 27 | with a __getattr__ hook is evaluated. |
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28 | 28 | |
|
29 | 29 | """ |
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30 | 30 | import re |
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31 | 31 | |
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32 | 32 | force_complete = 1 |
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33 | 33 | # Another option, seems to work great. Catches things like ''.<tab> |
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34 | 34 | m = re.match(r"(\S+(\.\w+)*)\.(\w*)$", text) |
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35 | 35 | |
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36 | 36 | if m: |
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37 | 37 | expr, attr = m.group(1, 3) |
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38 | 38 | else: |
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39 | 39 | # force match - eval anything that ends with colon |
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40 | 40 | if not force_complete: |
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41 | 41 | return [] |
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42 | 42 | |
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43 | 43 | m2 = re.match(r"(.+)\.(\w*)$", self.lbuf) |
|
44 | 44 | if not m2: |
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45 | 45 | return [] |
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46 | 46 | expr, attr = m2.group(1,2) |
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47 | 47 | |
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48 | 48 | |
|
49 | 49 | try: |
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50 | 50 | obj = eval(expr, self.namespace) |
|
51 | 51 | except: |
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52 | 52 | try: |
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53 | 53 | obj = eval(expr, self.global_namespace) |
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54 | 54 | except: |
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55 | 55 | return [] |
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56 | 56 | |
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57 | 57 | words = dir2(obj) |
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58 | 58 | |
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59 | 59 | try: |
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60 | 60 | words = generics.complete_object(obj, words) |
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61 | 61 | except ipapi.TryNext: |
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62 | 62 | pass |
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63 | 63 | # Build match list to return |
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64 | 64 | n = len(attr) |
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65 | 65 | res = ["%s.%s" % (expr, w) for w in words if w[:n] == attr ] |
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66 | 66 | return res |
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67 | 67 | |
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68 | 68 | def main(): |
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69 | import readline | |
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69 | import IPython.rlineimpl as readline | |
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70 | 70 | readline.set_completer_delims(" \n\t") |
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71 | 71 | # monkeypatch - the code will be folded to normal completer later on |
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72 | 72 | import IPython.completer |
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73 | 73 | IPython.completer.Completer.attr_matches = attr_matches |
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74 | 74 | |
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75 | 75 | main() No newline at end of file |
@@ -1,116 +1,114 b'' | |||
|
1 | 1 | """ User configuration file for IPython |
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2 | 2 | |
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3 | 3 | This is a more flexible and safe way to configure ipython than *rc files |
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4 | 4 | (ipythonrc, ipythonrc-pysh etc.) |
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5 | 5 | |
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6 | 6 | This file is always imported on ipython startup. You can import the |
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7 | 7 | ipython extensions you need here (see IPython/Extensions directory). |
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8 | 8 | |
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9 | 9 | Feel free to edit this file to customize your ipython experience. |
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10 | 10 | |
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11 | 11 | Note that as such this file does nothing, for backwards compatibility. |
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12 | 12 | Consult e.g. file 'ipy_profile_sh.py' for an example of the things |
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13 | 13 | you can do here. |
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14 | 14 | |
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15 | 15 | See http://ipython.scipy.org/moin/IpythonExtensionApi for detailed |
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16 | 16 | description on what you could do here. |
|
17 | 17 | """ |
|
18 | 18 | |
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19 | 19 | # Most of your config files and extensions will probably start with this import |
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20 | 20 | |
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21 | 21 | import IPython.ipapi |
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22 | 22 | ip = IPython.ipapi.get() |
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23 | 23 | |
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24 | 24 | # You probably want to uncomment this if you did %upgrade -nolegacy |
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25 | 25 | # import ipy_defaults |
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26 | 26 | |
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27 | 27 | import os |
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28 | 28 | |
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29 | 29 | def main(): |
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30 | 30 | |
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31 | 31 | # uncomment if you want to get ipython -p sh behaviour |
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32 | 32 | # without having to use command line switches |
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33 | 33 | # import ipy_profile_sh |
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34 | 34 | |
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35 | 35 | # Configure your favourite editor? |
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36 | 36 | # Good idea e.g. for %edit os.path.isfile |
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37 | 37 | |
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38 | 38 | #import ipy_editors |
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39 | 39 | |
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40 | 40 | # Choose one of these: |
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41 | 41 | |
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42 | 42 | #ipy_editors.scite() |
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43 | 43 | #ipy_editors.scite('c:/opt/scite/scite.exe') |
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44 | 44 | #ipy_editors.komodo() |
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45 | 45 | #ipy_editors.idle() |
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46 | 46 | # ... or many others, try 'ipy_editors??' after import to see them |
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47 | 47 | |
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48 | 48 | # Or roll your own: |
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49 | 49 | #ipy_editors.install_editor("c:/opt/jed +$line $file") |
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50 | 50 | |
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51 | 51 | |
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52 | 52 | o = ip.options |
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53 | 53 | # An example on how to set options |
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54 | 54 | #o.autocall = 1 |
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55 | 55 | o.system_verbose = 0 |
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56 | 56 | |
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57 | 57 | #import_all("os sys") |
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58 | 58 | #execf('~/_ipython/ns.py') |
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59 | 59 | |
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60 | 60 | |
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61 | 61 | # -- prompt |
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62 | 62 | # A different, more compact set of prompts from the default ones, that |
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63 | 63 | # always show your current location in the filesystem: |
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64 | 64 | |
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65 | 65 | #o.prompt_in1 = r'\C_LightBlue[\C_LightCyan\Y2\C_LightBlue]\C_Normal\n\C_Green|\#>' |
|
66 | 66 | #o.prompt_in2 = r'.\D: ' |
|
67 | 67 | #o.prompt_out = r'[\#] ' |
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68 | 68 | |
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69 | 69 | # Try one of these color settings if you can't read the text easily |
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70 | 70 | # autoexec is a list of IPython commands to execute on startup |
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71 | 71 | #o.autoexec.append('%colors LightBG') |
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72 | 72 | #o.autoexec.append('%colors NoColor') |
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73 | 73 | #o.autoexec.append('%colors Linux') |
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74 | 74 | |
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75 | 75 | # for sane integer division that converts to float (1/2 == 0.5) |
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76 | 76 | #o.autoexec.append('from __future__ import division') |
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77 | 77 | |
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78 | 78 | # For %tasks and %kill |
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79 | 79 | #import jobctrl |
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80 | 80 | |
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81 | 81 | # For autoreloading of modules (%autoreload, %aimport) |
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82 | 82 | #import ipy_autoreload |
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83 | 83 | |
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84 | 84 | # For winpdb support (%wdb) |
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85 | 85 | #import ipy_winpdb |
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86 | 86 | |
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87 | 87 | # For bzr completer, requires bzrlib (the python installation of bzr) |
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88 | 88 | #ip.load('ipy_bzr') |
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89 | 89 | |
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90 | 90 | # Tab completer that is not quite so picky (i.e. |
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91 | 91 | # "foo".<TAB> and str(2).<TAB> will work). Complete |
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92 | 92 | # at your own risk! |
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93 | 93 | #import ipy_greedycompleter |
|
94 | 94 | |
|
95 | 95 | # If you are on Linux, you may be annoyed by |
|
96 | 96 | # "Display all N possibilities? (y or n)" on tab completion, |
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97 | 97 | # as well as the paging through "more". Uncomment the following |
|
98 | 98 | # lines to disable that behaviour |
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99 | 99 | #import readline |
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100 | 100 | #readline.parse_and_bind('set completion-query-items 1000') |
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101 | 101 | #readline.parse_and_bind('set page-completions no') |
|
102 | ||
|
103 | ||
|
104 | ||
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105 | ||
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102 | ||
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103 | ||
|
106 | 104 | # some config helper functions you can use |
|
107 | 105 | def import_all(modules): |
|
108 | 106 | """ Usage: import_all("os sys") """ |
|
109 | 107 | for m in modules.split(): |
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110 | 108 | ip.ex("from %s import *" % m) |
|
111 | ||
|
109 | ||
|
112 | 110 | def execf(fname): |
|
113 | 111 | """ Execute a file in user namespace """ |
|
114 | 112 | ip.ex('execfile("%s")' % os.path.expanduser(fname)) |
|
115 | 113 | |
|
116 | 114 | main() |
@@ -1,76 +1,77 b'' | |||
|
1 | 1 | """ |
|
2 | 2 | Base front end class for all async frontends. |
|
3 | 3 | """ |
|
4 | 4 | __docformat__ = "restructuredtext en" |
|
5 | 5 | |
|
6 | 6 | #------------------------------------------------------------------------------- |
|
7 | 7 | # Copyright (C) 2008 The IPython Development Team |
|
8 | 8 | # |
|
9 | 9 | # Distributed under the terms of the BSD License. The full license is in |
|
10 | 10 | # the file COPYING, distributed as part of this software. |
|
11 | 11 | #------------------------------------------------------------------------------- |
|
12 | 12 | |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #------------------------------------------------------------------------------- |
|
17 | from IPython.external import guid | |
|
18 | 17 | |
|
18 | from IPython.external import guid | |
|
19 | 19 | |
|
20 | 20 | from zope.interface import Interface, Attribute, implements, classProvides |
|
21 | 21 | from twisted.python.failure import Failure |
|
22 |
from IPython.frontend.frontendbase import |
|
|
22 | from IPython.frontend.frontendbase import ( | |
|
23 | FrontEndBase, IFrontEnd, IFrontEndFactory) | |
|
23 | 24 | from IPython.kernel.core.history import FrontEndHistory |
|
24 | 25 | from IPython.kernel.engineservice import IEngineCore |
|
25 | 26 | |
|
26 | 27 | |
|
27 | 28 | class AsyncFrontEndBase(FrontEndBase): |
|
28 | 29 | """ |
|
29 | 30 | Overrides FrontEndBase to wrap execute in a deferred result. |
|
30 | 31 | All callbacks are made as callbacks on the deferred result. |
|
31 | 32 | """ |
|
32 | 33 | |
|
33 | 34 | implements(IFrontEnd) |
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34 | 35 | classProvides(IFrontEndFactory) |
|
35 | 36 | |
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36 | 37 | def __init__(self, engine=None, history=None): |
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37 | 38 | assert(engine==None or IEngineCore.providedBy(engine)) |
|
38 | 39 | self.engine = IEngineCore(engine) |
|
39 | 40 | if history is None: |
|
40 | 41 | self.history = FrontEndHistory(input_cache=['']) |
|
41 | 42 | else: |
|
42 | 43 | self.history = history |
|
43 | 44 | |
|
44 | 45 | |
|
45 | 46 | def execute(self, block, blockID=None): |
|
46 | 47 | """Execute the block and return the deferred result. |
|
47 | 48 | |
|
48 | 49 | Parameters: |
|
49 | 50 | block : {str, AST} |
|
50 | 51 | blockID : any |
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51 | 52 | Caller may provide an ID to identify this block. |
|
52 | 53 | result['blockID'] := blockID |
|
53 | 54 | |
|
54 | 55 | Result: |
|
55 | 56 | Deferred result of self.interpreter.execute |
|
56 | 57 | """ |
|
57 | 58 | |
|
58 | 59 | if(not self.is_complete(block)): |
|
59 | 60 | return Failure(Exception("Block is not compilable")) |
|
60 | 61 | |
|
61 | 62 | if(blockID == None): |
|
62 | 63 | blockID = guid.generate() |
|
63 | 64 | |
|
64 | 65 | d = self.engine.execute(block) |
|
65 | 66 | d.addCallback(self._add_history, block=block) |
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66 | 67 | d.addCallbacks(self._add_block_id_for_result, |
|
67 | 68 | errback=self._add_block_id_for_failure, |
|
68 | 69 | callbackArgs=(blockID,), |
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69 | 70 | errbackArgs=(blockID,)) |
|
70 | 71 | d.addBoth(self.update_cell_prompt, blockID=blockID) |
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71 | 72 | d.addCallbacks(self.render_result, |
|
72 | 73 | errback=self.render_error) |
|
73 | 74 | |
|
74 | 75 | return d |
|
75 | 76 | |
|
76 | 77 |
@@ -1,94 +1,100 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """This file contains unittests for the |
|
3 | 3 | IPython.frontend.cocoa.cocoa_frontend module. |
|
4 | 4 | """ |
|
5 | 5 | __docformat__ = "restructuredtext en" |
|
6 | 6 | |
|
7 | 7 | #--------------------------------------------------------------------------- |
|
8 | 8 | # Copyright (C) 2005 The IPython Development Team |
|
9 | 9 | # |
|
10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | 11 | # the file COPYING, distributed as part of this software. |
|
12 | 12 | #--------------------------------------------------------------------------- |
|
13 | 13 | |
|
14 | 14 | #--------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #--------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | # Tell nose to skip this module | |
|
19 | __test__ = {} | |
|
20 | ||
|
21 | from twisted.trial import unittest | |
|
22 | from twisted.internet.defer import succeed | |
|
23 | ||
|
24 | from IPython.kernel.core.interpreter import Interpreter | |
|
25 | import IPython.kernel.engineservice as es | |
|
26 | ||
|
18 | 27 | try: |
|
19 | from IPython.kernel.core.interpreter import Interpreter | |
|
20 | import IPython.kernel.engineservice as es | |
|
21 | from IPython.testing.util import DeferredTestCase | |
|
22 | from twisted.internet.defer import succeed | |
|
23 | from IPython.frontend.cocoa.cocoa_frontend import IPythonCocoaController | |
|
28 | from IPython.frontend.cocoa.cocoa_frontend import IPythonCocoaController | |
|
24 | 29 | from Foundation import NSMakeRect |
|
25 |
from AppKit import NSTextView, NSScrollView |
|
|
30 | from AppKit import NSTextView, NSScrollView | |
|
26 | 31 | except ImportError: |
|
27 | import nose | |
|
28 | raise nose.SkipTest("This test requires zope.interface, Twisted, Foolscap and PyObjC") | |
|
32 | # This tells twisted.trial to skip this module if PyObjC is not found | |
|
33 | skip = True | |
|
29 | 34 | |
|
30 | class TestIPythonCocoaControler(DeferredTestCase): | |
|
35 | #--------------------------------------------------------------------------- | |
|
36 | # Tests | |
|
37 | #--------------------------------------------------------------------------- | |
|
38 | class TestIPythonCocoaControler(unittest.TestCase): | |
|
31 | 39 | """Tests for IPythonCocoaController""" |
|
32 | ||
|
40 | ||
|
33 | 41 | def setUp(self): |
|
34 | 42 | self.controller = IPythonCocoaController.alloc().init() |
|
35 | 43 | self.engine = es.EngineService() |
|
36 | 44 | self.engine.startService() |
|
37 | ||
|
45 | ||
|
38 | 46 | def tearDown(self): |
|
39 | 47 | self.controller = None |
|
40 | 48 | self.engine.stopService() |
|
41 | ||
|
49 | ||
|
42 | 50 | def testControllerExecutesCode(self): |
|
43 | 51 | code ="""5+5""" |
|
44 | 52 | expected = Interpreter().execute(code) |
|
45 | 53 | del expected['number'] |
|
46 | 54 | def removeNumberAndID(result): |
|
47 | 55 | del result['number'] |
|
48 | 56 | del result['id'] |
|
49 | 57 | return result |
|
50 | self.assertDeferredEquals( | |
|
51 |
|
|
|
52 | expected) | |
|
53 | ||
|
58 | d = self.controller.execute(code) | |
|
59 | d.addCallback(removeNumberAndID) | |
|
60 | d.addCallback(lambda r: self.assertEquals(r, expected)) | |
|
61 | ||
|
54 | 62 | def testControllerMirrorsUserNSWithValuesAsStrings(self): |
|
55 | 63 | code = """userns1=1;userns2=2""" |
|
56 | 64 | def testControllerUserNS(result): |
|
57 | 65 | self.assertEquals(self.controller.userNS['userns1'], 1) |
|
58 | 66 | self.assertEquals(self.controller.userNS['userns2'], 2) |
|
59 | ||
|
60 | 67 | self.controller.execute(code).addCallback(testControllerUserNS) |
|
61 | ||
|
62 | ||
|
68 | ||
|
63 | 69 | def testControllerInstantiatesIEngine(self): |
|
64 | 70 | self.assert_(es.IEngineBase.providedBy(self.controller.engine)) |
|
65 | ||
|
71 | ||
|
66 | 72 | def testControllerCompletesToken(self): |
|
67 | 73 | code = """longNameVariable=10""" |
|
68 | 74 | def testCompletes(result): |
|
69 | 75 | self.assert_("longNameVariable" in result) |
|
70 | ||
|
76 | ||
|
71 | 77 | def testCompleteToken(result): |
|
72 | 78 | self.controller.complete("longNa").addCallback(testCompletes) |
|
73 | ||
|
79 | ||
|
74 | 80 | self.controller.execute(code).addCallback(testCompletes) |
|
75 | ||
|
76 | ||
|
81 | ||
|
82 | ||
|
77 | 83 | def testCurrentIndent(self): |
|
78 | 84 | """test that current_indent_string returns current indent or None. |
|
79 | 85 | Uses _indent_for_block for direct unit testing. |
|
80 | 86 | """ |
|
81 | ||
|
87 | ||
|
82 | 88 | self.controller.tabUsesSpaces = True |
|
83 | 89 | self.assert_(self.controller._indent_for_block("""a=3""") == None) |
|
84 | 90 | self.assert_(self.controller._indent_for_block("") == None) |
|
85 | 91 | block = """def test():\n a=3""" |
|
86 | 92 | self.assert_(self.controller._indent_for_block(block) == \ |
|
87 | 93 | ' ' * self.controller.tabSpaces) |
|
88 | ||
|
94 | ||
|
89 | 95 | block = """if(True):\n%sif(False):\n%spass""" % \ |
|
90 | 96 | (' '*self.controller.tabSpaces, |
|
91 | 97 | 2*' '*self.controller.tabSpaces) |
|
92 | 98 | self.assert_(self.controller._indent_for_block(block) == \ |
|
93 | 99 | 2*(' '*self.controller.tabSpaces)) |
|
94 | ||
|
100 |
@@ -1,333 +1,372 b'' | |||
|
1 | 1 | """ |
|
2 | 2 | Base front end class for all line-oriented frontends, rather than |
|
3 | 3 | block-oriented. |
|
4 | 4 | |
|
5 | 5 | Currently this focuses on synchronous frontends. |
|
6 | 6 | """ |
|
7 | 7 | __docformat__ = "restructuredtext en" |
|
8 | 8 | |
|
9 | 9 | #------------------------------------------------------------------------------- |
|
10 | 10 | # Copyright (C) 2008 The IPython Development Team |
|
11 | 11 | # |
|
12 | 12 | # Distributed under the terms of the BSD License. The full license is in |
|
13 | 13 | # the file COPYING, distributed as part of this software. |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | |
|
16 | 16 | #------------------------------------------------------------------------------- |
|
17 | 17 | # Imports |
|
18 | 18 | #------------------------------------------------------------------------------- |
|
19 | 19 | import re |
|
20 | 20 | |
|
21 | import IPython | |
|
22 | 21 | import sys |
|
23 | 22 | import codeop |
|
24 | import traceback | |
|
25 | 23 | |
|
26 | 24 | from frontendbase import FrontEndBase |
|
27 | 25 | from IPython.kernel.core.interpreter import Interpreter |
|
28 | 26 | |
|
29 | 27 | def common_prefix(strings): |
|
30 | 28 | """ Given a list of strings, return the common prefix between all |
|
31 | 29 | these strings. |
|
32 | 30 | """ |
|
33 | 31 | ref = strings[0] |
|
34 | 32 | prefix = '' |
|
35 | 33 | for size in range(len(ref)): |
|
36 | 34 | test_prefix = ref[:size+1] |
|
37 | 35 | for string in strings[1:]: |
|
38 | 36 | if not string.startswith(test_prefix): |
|
39 | 37 | return prefix |
|
40 | 38 | prefix = test_prefix |
|
41 | 39 | |
|
42 | 40 | return prefix |
|
43 | 41 | |
|
44 | 42 | #------------------------------------------------------------------------------- |
|
45 | 43 | # Base class for the line-oriented front ends |
|
46 | 44 | #------------------------------------------------------------------------------- |
|
47 | 45 | class LineFrontEndBase(FrontEndBase): |
|
48 | 46 | """ Concrete implementation of the FrontEndBase class. This is meant |
|
49 | 47 | to be the base class behind all the frontend that are line-oriented, |
|
50 | 48 | rather than block-oriented. |
|
51 | 49 | """ |
|
52 | 50 | |
|
53 | 51 | # We need to keep the prompt number, to be able to increment |
|
54 | 52 | # it when there is an exception. |
|
55 | 53 | prompt_number = 1 |
|
56 | 54 | |
|
57 | 55 | # We keep a reference to the last result: it helps testing and |
|
58 | 56 | # programatic control of the frontend. |
|
59 | 57 | last_result = dict(number=0) |
|
60 | 58 | |
|
59 | # The last prompt displayed. Useful for continuation prompts. | |
|
60 | last_prompt = '' | |
|
61 | ||
|
61 | 62 | # The input buffer being edited |
|
62 | 63 | input_buffer = '' |
|
63 | 64 | |
|
64 | 65 | # Set to true for debug output |
|
65 | 66 | debug = False |
|
66 | 67 | |
|
67 | 68 | # A banner to print at startup |
|
68 | 69 | banner = None |
|
69 | 70 | |
|
70 | 71 | #-------------------------------------------------------------------------- |
|
71 | 72 | # FrontEndBase interface |
|
72 | 73 | #-------------------------------------------------------------------------- |
|
73 | 74 | |
|
74 | 75 | def __init__(self, shell=None, history=None, banner=None, *args, **kwargs): |
|
75 | 76 | if shell is None: |
|
76 | 77 | shell = Interpreter() |
|
77 | 78 | FrontEndBase.__init__(self, shell=shell, history=history) |
|
78 | 79 | |
|
79 | 80 | if banner is not None: |
|
80 | 81 | self.banner = banner |
|
81 | 82 | |
|
82 | 83 | def start(self): |
|
83 | 84 | """ Put the frontend in a state where it is ready for user |
|
84 | 85 | interaction. |
|
85 | 86 | """ |
|
86 | 87 | if self.banner is not None: |
|
87 | 88 | self.write(self.banner, refresh=False) |
|
88 | 89 | |
|
89 | 90 | self.new_prompt(self.input_prompt_template.substitute(number=1)) |
|
90 | 91 | |
|
91 | 92 | |
|
92 | 93 | def complete(self, line): |
|
93 | 94 | """Complete line in engine's user_ns |
|
94 | 95 | |
|
95 | 96 | Parameters |
|
96 | 97 | ---------- |
|
97 | 98 | line : string |
|
98 | 99 | |
|
99 | 100 | Result |
|
100 | 101 | ------ |
|
101 | 102 | The replacement for the line and the list of possible completions. |
|
102 | 103 | """ |
|
103 | 104 | completions = self.shell.complete(line) |
|
104 | 105 | complete_sep = re.compile('[\s\{\}\[\]\(\)\=]') |
|
105 | 106 | if completions: |
|
106 | 107 | prefix = common_prefix(completions) |
|
107 | 108 | residual = complete_sep.split(line)[:-1] |
|
108 | 109 | line = line[:-len(residual)] + prefix |
|
109 | 110 | return line, completions |
|
110 | 111 | |
|
111 | 112 | |
|
112 | 113 | def render_result(self, result): |
|
113 | 114 | """ Frontend-specific rendering of the result of a calculation |
|
114 | 115 | that has been sent to an engine. |
|
115 | 116 | """ |
|
116 | 117 | if 'stdout' in result and result['stdout']: |
|
117 | 118 | self.write('\n' + result['stdout']) |
|
118 | 119 | if 'display' in result and result['display']: |
|
119 | 120 | self.write("%s%s\n" % ( |
|
120 | 121 | self.output_prompt_template.substitute( |
|
121 | 122 | number=result['number']), |
|
122 | 123 | result['display']['pprint'] |
|
123 | 124 | ) ) |
|
124 | 125 | |
|
125 | 126 | |
|
126 | 127 | def render_error(self, failure): |
|
127 | 128 | """ Frontend-specific rendering of error. |
|
128 | 129 | """ |
|
129 | 130 | self.write('\n\n'+str(failure)+'\n\n') |
|
130 | 131 | return failure |
|
131 | 132 | |
|
132 | 133 | |
|
133 | 134 | def is_complete(self, string): |
|
134 | 135 | """ Check if a string forms a complete, executable set of |
|
135 | 136 | commands. |
|
136 | 137 | |
|
137 | 138 | For the line-oriented frontend, multi-line code is not executed |
|
138 | 139 | as soon as it is complete: the users has to enter two line |
|
139 | 140 | returns. |
|
140 | 141 | """ |
|
141 | 142 | if string in ('', '\n'): |
|
142 | 143 | # Prefiltering, eg through ipython0, may return an empty |
|
143 | 144 | # string although some operations have been accomplished. We |
|
144 | 145 | # thus want to consider an empty string as a complete |
|
145 | 146 | # statement. |
|
146 | 147 | return True |
|
147 | 148 | elif ( len(self.input_buffer.split('\n'))>2 |
|
148 | 149 | and not re.findall(r"\n[\t ]*\n[\t ]*$", string)): |
|
149 | 150 | return False |
|
150 | 151 | else: |
|
151 | 152 | self.capture_output() |
|
152 | 153 | try: |
|
153 | 154 | # Add line returns here, to make sure that the statement is |
|
154 | # complete. | |
|
155 | is_complete = codeop.compile_command(string.rstrip() + '\n\n', | |
|
155 | # complete (except if '\' was used). | |
|
156 | # This should probably be done in a different place (like | |
|
157 | # maybe 'prefilter_input' method? For now, this works. | |
|
158 | clean_string = string.rstrip('\n') | |
|
159 | if not clean_string.endswith('\\'): clean_string +='\n\n' | |
|
160 | is_complete = codeop.compile_command(clean_string, | |
|
156 | 161 | "<string>", "exec") |
|
157 | 162 | self.release_output() |
|
158 | 163 | except Exception, e: |
|
159 | 164 | # XXX: Hack: return True so that the |
|
160 | 165 | # code gets executed and the error captured. |
|
161 | 166 | is_complete = True |
|
162 | 167 | return is_complete |
|
163 | 168 | |
|
164 | 169 | |
|
165 | 170 | def write(self, string, refresh=True): |
|
166 | 171 | """ Write some characters to the display. |
|
167 | 172 | |
|
168 | 173 | Subclass should overide this method. |
|
169 | 174 | |
|
170 | 175 | The refresh keyword argument is used in frontends with an |
|
171 | 176 | event loop, to choose whether the write should trigget an UI |
|
172 | 177 | refresh, and thus be syncrhonous, or not. |
|
173 | 178 | """ |
|
174 | 179 | print >>sys.__stderr__, string |
|
175 | 180 | |
|
176 | 181 | |
|
177 | 182 | def execute(self, python_string, raw_string=None): |
|
178 | 183 | """ Stores the raw_string in the history, and sends the |
|
179 | 184 | python string to the interpreter. |
|
180 | 185 | """ |
|
181 | 186 | if raw_string is None: |
|
182 | 187 | raw_string = python_string |
|
183 | 188 | # Create a false result, in case there is an exception |
|
184 | 189 | self.last_result = dict(number=self.prompt_number) |
|
185 | 190 | |
|
186 | ## try: | |
|
187 | ## self.history.input_cache[-1] = raw_string.rstrip() | |
|
188 | ## result = self.shell.execute(python_string) | |
|
189 | ## self.last_result = result | |
|
190 | ## self.render_result(result) | |
|
191 | ## except: | |
|
192 | ## self.show_traceback() | |
|
193 | ## finally: | |
|
194 | ## self.after_execute() | |
|
195 | ||
|
196 | 191 | try: |
|
197 | 192 | try: |
|
198 | 193 | self.history.input_cache[-1] = raw_string.rstrip() |
|
199 | 194 | result = self.shell.execute(python_string) |
|
200 | 195 | self.last_result = result |
|
201 | 196 | self.render_result(result) |
|
202 | 197 | except: |
|
203 | 198 | self.show_traceback() |
|
204 | 199 | finally: |
|
205 | 200 | self.after_execute() |
|
206 | 201 | |
|
207 | 202 | |
|
208 | 203 | #-------------------------------------------------------------------------- |
|
209 | 204 | # LineFrontEndBase interface |
|
210 | 205 | #-------------------------------------------------------------------------- |
|
211 | 206 | |
|
212 | 207 | def prefilter_input(self, string): |
|
213 | 208 | """ Prefilter the input to turn it in valid python. |
|
214 | 209 | """ |
|
215 | 210 | string = string.replace('\r\n', '\n') |
|
216 | 211 | string = string.replace('\t', 4*' ') |
|
217 | 212 | # Clean the trailing whitespace |
|
218 | 213 | string = '\n'.join(l.rstrip() for l in string.split('\n')) |
|
219 | 214 | return string |
|
220 | 215 | |
|
221 | 216 | |
|
222 | 217 | def after_execute(self): |
|
223 | 218 | """ All the operations required after an execution to put the |
|
224 | 219 | terminal back in a shape where it is usable. |
|
225 | 220 | """ |
|
226 | 221 | self.prompt_number += 1 |
|
227 | 222 | self.new_prompt(self.input_prompt_template.substitute( |
|
228 | 223 | number=(self.last_result['number'] + 1))) |
|
229 | 224 | # Start a new empty history entry |
|
230 | 225 | self._add_history(None, '') |
|
231 | 226 | self.history_cursor = len(self.history.input_cache) - 1 |
|
232 | 227 | |
|
233 | 228 | |
|
234 | 229 | def complete_current_input(self): |
|
235 | 230 | """ Do code completion on current line. |
|
236 | 231 | """ |
|
237 | 232 | if self.debug: |
|
238 | 233 | print >>sys.__stdout__, "complete_current_input", |
|
239 | 234 | line = self.input_buffer |
|
240 | 235 | new_line, completions = self.complete(line) |
|
241 | 236 | if len(completions)>1: |
|
242 | 237 | self.write_completion(completions, new_line=new_line) |
|
243 | 238 | elif not line == new_line: |
|
244 | 239 | self.input_buffer = new_line |
|
245 | 240 | if self.debug: |
|
246 | 241 | print >>sys.__stdout__, 'line', line |
|
247 | 242 | print >>sys.__stdout__, 'new_line', new_line |
|
248 | 243 | print >>sys.__stdout__, completions |
|
249 | 244 | |
|
250 | 245 | |
|
251 | 246 | def get_line_width(self): |
|
252 | 247 | """ Return the width of the line in characters. |
|
253 | 248 | """ |
|
254 | 249 | return 80 |
|
255 | 250 | |
|
256 | 251 | |
|
257 | 252 | def write_completion(self, possibilities, new_line=None): |
|
258 | 253 | """ Write the list of possible completions. |
|
259 | 254 | |
|
260 | 255 | new_line is the completed input line that should be displayed |
|
261 | 256 | after the completion are writen. If None, the input_buffer |
|
262 | 257 | before the completion is used. |
|
263 | 258 | """ |
|
264 | 259 | if new_line is None: |
|
265 | 260 | new_line = self.input_buffer |
|
266 | 261 | |
|
267 | 262 | self.write('\n') |
|
268 | 263 | max_len = len(max(possibilities, key=len)) + 1 |
|
269 | 264 | |
|
270 | 265 | # Now we check how much symbol we can put on a line... |
|
271 | 266 | chars_per_line = self.get_line_width() |
|
272 | 267 | symbols_per_line = max(1, chars_per_line/max_len) |
|
273 | 268 | |
|
274 | 269 | pos = 1 |
|
275 | buf = [] | |
|
270 | completion_string = [] | |
|
276 | 271 | for symbol in possibilities: |
|
277 | 272 | if pos < symbols_per_line: |
|
278 |
|
|
|
273 | completion_string.append(symbol.ljust(max_len)) | |
|
279 | 274 | pos += 1 |
|
280 | 275 | else: |
|
281 |
|
|
|
276 | completion_string.append(symbol.rstrip() + '\n') | |
|
282 | 277 | pos = 1 |
|
283 |
self.write(''.join( |
|
|
278 | self.write(''.join(completion_string)) | |
|
284 | 279 | self.new_prompt(self.input_prompt_template.substitute( |
|
285 | 280 | number=self.last_result['number'] + 1)) |
|
286 | 281 | self.input_buffer = new_line |
|
287 | 282 | |
|
288 | 283 | |
|
289 | 284 | def new_prompt(self, prompt): |
|
290 | 285 | """ Prints a prompt and starts a new editing buffer. |
|
291 | 286 | |
|
292 | 287 | Subclasses should use this method to make sure that the |
|
293 | 288 | terminal is put in a state favorable for a new line |
|
294 | 289 | input. |
|
295 | 290 | """ |
|
296 | 291 | self.input_buffer = '' |
|
297 | 292 | self.write(prompt) |
|
298 | 293 | |
|
299 | 294 | |
|
295 | def continuation_prompt(self): | |
|
296 | """Returns the current continuation prompt. | |
|
297 | """ | |
|
298 | return ("."*(len(self.last_prompt)-2) + ': ') | |
|
299 | ||
|
300 | ||
|
301 | def execute_command(self, command, hidden=False): | |
|
302 | """ Execute a command, not only in the model, but also in the | |
|
303 | view, if any. | |
|
304 | """ | |
|
305 | return self.shell.execute(command) | |
|
306 | ||
|
300 | 307 | #-------------------------------------------------------------------------- |
|
301 | 308 | # Private API |
|
302 | 309 | #-------------------------------------------------------------------------- |
|
303 | 310 | |
|
304 | def _on_enter(self): | |
|
311 | def _on_enter(self, new_line_pos=0): | |
|
305 | 312 | """ Called when the return key is pressed in a line editing |
|
306 | 313 | buffer. |
|
314 | ||
|
315 | Parameters | |
|
316 | ---------- | |
|
317 | new_line_pos : integer, optional | |
|
318 | Position of the new line to add, starting from the | |
|
319 | end (0 adds a new line after the last line, -1 before | |
|
320 | the last line...) | |
|
321 | ||
|
322 | Returns | |
|
323 | ------- | |
|
324 | True if execution is triggered | |
|
307 | 325 | """ |
|
308 | 326 | current_buffer = self.input_buffer |
|
309 | cleaned_buffer = self.prefilter_input(current_buffer) | |
|
327 | # XXX: This string replace is ugly, but there should be no way it | |
|
328 | # fails. | |
|
329 | prompt_less_buffer = re.sub('^' + self.continuation_prompt(), | |
|
330 | '', current_buffer).replace('\n' + self.continuation_prompt(), | |
|
331 | '\n') | |
|
332 | cleaned_buffer = self.prefilter_input(prompt_less_buffer) | |
|
310 | 333 | if self.is_complete(cleaned_buffer): |
|
311 | 334 | self.execute(cleaned_buffer, raw_string=current_buffer) |
|
335 | return True | |
|
312 | 336 | else: |
|
313 | self.input_buffer += self._get_indent_string( | |
|
314 | current_buffer[:-1]) | |
|
315 |
|
|
|
316 | self.input_buffer += '\t\t' | |
|
317 | if current_buffer[:-1].split('\n')[-1].rstrip().endswith(':'): | |
|
318 | self.input_buffer += '\t' | |
|
319 | ||
|
337 | # Start a new line. | |
|
338 | new_line_pos = -new_line_pos | |
|
339 | lines = current_buffer.split('\n')[:-1] | |
|
340 | prompt_less_lines = prompt_less_buffer.split('\n') | |
|
341 | # Create the new line, with the continuation prompt, and the | |
|
342 | # same amount of indent than the line above it. | |
|
343 | new_line = self.continuation_prompt() + \ | |
|
344 | self._get_indent_string('\n'.join( | |
|
345 | prompt_less_lines[:new_line_pos-1])) | |
|
346 | if len(lines) == 1: | |
|
347 | # We are starting a first continuation line. Indent it. | |
|
348 | new_line += '\t' | |
|
349 | elif current_buffer[:-1].split('\n')[-1].rstrip().endswith(':'): | |
|
350 | # The last line ends with ":", autoindent the new line. | |
|
351 | new_line += '\t' | |
|
352 | ||
|
353 | if new_line_pos == 0: | |
|
354 | lines.append(new_line) | |
|
355 | else: | |
|
356 | lines.insert(new_line_pos, new_line) | |
|
357 | self.input_buffer = '\n'.join(lines) | |
|
358 | ||
|
320 | 359 | |
|
321 | 360 | def _get_indent_string(self, string): |
|
322 | 361 | """ Return the string of whitespace that prefixes a line. Used to |
|
323 | 362 | add the right amount of indendation when creating a new line. |
|
324 | 363 | """ |
|
325 | 364 | string = string.replace('\t', ' '*4) |
|
326 | 365 | string = string.split('\n')[-1] |
|
327 | 366 | indent_chars = len(string) - len(string.lstrip()) |
|
328 | 367 | indent_string = '\t'*(indent_chars // 4) + \ |
|
329 | 368 | ' '*(indent_chars % 4) |
|
330 | 369 | |
|
331 | 370 | return indent_string |
|
332 | 371 | |
|
333 | 372 |
@@ -1,246 +1,285 b'' | |||
|
1 | 1 | """ |
|
2 | 2 | Frontend class that uses IPython0 to prefilter the inputs. |
|
3 | 3 | |
|
4 | 4 | Using the IPython0 mechanism gives us access to the magics. |
|
5 | 5 | |
|
6 | 6 | This is a transitory class, used here to do the transition between |
|
7 | 7 | ipython0 and ipython1. This class is meant to be short-lived as more |
|
8 | 8 | functionnality is abstracted out of ipython0 in reusable functions and |
|
9 | 9 | is added on the interpreter. This class can be a used to guide this |
|
10 | 10 | refactoring. |
|
11 | 11 | """ |
|
12 | 12 | __docformat__ = "restructuredtext en" |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Copyright (C) 2008 The IPython Development Team |
|
16 | 16 | # |
|
17 | 17 | # Distributed under the terms of the BSD License. The full license is in |
|
18 | 18 | # the file COPYING, distributed as part of this software. |
|
19 | 19 | #------------------------------------------------------------------------------- |
|
20 | 20 | |
|
21 | 21 | #------------------------------------------------------------------------------- |
|
22 | 22 | # Imports |
|
23 | 23 | #------------------------------------------------------------------------------- |
|
24 | 24 | import sys |
|
25 | ||
|
26 | from linefrontendbase import LineFrontEndBase, common_prefix | |
|
27 | from frontendbase import FrontEndBase | |
|
25 | import pydoc | |
|
26 | import os | |
|
27 | import re | |
|
28 | import __builtin__ | |
|
28 | 29 | |
|
29 | 30 | from IPython.ipmaker import make_IPython |
|
30 | 31 | from IPython.ipapi import IPApi |
|
31 | 32 | from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap |
|
32 | 33 | |
|
33 | 34 | from IPython.kernel.core.sync_traceback_trap import SyncTracebackTrap |
|
34 | 35 | |
|
35 | 36 | from IPython.genutils import Term |
|
36 | import pydoc | |
|
37 | import os | |
|
38 | import sys | |
|
37 | ||
|
38 | from linefrontendbase import LineFrontEndBase, common_prefix | |
|
39 | 39 | |
|
40 | 40 | |
|
41 | 41 | def mk_system_call(system_call_function, command): |
|
42 | 42 | """ given a os.system replacement, and a leading string command, |
|
43 | 43 | returns a function that will execute the command with the given |
|
44 | 44 | argument string. |
|
45 | 45 | """ |
|
46 | 46 | def my_system_call(args): |
|
47 | 47 | system_call_function("%s %s" % (command, args)) |
|
48 | ||
|
49 | my_system_call.__doc__ = "Calls %s" % command | |
|
48 | 50 | return my_system_call |
|
49 | 51 | |
|
50 | 52 | #------------------------------------------------------------------------------- |
|
51 | 53 | # Frontend class using ipython0 to do the prefiltering. |
|
52 | 54 | #------------------------------------------------------------------------------- |
|
53 | 55 | class PrefilterFrontEnd(LineFrontEndBase): |
|
54 | 56 | """ Class that uses ipython0 to do prefilter the input, do the |
|
55 | 57 | completion and the magics. |
|
56 | 58 | |
|
57 | 59 | The core trick is to use an ipython0 instance to prefilter the |
|
58 | 60 | input, and share the namespace between the interpreter instance used |
|
59 | 61 | to execute the statements and the ipython0 used for code |
|
60 | 62 | completion... |
|
61 | 63 | """ |
|
62 | 64 | |
|
63 | 65 | debug = False |
|
64 | 66 | |
|
65 | def __init__(self, ipython0=None, *args, **kwargs): | |
|
67 | def __init__(self, ipython0=None, argv=None, *args, **kwargs): | |
|
66 | 68 | """ Parameters: |
|
67 | 69 | ----------- |
|
68 | 70 | |
|
69 | 71 | ipython0: an optional ipython0 instance to use for command |
|
70 | 72 | prefiltering and completion. |
|
73 | ||
|
74 | argv : list, optional | |
|
75 | Used as the instance's argv value. If not given, [] is used. | |
|
71 | 76 | """ |
|
77 | if argv is None: | |
|
78 | argv = [] | |
|
79 | # This is a hack to avoid the IPython exception hook to trigger | |
|
80 | # on exceptions (https://bugs.launchpad.net/bugs/337105) | |
|
81 | # XXX: This is horrible: module-leve monkey patching -> side | |
|
82 | # effects. | |
|
83 | from IPython import iplib | |
|
84 | iplib.InteractiveShell.isthreaded = True | |
|
85 | ||
|
72 | 86 | LineFrontEndBase.__init__(self, *args, **kwargs) |
|
73 | 87 | self.shell.output_trap = RedirectorOutputTrap( |
|
74 | 88 | out_callback=self.write, |
|
75 | 89 | err_callback=self.write, |
|
76 | 90 | ) |
|
77 | 91 | self.shell.traceback_trap = SyncTracebackTrap( |
|
78 | 92 | formatters=self.shell.traceback_trap.formatters, |
|
79 | 93 | ) |
|
80 | 94 | |
|
81 | 95 | # Start the ipython0 instance: |
|
82 | 96 | self.save_output_hooks() |
|
83 | 97 | if ipython0 is None: |
|
84 | 98 | # Instanciate an IPython0 interpreter to be able to use the |
|
85 | 99 | # prefiltering. |
|
100 | # Suppress all key input, to avoid waiting | |
|
101 | def my_rawinput(x=None): | |
|
102 | return '\n' | |
|
103 | old_rawinput = __builtin__.raw_input | |
|
104 | __builtin__.raw_input = my_rawinput | |
|
86 | 105 | # XXX: argv=[] is a bit bold. |
|
87 |
ipython0 = make_IPython(argv= |
|
|
106 | ipython0 = make_IPython(argv=argv, | |
|
88 | 107 | user_ns=self.shell.user_ns, |
|
89 | 108 | user_global_ns=self.shell.user_global_ns) |
|
109 | __builtin__.raw_input = old_rawinput | |
|
90 | 110 | self.ipython0 = ipython0 |
|
91 | 111 | # Set the pager: |
|
92 | 112 | self.ipython0.set_hook('show_in_pager', |
|
93 | 113 | lambda s, string: self.write("\n" + string)) |
|
94 | 114 | self.ipython0.write = self.write |
|
95 | 115 | self._ip = _ip = IPApi(self.ipython0) |
|
96 | 116 | # Make sure the raw system call doesn't get called, as we don't |
|
97 | 117 | # have a stdin accessible. |
|
98 | 118 | self._ip.system = self.system_call |
|
99 | 119 | # XXX: Muck around with magics so that they work better |
|
100 | 120 | # in our environment |
|
101 | self.ipython0.magic_ls = mk_system_call(self.system_call, | |
|
102 | 'ls -CF') | |
|
121 | if not sys.platform.startswith('win'): | |
|
122 | self.ipython0.magic_ls = mk_system_call(self.system_call, | |
|
123 | 'ls -CF') | |
|
103 | 124 | # And now clean up the mess created by ipython0 |
|
104 | 125 | self.release_output() |
|
105 | 126 | |
|
106 | 127 | |
|
107 | 128 | if not 'banner' in kwargs and self.banner is None: |
|
108 |
self.banner = self.ipython0.BANNER |
|
|
109 | This is the wx frontend, by Gael Varoquaux. This is EXPERIMENTAL code.""" | |
|
129 | self.banner = self.ipython0.BANNER | |
|
110 | 130 | |
|
131 | # FIXME: __init__ and start should be two different steps | |
|
111 | 132 | self.start() |
|
112 | 133 | |
|
113 | 134 | #-------------------------------------------------------------------------- |
|
114 | 135 | # FrontEndBase interface |
|
115 | 136 | #-------------------------------------------------------------------------- |
|
116 | 137 | |
|
117 | 138 | def show_traceback(self): |
|
118 | 139 | """ Use ipython0 to capture the last traceback and display it. |
|
119 | 140 | """ |
|
120 | self.capture_output() | |
|
141 | # Don't do the capture; the except_hook has already done some | |
|
142 | # modifications to the IO streams, if we store them, we'll be | |
|
143 | # storing the wrong ones. | |
|
144 | #self.capture_output() | |
|
121 | 145 | self.ipython0.showtraceback(tb_offset=-1) |
|
122 | 146 | self.release_output() |
|
123 | 147 | |
|
124 | 148 | |
|
125 | 149 | def execute(self, python_string, raw_string=None): |
|
126 | 150 | if self.debug: |
|
127 | 151 | print 'Executing Python code:', repr(python_string) |
|
128 | 152 | self.capture_output() |
|
129 | 153 | LineFrontEndBase.execute(self, python_string, |
|
130 | 154 | raw_string=raw_string) |
|
131 | 155 | self.release_output() |
|
132 | 156 | |
|
133 | 157 | |
|
134 | 158 | def save_output_hooks(self): |
|
135 | 159 | """ Store all the output hooks we can think of, to be able to |
|
136 | 160 | restore them. |
|
137 | 161 | |
|
138 | 162 | We need to do this early, as starting the ipython0 instance will |
|
139 | 163 | screw ouput hooks. |
|
140 | 164 | """ |
|
141 | 165 | self.__old_cout_write = Term.cout.write |
|
142 | 166 | self.__old_cerr_write = Term.cerr.write |
|
143 | 167 | self.__old_stdout = sys.stdout |
|
144 | 168 | self.__old_stderr= sys.stderr |
|
145 | 169 | self.__old_help_output = pydoc.help.output |
|
146 | 170 | self.__old_display_hook = sys.displayhook |
|
147 | 171 | |
|
148 | 172 | |
|
149 | 173 | def capture_output(self): |
|
150 | 174 | """ Capture all the output mechanisms we can think of. |
|
151 | 175 | """ |
|
152 | 176 | self.save_output_hooks() |
|
153 | 177 | Term.cout.write = self.write |
|
154 | 178 | Term.cerr.write = self.write |
|
155 | 179 | sys.stdout = Term.cout |
|
156 | 180 | sys.stderr = Term.cerr |
|
157 | 181 | pydoc.help.output = self.shell.output_trap.out |
|
158 | 182 | |
|
159 | 183 | |
|
160 | 184 | def release_output(self): |
|
161 | 185 | """ Release all the different captures we have made. |
|
162 | 186 | """ |
|
163 | 187 | Term.cout.write = self.__old_cout_write |
|
164 | 188 | Term.cerr.write = self.__old_cerr_write |
|
165 | 189 | sys.stdout = self.__old_stdout |
|
166 | 190 | sys.stderr = self.__old_stderr |
|
167 | 191 | pydoc.help.output = self.__old_help_output |
|
168 | 192 | sys.displayhook = self.__old_display_hook |
|
169 | 193 | |
|
170 | 194 | |
|
171 | 195 | def complete(self, line): |
|
172 | 196 | # FIXME: This should be factored out in the linefrontendbase |
|
173 | 197 | # method. |
|
174 | word = line.split('\n')[-1].split(' ')[-1] | |
|
198 | word = self._get_completion_text(line) | |
|
175 | 199 | completions = self.ipython0.complete(word) |
|
176 | 200 | # FIXME: The proper sort should be done in the complete method. |
|
177 | 201 | key = lambda x: x.replace('_', '') |
|
178 | 202 | completions.sort(key=key) |
|
179 | 203 | if completions: |
|
180 | 204 | prefix = common_prefix(completions) |
|
181 | 205 | line = line[:-len(word)] + prefix |
|
182 | 206 | return line, completions |
|
183 | 207 | |
|
184 | 208 | |
|
185 | 209 | #-------------------------------------------------------------------------- |
|
186 | 210 | # LineFrontEndBase interface |
|
187 | 211 | #-------------------------------------------------------------------------- |
|
188 | 212 | |
|
189 | 213 | def prefilter_input(self, input_string): |
|
190 | 214 | """ Using IPython0 to prefilter the commands to turn them |
|
191 | 215 | in executable statements that are valid Python strings. |
|
192 | 216 | """ |
|
193 | 217 | input_string = LineFrontEndBase.prefilter_input(self, input_string) |
|
194 | 218 | filtered_lines = [] |
|
195 | 219 | # The IPython0 prefilters sometime produce output. We need to |
|
196 | 220 | # capture it. |
|
197 | 221 | self.capture_output() |
|
198 | 222 | self.last_result = dict(number=self.prompt_number) |
|
199 | 223 | |
|
200 | 224 | ## try: |
|
201 | 225 | ## for line in input_string.split('\n'): |
|
202 | 226 | ## filtered_lines.append( |
|
203 | 227 | ## self.ipython0.prefilter(line, False).rstrip()) |
|
204 | 228 | ## except: |
|
205 | 229 | ## # XXX: probably not the right thing to do. |
|
206 | 230 | ## self.ipython0.showsyntaxerror() |
|
207 | 231 | ## self.after_execute() |
|
208 | 232 | ## finally: |
|
209 | 233 | ## self.release_output() |
|
210 | 234 | |
|
211 | 235 | |
|
212 | 236 | try: |
|
213 | 237 | try: |
|
214 | 238 | for line in input_string.split('\n'): |
|
215 | 239 | filtered_lines.append( |
|
216 | 240 | self.ipython0.prefilter(line, False).rstrip()) |
|
217 | 241 | except: |
|
218 | 242 | # XXX: probably not the right thing to do. |
|
219 | 243 | self.ipython0.showsyntaxerror() |
|
220 | 244 | self.after_execute() |
|
221 | 245 | finally: |
|
222 | 246 | self.release_output() |
|
223 | 247 | |
|
224 | 248 | |
|
225 | 249 | |
|
226 | 250 | # Clean up the trailing whitespace, to avoid indentation errors |
|
227 | 251 | filtered_string = '\n'.join(filtered_lines) |
|
228 | 252 | return filtered_string |
|
229 | 253 | |
|
230 | 254 | |
|
231 | 255 | #-------------------------------------------------------------------------- |
|
232 | 256 | # PrefilterFrontEnd interface |
|
233 | 257 | #-------------------------------------------------------------------------- |
|
234 | 258 | |
|
235 | 259 | def system_call(self, command_string): |
|
236 | 260 | """ Allows for frontend to define their own system call, to be |
|
237 | 261 | able capture output and redirect input. |
|
238 | 262 | """ |
|
239 | 263 | return os.system(command_string) |
|
240 | 264 | |
|
241 | 265 | |
|
242 | 266 | def do_exit(self): |
|
243 | 267 | """ Exit the shell, cleanup and save the history. |
|
244 | 268 | """ |
|
245 | 269 | self.ipython0.atexit_operations() |
|
246 | 270 | |
|
271 | ||
|
272 | def _get_completion_text(self, line): | |
|
273 | """ Returns the text to be completed by breaking the line at specified | |
|
274 | delimiters. | |
|
275 | """ | |
|
276 | # Break at: spaces, '=', all parentheses (except if balanced). | |
|
277 | # FIXME2: In the future, we need to make the implementation similar to | |
|
278 | # that in the 'pyreadline' module (modes/basemode.py) where we break at | |
|
279 | # each delimiter and try to complete the residual line, until we get a | |
|
280 | # successful list of completions. | |
|
281 | expression = '\s|=|,|:|\((?!.*\))|\[(?!.*\])|\{(?!.*\})' | |
|
282 | complete_sep = re.compile(expression) | |
|
283 | text = complete_sep.split(line)[-1] | |
|
284 | return text | |
|
285 |
|
1 | NO CONTENT: file renamed from IPython/frontend/_process/__init__.py to IPython/frontend/process/__init__.py |
@@ -1,179 +1,184 b'' | |||
|
1 | 1 | # Addapted from killableprocess.py. |
|
2 | 2 | #______________________________________________________________________________ |
|
3 | 3 | # |
|
4 | 4 | # killableprocess - subprocesses which can be reliably killed |
|
5 | 5 | # |
|
6 | 6 | # Parts of this module are copied from the subprocess.py file contained |
|
7 | 7 | # in the Python distribution. |
|
8 | 8 | # |
|
9 | 9 | # Copyright (c) 2003-2004 by Peter Astrand <astrand@lysator.liu.se> |
|
10 | 10 | # |
|
11 | 11 | # Additions and modifications written by Benjamin Smedberg |
|
12 | 12 | # <benjamin@smedbergs.us> are Copyright (c) 2006 by the Mozilla Foundation |
|
13 | 13 | # <http://www.mozilla.org/> |
|
14 | 14 | # |
|
15 | 15 | # By obtaining, using, and/or copying this software and/or its |
|
16 | 16 | # associated documentation, you agree that you have read, understood, |
|
17 | 17 | # and will comply with the following terms and conditions: |
|
18 | 18 | # |
|
19 | 19 | # Permission to use, copy, modify, and distribute this software and |
|
20 | 20 | # its associated documentation for any purpose and without fee is |
|
21 | 21 | # hereby granted, provided that the above copyright notice appears in |
|
22 | 22 | # all copies, and that both that copyright notice and this permission |
|
23 | 23 | # notice appear in supporting documentation, and that the name of the |
|
24 | 24 | # author not be used in advertising or publicity pertaining to |
|
25 | 25 | # distribution of the software without specific, written prior |
|
26 | 26 | # permission. |
|
27 | 27 | # |
|
28 | 28 | # THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
|
29 | 29 | # INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. |
|
30 | 30 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
|
31 | 31 | # CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS |
|
32 | 32 | # OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
|
33 | 33 | # NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION |
|
34 | 34 | # WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|
35 | 35 | |
|
36 | 36 | r"""killableprocess - Subprocesses which can be reliably killed |
|
37 | 37 | |
|
38 | 38 | This module is a subclass of the builtin "subprocess" module. It allows |
|
39 | 39 | processes that launch subprocesses to be reliably killed on Windows (via the Popen.kill() method. |
|
40 | 40 | |
|
41 | 41 | It also adds a timeout argument to Wait() for a limited period of time before |
|
42 | 42 | forcefully killing the process. |
|
43 | 43 | |
|
44 | 44 | Note: On Windows, this module requires Windows 2000 or higher (no support for |
|
45 | 45 | Windows 95, 98, or NT 4.0). It also requires ctypes, which is bundled with |
|
46 | 46 | Python 2.5+ or available from http://python.net/crew/theller/ctypes/ |
|
47 | 47 | """ |
|
48 | 48 | |
|
49 | 49 | import subprocess |
|
50 | 50 | from subprocess import PIPE |
|
51 | 51 | import sys |
|
52 | 52 | import os |
|
53 | 53 | import types |
|
54 | 54 | |
|
55 | 55 | try: |
|
56 | 56 | from subprocess import CalledProcessError |
|
57 | 57 | except ImportError: |
|
58 | 58 | # Python 2.4 doesn't implement CalledProcessError |
|
59 | 59 | class CalledProcessError(Exception): |
|
60 | 60 | """This exception is raised when a process run by check_call() returns |
|
61 | 61 | a non-zero exit status. The exit status will be stored in the |
|
62 | 62 | returncode attribute.""" |
|
63 | 63 | def __init__(self, returncode, cmd): |
|
64 | 64 | self.returncode = returncode |
|
65 | 65 | self.cmd = cmd |
|
66 | 66 | def __str__(self): |
|
67 | 67 | return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode) |
|
68 | 68 | |
|
69 | 69 | mswindows = (sys.platform == "win32") |
|
70 | 70 | |
|
71 | 71 | skip = False |
|
72 | 72 | |
|
73 | 73 | if mswindows: |
|
74 | 74 | import platform |
|
75 | 75 | if platform.uname()[3] == '' or platform.uname()[3] > '6.0.6000': |
|
76 | 76 | # Killable process does not work under vista when starting for |
|
77 | 77 | # something else than cmd. |
|
78 | 78 | skip = True |
|
79 | 79 | else: |
|
80 | 80 | import winprocess |
|
81 | 81 | else: |
|
82 | 82 | import signal |
|
83 | 83 | |
|
84 | 84 | if not mswindows: |
|
85 | 85 | def DoNothing(*args): |
|
86 | 86 | pass |
|
87 | 87 | |
|
88 | 88 | |
|
89 | 89 | if skip: |
|
90 | 90 | Popen = subprocess.Popen |
|
91 | 91 | else: |
|
92 | 92 | class Popen(subprocess.Popen): |
|
93 | 93 | if not mswindows: |
|
94 | 94 | # Override __init__ to set a preexec_fn |
|
95 | 95 | def __init__(self, *args, **kwargs): |
|
96 | 96 | if len(args) >= 7: |
|
97 | 97 | raise Exception("Arguments preexec_fn and after must be passed by keyword.") |
|
98 | 98 | |
|
99 | 99 | real_preexec_fn = kwargs.pop("preexec_fn", None) |
|
100 | 100 | def setpgid_preexec_fn(): |
|
101 | 101 | os.setpgid(0, 0) |
|
102 | 102 | if real_preexec_fn: |
|
103 | 103 | apply(real_preexec_fn) |
|
104 | 104 | |
|
105 | 105 | kwargs['preexec_fn'] = setpgid_preexec_fn |
|
106 | 106 | |
|
107 | 107 | subprocess.Popen.__init__(self, *args, **kwargs) |
|
108 | 108 | |
|
109 | 109 | if mswindows: |
|
110 | 110 | def _execute_child(self, args, executable, preexec_fn, close_fds, |
|
111 | 111 | cwd, env, universal_newlines, startupinfo, |
|
112 | 112 | creationflags, shell, |
|
113 | 113 | p2cread, p2cwrite, |
|
114 | 114 | c2pread, c2pwrite, |
|
115 | 115 | errread, errwrite): |
|
116 | 116 | if not isinstance(args, types.StringTypes): |
|
117 | 117 | args = subprocess.list2cmdline(args) |
|
118 | 118 | |
|
119 | 119 | if startupinfo is None: |
|
120 | 120 | startupinfo = winprocess.STARTUPINFO() |
|
121 | 121 | |
|
122 | 122 | if None not in (p2cread, c2pwrite, errwrite): |
|
123 | 123 | startupinfo.dwFlags |= winprocess.STARTF_USESTDHANDLES |
|
124 | 124 | |
|
125 | 125 | startupinfo.hStdInput = int(p2cread) |
|
126 | 126 | startupinfo.hStdOutput = int(c2pwrite) |
|
127 | 127 | startupinfo.hStdError = int(errwrite) |
|
128 | 128 | if shell: |
|
129 | 129 | startupinfo.dwFlags |= winprocess.STARTF_USESHOWWINDOW |
|
130 | 130 | startupinfo.wShowWindow = winprocess.SW_HIDE |
|
131 | 131 | comspec = os.environ.get("COMSPEC", "cmd.exe") |
|
132 | 132 | args = comspec + " /c " + args |
|
133 | 133 | |
|
134 | 134 | # We create a new job for this process, so that we can kill |
|
135 | 135 | # the process and any sub-processes |
|
136 | 136 | self._job = winprocess.CreateJobObject() |
|
137 | 137 | |
|
138 | 138 | creationflags |= winprocess.CREATE_SUSPENDED |
|
139 | 139 | creationflags |= winprocess.CREATE_UNICODE_ENVIRONMENT |
|
140 | 140 | |
|
141 | 141 | hp, ht, pid, tid = winprocess.CreateProcess( |
|
142 | 142 | executable, args, |
|
143 | 143 | None, None, # No special security |
|
144 | 144 | 1, # Must inherit handles! |
|
145 | 145 | creationflags, |
|
146 | 146 | winprocess.EnvironmentBlock(env), |
|
147 | 147 | cwd, startupinfo) |
|
148 | 148 | |
|
149 | 149 | self._child_created = True |
|
150 | 150 | self._handle = hp |
|
151 | 151 | self._thread = ht |
|
152 | 152 | self.pid = pid |
|
153 | 153 | |
|
154 | winprocess.AssignProcessToJobObject(self._job, hp) | |
|
154 | # XXX: A try/except to fix UAC-related problems under | |
|
155 | # Windows Vista, when reparenting jobs. | |
|
156 | try: | |
|
157 | winprocess.AssignProcessToJobObject(self._job, hp) | |
|
158 | except WindowsError: | |
|
159 | pass | |
|
155 | 160 | winprocess.ResumeThread(ht) |
|
156 | 161 | |
|
157 | 162 | if p2cread is not None: |
|
158 | 163 | p2cread.Close() |
|
159 | 164 | if c2pwrite is not None: |
|
160 | 165 | c2pwrite.Close() |
|
161 | 166 | if errwrite is not None: |
|
162 | 167 | errwrite.Close() |
|
163 | 168 | |
|
164 | 169 | def kill(self, group=True): |
|
165 | 170 | """Kill the process. If group=True, all sub-processes will also be killed.""" |
|
166 | 171 | if mswindows: |
|
167 | 172 | if group: |
|
168 | 173 | winprocess.TerminateJobObject(self._job, 127) |
|
169 | 174 | else: |
|
170 | 175 | winprocess.TerminateProcess(self._handle, 127) |
|
171 | 176 | self.returncode = 127 |
|
172 | 177 | else: |
|
173 | 178 | if group: |
|
174 | 179 | os.killpg(self.pid, signal.SIGKILL) |
|
175 | 180 | else: |
|
176 | 181 | os.kill(self.pid, signal.SIGKILL) |
|
177 | 182 | self.returncode = -9 |
|
178 | 183 | |
|
179 | 184 |
|
1 | NO CONTENT: file renamed from IPython/frontend/_process/pipedprocess.py to IPython/frontend/process/pipedprocess.py |
|
1 | NO CONTENT: file renamed from IPython/frontend/_process/winprocess.py to IPython/frontend/process/winprocess.py |
@@ -1,155 +1,109 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | """This file contains unittests for the frontendbase module.""" | |
|
3 | """This file contains unittests for the asyncfrontendbase module.""" | |
|
4 | 4 | |
|
5 | 5 | __docformat__ = "restructuredtext en" |
|
6 | 6 | |
|
7 | 7 | #--------------------------------------------------------------------------- |
|
8 | 8 | # Copyright (C) 2008 The IPython Development Team |
|
9 | 9 | # |
|
10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | 11 | # the file COPYING, distributed as part of this software. |
|
12 | 12 | #--------------------------------------------------------------------------- |
|
13 | 13 | |
|
14 | 14 | #--------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #--------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | import unittest | |
|
18 | # Tell nose to skip this module | |
|
19 | __test__ = {} | |
|
19 | 20 | |
|
20 | try: | |
|
21 |
|
|
|
22 |
|
|
|
23 |
|
|
|
24 | except ImportError: | |
|
25 | import nose | |
|
26 | raise nose.SkipTest("This test requires zope.interface, Twisted and Foolscap") | |
|
21 | from twisted.trial import unittest | |
|
22 | from IPython.frontend.asyncfrontendbase import AsyncFrontEndBase | |
|
23 | from IPython.frontend import frontendbase | |
|
24 | from IPython.kernel.engineservice import EngineService | |
|
25 | from IPython.testing.parametric import Parametric, parametric | |
|
27 | 26 | |
|
28 | from IPython.testing.decorators import skip | |
|
29 | 27 | |
|
30 | 28 | class FrontEndCallbackChecker(AsyncFrontEndBase): |
|
31 | 29 | """FrontEndBase subclass for checking callbacks""" |
|
32 | 30 | def __init__(self, engine=None, history=None): |
|
33 | 31 | super(FrontEndCallbackChecker, self).__init__(engine=engine, |
|
34 | 32 | history=history) |
|
35 | 33 | self.updateCalled = False |
|
36 | 34 | self.renderResultCalled = False |
|
37 | 35 | self.renderErrorCalled = False |
|
38 | 36 | |
|
39 | 37 | def update_cell_prompt(self, result, blockID=None): |
|
40 | 38 | self.updateCalled = True |
|
41 | 39 | return result |
|
42 | 40 | |
|
43 | 41 | def render_result(self, result): |
|
44 | 42 | self.renderResultCalled = True |
|
45 | 43 | return result |
|
46 | 44 | |
|
47 | ||
|
48 | 45 | def render_error(self, failure): |
|
49 | 46 | self.renderErrorCalled = True |
|
50 | 47 | return failure |
|
51 | ||
|
52 | 48 | |
|
53 | 49 | |
|
54 | ||
|
55 | 50 | class TestAsyncFrontendBase(unittest.TestCase): |
|
56 | 51 | def setUp(self): |
|
57 | 52 | """Setup the EngineService and FrontEndBase""" |
|
58 | 53 | |
|
59 | 54 | self.fb = FrontEndCallbackChecker(engine=EngineService()) |
|
60 | 55 | |
|
61 | 56 | def test_implements_IFrontEnd(self): |
|
62 | assert(frontendbase.IFrontEnd.implementedBy( | |
|
57 | self.assert_(frontendbase.IFrontEnd.implementedBy( | |
|
63 | 58 | AsyncFrontEndBase)) |
|
64 | 59 | |
|
65 | 60 | def test_is_complete_returns_False_for_incomplete_block(self): |
|
66 | """""" | |
|
67 | ||
|
68 | 61 | block = """def test(a):""" |
|
69 | ||
|
70 | assert(self.fb.is_complete(block) == False) | |
|
62 | self.assert_(self.fb.is_complete(block) == False) | |
|
71 | 63 | |
|
72 | 64 | def test_is_complete_returns_True_for_complete_block(self): |
|
73 | """""" | |
|
74 | ||
|
75 | 65 | block = """def test(a): pass""" |
|
76 | ||
|
77 | assert(self.fb.is_complete(block)) | |
|
78 | ||
|
66 | self.assert_(self.fb.is_complete(block)) | |
|
79 | 67 | block = """a=3""" |
|
80 | ||
|
81 | assert(self.fb.is_complete(block)) | |
|
68 | self.assert_(self.fb.is_complete(block)) | |
|
82 | 69 | |
|
83 | 70 | def test_blockID_added_to_result(self): |
|
84 | 71 | block = """3+3""" |
|
85 | ||
|
86 | 72 | d = self.fb.execute(block, blockID='TEST_ID') |
|
87 | ||
|
88 | d.addCallback(self.checkBlockID, expected='TEST_ID') | |
|
73 | d.addCallback(lambda r: self.assert_(r['blockID']=='TEST_ID')) | |
|
74 | return d | |
|
89 | 75 | |
|
90 | 76 | def test_blockID_added_to_failure(self): |
|
91 | 77 | block = "raise Exception()" |
|
92 | ||
|
93 | 78 | d = self.fb.execute(block,blockID='TEST_ID') |
|
94 |
d.addErrback(self. |
|
|
95 | ||
|
96 | def checkBlockID(self, result, expected=""): | |
|
97 | assert(result['blockID'] == expected) | |
|
98 | ||
|
99 | ||
|
100 | def checkFailureID(self, failure, expected=""): | |
|
101 | assert(failure.blockID == expected) | |
|
102 | ||
|
79 | d.addErrback(lambda f: self.assert_(f.blockID=='TEST_ID')) | |
|
80 | return d | |
|
103 | 81 | |
|
104 | 82 | def test_callbacks_added_to_execute(self): |
|
105 | """test that | |
|
106 | update_cell_prompt | |
|
107 | render_result | |
|
108 | ||
|
109 | are added to execute request | |
|
110 | """ | |
|
111 | ||
|
112 | 83 | d = self.fb.execute("10+10") |
|
113 | d.addCallback(self.checkCallbacks) | |
|
84 | d.addCallback(lambda r: self.assert_(self.fb.updateCalled and self.fb.renderResultCalled)) | |
|
85 | return d | |
|
114 | 86 | |
|
115 | def checkCallbacks(self, result): | |
|
116 | assert(self.fb.updateCalled) | |
|
117 | assert(self.fb.renderResultCalled) | |
|
118 | ||
|
119 | @skip("This test fails and lead to an unhandled error in a Deferred.") | |
|
120 | 87 | def test_error_callback_added_to_execute(self): |
|
121 |
""" |
|
|
88 | """Test that render_error called on execution error.""" | |
|
122 | 89 | |
|
123 | 90 | d = self.fb.execute("raise Exception()") |
|
124 | d.addCallback(self.checkRenderError) | |
|
125 | ||
|
126 | def checkRenderError(self, result): | |
|
127 | assert(self.fb.renderErrorCalled) | |
|
91 | d.addErrback(lambda f: self.assert_(self.fb.renderErrorCalled)) | |
|
92 | return d | |
|
128 | 93 | |
|
129 | 94 | def test_history_returns_expected_block(self): |
|
130 | """Make sure history browsing doesn't fail""" | |
|
95 | """Make sure history browsing doesn't fail.""" | |
|
131 | 96 | |
|
132 | 97 | blocks = ["a=1","a=2","a=3"] |
|
133 | for b in blocks: | |
|
134 |
|
|
|
135 | ||
|
136 | # d is now the deferred for the last executed block | |
|
137 |
d.addCallback(self.history |
|
|
138 | ||
|
139 | ||
|
140 | def historyTests(self, result, blocks): | |
|
141 | """historyTests""" | |
|
142 | ||
|
143 | assert(len(blocks) >= 3) | |
|
144 | assert(self.fb.get_history_previous("") == blocks[-2]) | |
|
145 | assert(self.fb.get_history_previous("") == blocks[-3]) | |
|
146 | assert(self.fb.get_history_next() == blocks[-2]) | |
|
147 | ||
|
148 | ||
|
149 | def test_history_returns_none_at_startup(self): | |
|
150 | """test_history_returns_none_at_startup""" | |
|
151 | ||
|
152 | assert(self.fb.get_history_previous("")==None) | |
|
153 | assert(self.fb.get_history_next()==None) | |
|
154 | ||
|
155 | ||
|
98 | d = self.fb.execute(blocks[0]) | |
|
99 | d.addCallback(lambda _: self.fb.execute(blocks[1])) | |
|
100 | d.addCallback(lambda _: self.fb.execute(blocks[2])) | |
|
101 | d.addCallback(lambda _: self.assert_(self.fb.get_history_previous("")==blocks[-2])) | |
|
102 | d.addCallback(lambda _: self.assert_(self.fb.get_history_previous("")==blocks[-3])) | |
|
103 | d.addCallback(lambda _: self.assert_(self.fb.get_history_next()==blocks[-2])) | |
|
104 | return d | |
|
105 | ||
|
106 | def test_history_returns_none_at_startup(self): | |
|
107 | self.assert_(self.fb.get_history_previous("")==None) | |
|
108 | self.assert_(self.fb.get_history_next()==None) | |
|
109 |
@@ -1,180 +1,252 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """ |
|
3 | 3 | Test process execution and IO redirection. |
|
4 | 4 | """ |
|
5 | 5 | |
|
6 | 6 | __docformat__ = "restructuredtext en" |
|
7 | 7 | |
|
8 | 8 | #------------------------------------------------------------------------------- |
|
9 | 9 | # Copyright (C) 2008 The IPython Development Team |
|
10 | 10 | # |
|
11 | 11 | # Distributed under the terms of the BSD License. The full license is |
|
12 | 12 | # in the file COPYING, distributed as part of this software. |
|
13 | 13 | #------------------------------------------------------------------------------- |
|
14 | 14 | |
|
15 | from copy import copy, deepcopy | |
|
15 | 16 | from cStringIO import StringIO |
|
16 | 17 | import string |
|
17 | 18 | |
|
18 | from IPython.ipapi import get as get_ipython0 | |
|
19 | from nose.tools import assert_equal | |
|
20 | ||
|
19 | 21 | from IPython.frontend.prefilterfrontend import PrefilterFrontEnd |
|
20 | from copy import deepcopy | |
|
22 | from IPython.ipapi import get as get_ipython0 | |
|
23 | from IPython.testing.plugin.ipdoctest import default_argv | |
|
24 | ||
|
25 | ||
|
26 | def safe_deepcopy(d): | |
|
27 | """ Deep copy every key of the given dict, when possible. Elsewhere | |
|
28 | do a copy. | |
|
29 | """ | |
|
30 | copied_d = dict() | |
|
31 | for key, value in d.iteritems(): | |
|
32 | try: | |
|
33 | copied_d[key] = deepcopy(value) | |
|
34 | except: | |
|
35 | try: | |
|
36 | copied_d[key] = copy(value) | |
|
37 | except: | |
|
38 | copied_d[key] = value | |
|
39 | return copied_d | |
|
40 | ||
|
21 | 41 | |
|
22 | 42 | class TestPrefilterFrontEnd(PrefilterFrontEnd): |
|
23 | 43 | |
|
24 | 44 | input_prompt_template = string.Template('') |
|
25 | 45 | output_prompt_template = string.Template('') |
|
26 | 46 | banner = '' |
|
27 | 47 | |
|
28 | 48 | def __init__(self): |
|
29 | ipython0 = get_ipython0().IP | |
|
30 | 49 | self.out = StringIO() |
|
31 |
PrefilterFrontEnd.__init__(self, |
|
|
32 | # Clean up the namespace for isolation between tests | |
|
33 | user_ns = self.ipython0.user_ns | |
|
34 | # We need to keep references to things so that they don't | |
|
35 | # get garbage collected (this stinks). | |
|
36 | self.shadow_ns = dict() | |
|
37 | for i in self.ipython0.magic_who_ls(): | |
|
38 | self.shadow_ns[i] = user_ns.pop(i) | |
|
50 | PrefilterFrontEnd.__init__(self,argv=default_argv()) | |
|
39 | 51 | # Some more code for isolation (yeah, crazy) |
|
40 | 52 | self._on_enter() |
|
41 | 53 | self.out.flush() |
|
42 | 54 | self.out.reset() |
|
43 | 55 | self.out.truncate() |
|
44 | 56 | |
|
45 | 57 | def write(self, string, *args, **kwargs): |
|
46 | 58 | self.out.write(string) |
|
47 | 59 | |
|
48 | 60 | def _on_enter(self): |
|
49 | 61 | self.input_buffer += '\n' |
|
50 | 62 | PrefilterFrontEnd._on_enter(self) |
|
51 | 63 | |
|
52 | 64 | |
|
53 | 65 | def isolate_ipython0(func): |
|
54 | 66 | """ Decorator to isolate execution that involves an iptyhon0. |
|
67 | ||
|
68 | Notes | |
|
69 | ----- | |
|
70 | ||
|
71 | Apply only to functions with no arguments. Nose skips functions | |
|
72 | with arguments. | |
|
55 | 73 | """ |
|
56 |
def my_func( |
|
|
57 |
ip |
|
|
58 | user_ns = deepcopy(ipython0.user_ns) | |
|
59 | global_ns = deepcopy(ipython0.global_ns) | |
|
74 | def my_func(): | |
|
75 | iplib = get_ipython0() | |
|
76 | if iplib is None: | |
|
77 | return func() | |
|
78 | ipython0 = iplib.IP | |
|
79 | global_ns = safe_deepcopy(ipython0.user_global_ns) | |
|
80 | user_ns = safe_deepcopy(ipython0.user_ns) | |
|
60 | 81 | try: |
|
61 |
func( |
|
|
82 | out = func() | |
|
62 | 83 | finally: |
|
63 | 84 | ipython0.user_ns = user_ns |
|
64 | ipython0.global_ns = global_ns | |
|
85 | ipython0.user_global_ns = global_ns | |
|
86 | # Undo the hack at creation of PrefilterFrontEnd | |
|
87 | from IPython import iplib | |
|
88 | iplib.InteractiveShell.isthreaded = False | |
|
89 | return out | |
|
65 | 90 | |
|
91 | my_func.__name__ = func.__name__ | |
|
66 | 92 | return my_func |
|
67 | 93 | |
|
68 | 94 | |
|
69 | 95 | @isolate_ipython0 |
|
70 | 96 | def test_execution(): |
|
71 | 97 | """ Test execution of a command. |
|
72 | 98 | """ |
|
73 | 99 | f = TestPrefilterFrontEnd() |
|
74 | 100 | f.input_buffer = 'print 1' |
|
75 | 101 | f._on_enter() |
|
76 | 102 | out_value = f.out.getvalue() |
|
77 |
assert |
|
|
103 | assert_equal(out_value, '1\n') | |
|
78 | 104 | |
|
79 | 105 | |
|
80 | 106 | @isolate_ipython0 |
|
81 | 107 | def test_multiline(): |
|
82 | 108 | """ Test execution of a multiline command. |
|
83 | 109 | """ |
|
84 | 110 | f = TestPrefilterFrontEnd() |
|
85 | 111 | f.input_buffer = 'if True:' |
|
86 | 112 | f._on_enter() |
|
87 | 113 | f.input_buffer += 'print 1' |
|
88 | 114 | f._on_enter() |
|
89 | 115 | out_value = f.out.getvalue() |
|
90 |
assert out_value |
|
|
116 | yield assert_equal, out_value, '' | |
|
91 | 117 | f._on_enter() |
|
92 | 118 | out_value = f.out.getvalue() |
|
93 |
assert out_value |
|
|
119 | yield assert_equal, out_value, '1\n' | |
|
94 | 120 | f = TestPrefilterFrontEnd() |
|
95 | 121 | f.input_buffer='(1 +' |
|
96 | 122 | f._on_enter() |
|
97 | 123 | f.input_buffer += '0)' |
|
98 | 124 | f._on_enter() |
|
99 | 125 | out_value = f.out.getvalue() |
|
100 |
assert out_value |
|
|
126 | yield assert_equal, out_value, '' | |
|
101 | 127 | f._on_enter() |
|
102 | 128 | out_value = f.out.getvalue() |
|
103 |
assert out_value |
|
|
129 | yield assert_equal, out_value, '1\n' | |
|
104 | 130 | |
|
105 | 131 | |
|
106 | 132 | @isolate_ipython0 |
|
107 | 133 | def test_capture(): |
|
108 | 134 | """ Test the capture of output in different channels. |
|
109 | 135 | """ |
|
110 | 136 | # Test on the OS-level stdout, stderr. |
|
111 | 137 | f = TestPrefilterFrontEnd() |
|
112 | 138 | f.input_buffer = \ |
|
113 | 139 | 'import os; out=os.fdopen(1, "w"); out.write("1") ; out.flush()' |
|
114 | 140 | f._on_enter() |
|
115 | 141 | out_value = f.out.getvalue() |
|
116 |
assert out_value |
|
|
142 | yield assert_equal, out_value, '1' | |
|
117 | 143 | f = TestPrefilterFrontEnd() |
|
118 | 144 | f.input_buffer = \ |
|
119 | 145 | 'import os; out=os.fdopen(2, "w"); out.write("1") ; out.flush()' |
|
120 | 146 | f._on_enter() |
|
121 | 147 | out_value = f.out.getvalue() |
|
122 |
assert out_value |
|
|
148 | yield assert_equal, out_value, '1' | |
|
123 | 149 | |
|
124 | 150 | |
|
125 | 151 | @isolate_ipython0 |
|
126 | 152 | def test_magic(): |
|
127 | 153 | """ Test the magic expansion and history. |
|
128 | 154 | |
|
129 | 155 | This test is fairly fragile and will break when magics change. |
|
130 | 156 | """ |
|
131 | 157 | f = TestPrefilterFrontEnd() |
|
158 | # Before checking the interactive namespace, make sure it's clear (it can | |
|
159 | # otherwise pick up things stored in the user's local db) | |
|
160 | f.input_buffer += '%reset -f' | |
|
161 | f._on_enter() | |
|
162 | f.complete_current_input() | |
|
163 | # Now, run the %who magic and check output | |
|
132 | 164 | f.input_buffer += '%who' |
|
133 | 165 | f._on_enter() |
|
134 | 166 | out_value = f.out.getvalue() |
|
135 |
assert |
|
|
167 | assert_equal(out_value, 'Interactive namespace is empty.\n') | |
|
136 | 168 | |
|
137 | 169 | |
|
138 | 170 | @isolate_ipython0 |
|
139 | 171 | def test_help(): |
|
140 | 172 | """ Test object inspection. |
|
141 | 173 | """ |
|
142 | 174 | f = TestPrefilterFrontEnd() |
|
143 | 175 | f.input_buffer += "def f():" |
|
144 | 176 | f._on_enter() |
|
145 | 177 | f.input_buffer += "'foobar'" |
|
146 | 178 | f._on_enter() |
|
147 | 179 | f.input_buffer += "pass" |
|
148 | 180 | f._on_enter() |
|
149 | 181 | f._on_enter() |
|
150 | 182 | f.input_buffer += "f?" |
|
151 | 183 | f._on_enter() |
|
152 | 184 | assert 'traceback' not in f.last_result |
|
153 | 185 | ## XXX: ipython doctest magic breaks this. I have no clue why |
|
154 | 186 | #out_value = f.out.getvalue() |
|
155 | 187 | #assert out_value.split()[-1] == 'foobar' |
|
156 | 188 | |
|
157 | 189 | |
|
158 | 190 | @isolate_ipython0 |
|
159 | def test_completion(): | |
|
160 | """ Test command-line completion. | |
|
191 | def test_completion_simple(): | |
|
192 | """ Test command-line completion on trivial examples. | |
|
161 | 193 | """ |
|
162 | 194 | f = TestPrefilterFrontEnd() |
|
163 | 195 | f.input_buffer = 'zzza = 1' |
|
164 | 196 | f._on_enter() |
|
165 | 197 | f.input_buffer = 'zzzb = 2' |
|
166 | 198 | f._on_enter() |
|
167 | 199 | f.input_buffer = 'zz' |
|
168 | 200 | f.complete_current_input() |
|
169 | 201 | out_value = f.out.getvalue() |
|
170 |
assert out_value |
|
|
171 |
assert f.input_buffer |
|
|
202 | yield assert_equal, out_value, '\nzzza zzzb ' | |
|
203 | yield assert_equal, f.input_buffer, 'zzz' | |
|
204 | ||
|
205 | ||
|
206 | @isolate_ipython0 | |
|
207 | def test_completion_parenthesis(): | |
|
208 | """ Test command-line completion when a parenthesis is open. | |
|
209 | """ | |
|
210 | f = TestPrefilterFrontEnd() | |
|
211 | f.input_buffer = 'zzza = 1' | |
|
212 | f._on_enter() | |
|
213 | f.input_buffer = 'zzzb = 2' | |
|
214 | f._on_enter() | |
|
215 | f.input_buffer = 'map(zz' | |
|
216 | f.complete_current_input() | |
|
217 | out_value = f.out.getvalue() | |
|
218 | yield assert_equal, out_value, '\nzzza zzzb ' | |
|
219 | yield assert_equal, f.input_buffer, 'map(zzz' | |
|
220 | ||
|
221 | ||
|
222 | @isolate_ipython0 | |
|
223 | def test_completion_indexing(): | |
|
224 | """ Test command-line completion when indexing on objects. | |
|
225 | """ | |
|
226 | f = TestPrefilterFrontEnd() | |
|
227 | f.input_buffer = 'a = [0]' | |
|
228 | f._on_enter() | |
|
229 | f.input_buffer = 'a[0].' | |
|
230 | f.complete_current_input() | |
|
231 | assert_equal(f.input_buffer, 'a[0].__') | |
|
232 | ||
|
233 | ||
|
234 | @isolate_ipython0 | |
|
235 | def test_completion_equal(): | |
|
236 | """ Test command-line completion when the delimiter is "=", not " ". | |
|
237 | """ | |
|
238 | f = TestPrefilterFrontEnd() | |
|
239 | f.input_buffer = 'a=1.' | |
|
240 | f.complete_current_input() | |
|
241 | assert_equal(f.input_buffer, 'a=1.__') | |
|
242 | ||
|
172 | 243 | |
|
173 | 244 | |
|
174 | 245 | if __name__ == '__main__': |
|
175 | 246 | test_magic() |
|
176 | 247 | test_help() |
|
177 | 248 | test_execution() |
|
178 | 249 | test_multiline() |
|
179 | 250 | test_capture() |
|
180 | test_completion() | |
|
251 | test_completion_simple() | |
|
252 | test_completion_complex() |
@@ -1,67 +1,67 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """ |
|
3 | 3 | Test process execution and IO redirection. |
|
4 | 4 | """ |
|
5 | 5 | |
|
6 | 6 | __docformat__ = "restructuredtext en" |
|
7 | 7 | |
|
8 |
#----------------------------------------------------------------------------- |
|
|
9 | # Copyright (C) 2008 The IPython Development Team | |
|
8 | #----------------------------------------------------------------------------- | |
|
9 | # Copyright (C) 2008-2009 The IPython Development Team | |
|
10 | 10 | # |
|
11 | 11 | # Distributed under the terms of the BSD License. The full license is |
|
12 | 12 | # in the file COPYING, distributed as part of this software. |
|
13 |
#----------------------------------------------------------------------------- |
|
|
13 | #----------------------------------------------------------------------------- | |
|
14 | 14 | |
|
15 | 15 | from cStringIO import StringIO |
|
16 | 16 | from time import sleep |
|
17 | 17 | import sys |
|
18 | 18 | |
|
19 |
from IPython.frontend. |
|
|
19 | from IPython.frontend.process import PipedProcess | |
|
20 | 20 | from IPython.testing import decorators as testdec |
|
21 | 21 | |
|
22 | 22 | |
|
23 | 23 | def test_capture_out(): |
|
24 | 24 | """ A simple test to see if we can execute a process and get the output. |
|
25 | 25 | """ |
|
26 | 26 | s = StringIO() |
|
27 | 27 | p = PipedProcess('echo 1', out_callback=s.write, ) |
|
28 | 28 | p.start() |
|
29 | 29 | p.join() |
|
30 | 30 | result = s.getvalue().rstrip() |
|
31 | 31 | assert result == '1' |
|
32 | 32 | |
|
33 | 33 | |
|
34 | 34 | def test_io(): |
|
35 | 35 | """ Checks that we can send characters on stdin to the process. |
|
36 | 36 | """ |
|
37 | 37 | s = StringIO() |
|
38 | 38 | p = PipedProcess(sys.executable + ' -c "a = raw_input(); print a"', |
|
39 | 39 | out_callback=s.write, ) |
|
40 | 40 | p.start() |
|
41 | 41 | test_string = '12345\n' |
|
42 | 42 | while not hasattr(p, 'process'): |
|
43 | 43 | sleep(0.1) |
|
44 | 44 | p.process.stdin.write(test_string) |
|
45 | 45 | p.join() |
|
46 | 46 | result = s.getvalue() |
|
47 | 47 | assert result == test_string |
|
48 | 48 | |
|
49 | 49 | |
|
50 | 50 | def test_kill(): |
|
51 | 51 | """ Check that we can kill a process, and its subprocess. |
|
52 | 52 | """ |
|
53 | 53 | s = StringIO() |
|
54 | 54 | p = PipedProcess(sys.executable + ' -c "a = raw_input();"', |
|
55 | 55 | out_callback=s.write, ) |
|
56 | 56 | p.start() |
|
57 | 57 | while not hasattr(p, 'process'): |
|
58 | 58 | sleep(0.1) |
|
59 | 59 | p.process.kill() |
|
60 | 60 | assert p.process.poll() is not None |
|
61 | 61 | |
|
62 | 62 | |
|
63 | 63 | if __name__ == '__main__': |
|
64 | 64 | test_capture_out() |
|
65 | 65 | test_io() |
|
66 | 66 | test_kill() |
|
67 | 67 |
@@ -1,436 +1,625 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """ |
|
3 | 3 | A Wx widget to act as a console and input commands. |
|
4 | 4 | |
|
5 | 5 | This widget deals with prompts and provides an edit buffer |
|
6 | 6 | restricted to after the last prompt. |
|
7 | 7 | """ |
|
8 | 8 | |
|
9 | 9 | __docformat__ = "restructuredtext en" |
|
10 | 10 | |
|
11 | 11 | #------------------------------------------------------------------------------- |
|
12 | 12 | # Copyright (C) 2008 The IPython Development Team |
|
13 | 13 | # |
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14 | 14 | # Distributed under the terms of the BSD License. The full license is |
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15 | 15 | # in the file COPYING, distributed as part of this software. |
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16 | 16 | #------------------------------------------------------------------------------- |
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17 | 17 | |
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18 | 18 | #------------------------------------------------------------------------------- |
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19 | 19 | # Imports |
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20 | 20 | #------------------------------------------------------------------------------- |
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21 | 21 | |
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22 | 22 | import wx |
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23 | 23 | import wx.stc as stc |
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24 | 24 | |
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25 | 25 | from wx.py import editwindow |
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26 | 26 | import time |
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27 | 27 | import sys |
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28 | import string | |
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29 | ||
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28 | 30 | LINESEP = '\n' |
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29 | 31 | if sys.platform == 'win32': |
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30 | 32 | LINESEP = '\n\r' |
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31 | 33 | |
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32 | 34 | import re |
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33 | 35 | |
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34 | 36 | # FIXME: Need to provide an API for non user-generated display on the |
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35 | 37 | # screen: this should not be editable by the user. |
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38 | #------------------------------------------------------------------------------- | |
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39 | # Constants | |
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40 | #------------------------------------------------------------------------------- | |
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41 | _COMPLETE_BUFFER_MARKER = 31 | |
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42 | _ERROR_MARKER = 30 | |
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43 | _INPUT_MARKER = 29 | |
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36 | 44 | |
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37 | 45 | _DEFAULT_SIZE = 10 |
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38 | 46 | if sys.platform == 'darwin': |
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39 | 47 | _DEFAULT_SIZE = 12 |
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40 | 48 | |
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41 | 49 | _DEFAULT_STYLE = { |
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42 | 'stdout' : 'fore:#0000FF', | |
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43 | 'stderr' : 'fore:#007f00', | |
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44 | 'trace' : 'fore:#FF0000', | |
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45 | ||
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50 | #background definition | |
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46 | 51 | 'default' : 'size:%d' % _DEFAULT_SIZE, |
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47 | 52 | 'bracegood' : 'fore:#00AA00,back:#000000,bold', |
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48 | 53 | 'bracebad' : 'fore:#FF0000,back:#000000,bold', |
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49 | 54 | |
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55 | # Edge column: a number of None | |
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56 | 'edge_column' : -1, | |
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57 | ||
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50 | 58 | # properties for the various Python lexer styles |
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51 | 59 | 'comment' : 'fore:#007F00', |
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52 | 60 | 'number' : 'fore:#007F7F', |
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53 | 61 | 'string' : 'fore:#7F007F,italic', |
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54 | 62 | 'char' : 'fore:#7F007F,italic', |
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55 | 63 | 'keyword' : 'fore:#00007F,bold', |
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56 | 64 | 'triple' : 'fore:#7F0000', |
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57 | 65 | 'tripledouble' : 'fore:#7F0000', |
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58 | 66 | 'class' : 'fore:#0000FF,bold,underline', |
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59 | 67 | 'def' : 'fore:#007F7F,bold', |
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60 | 'operator' : 'bold' | |
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68 | 'operator' : 'bold', | |
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69 | ||
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70 | # Default colors | |
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71 | 'trace' : '#FAFAF1', # Nice green | |
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72 | 'stdout' : '#FDFFD3', # Nice yellow | |
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73 | 'stderr' : '#FFF1F1', # Nice red | |
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74 | ||
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75 | # Default scintilla settings | |
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76 | 'antialiasing' : True, | |
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77 | 'carret_color' : 'BLACK', | |
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78 | 'background_color' :'WHITE', | |
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79 | ||
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80 | #prompt definition | |
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81 | 'prompt_in1' : \ | |
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82 | '\n\x01\x1b[0;34m\x02In [\x01\x1b[1;34m\x02$number\x01\x1b[0;34m\x02]: \x01\x1b[0m\x02', | |
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83 | ||
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84 | 'prompt_out': \ | |
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85 | '\x01\x1b[0;31m\x02Out[\x01\x1b[1;31m\x02$number\x01\x1b[0;31m\x02]: \x01\x1b[0m\x02', | |
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61 | 86 | } |
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62 | 87 | |
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63 | 88 | # new style numbers |
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64 | 89 | _STDOUT_STYLE = 15 |
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65 | 90 | _STDERR_STYLE = 16 |
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66 | 91 | _TRACE_STYLE = 17 |
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67 | 92 | |
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68 | 93 | |
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69 | 94 | # system colors |
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70 | 95 | #SYS_COLOUR_BACKGROUND = wx.SystemSettings.GetColour(wx.SYS_COLOUR_BACKGROUND) |
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71 | 96 | |
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97 | # Translation table from ANSI escape sequences to color. | |
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98 | ANSI_STYLES = {'0;30': [0, 'BLACK'], '0;31': [1, 'RED'], | |
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99 | '0;32': [2, 'GREEN'], '0;33': [3, 'BROWN'], | |
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100 | '0;34': [4, 'BLUE'], '0;35': [5, 'PURPLE'], | |
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101 | '0;36': [6, 'CYAN'], '0;37': [7, 'LIGHT GREY'], | |
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102 | '1;30': [8, 'DARK GREY'], '1;31': [9, 'RED'], | |
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103 | '1;32': [10, 'SEA GREEN'], '1;33': [11, 'YELLOW'], | |
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104 | '1;34': [12, 'LIGHT BLUE'], '1;35': | |
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105 | [13, 'MEDIUM VIOLET RED'], | |
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106 | '1;36': [14, 'LIGHT STEEL BLUE'], '1;37': [15, 'YELLOW']} | |
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107 | ||
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108 | # XXX: Maybe one day we should factor this code with ColorANSI. Right now | |
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109 | # ColorANSI is hard to reuse and makes our code more complex. | |
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110 | ||
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111 | #we define platform specific fonts | |
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112 | if wx.Platform == '__WXMSW__': | |
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113 | FACES = { 'times': 'Times New Roman', | |
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114 | 'mono' : 'Courier New', | |
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115 | 'helv' : 'Arial', | |
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116 | 'other': 'Comic Sans MS', | |
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117 | 'size' : 10, | |
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118 | 'size2': 8, | |
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119 | } | |
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120 | elif wx.Platform == '__WXMAC__': | |
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121 | FACES = { 'times': 'Times New Roman', | |
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122 | 'mono' : 'Monaco', | |
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123 | 'helv' : 'Arial', | |
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124 | 'other': 'Comic Sans MS', | |
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125 | 'size' : 10, | |
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126 | 'size2': 8, | |
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127 | } | |
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128 | else: | |
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129 | FACES = { 'times': 'Times', | |
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130 | 'mono' : 'Courier', | |
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131 | 'helv' : 'Helvetica', | |
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132 | 'other': 'new century schoolbook', | |
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133 | 'size' : 10, | |
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134 | 'size2': 8, | |
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135 | } | |
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136 | ||
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137 | ||
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72 | 138 | #------------------------------------------------------------------------------- |
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73 | 139 | # The console widget class |
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74 | 140 | #------------------------------------------------------------------------------- |
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75 | 141 | class ConsoleWidget(editwindow.EditWindow): |
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76 | 142 | """ Specialized styled text control view for console-like workflow. |
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77 | 143 | |
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78 | 144 | This widget is mainly interested in dealing with the prompt and |
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79 | 145 | keeping the cursor inside the editing line. |
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80 | 146 | """ |
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81 | 147 | |
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82 | 148 | # This is where the title captured from the ANSI escape sequences are |
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83 | 149 | # stored. |
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84 | 150 | title = 'Console' |
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85 | 151 | |
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152 | # Last prompt printed | |
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153 | last_prompt = '' | |
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154 | ||
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86 | 155 | # The buffer being edited. |
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87 | 156 | def _set_input_buffer(self, string): |
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88 | 157 | self.SetSelection(self.current_prompt_pos, self.GetLength()) |
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89 | 158 | self.ReplaceSelection(string) |
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90 | 159 | self.GotoPos(self.GetLength()) |
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91 | 160 | |
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92 | 161 | def _get_input_buffer(self): |
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93 | 162 | """ Returns the text in current edit buffer. |
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94 | 163 | """ |
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95 | 164 | input_buffer = self.GetTextRange(self.current_prompt_pos, |
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96 | 165 | self.GetLength()) |
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97 | 166 | input_buffer = input_buffer.replace(LINESEP, '\n') |
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98 | 167 | return input_buffer |
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99 | 168 | |
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100 | 169 | input_buffer = property(_get_input_buffer, _set_input_buffer) |
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101 | 170 | |
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102 | 171 | style = _DEFAULT_STYLE.copy() |
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103 | 172 | |
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104 | 173 | # Translation table from ANSI escape sequences to color. Override |
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105 | 174 | # this to specify your colors. |
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106 | ANSI_STYLES = {'0;30': [0, 'BLACK'], '0;31': [1, 'RED'], | |
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107 | '0;32': [2, 'GREEN'], '0;33': [3, 'BROWN'], | |
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108 | '0;34': [4, 'BLUE'], '0;35': [5, 'PURPLE'], | |
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109 | '0;36': [6, 'CYAN'], '0;37': [7, 'LIGHT GREY'], | |
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110 | '1;30': [8, 'DARK GREY'], '1;31': [9, 'RED'], | |
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111 | '1;32': [10, 'SEA GREEN'], '1;33': [11, 'YELLOW'], | |
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112 | '1;34': [12, 'LIGHT BLUE'], '1;35': | |
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113 | [13, 'MEDIUM VIOLET RED'], | |
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114 | '1;36': [14, 'LIGHT STEEL BLUE'], '1;37': [15, 'YELLOW']} | |
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115 | ||
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116 | # The color of the carret (call _apply_style() after setting) | |
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117 | carret_color = 'BLACK' | |
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175 | ANSI_STYLES = ANSI_STYLES.copy() | |
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118 | 176 | |
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177 | # Font faces | |
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178 | faces = FACES.copy() | |
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179 | ||
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119 | 180 | # Store the last time a refresh was done |
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120 | 181 | _last_refresh_time = 0 |
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121 | 182 | |
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122 | 183 | #-------------------------------------------------------------------------- |
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123 | 184 | # Public API |
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124 | 185 | #-------------------------------------------------------------------------- |
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125 | 186 | |
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126 | 187 | def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, |
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127 | 188 | size=wx.DefaultSize, style=wx.WANTS_CHARS, ): |
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128 | 189 | editwindow.EditWindow.__init__(self, parent, id, pos, size, style) |
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129 |
self. |
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190 | self.configure_scintilla() | |
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191 | # Track if 'enter' key as ever been processed | |
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192 | # This variable will only be reallowed until key goes up | |
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193 | self.enter_catched = False | |
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194 | self.current_prompt_pos = 0 | |
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130 | 195 | |
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131 | 196 | self.Bind(wx.EVT_KEY_DOWN, self._on_key_down) |
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132 | 197 | self.Bind(wx.EVT_KEY_UP, self._on_key_up) |
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133 | 198 | |
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134 | 199 | |
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135 | 200 | def write(self, text, refresh=True): |
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136 | 201 | """ Write given text to buffer, while translating the ansi escape |
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137 | 202 | sequences. |
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138 | 203 | """ |
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139 | 204 | # XXX: do not put print statements to sys.stdout/sys.stderr in |
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140 | 205 | # this method, the print statements will call this method, as |
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141 | 206 | # you will end up with an infinit loop |
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142 | 207 | title = self.title_pat.split(text) |
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143 | 208 | if len(title)>1: |
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144 | 209 | self.title = title[-2] |
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145 | 210 | |
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146 | 211 | text = self.title_pat.sub('', text) |
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147 | 212 | segments = self.color_pat.split(text) |
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148 | 213 | segment = segments.pop(0) |
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149 | 214 | self.GotoPos(self.GetLength()) |
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150 | 215 | self.StartStyling(self.GetLength(), 0xFF) |
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151 | 216 | try: |
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152 | 217 | self.AppendText(segment) |
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153 | 218 | except UnicodeDecodeError: |
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154 | 219 | # XXX: Do I really want to skip the exception? |
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155 | 220 | pass |
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156 | 221 | |
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157 | 222 | if segments: |
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158 | 223 | for ansi_tag, text in zip(segments[::2], segments[1::2]): |
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159 | 224 | self.StartStyling(self.GetLength(), 0xFF) |
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160 | 225 | try: |
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161 | 226 | self.AppendText(text) |
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162 | 227 | except UnicodeDecodeError: |
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163 | 228 | # XXX: Do I really want to skip the exception? |
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164 | 229 | pass |
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165 | 230 | |
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166 | 231 | if ansi_tag not in self.ANSI_STYLES: |
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167 | 232 | style = 0 |
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168 | 233 | else: |
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169 | 234 | style = self.ANSI_STYLES[ansi_tag][0] |
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170 | 235 | |
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171 | 236 | self.SetStyling(len(text), style) |
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172 | 237 | |
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173 | 238 | self.GotoPos(self.GetLength()) |
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174 | 239 | if refresh: |
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175 | 240 | current_time = time.time() |
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176 | 241 | if current_time - self._last_refresh_time > 0.03: |
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177 | 242 | if sys.platform == 'win32': |
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178 | 243 | wx.SafeYield() |
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179 | 244 | else: |
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180 | 245 | wx.Yield() |
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181 | 246 | # self.ProcessEvent(wx.PaintEvent()) |
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182 | 247 | self._last_refresh_time = current_time |
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183 | 248 | |
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184 | 249 | |
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185 | 250 | def new_prompt(self, prompt): |
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186 | 251 | """ Prints a prompt at start of line, and move the start of the |
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187 | 252 | current block there. |
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188 | 253 | |
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189 | 254 | The prompt can be given with ascii escape sequences. |
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190 | 255 | """ |
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191 | 256 | self.write(prompt, refresh=False) |
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192 | 257 | # now we update our cursor giving end of prompt |
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193 | 258 | self.current_prompt_pos = self.GetLength() |
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194 | 259 | self.current_prompt_line = self.GetCurrentLine() |
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195 | 260 | self.EnsureCaretVisible() |
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261 | self.last_prompt = prompt | |
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196 | 262 | |
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197 | 263 | |
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264 | def continuation_prompt(self): | |
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265 | """ Returns the current continuation prompt. | |
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266 | We need to implement this method here to deal with the | |
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267 | ascii escape sequences cleaning up. | |
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268 | """ | |
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269 | # ASCII-less prompt | |
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270 | ascii_less = ''.join(self.color_pat.split(self.last_prompt)[2::2]) | |
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271 | return "."*(len(ascii_less)-2) + ': ' | |
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272 | ||
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273 | ||
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198 | 274 | def scroll_to_bottom(self): |
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199 | 275 | maxrange = self.GetScrollRange(wx.VERTICAL) |
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200 | 276 | self.ScrollLines(maxrange) |
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201 | 277 | |
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202 | 278 | |
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203 | 279 | def pop_completion(self, possibilities, offset=0): |
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204 | 280 | """ Pops up an autocompletion menu. Offset is the offset |
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205 | 281 | in characters of the position at which the menu should |
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206 | 282 | appear, relativ to the cursor. |
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207 | 283 | """ |
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208 | 284 | self.AutoCompSetIgnoreCase(False) |
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209 | 285 | self.AutoCompSetAutoHide(False) |
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210 | 286 | self.AutoCompSetMaxHeight(len(possibilities)) |
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211 | 287 | self.AutoCompShow(offset, " ".join(possibilities)) |
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212 | 288 | |
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213 | 289 | |
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214 | 290 | def get_line_width(self): |
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215 | 291 | """ Return the width of the line in characters. |
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216 | 292 | """ |
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217 | 293 | return self.GetSize()[0]/self.GetCharWidth() |
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218 | 294 | |
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219 | #-------------------------------------------------------------------------- | |
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220 | # EditWindow API | |
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221 | #-------------------------------------------------------------------------- | |
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222 | 295 | |
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223 | def OnUpdateUI(self, event): | |
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224 | """ Override the OnUpdateUI of the EditWindow class, to prevent | |
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225 | syntax highlighting both for faster redraw, and for more | |
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226 | consistent look and feel. | |
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296 | def configure_scintilla(self): | |
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297 | """ Set up all the styling option of the embedded scintilla | |
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298 | widget. | |
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227 | 299 | """ |
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300 | p = self.style.copy() | |
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301 | ||
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302 | # Marker for complete buffer. | |
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303 | self.MarkerDefine(_COMPLETE_BUFFER_MARKER, stc.STC_MARK_BACKGROUND, | |
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304 | background=p['trace']) | |
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228 | 305 | |
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229 | #-------------------------------------------------------------------------- | |
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230 | # Private API | |
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231 | #-------------------------------------------------------------------------- | |
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232 | ||
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233 | def _apply_style(self): | |
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234 | """ Applies the colors for the different text elements and the | |
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235 | carret. | |
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236 | """ | |
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237 | self.SetCaretForeground(self.carret_color) | |
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238 | ||
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239 | #self.StyleClearAll() | |
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240 | self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT, | |
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241 | "fore:#FF0000,back:#0000FF,bold") | |
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242 | self.StyleSetSpec(stc.STC_STYLE_BRACEBAD, | |
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243 | "fore:#000000,back:#FF0000,bold") | |
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244 | ||
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245 | for style in self.ANSI_STYLES.values(): | |
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246 | self.StyleSetSpec(style[0], "bold,fore:%s" % style[1]) | |
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306 | # Marker for current input buffer. | |
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307 | self.MarkerDefine(_INPUT_MARKER, stc.STC_MARK_BACKGROUND, | |
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308 | background=p['stdout']) | |
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309 | # Marker for tracebacks. | |
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310 | self.MarkerDefine(_ERROR_MARKER, stc.STC_MARK_BACKGROUND, | |
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311 | background=p['stderr']) | |
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247 | 312 | |
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248 | ||
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249 | def _configure_scintilla(self): | |
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250 | 313 | self.SetEOLMode(stc.STC_EOL_LF) |
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251 | 314 | |
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252 | 315 | # Ctrl"+" or Ctrl "-" can be used to zoomin/zoomout the text inside |
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253 | 316 | # the widget |
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254 | 317 | self.CmdKeyAssign(ord('+'), stc.STC_SCMOD_CTRL, stc.STC_CMD_ZOOMIN) |
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255 | 318 | self.CmdKeyAssign(ord('-'), stc.STC_SCMOD_CTRL, stc.STC_CMD_ZOOMOUT) |
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256 | 319 | # Also allow Ctrl Shift "=" for poor non US keyboard users. |
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257 | 320 | self.CmdKeyAssign(ord('='), stc.STC_SCMOD_CTRL|stc.STC_SCMOD_SHIFT, |
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258 | 321 | stc.STC_CMD_ZOOMIN) |
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259 | 322 | |
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260 | 323 | # Keys: we need to clear some of the keys the that don't play |
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261 | 324 | # well with a console. |
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262 | 325 | self.CmdKeyClear(ord('D'), stc.STC_SCMOD_CTRL) |
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263 | 326 | self.CmdKeyClear(ord('L'), stc.STC_SCMOD_CTRL) |
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264 | 327 | self.CmdKeyClear(ord('T'), stc.STC_SCMOD_CTRL) |
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265 | 328 | self.CmdKeyClear(ord('A'), stc.STC_SCMOD_CTRL) |
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266 | 329 | |
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267 | 330 | self.SetEOLMode(stc.STC_EOL_CRLF) |
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268 | 331 | self.SetWrapMode(stc.STC_WRAP_CHAR) |
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269 | 332 | self.SetWrapMode(stc.STC_WRAP_WORD) |
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270 | 333 | self.SetBufferedDraw(True) |
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271 | self.SetUseAntiAliasing(True) | |
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334 | ||
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335 | self.SetUseAntiAliasing(p['antialiasing']) | |
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336 | ||
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272 | 337 | self.SetLayoutCache(stc.STC_CACHE_PAGE) |
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273 | 338 | self.SetUndoCollection(False) |
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274 | 339 | self.SetUseTabs(True) |
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275 | 340 | self.SetIndent(4) |
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276 | 341 | self.SetTabWidth(4) |
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277 | 342 | |
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278 | 343 | # we don't want scintilla's autocompletion to choose |
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279 | 344 | # automaticaly out of a single choice list, as we pop it up |
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280 | 345 | # automaticaly |
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281 | 346 | self.AutoCompSetChooseSingle(False) |
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282 | 347 | self.AutoCompSetMaxHeight(10) |
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283 | 348 | # XXX: this doesn't seem to have an effect. |
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284 | 349 | self.AutoCompSetFillUps('\n') |
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285 | 350 | |
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286 | 351 | self.SetMargins(3, 3) #text is moved away from border with 3px |
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287 | 352 | # Suppressing Scintilla margins |
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288 | 353 | self.SetMarginWidth(0, 0) |
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289 | 354 | self.SetMarginWidth(1, 0) |
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290 | 355 | self.SetMarginWidth(2, 0) |
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291 | 356 | |
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292 | self._apply_style() | |
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293 | ||
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294 | 357 | # Xterm escape sequences |
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295 | 358 | self.color_pat = re.compile('\x01?\x1b\[(.*?)m\x02?') |
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296 | 359 | self.title_pat = re.compile('\x1b]0;(.*?)\x07') |
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297 | 360 | |
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298 | #self.SetEdgeMode(stc.STC_EDGE_LINE) | |
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299 | #self.SetEdgeColumn(80) | |
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300 | ||
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301 | 361 | # styles |
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302 | p = self.style | |
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303 | self.StyleSetSpec(stc.STC_STYLE_DEFAULT, p['default']) | |
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362 | ||
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363 | self.SetCaretForeground(p['carret_color']) | |
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364 | ||
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365 | background_color = p['background_color'] | |
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366 | ||
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367 | if 'default' in p: | |
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368 | if 'back' not in p['default']: | |
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369 | p['default'] += ',back:%s' % background_color | |
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370 | if 'size' not in p['default']: | |
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371 | p['default'] += ',size:%s' % self.faces['size'] | |
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372 | if 'face' not in p['default']: | |
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373 | p['default'] += ',face:%s' % self.faces['mono'] | |
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374 | ||
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375 | self.StyleSetSpec(stc.STC_STYLE_DEFAULT, p['default']) | |
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376 | else: | |
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377 | self.StyleSetSpec(stc.STC_STYLE_DEFAULT, | |
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378 | "fore:%s,back:%s,size:%d,face:%s" | |
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379 | % (self.ANSI_STYLES['0;30'][1], | |
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380 | background_color, | |
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381 | self.faces['size'], self.faces['mono'])) | |
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382 | ||
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304 | 383 | self.StyleClearAll() |
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384 | ||
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385 | # XXX: two lines below are usefull if not using the lexer | |
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386 | #for style in self.ANSI_STYLES.values(): | |
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387 | # self.StyleSetSpec(style[0], "bold,fore:%s" % style[1]) | |
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388 | ||
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389 | # prompt definition | |
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390 | self.prompt_in1 = p['prompt_in1'] | |
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391 | self.prompt_out = p['prompt_out'] | |
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392 | ||
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393 | self.output_prompt_template = string.Template(self.prompt_out) | |
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394 | self.input_prompt_template = string.Template(self.prompt_in1) | |
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395 | ||
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305 | 396 | self.StyleSetSpec(_STDOUT_STYLE, p['stdout']) |
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306 | 397 | self.StyleSetSpec(_STDERR_STYLE, p['stderr']) |
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307 | 398 | self.StyleSetSpec(_TRACE_STYLE, p['trace']) |
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308 | ||
|
309 | 399 | self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT, p['bracegood']) |
|
310 | 400 | self.StyleSetSpec(stc.STC_STYLE_BRACEBAD, p['bracebad']) |
|
311 | 401 | self.StyleSetSpec(stc.STC_P_COMMENTLINE, p['comment']) |
|
312 | 402 | self.StyleSetSpec(stc.STC_P_NUMBER, p['number']) |
|
313 | 403 | self.StyleSetSpec(stc.STC_P_STRING, p['string']) |
|
314 | 404 | self.StyleSetSpec(stc.STC_P_CHARACTER, p['char']) |
|
315 | 405 | self.StyleSetSpec(stc.STC_P_WORD, p['keyword']) |
|
316 | 406 | self.StyleSetSpec(stc.STC_P_WORD2, p['keyword']) |
|
317 | 407 | self.StyleSetSpec(stc.STC_P_TRIPLE, p['triple']) |
|
318 | 408 | self.StyleSetSpec(stc.STC_P_TRIPLEDOUBLE, p['tripledouble']) |
|
319 | 409 | self.StyleSetSpec(stc.STC_P_CLASSNAME, p['class']) |
|
320 | 410 | self.StyleSetSpec(stc.STC_P_DEFNAME, p['def']) |
|
321 | 411 | self.StyleSetSpec(stc.STC_P_OPERATOR, p['operator']) |
|
322 | 412 | self.StyleSetSpec(stc.STC_P_COMMENTBLOCK, p['comment']) |
|
323 | 413 | |
|
414 | edge_column = p['edge_column'] | |
|
415 | if edge_column is not None and edge_column > 0: | |
|
416 | #we add a vertical line to console widget | |
|
417 | self.SetEdgeMode(stc.STC_EDGE_LINE) | |
|
418 | self.SetEdgeColumn(edge_column) | |
|
419 | ||
|
420 | ||
|
421 | #-------------------------------------------------------------------------- | |
|
422 | # EditWindow API | |
|
423 | #-------------------------------------------------------------------------- | |
|
424 | ||
|
425 | def OnUpdateUI(self, event): | |
|
426 | """ Override the OnUpdateUI of the EditWindow class, to prevent | |
|
427 | syntax highlighting both for faster redraw, and for more | |
|
428 | consistent look and feel. | |
|
429 | """ | |
|
430 | ||
|
431 | ||
|
432 | #-------------------------------------------------------------------------- | |
|
433 | # Private API | |
|
434 | #-------------------------------------------------------------------------- | |
|
435 | ||
|
324 | 436 | def _on_key_down(self, event, skip=True): |
|
325 | 437 | """ Key press callback used for correcting behavior for |
|
326 | 438 | console-like interfaces: the cursor is constraint to be after |
|
327 | 439 | the last prompt. |
|
328 | 440 | |
|
329 | 441 | Return True if event as been catched. |
|
330 | 442 | """ |
|
331 | 443 | catched = True |
|
444 | # XXX: Would the right way to do this be to have a | |
|
445 | # dictionary at the instance level associating keys with | |
|
446 | # callbacks? How would we deal with inheritance? And Do the | |
|
447 | # different callbacks share local variables? | |
|
448 | ||
|
332 | 449 | # Intercept some specific keys. |
|
333 | 450 | if event.KeyCode == ord('L') and event.ControlDown() : |
|
334 | 451 | self.scroll_to_bottom() |
|
335 | 452 | elif event.KeyCode == ord('K') and event.ControlDown() : |
|
336 | 453 | self.input_buffer = '' |
|
337 | 454 | elif event.KeyCode == ord('A') and event.ControlDown() : |
|
338 | 455 | self.GotoPos(self.GetLength()) |
|
339 | 456 | self.SetSelectionStart(self.current_prompt_pos) |
|
340 | 457 | self.SetSelectionEnd(self.GetCurrentPos()) |
|
341 | 458 | catched = True |
|
342 | 459 | elif event.KeyCode == ord('E') and event.ControlDown() : |
|
343 | 460 | self.GotoPos(self.GetLength()) |
|
344 | 461 | catched = True |
|
345 | 462 | elif event.KeyCode == wx.WXK_PAGEUP: |
|
346 | 463 | self.ScrollPages(-1) |
|
347 | 464 | elif event.KeyCode == wx.WXK_PAGEDOWN: |
|
348 | 465 | self.ScrollPages(1) |
|
466 | elif event.KeyCode == wx.WXK_HOME: | |
|
467 | self.GotoPos(self.GetLength()) | |
|
468 | elif event.KeyCode == wx.WXK_END: | |
|
469 | self.GotoPos(self.GetLength()) | |
|
349 | 470 | elif event.KeyCode == wx.WXK_UP and event.ShiftDown(): |
|
350 | 471 | self.ScrollLines(-1) |
|
351 | 472 | elif event.KeyCode == wx.WXK_DOWN and event.ShiftDown(): |
|
352 | 473 | self.ScrollLines(1) |
|
353 | 474 | else: |
|
354 | 475 | catched = False |
|
355 | 476 | |
|
356 | 477 | if self.AutoCompActive(): |
|
357 | 478 | event.Skip() |
|
358 | 479 | else: |
|
359 | 480 | if event.KeyCode in (13, wx.WXK_NUMPAD_ENTER) and \ |
|
360 |
event.Modifiers in (wx.MOD_NONE, wx.MOD_WIN |
|
|
481 | event.Modifiers in (wx.MOD_NONE, wx.MOD_WIN, | |
|
482 | wx.MOD_SHIFT): | |
|
361 | 483 | catched = True |
|
362 |
self. |
|
|
363 | self.write('\n', refresh=False) | |
|
364 | # Under windows scintilla seems to be doing funny stuff to the | |
|
365 | # line returns here, but the getter for input_buffer filters | |
|
366 | # this out. | |
|
367 | if sys.platform == 'win32': | |
|
368 | self.input_buffer = self.input_buffer | |
|
369 | self._on_enter() | |
|
484 | if not self.enter_catched: | |
|
485 | self.CallTipCancel() | |
|
486 | if event.Modifiers == wx.MOD_SHIFT: | |
|
487 | # Try to force execution | |
|
488 | self.GotoPos(self.GetLength()) | |
|
489 | self.write('\n' + self.continuation_prompt(), | |
|
490 | refresh=False) | |
|
491 | self._on_enter() | |
|
492 | else: | |
|
493 | self._on_enter() | |
|
494 | self.enter_catched = True | |
|
370 | 495 | |
|
371 | 496 | elif event.KeyCode == wx.WXK_HOME: |
|
372 | 497 | if event.Modifiers in (wx.MOD_NONE, wx.MOD_WIN): |
|
373 | 498 | self.GotoPos(self.current_prompt_pos) |
|
374 | 499 | catched = True |
|
375 | 500 | |
|
376 | 501 | elif event.Modifiers == wx.MOD_SHIFT: |
|
377 | 502 | # FIXME: This behavior is not ideal: if the selection |
|
378 | 503 | # is already started, it will jump. |
|
379 | 504 | self.SetSelectionStart(self.current_prompt_pos) |
|
380 | 505 | self.SetSelectionEnd(self.GetCurrentPos()) |
|
381 | 506 | catched = True |
|
382 | 507 | |
|
383 | 508 | elif event.KeyCode == wx.WXK_UP: |
|
384 | 509 | if self.GetCurrentLine() > self.current_prompt_line: |
|
385 | 510 | if self.GetCurrentLine() == self.current_prompt_line + 1 \ |
|
386 | 511 | and self.GetColumn(self.GetCurrentPos()) < \ |
|
387 | 512 | self.GetColumn(self.current_prompt_pos): |
|
388 | 513 | self.GotoPos(self.current_prompt_pos) |
|
389 | 514 | else: |
|
390 | 515 | event.Skip() |
|
391 | 516 | catched = True |
|
392 | 517 | |
|
393 | 518 | elif event.KeyCode in (wx.WXK_LEFT, wx.WXK_BACK): |
|
394 | if self.GetCurrentPos() > self.current_prompt_pos: | |
|
519 | if not self._keep_cursor_in_buffer(self.GetCurrentPos() - 1): | |
|
520 | event.Skip() | |
|
521 | catched = True | |
|
522 | ||
|
523 | elif event.KeyCode == wx.WXK_RIGHT: | |
|
524 | if not self._keep_cursor_in_buffer(self.GetCurrentPos() + 1): | |
|
525 | event.Skip() | |
|
526 | catched = True | |
|
527 | ||
|
528 | ||
|
529 | elif event.KeyCode == wx.WXK_DELETE: | |
|
530 | if not self._keep_cursor_in_buffer(self.GetCurrentPos() - 1): | |
|
395 | 531 | event.Skip() |
|
396 | 532 | catched = True |
|
397 | 533 | |
|
398 | 534 | if skip and not catched: |
|
399 | 535 | # Put the cursor back in the edit region |
|
400 | if self.GetCurrentPos() < self.current_prompt_pos: | |
|
401 | self.GotoPos(self.current_prompt_pos) | |
|
402 | else: | |
|
403 | event.Skip() | |
|
536 | if not self._keep_cursor_in_buffer(): | |
|
537 | if not (self.GetCurrentPos() == self.GetLength() | |
|
538 | and event.KeyCode == wx.WXK_DELETE): | |
|
539 | event.Skip() | |
|
540 | catched = True | |
|
404 | 541 | |
|
405 | 542 | return catched |
|
406 | 543 | |
|
407 | 544 | |
|
408 | 545 | def _on_key_up(self, event, skip=True): |
|
409 | 546 | """ If cursor is outside the editing region, put it back. |
|
410 | 547 | """ |
|
411 |
|
|
|
412 | if self.GetCurrentPos() < self.current_prompt_pos: | |
|
413 | self.GotoPos(self.current_prompt_pos) | |
|
548 | if skip: | |
|
549 | event.Skip() | |
|
550 | self._keep_cursor_in_buffer() | |
|
551 | ||
|
552 | ||
|
553 | # XXX: I need to avoid the problem of having an empty glass; | |
|
554 | def _keep_cursor_in_buffer(self, pos=None): | |
|
555 | """ Checks if the cursor is where it is allowed to be. If not, | |
|
556 | put it back. | |
|
414 | 557 |
|
|
558 | Returns | |
|
559 | ------- | |
|
560 | cursor_moved: Boolean | |
|
561 | whether or not the cursor was moved by this routine. | |
|
562 | ||
|
563 | Notes | |
|
564 | ------ | |
|
565 | WARNING: This does proper checks only for horizontal | |
|
566 | movements. | |
|
567 | """ | |
|
568 | if pos is None: | |
|
569 | current_pos = self.GetCurrentPos() | |
|
570 | else: | |
|
571 | current_pos = pos | |
|
572 | if current_pos < self.current_prompt_pos: | |
|
573 | self.GotoPos(self.current_prompt_pos) | |
|
574 | return True | |
|
575 | line_num = self.LineFromPosition(current_pos) | |
|
576 | if not current_pos > self.GetLength(): | |
|
577 | line_pos = self.GetColumn(current_pos) | |
|
578 | else: | |
|
579 | line_pos = self.GetColumn(self.GetLength()) | |
|
580 | line = self.GetLine(line_num) | |
|
581 | # Jump the continuation prompt | |
|
582 | continuation_prompt = self.continuation_prompt() | |
|
583 | if ( line.startswith(continuation_prompt) | |
|
584 | and line_pos < len(continuation_prompt)): | |
|
585 | if line_pos < 2: | |
|
586 | # We are at the beginning of the line, trying to move | |
|
587 | # forward: jump forward. | |
|
588 | self.GotoPos(current_pos + 1 + | |
|
589 | len(continuation_prompt) - line_pos) | |
|
590 | else: | |
|
591 | # Jump back up | |
|
592 | self.GotoPos(self.GetLineEndPosition(line_num-1)) | |
|
593 | return True | |
|
594 | elif ( current_pos > self.GetLineEndPosition(line_num) | |
|
595 | and not current_pos == self.GetLength()): | |
|
596 | # Jump to next line | |
|
597 | self.GotoPos(current_pos + 1 + | |
|
598 | len(continuation_prompt)) | |
|
599 | return True | |
|
600 | ||
|
601 | # We re-allow enter event processing | |
|
602 | self.enter_catched = False | |
|
603 | return False | |
|
415 | 604 | |
|
416 | 605 | |
|
417 | 606 | if __name__ == '__main__': |
|
418 | 607 | # Some simple code to test the console widget. |
|
419 | 608 | class MainWindow(wx.Frame): |
|
420 | 609 | def __init__(self, parent, id, title): |
|
421 | wx.Frame.__init__(self, parent, id, title, size=(300,250)) | |
|
610 | wx.Frame.__init__(self, parent, id, title, size=(300, 250)) | |
|
422 | 611 | self._sizer = wx.BoxSizer(wx.VERTICAL) |
|
423 | 612 | self.console_widget = ConsoleWidget(self) |
|
424 | 613 | self._sizer.Add(self.console_widget, 1, wx.EXPAND) |
|
425 | 614 | self.SetSizer(self._sizer) |
|
426 | 615 | self.SetAutoLayout(1) |
|
427 | 616 | self.Show(True) |
|
428 | 617 | |
|
429 | 618 | app = wx.PySimpleApp() |
|
430 | 619 | w = MainWindow(None, wx.ID_ANY, 'ConsoleWidget') |
|
431 | 620 | w.SetSize((780, 460)) |
|
432 | 621 | w.Show() |
|
433 | 622 | |
|
434 | 623 | app.MainLoop() |
|
435 | 624 | |
|
436 | 625 |
@@ -1,110 +1,119 b'' | |||
|
1 | 1 | """ |
|
2 | 2 | Entry point for a simple application giving a graphical frontend to |
|
3 | 3 | ipython. |
|
4 | 4 | """ |
|
5 | 5 | |
|
6 | 6 | try: |
|
7 | 7 | import wx |
|
8 | 8 | except ImportError, e: |
|
9 | 9 | e.message = """%s |
|
10 | 10 | ________________________________________________________________________________ |
|
11 | 11 | You need wxPython to run this application. |
|
12 | 12 | """ % e.message |
|
13 | 13 | e.args = (e.message, ) + e.args[1:] |
|
14 | 14 | raise e |
|
15 | 15 | |
|
16 | 16 | from wx_frontend import WxController |
|
17 | 17 | import __builtin__ |
|
18 | 18 | |
|
19 | 19 | |
|
20 | 20 | class IPythonXController(WxController): |
|
21 | 21 | """ Sub class of WxController that adds some application-specific |
|
22 | 22 | bindings. |
|
23 | 23 | """ |
|
24 | 24 | |
|
25 | 25 | debug = False |
|
26 | 26 | |
|
27 | 27 | def __init__(self, *args, **kwargs): |
|
28 | 28 | WxController.__init__(self, *args, **kwargs) |
|
29 | 29 | self.ipython0.ask_exit = self.do_exit |
|
30 | 30 | # Scroll to top |
|
31 | 31 | maxrange = self.GetScrollRange(wx.VERTICAL) |
|
32 | 32 | self.ScrollLines(-maxrange) |
|
33 | 33 | |
|
34 | 34 | |
|
35 | 35 | def _on_key_down(self, event, skip=True): |
|
36 | 36 | # Intercept Ctrl-D to quit |
|
37 | 37 | if event.KeyCode == ord('D') and event.ControlDown() and \ |
|
38 | 38 | self.input_buffer == '' and \ |
|
39 | 39 | self._input_state == 'readline': |
|
40 | 40 | wx.CallAfter(self.ask_exit) |
|
41 | 41 | else: |
|
42 | 42 | WxController._on_key_down(self, event, skip=skip) |
|
43 | 43 | |
|
44 | 44 | |
|
45 | 45 | def ask_exit(self): |
|
46 | 46 | """ Ask the user whether to exit. |
|
47 | 47 | """ |
|
48 | 48 | self._input_state = 'subprocess' |
|
49 | 49 | self.write('\n', refresh=False) |
|
50 | 50 | self.capture_output() |
|
51 | 51 | self.ipython0.shell.exit() |
|
52 | 52 | self.release_output() |
|
53 | 53 | if not self.ipython0.exit_now: |
|
54 | 54 | wx.CallAfter(self.new_prompt, |
|
55 | 55 | self.input_prompt_template.substitute( |
|
56 | 56 | number=self.last_result['number'] + 1)) |
|
57 | 57 | else: |
|
58 | 58 | wx.CallAfter(wx.GetApp().Exit) |
|
59 | 59 | self.write('Exiting ...', refresh=False) |
|
60 | 60 | |
|
61 | 61 | |
|
62 | 62 | def do_exit(self): |
|
63 | 63 | """ Exits the interpreter, kills the windows. |
|
64 | 64 | """ |
|
65 | 65 | WxController.do_exit(self) |
|
66 | 66 | self.release_output() |
|
67 | 67 | wx.CallAfter(wx.Exit) |
|
68 | 68 | |
|
69 | 69 | |
|
70 | 70 | |
|
71 | 71 | class IPythonX(wx.Frame): |
|
72 | 72 | """ Main frame of the IPythonX app. |
|
73 | 73 | """ |
|
74 | 74 | |
|
75 | 75 | def __init__(self, parent, id, title, debug=False): |
|
76 | 76 | wx.Frame.__init__(self, parent, id, title, size=(300,250)) |
|
77 | 77 | self._sizer = wx.BoxSizer(wx.VERTICAL) |
|
78 | 78 | self.shell = IPythonXController(self, debug=debug) |
|
79 | 79 | self._sizer.Add(self.shell, 1, wx.EXPAND) |
|
80 | 80 | self.SetSizer(self._sizer) |
|
81 | 81 | self.SetAutoLayout(1) |
|
82 | 82 | self.Show(True) |
|
83 | wx.EVT_CLOSE(self, self.on_close) | |
|
84 | ||
|
85 | ||
|
86 | def on_close(self, event): | |
|
87 | """ Called on closing the windows. | |
|
88 | ||
|
89 | Stops the event loop, to close all the child windows. | |
|
90 | """ | |
|
91 | wx.CallAfter(wx.Exit) | |
|
83 | 92 | |
|
84 | 93 | |
|
85 | 94 | def main(): |
|
86 | 95 | from optparse import OptionParser |
|
87 | 96 | usage = """usage: %prog [options] |
|
88 | 97 | |
|
89 | 98 | Simple graphical frontend to IPython, using WxWidgets.""" |
|
90 | 99 | parser = OptionParser(usage=usage) |
|
91 | 100 | parser.add_option("-d", "--debug", |
|
92 | 101 | action="store_true", dest="debug", default=False, |
|
93 | 102 | help="Enable debug message for the wx frontend.") |
|
94 | 103 | |
|
95 | 104 | options, args = parser.parse_args() |
|
96 | 105 | |
|
97 | 106 | # Clear the options, to avoid having the ipython0 instance complain |
|
98 | 107 | import sys |
|
99 | 108 | sys.argv = sys.argv[:1] |
|
100 | 109 | |
|
101 | 110 | app = wx.PySimpleApp() |
|
102 | 111 | frame = IPythonX(None, wx.ID_ANY, 'IPythonX', debug=options.debug) |
|
103 | 112 | frame.shell.SetFocus() |
|
104 | 113 | frame.shell.app = app |
|
105 | 114 | frame.SetSize((680, 460)) |
|
106 | 115 | |
|
107 | 116 | app.MainLoop() |
|
108 | 117 | |
|
109 | 118 | if __name__ == '__main__': |
|
110 | 119 | main() |
@@ -1,526 +1,601 b'' | |||
|
1 | 1 | # encoding: utf-8 -*- test-case-name: |
|
2 | 2 | # FIXME: Need to add tests. |
|
3 | 3 | # ipython1.frontend.wx.tests.test_wx_frontend -*- |
|
4 | 4 | |
|
5 | 5 | """Classes to provide a Wx frontend to the |
|
6 | 6 | IPython.kernel.core.interpreter. |
|
7 | 7 | |
|
8 | 8 | This class inherits from ConsoleWidget, that provides a console-like |
|
9 | 9 | widget to provide a text-rendering widget suitable for a terminal. |
|
10 | 10 | """ |
|
11 | 11 | |
|
12 | 12 | __docformat__ = "restructuredtext en" |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Copyright (C) 2008 The IPython Development Team |
|
16 | 16 | # |
|
17 | 17 | # Distributed under the terms of the BSD License. The full license is in |
|
18 | 18 | # the file COPYING, distributed as part of this software. |
|
19 | 19 | #------------------------------------------------------------------------------- |
|
20 | 20 | |
|
21 | 21 | #------------------------------------------------------------------------------- |
|
22 | 22 | # Imports |
|
23 | 23 | #------------------------------------------------------------------------------- |
|
24 | 24 | |
|
25 | 25 | # Major library imports |
|
26 | 26 | import re |
|
27 | 27 | import __builtin__ |
|
28 | from time import sleep | |
|
29 | 28 | import sys |
|
30 | 29 | from threading import Lock |
|
31 | import string | |
|
32 | 30 | |
|
33 | 31 | import wx |
|
34 | 32 | from wx import stc |
|
35 | 33 | |
|
36 | 34 | # Ipython-specific imports. |
|
37 |
from IPython.frontend. |
|
|
38 | from console_widget import ConsoleWidget | |
|
35 | from IPython.frontend.process import PipedProcess | |
|
36 | from console_widget import ConsoleWidget, _COMPLETE_BUFFER_MARKER, \ | |
|
37 | _ERROR_MARKER, _INPUT_MARKER | |
|
39 | 38 | from IPython.frontend.prefilterfrontend import PrefilterFrontEnd |
|
40 | 39 | |
|
41 | 40 | #------------------------------------------------------------------------------- |
|
42 | # Constants | |
|
43 | #------------------------------------------------------------------------------- | |
|
44 | ||
|
45 | _COMPLETE_BUFFER_BG = '#FAFAF1' # Nice green | |
|
46 | _INPUT_BUFFER_BG = '#FDFFD3' # Nice yellow | |
|
47 | _ERROR_BG = '#FFF1F1' # Nice red | |
|
48 | ||
|
49 | _COMPLETE_BUFFER_MARKER = 31 | |
|
50 | _ERROR_MARKER = 30 | |
|
51 | _INPUT_MARKER = 29 | |
|
52 | ||
|
53 | prompt_in1 = \ | |
|
54 | '\n\x01\x1b[0;34m\x02In [\x01\x1b[1;34m\x02$number\x01\x1b[0;34m\x02]: \x01\x1b[0m\x02' | |
|
55 | ||
|
56 | prompt_out = \ | |
|
57 | '\x01\x1b[0;31m\x02Out[\x01\x1b[1;31m\x02$number\x01\x1b[0;31m\x02]: \x01\x1b[0m\x02' | |
|
58 | ||
|
59 | #------------------------------------------------------------------------------- | |
|
60 | 41 | # Classes to implement the Wx frontend |
|
61 | 42 | #------------------------------------------------------------------------------- |
|
62 | 43 | class WxController(ConsoleWidget, PrefilterFrontEnd): |
|
63 | 44 | """Classes to provide a Wx frontend to the |
|
64 | 45 | IPython.kernel.core.interpreter. |
|
65 | 46 | |
|
66 | 47 | This class inherits from ConsoleWidget, that provides a console-like |
|
67 | 48 | widget to provide a text-rendering widget suitable for a terminal. |
|
68 | 49 | """ |
|
69 | ||
|
70 | output_prompt_template = string.Template(prompt_out) | |
|
71 | ||
|
72 | input_prompt_template = string.Template(prompt_in1) | |
|
73 | ||
|
50 | ||
|
74 | 51 | # Print debug info on what is happening to the console. |
|
75 | 52 | debug = False |
|
76 | 53 | |
|
77 | 54 | # The title of the terminal, as captured through the ANSI escape |
|
78 | 55 | # sequences. |
|
79 | 56 | def _set_title(self, title): |
|
80 | 57 | return self.Parent.SetTitle(title) |
|
81 | 58 | |
|
82 | 59 | def _get_title(self): |
|
83 | 60 | return self.Parent.GetTitle() |
|
84 | 61 | |
|
85 | 62 | title = property(_get_title, _set_title) |
|
86 | 63 | |
|
87 | 64 | |
|
88 | 65 | # The buffer being edited. |
|
89 | 66 | # We are duplicating the definition here because of multiple |
|
90 | 67 | # inheritence |
|
91 | 68 | def _set_input_buffer(self, string): |
|
92 | 69 | ConsoleWidget._set_input_buffer(self, string) |
|
93 | 70 | self._colorize_input_buffer() |
|
94 | 71 | |
|
95 | 72 | def _get_input_buffer(self): |
|
96 | 73 | """ Returns the text in current edit buffer. |
|
97 | 74 | """ |
|
98 | 75 | return ConsoleWidget._get_input_buffer(self) |
|
99 | 76 | |
|
100 | 77 | input_buffer = property(_get_input_buffer, _set_input_buffer) |
|
101 | 78 | |
|
102 | 79 | |
|
103 | 80 | #-------------------------------------------------------------------------- |
|
104 | 81 | # Private Attributes |
|
105 | 82 | #-------------------------------------------------------------------------- |
|
106 | 83 | |
|
107 | 84 | # A flag governing the behavior of the input. Can be: |
|
108 | 85 | # |
|
109 | 86 | # 'readline' for readline-like behavior with a prompt |
|
110 | 87 | # and an edit buffer. |
|
111 | 88 | # 'raw_input' similar to readline, but triggered by a raw-input |
|
112 | 89 | # call. Can be used by subclasses to act differently. |
|
113 | 90 | # 'subprocess' for sending the raw input directly to a |
|
114 | 91 | # subprocess. |
|
115 | 92 | # 'buffering' for buffering of the input, that will be used |
|
116 | 93 | # when the input state switches back to another state. |
|
117 | 94 | _input_state = 'readline' |
|
118 | 95 | |
|
119 | 96 | # Attribute to store reference to the pipes of a subprocess, if we |
|
120 | 97 | # are running any. |
|
121 | 98 | _running_process = False |
|
122 | 99 | |
|
123 | 100 | # A queue for writing fast streams to the screen without flooding the |
|
124 | 101 | # event loop |
|
125 | 102 | _out_buffer = [] |
|
126 | 103 | |
|
127 | 104 | # A lock to lock the _out_buffer to make sure we don't empty it |
|
128 | 105 | # while it is being swapped |
|
129 | 106 | _out_buffer_lock = Lock() |
|
130 | 107 | |
|
131 | 108 | # The different line markers used to higlight the prompts. |
|
132 | 109 | _markers = dict() |
|
133 | 110 | |
|
134 | 111 | #-------------------------------------------------------------------------- |
|
135 | 112 | # Public API |
|
136 | 113 | #-------------------------------------------------------------------------- |
|
137 | 114 | |
|
138 | 115 | def __init__(self, parent, id=wx.ID_ANY, pos=wx.DefaultPosition, |
|
139 | 116 | size=wx.DefaultSize, |
|
140 | 117 | style=wx.CLIP_CHILDREN|wx.WANTS_CHARS, |
|
118 | styledef=None, | |
|
141 | 119 | *args, **kwds): |
|
142 | 120 | """ Create Shell instance. |
|
121 | ||
|
122 | Parameters | |
|
123 | ----------- | |
|
124 | styledef : dict, optional | |
|
125 | styledef is the dictionary of options used to define the | |
|
126 | style. | |
|
143 | 127 | """ |
|
128 | if styledef is not None: | |
|
129 | self.style = styledef | |
|
144 | 130 | ConsoleWidget.__init__(self, parent, id, pos, size, style) |
|
145 | 131 | PrefilterFrontEnd.__init__(self, **kwds) |
|
146 | 132 | |
|
147 | 133 | # Stick in our own raw_input: |
|
148 | 134 | self.ipython0.raw_input = self.raw_input |
|
149 | 135 | |
|
150 | # Marker for complete buffer. | |
|
151 | self.MarkerDefine(_COMPLETE_BUFFER_MARKER, stc.STC_MARK_BACKGROUND, | |
|
152 | background=_COMPLETE_BUFFER_BG) | |
|
153 | # Marker for current input buffer. | |
|
154 | self.MarkerDefine(_INPUT_MARKER, stc.STC_MARK_BACKGROUND, | |
|
155 | background=_INPUT_BUFFER_BG) | |
|
156 | # Marker for tracebacks. | |
|
157 | self.MarkerDefine(_ERROR_MARKER, stc.STC_MARK_BACKGROUND, | |
|
158 | background=_ERROR_BG) | |
|
159 | ||
|
160 | 136 | # A time for flushing the write buffer |
|
161 | 137 | BUFFER_FLUSH_TIMER_ID = 100 |
|
162 | 138 | self._buffer_flush_timer = wx.Timer(self, BUFFER_FLUSH_TIMER_ID) |
|
163 | 139 | wx.EVT_TIMER(self, BUFFER_FLUSH_TIMER_ID, self._buffer_flush) |
|
164 | 140 | |
|
165 | 141 | if 'debug' in kwds: |
|
166 | 142 | self.debug = kwds['debug'] |
|
167 | 143 | kwds.pop('debug') |
|
168 | 144 | |
|
169 | 145 | # Inject self in namespace, for debug |
|
170 | 146 | if self.debug: |
|
171 | 147 | self.shell.user_ns['self'] = self |
|
172 | 148 | # Inject our own raw_input in namespace |
|
173 | 149 | self.shell.user_ns['raw_input'] = self.raw_input |
|
174 | ||
|
175 | ||
|
150 | ||
|
176 | 151 | def raw_input(self, prompt=''): |
|
177 | 152 | """ A replacement from python's raw_input. |
|
178 | 153 | """ |
|
179 | 154 | self.new_prompt(prompt) |
|
180 | 155 | self._input_state = 'raw_input' |
|
181 | 156 | if hasattr(self, '_cursor'): |
|
182 | 157 | del self._cursor |
|
183 | 158 | self.SetCursor(wx.StockCursor(wx.CURSOR_CROSS)) |
|
184 | 159 | self.__old_on_enter = self._on_enter |
|
185 | 160 | event_loop = wx.EventLoop() |
|
186 | 161 | def my_on_enter(): |
|
187 | 162 | event_loop.Exit() |
|
188 | 163 | self._on_enter = my_on_enter |
|
189 | 164 | # XXX: Running a separate event_loop. Ugly. |
|
190 | 165 | event_loop.Run() |
|
191 | 166 | self._on_enter = self.__old_on_enter |
|
192 | 167 | self._input_state = 'buffering' |
|
193 | 168 | self._cursor = wx.BusyCursor() |
|
194 | 169 | return self.input_buffer.rstrip('\n') |
|
195 | 170 | |
|
196 | 171 | |
|
197 | 172 | def system_call(self, command_string): |
|
198 | 173 | self._input_state = 'subprocess' |
|
199 | 174 | event_loop = wx.EventLoop() |
|
200 | 175 | def _end_system_call(): |
|
201 | 176 | self._input_state = 'buffering' |
|
202 | 177 | self._running_process = False |
|
203 | 178 | event_loop.Exit() |
|
204 | 179 | |
|
205 | 180 | self._running_process = PipedProcess(command_string, |
|
206 | 181 | out_callback=self.buffered_write, |
|
207 | 182 | end_callback = _end_system_call) |
|
208 | 183 | self._running_process.start() |
|
209 | 184 | # XXX: Running a separate event_loop. Ugly. |
|
210 | 185 | event_loop.Run() |
|
211 | 186 | # Be sure to flush the buffer. |
|
212 | 187 | self._buffer_flush(event=None) |
|
213 | 188 | |
|
214 | 189 | |
|
215 | 190 | def do_calltip(self): |
|
216 | 191 | """ Analyse current and displays useful calltip for it. |
|
217 | 192 | """ |
|
218 | 193 | if self.debug: |
|
219 | 194 | print >>sys.__stdout__, "do_calltip" |
|
220 | 195 | separators = re.compile('[\s\{\}\[\]\(\)\= ,:]') |
|
221 | 196 | symbol = self.input_buffer |
|
222 | 197 | symbol_string = separators.split(symbol)[-1] |
|
223 | 198 | base_symbol_string = symbol_string.split('.')[0] |
|
224 | 199 | if base_symbol_string in self.shell.user_ns: |
|
225 | 200 | symbol = self.shell.user_ns[base_symbol_string] |
|
226 | 201 | elif base_symbol_string in self.shell.user_global_ns: |
|
227 | 202 | symbol = self.shell.user_global_ns[base_symbol_string] |
|
228 | 203 | elif base_symbol_string in __builtin__.__dict__: |
|
229 | 204 | symbol = __builtin__.__dict__[base_symbol_string] |
|
230 | 205 | else: |
|
231 | 206 | return False |
|
232 | 207 | try: |
|
233 | 208 | for name in symbol_string.split('.')[1:] + ['__doc__']: |
|
234 | 209 | symbol = getattr(symbol, name) |
|
235 | 210 | self.AutoCompCancel() |
|
236 | 211 | # Check that the symbol can indeed be converted to a string: |
|
237 | 212 | symbol += '' |
|
238 | 213 | wx.CallAfter(self.CallTipShow, self.GetCurrentPos(), symbol) |
|
239 | 214 | except: |
|
240 | 215 | # The retrieve symbol couldn't be converted to a string |
|
241 | 216 | pass |
|
242 | 217 | |
|
243 | 218 | |
|
244 | 219 | def _popup_completion(self, create=False): |
|
245 | 220 | """ Updates the popup completion menu if it exists. If create is |
|
246 | 221 | true, open the menu. |
|
247 | 222 | """ |
|
248 | 223 | if self.debug: |
|
249 | 224 | print >>sys.__stdout__, "_popup_completion" |
|
250 | 225 | line = self.input_buffer |
|
251 | 226 | if (self.AutoCompActive() and line and not line[-1] == '.') \ |
|
252 | 227 | or create==True: |
|
253 | 228 | suggestion, completions = self.complete(line) |
|
254 | offset=0 | |
|
255 | 229 | if completions: |
|
256 | complete_sep = re.compile('[\s\{\}\[\]\(\)\= ,:]') | |
|
257 | residual = complete_sep.split(line)[-1] | |
|
258 | offset = len(residual) | |
|
230 | offset = len(self._get_completion_text(line)) | |
|
259 | 231 | self.pop_completion(completions, offset=offset) |
|
260 | 232 | if self.debug: |
|
261 | 233 | print >>sys.__stdout__, completions |
|
262 | 234 | |
|
263 | 235 | |
|
264 | 236 | def buffered_write(self, text): |
|
265 | 237 | """ A write method for streams, that caches the stream in order |
|
266 | 238 | to avoid flooding the event loop. |
|
267 | 239 | |
|
268 | 240 | This can be called outside of the main loop, in separate |
|
269 | 241 | threads. |
|
270 | 242 | """ |
|
271 | 243 | self._out_buffer_lock.acquire() |
|
272 | 244 | self._out_buffer.append(text) |
|
273 | 245 | self._out_buffer_lock.release() |
|
274 | 246 | if not self._buffer_flush_timer.IsRunning(): |
|
275 | 247 | wx.CallAfter(self._buffer_flush_timer.Start, |
|
276 | 248 | milliseconds=100, oneShot=True) |
|
277 | 249 | |
|
278 | 250 | |
|
251 | def clear_screen(self): | |
|
252 | """ Empty completely the widget. | |
|
253 | """ | |
|
254 | self.ClearAll() | |
|
255 | self.new_prompt(self.input_prompt_template.substitute( | |
|
256 | number=(self.last_result['number'] + 1))) | |
|
257 | ||
|
258 | ||
|
279 | 259 | #-------------------------------------------------------------------------- |
|
280 | 260 | # LineFrontEnd interface |
|
281 | 261 | #-------------------------------------------------------------------------- |
|
282 | 262 | |
|
283 | 263 | def execute(self, python_string, raw_string=None): |
|
284 | 264 | self._input_state = 'buffering' |
|
285 | 265 | self.CallTipCancel() |
|
286 | 266 | self._cursor = wx.BusyCursor() |
|
287 | 267 | if raw_string is None: |
|
288 | 268 | raw_string = python_string |
|
289 | 269 | end_line = self.current_prompt_line \ |
|
290 | 270 | + max(1, len(raw_string.split('\n'))-1) |
|
291 | 271 | for i in range(self.current_prompt_line, end_line): |
|
292 | 272 | if i in self._markers: |
|
293 | 273 | self.MarkerDeleteHandle(self._markers[i]) |
|
294 | 274 | self._markers[i] = self.MarkerAdd(i, _COMPLETE_BUFFER_MARKER) |
|
295 | 275 | # Use a callafter to update the display robustly under windows |
|
296 | 276 | def callback(): |
|
297 | 277 | self.GotoPos(self.GetLength()) |
|
298 | 278 | PrefilterFrontEnd.execute(self, python_string, |
|
299 | 279 | raw_string=raw_string) |
|
300 | 280 | wx.CallAfter(callback) |
|
301 | 281 | |
|
282 | ||
|
283 | def execute_command(self, command, hidden=False): | |
|
284 | """ Execute a command, not only in the model, but also in the | |
|
285 | view. | |
|
286 | """ | |
|
287 | # XXX: This method needs to be integrated in the base fronted | |
|
288 | # interface | |
|
289 | if hidden: | |
|
290 | return self.shell.execute(command) | |
|
291 | else: | |
|
292 | # XXX: we are not storing the input buffer previous to the | |
|
293 | # execution, as this forces us to run the execution | |
|
294 | # input_buffer a yield, which is not good. | |
|
295 | ##current_buffer = self.shell.control.input_buffer | |
|
296 | command = command.rstrip() | |
|
297 | if len(command.split('\n')) > 1: | |
|
298 | # The input command is several lines long, we need to | |
|
299 | # force the execution to happen | |
|
300 | command += '\n' | |
|
301 | cleaned_command = self.prefilter_input(command) | |
|
302 | self.input_buffer = command | |
|
303 | # Do not use wx.Yield() (aka GUI.process_events()) to avoid | |
|
304 | # recursive yields. | |
|
305 | self.ProcessEvent(wx.PaintEvent()) | |
|
306 | self.write('\n') | |
|
307 | if not self.is_complete(cleaned_command + '\n'): | |
|
308 | self._colorize_input_buffer() | |
|
309 | self.render_error('Incomplete or invalid input') | |
|
310 | self.new_prompt(self.input_prompt_template.substitute( | |
|
311 | number=(self.last_result['number'] + 1))) | |
|
312 | return False | |
|
313 | self._on_enter() | |
|
314 | return True | |
|
315 | ||
|
316 | ||
|
302 | 317 | def save_output_hooks(self): |
|
303 | 318 | self.__old_raw_input = __builtin__.raw_input |
|
304 | 319 | PrefilterFrontEnd.save_output_hooks(self) |
|
305 | 320 | |
|
306 | 321 | def capture_output(self): |
|
307 | 322 | self.SetLexer(stc.STC_LEX_NULL) |
|
308 | 323 | PrefilterFrontEnd.capture_output(self) |
|
309 | 324 | __builtin__.raw_input = self.raw_input |
|
310 | 325 | |
|
311 | 326 | |
|
312 | 327 | def release_output(self): |
|
313 | 328 | __builtin__.raw_input = self.__old_raw_input |
|
314 | 329 | PrefilterFrontEnd.release_output(self) |
|
315 | 330 | self.SetLexer(stc.STC_LEX_PYTHON) |
|
316 | 331 | |
|
317 | 332 | |
|
318 | 333 | def after_execute(self): |
|
319 | 334 | PrefilterFrontEnd.after_execute(self) |
|
320 | 335 | # Clear the wait cursor |
|
321 | 336 | if hasattr(self, '_cursor'): |
|
322 | 337 | del self._cursor |
|
323 | 338 | self.SetCursor(wx.StockCursor(wx.CURSOR_CHAR)) |
|
324 | 339 | |
|
325 | 340 | |
|
326 | 341 | def show_traceback(self): |
|
327 | 342 | start_line = self.GetCurrentLine() |
|
328 | 343 | PrefilterFrontEnd.show_traceback(self) |
|
329 | 344 | self.ProcessEvent(wx.PaintEvent()) |
|
330 | 345 | #wx.Yield() |
|
331 | 346 | for i in range(start_line, self.GetCurrentLine()): |
|
332 | 347 | self._markers[i] = self.MarkerAdd(i, _ERROR_MARKER) |
|
333 | 348 | |
|
334 | 349 | |
|
335 | 350 | #-------------------------------------------------------------------------- |
|
336 | 351 | # FrontEndBase interface |
|
337 | 352 | #-------------------------------------------------------------------------- |
|
338 | 353 | |
|
339 | 354 | def render_error(self, e): |
|
340 | 355 | start_line = self.GetCurrentLine() |
|
341 | 356 | self.write('\n' + e + '\n') |
|
342 | 357 | for i in range(start_line, self.GetCurrentLine()): |
|
343 | 358 | self._markers[i] = self.MarkerAdd(i, _ERROR_MARKER) |
|
344 | 359 | |
|
345 | 360 | |
|
346 | 361 | #-------------------------------------------------------------------------- |
|
347 | 362 | # ConsoleWidget interface |
|
348 | 363 | #-------------------------------------------------------------------------- |
|
349 | 364 | |
|
350 | 365 | def new_prompt(self, prompt): |
|
351 | 366 | """ Display a new prompt, and start a new input buffer. |
|
352 | 367 | """ |
|
353 | 368 | self._input_state = 'readline' |
|
354 | 369 | ConsoleWidget.new_prompt(self, prompt) |
|
355 | 370 | i = self.current_prompt_line |
|
356 | 371 | self._markers[i] = self.MarkerAdd(i, _INPUT_MARKER) |
|
357 | 372 | |
|
358 | 373 | |
|
374 | def continuation_prompt(self, *args, **kwargs): | |
|
375 | # Avoid multiple inheritence, be explicit about which | |
|
376 | # parent method class gets called | |
|
377 | return ConsoleWidget.continuation_prompt(self, *args, **kwargs) | |
|
378 | ||
|
379 | ||
|
359 | 380 | def write(self, *args, **kwargs): |
|
360 | 381 | # Avoid multiple inheritence, be explicit about which |
|
361 | 382 | # parent method class gets called |
|
362 | ConsoleWidget.write(self, *args, **kwargs) | |
|
383 | return ConsoleWidget.write(self, *args, **kwargs) | |
|
363 | 384 | |
|
364 | 385 | |
|
365 | 386 | def _on_key_down(self, event, skip=True): |
|
366 | 387 | """ Capture the character events, let the parent |
|
367 | 388 | widget handle them, and put our logic afterward. |
|
368 | 389 | """ |
|
369 | 390 | # FIXME: This method needs to be broken down in smaller ones. |
|
370 |
current_line_num |
|
|
391 | current_line_num = self.GetCurrentLine() | |
|
371 | 392 | if event.KeyCode in (ord('c'), ord('C')) and event.ControlDown(): |
|
372 | 393 | # Capture Control-C |
|
373 | 394 | if self._input_state == 'subprocess': |
|
374 | 395 | if self.debug: |
|
375 | 396 | print >>sys.__stderr__, 'Killing running process' |
|
376 | 397 | if hasattr(self._running_process, 'process'): |
|
377 | 398 | self._running_process.process.kill() |
|
378 | 399 | elif self._input_state == 'buffering': |
|
379 | 400 | if self.debug: |
|
380 | 401 | print >>sys.__stderr__, 'Raising KeyboardInterrupt' |
|
381 | 402 | raise KeyboardInterrupt |
|
382 | 403 | # XXX: We need to make really sure we |
|
383 | 404 | # get back to a prompt. |
|
384 | 405 | elif self._input_state == 'subprocess' and ( |
|
385 | 406 | ( event.KeyCode<256 and |
|
386 | 407 | not event.ControlDown() ) |
|
387 | 408 | or |
|
388 | 409 | ( event.KeyCode in (ord('d'), ord('D')) and |
|
389 | 410 | event.ControlDown())): |
|
390 | 411 | # We are running a process, we redirect keys. |
|
391 | 412 | ConsoleWidget._on_key_down(self, event, skip=skip) |
|
392 | 413 | char = chr(event.KeyCode) |
|
393 | 414 | # Deal with some inconsistency in wx keycodes: |
|
394 | 415 | if char == '\r': |
|
395 | 416 | char = '\n' |
|
396 | 417 | elif not event.ShiftDown(): |
|
397 | 418 | char = char.lower() |
|
398 | 419 | if event.ControlDown() and event.KeyCode in (ord('d'), ord('D')): |
|
399 | 420 | char = '\04' |
|
400 | 421 | self._running_process.process.stdin.write(char) |
|
401 | 422 | self._running_process.process.stdin.flush() |
|
402 | 423 | elif event.KeyCode in (ord('('), 57, 53): |
|
403 | 424 | # Calltips |
|
404 | 425 | event.Skip() |
|
405 | 426 | self.do_calltip() |
|
406 | 427 | elif self.AutoCompActive() and not event.KeyCode == ord('\t'): |
|
407 | 428 | event.Skip() |
|
408 | 429 | if event.KeyCode in (wx.WXK_BACK, wx.WXK_DELETE): |
|
409 | 430 | wx.CallAfter(self._popup_completion, create=True) |
|
410 | 431 | elif not event.KeyCode in (wx.WXK_UP, wx.WXK_DOWN, wx.WXK_LEFT, |
|
411 | 432 | wx.WXK_RIGHT, wx.WXK_ESCAPE): |
|
412 | 433 | wx.CallAfter(self._popup_completion) |
|
413 | 434 | else: |
|
414 | 435 | # Up history |
|
415 | 436 | if event.KeyCode == wx.WXK_UP and ( |
|
416 |
( current_line_num |
|
|
437 | ( current_line_num == self.current_prompt_line and | |
|
417 | 438 | event.Modifiers in (wx.MOD_NONE, wx.MOD_WIN) ) |
|
418 | 439 | or event.ControlDown() ): |
|
419 | 440 | new_buffer = self.get_history_previous( |
|
420 | 441 | self.input_buffer) |
|
421 | 442 | if new_buffer is not None: |
|
422 | 443 | self.input_buffer = new_buffer |
|
423 | 444 | if self.GetCurrentLine() > self.current_prompt_line: |
|
424 | 445 | # Go to first line, for seemless history up. |
|
425 | 446 | self.GotoPos(self.current_prompt_pos) |
|
426 | 447 | # Down history |
|
427 | 448 | elif event.KeyCode == wx.WXK_DOWN and ( |
|
428 |
( current_line_num |
|
|
449 | ( current_line_num == self.LineCount -1 and | |
|
429 | 450 | event.Modifiers in (wx.MOD_NONE, wx.MOD_WIN) ) |
|
430 | 451 | or event.ControlDown() ): |
|
431 | 452 | new_buffer = self.get_history_next() |
|
432 | 453 | if new_buffer is not None: |
|
433 | 454 | self.input_buffer = new_buffer |
|
434 | 455 | # Tab-completion |
|
435 | 456 | elif event.KeyCode == ord('\t'): |
|
436 |
current_line, current_line_num |
|
|
457 | current_line, current_line_num = self.CurLine | |
|
437 | 458 | if not re.match(r'^\s*$', current_line): |
|
438 | 459 | self.complete_current_input() |
|
439 | 460 | if self.AutoCompActive(): |
|
440 | 461 | wx.CallAfter(self._popup_completion, create=True) |
|
441 | 462 | else: |
|
442 | 463 | event.Skip() |
|
464 | elif event.KeyCode == wx.WXK_BACK: | |
|
465 | # If characters where erased, check if we have to | |
|
466 | # remove a line. | |
|
467 | # XXX: What about DEL? | |
|
468 | # FIXME: This logics should be in ConsoleWidget, as it is | |
|
469 | # independant of IPython | |
|
470 | current_line, _ = self.CurLine | |
|
471 | current_pos = self.GetCurrentPos() | |
|
472 | current_line_num = self.LineFromPosition(current_pos) | |
|
473 | current_col = self.GetColumn(current_pos) | |
|
474 | len_prompt = len(self.continuation_prompt()) | |
|
475 | if ( current_line.startswith(self.continuation_prompt()) | |
|
476 | and current_col == len_prompt): | |
|
477 | new_lines = [] | |
|
478 | for line_num, line in enumerate( | |
|
479 | self.input_buffer.split('\n')): | |
|
480 | if (line_num + self.current_prompt_line == | |
|
481 | current_line_num): | |
|
482 | new_lines.append(line[len_prompt:]) | |
|
483 | else: | |
|
484 | new_lines.append('\n'+line) | |
|
485 | # The first character is '\n', due to the above | |
|
486 | # code: | |
|
487 | self.input_buffer = ''.join(new_lines)[1:] | |
|
488 | self.GotoPos(current_pos - 1 - len_prompt) | |
|
489 | else: | |
|
490 | ConsoleWidget._on_key_down(self, event, skip=skip) | |
|
443 | 491 | else: |
|
444 | 492 | ConsoleWidget._on_key_down(self, event, skip=skip) |
|
493 | ||
|
445 | 494 | |
|
446 | 495 | |
|
447 | 496 | def _on_key_up(self, event, skip=True): |
|
448 | 497 | """ Called when any key is released. |
|
449 | 498 | """ |
|
450 | 499 | if event.KeyCode in (59, ord('.')): |
|
451 | 500 | # Intercepting '.' |
|
452 | 501 | event.Skip() |
|
453 | 502 | wx.CallAfter(self._popup_completion, create=True) |
|
454 | 503 | else: |
|
455 | 504 | ConsoleWidget._on_key_up(self, event, skip=skip) |
|
505 | # Make sure the continuation_prompts are always followed by a | |
|
506 | # whitespace | |
|
507 | new_lines = [] | |
|
508 | if self._input_state == 'readline': | |
|
509 | position = self.GetCurrentPos() | |
|
510 | continuation_prompt = self.continuation_prompt()[:-1] | |
|
511 | for line in self.input_buffer.split('\n'): | |
|
512 | if not line == continuation_prompt: | |
|
513 | new_lines.append(line) | |
|
514 | self.input_buffer = '\n'.join(new_lines) | |
|
515 | self.GotoPos(position) | |
|
456 | 516 | |
|
457 | 517 | |
|
458 | 518 | def _on_enter(self): |
|
459 | 519 | """ Called on return key down, in readline input_state. |
|
460 | 520 | """ |
|
521 | last_line_num = self.LineFromPosition(self.GetLength()) | |
|
522 | current_line_num = self.LineFromPosition(self.GetCurrentPos()) | |
|
523 | new_line_pos = (last_line_num - current_line_num) | |
|
461 | 524 | if self.debug: |
|
462 | 525 | print >>sys.__stdout__, repr(self.input_buffer) |
|
463 | PrefilterFrontEnd._on_enter(self) | |
|
526 | self.write('\n', refresh=False) | |
|
527 | # Under windows scintilla seems to be doing funny | |
|
528 | # stuff to the line returns here, but the getter for | |
|
529 | # input_buffer filters this out. | |
|
530 | if sys.platform == 'win32': | |
|
531 | self.input_buffer = self.input_buffer | |
|
532 | old_prompt_num = self.current_prompt_pos | |
|
533 | has_executed = PrefilterFrontEnd._on_enter(self, | |
|
534 | new_line_pos=new_line_pos) | |
|
535 | if old_prompt_num == self.current_prompt_pos: | |
|
536 | # No execution has happened | |
|
537 | self.GotoPos(self.GetLineEndPosition(current_line_num + 1)) | |
|
538 | return has_executed | |
|
464 | 539 | |
|
465 | 540 | |
|
466 | 541 | #-------------------------------------------------------------------------- |
|
467 | 542 | # EditWindow API |
|
468 | 543 | #-------------------------------------------------------------------------- |
|
469 | 544 | |
|
470 | 545 | def OnUpdateUI(self, event): |
|
471 | 546 | """ Override the OnUpdateUI of the EditWindow class, to prevent |
|
472 | 547 | syntax highlighting both for faster redraw, and for more |
|
473 | 548 | consistent look and feel. |
|
474 | 549 | """ |
|
475 | 550 | if not self._input_state == 'readline': |
|
476 | 551 | ConsoleWidget.OnUpdateUI(self, event) |
|
477 | 552 | |
|
478 | 553 | #-------------------------------------------------------------------------- |
|
479 | 554 | # Private API |
|
480 | 555 | #-------------------------------------------------------------------------- |
|
481 | 556 | |
|
482 | 557 | def _buffer_flush(self, event): |
|
483 | 558 | """ Called by the timer to flush the write buffer. |
|
484 | 559 | |
|
485 | 560 | This is always called in the mainloop, by the wx timer. |
|
486 | 561 | """ |
|
487 | 562 | self._out_buffer_lock.acquire() |
|
488 | 563 | _out_buffer = self._out_buffer |
|
489 | 564 | self._out_buffer = [] |
|
490 | 565 | self._out_buffer_lock.release() |
|
491 | 566 | self.write(''.join(_out_buffer), refresh=False) |
|
492 | 567 | |
|
493 | 568 | |
|
494 | 569 | def _colorize_input_buffer(self): |
|
495 | 570 | """ Keep the input buffer lines at a bright color. |
|
496 | 571 | """ |
|
497 | 572 | if not self._input_state in ('readline', 'raw_input'): |
|
498 | 573 | return |
|
499 | 574 | end_line = self.GetCurrentLine() |
|
500 | 575 | if not sys.platform == 'win32': |
|
501 | 576 | end_line += 1 |
|
502 | 577 | for i in range(self.current_prompt_line, end_line): |
|
503 | 578 | if i in self._markers: |
|
504 | 579 | self.MarkerDeleteHandle(self._markers[i]) |
|
505 | 580 | self._markers[i] = self.MarkerAdd(i, _INPUT_MARKER) |
|
506 | 581 | |
|
507 | 582 | |
|
508 | 583 | if __name__ == '__main__': |
|
509 | 584 | class MainWindow(wx.Frame): |
|
510 | 585 | def __init__(self, parent, id, title): |
|
511 | 586 | wx.Frame.__init__(self, parent, id, title, size=(300,250)) |
|
512 | 587 | self._sizer = wx.BoxSizer(wx.VERTICAL) |
|
513 | 588 | self.shell = WxController(self) |
|
514 | 589 | self._sizer.Add(self.shell, 1, wx.EXPAND) |
|
515 | 590 | self.SetSizer(self._sizer) |
|
516 | 591 | self.SetAutoLayout(1) |
|
517 | 592 | self.Show(True) |
|
518 | 593 | |
|
519 | 594 | app = wx.PySimpleApp() |
|
520 | 595 | frame = MainWindow(None, wx.ID_ANY, 'Ipython') |
|
521 | 596 | frame.shell.SetFocus() |
|
522 | 597 | frame.SetSize((680, 460)) |
|
523 | 598 | self = frame.shell |
|
524 | 599 | |
|
525 | 600 | app.MainLoop() |
|
526 | 601 |
@@ -1,2161 +1,2171 b'' | |||
|
1 | 1 | # -*- coding: utf-8 -*- |
|
2 | 2 | """General purpose utilities. |
|
3 | 3 | |
|
4 | 4 | This is a grab-bag of stuff I find useful in most programs I write. Some of |
|
5 | 5 | these things are also convenient when working at the command line. |
|
6 | 6 | """ |
|
7 | 7 | |
|
8 | 8 | #***************************************************************************** |
|
9 | 9 | # Copyright (C) 2001-2006 Fernando Perez. <fperez@colorado.edu> |
|
10 | 10 | # |
|
11 | 11 | # Distributed under the terms of the BSD License. The full license is in |
|
12 | 12 | # the file COPYING, distributed as part of this software. |
|
13 | 13 | #***************************************************************************** |
|
14 | 14 | |
|
15 | 15 | #**************************************************************************** |
|
16 | 16 | # required modules from the Python standard library |
|
17 | 17 | import __main__ |
|
18 | 18 | import commands |
|
19 | 19 | try: |
|
20 | 20 | import doctest |
|
21 | 21 | except ImportError: |
|
22 | 22 | pass |
|
23 | 23 | import os |
|
24 | 24 | import platform |
|
25 | 25 | import re |
|
26 | 26 | import shlex |
|
27 | 27 | import shutil |
|
28 | 28 | import subprocess |
|
29 | 29 | import sys |
|
30 | 30 | import tempfile |
|
31 | 31 | import time |
|
32 | 32 | import types |
|
33 | 33 | import warnings |
|
34 | 34 | |
|
35 | 35 | # Curses and termios are Unix-only modules |
|
36 | 36 | try: |
|
37 | 37 | import curses |
|
38 | 38 | # We need termios as well, so if its import happens to raise, we bail on |
|
39 | 39 | # using curses altogether. |
|
40 | 40 | import termios |
|
41 | 41 | except ImportError: |
|
42 | 42 | USE_CURSES = False |
|
43 | 43 | else: |
|
44 | 44 | # Curses on Solaris may not be complete, so we can't use it there |
|
45 | 45 | USE_CURSES = hasattr(curses,'initscr') |
|
46 | 46 | |
|
47 | 47 | # Other IPython utilities |
|
48 | 48 | import IPython |
|
49 | 49 | from IPython.Itpl import Itpl,itpl,printpl |
|
50 | 50 | from IPython import DPyGetOpt, platutils |
|
51 | 51 | from IPython.generics import result_display |
|
52 | 52 | import IPython.ipapi |
|
53 | 53 | from IPython.external.path import path |
|
54 | 54 | if os.name == "nt": |
|
55 | 55 | from IPython.winconsole import get_console_size |
|
56 | 56 | |
|
57 | 57 | try: |
|
58 | 58 | set |
|
59 | 59 | except: |
|
60 | 60 | from sets import Set as set |
|
61 | 61 | |
|
62 | 62 | |
|
63 | 63 | #**************************************************************************** |
|
64 | 64 | # Exceptions |
|
65 | 65 | class Error(Exception): |
|
66 | 66 | """Base class for exceptions in this module.""" |
|
67 | 67 | pass |
|
68 | 68 | |
|
69 | 69 | #---------------------------------------------------------------------------- |
|
70 | 70 | class IOStream: |
|
71 | 71 | def __init__(self,stream,fallback): |
|
72 | 72 | if not hasattr(stream,'write') or not hasattr(stream,'flush'): |
|
73 | 73 | stream = fallback |
|
74 | 74 | self.stream = stream |
|
75 | 75 | self._swrite = stream.write |
|
76 | 76 | self.flush = stream.flush |
|
77 | 77 | |
|
78 | 78 | def write(self,data): |
|
79 | 79 | try: |
|
80 | 80 | self._swrite(data) |
|
81 | 81 | except: |
|
82 | 82 | try: |
|
83 | 83 | # print handles some unicode issues which may trip a plain |
|
84 | 84 | # write() call. Attempt to emulate write() by using a |
|
85 | 85 | # trailing comma |
|
86 | 86 | print >> self.stream, data, |
|
87 | 87 | except: |
|
88 | 88 | # if we get here, something is seriously broken. |
|
89 | 89 | print >> sys.stderr, \ |
|
90 | 90 | 'ERROR - failed to write data to stream:', self.stream |
|
91 | 91 | |
|
92 | 92 | def close(self): |
|
93 | 93 | pass |
|
94 | 94 | |
|
95 | 95 | |
|
96 | 96 | class IOTerm: |
|
97 | 97 | """ Term holds the file or file-like objects for handling I/O operations. |
|
98 | 98 | |
|
99 | 99 | These are normally just sys.stdin, sys.stdout and sys.stderr but for |
|
100 | 100 | Windows they can can replaced to allow editing the strings before they are |
|
101 | 101 | displayed.""" |
|
102 | 102 | |
|
103 | 103 | # In the future, having IPython channel all its I/O operations through |
|
104 | 104 | # this class will make it easier to embed it into other environments which |
|
105 | 105 | # are not a normal terminal (such as a GUI-based shell) |
|
106 | 106 | def __init__(self,cin=None,cout=None,cerr=None): |
|
107 | 107 | self.cin = IOStream(cin,sys.stdin) |
|
108 | 108 | self.cout = IOStream(cout,sys.stdout) |
|
109 | 109 | self.cerr = IOStream(cerr,sys.stderr) |
|
110 | 110 | |
|
111 | 111 | # Global variable to be used for all I/O |
|
112 | 112 | Term = IOTerm() |
|
113 | 113 | |
|
114 | 114 | import IPython.rlineimpl as readline |
|
115 | 115 | # Remake Term to use the readline i/o facilities |
|
116 | 116 | if sys.platform == 'win32' and readline.have_readline: |
|
117 | 117 | |
|
118 | 118 | Term = IOTerm(cout=readline._outputfile,cerr=readline._outputfile) |
|
119 | 119 | |
|
120 | 120 | |
|
121 | 121 | #**************************************************************************** |
|
122 | 122 | # Generic warning/error printer, used by everything else |
|
123 | 123 | def warn(msg,level=2,exit_val=1): |
|
124 | 124 | """Standard warning printer. Gives formatting consistency. |
|
125 | 125 | |
|
126 | 126 | Output is sent to Term.cerr (sys.stderr by default). |
|
127 | 127 | |
|
128 | 128 | Options: |
|
129 | 129 | |
|
130 | 130 | -level(2): allows finer control: |
|
131 | 131 | 0 -> Do nothing, dummy function. |
|
132 | 132 | 1 -> Print message. |
|
133 | 133 | 2 -> Print 'WARNING:' + message. (Default level). |
|
134 | 134 | 3 -> Print 'ERROR:' + message. |
|
135 | 135 | 4 -> Print 'FATAL ERROR:' + message and trigger a sys.exit(exit_val). |
|
136 | 136 | |
|
137 | 137 | -exit_val (1): exit value returned by sys.exit() for a level 4 |
|
138 | 138 | warning. Ignored for all other levels.""" |
|
139 | 139 | |
|
140 | 140 | if level>0: |
|
141 | 141 | header = ['','','WARNING: ','ERROR: ','FATAL ERROR: '] |
|
142 | 142 | print >> Term.cerr, '%s%s' % (header[level],msg) |
|
143 | 143 | if level == 4: |
|
144 | 144 | print >> Term.cerr,'Exiting.\n' |
|
145 | 145 | sys.exit(exit_val) |
|
146 | 146 | |
|
147 | 147 | def info(msg): |
|
148 | 148 | """Equivalent to warn(msg,level=1).""" |
|
149 | 149 | |
|
150 | 150 | warn(msg,level=1) |
|
151 | 151 | |
|
152 | 152 | def error(msg): |
|
153 | 153 | """Equivalent to warn(msg,level=3).""" |
|
154 | 154 | |
|
155 | 155 | warn(msg,level=3) |
|
156 | 156 | |
|
157 | 157 | def fatal(msg,exit_val=1): |
|
158 | 158 | """Equivalent to warn(msg,exit_val=exit_val,level=4).""" |
|
159 | 159 | |
|
160 | 160 | warn(msg,exit_val=exit_val,level=4) |
|
161 | 161 | |
|
162 | 162 | #--------------------------------------------------------------------------- |
|
163 | 163 | # Debugging routines |
|
164 | 164 | # |
|
165 | 165 | def debugx(expr,pre_msg=''): |
|
166 | 166 | """Print the value of an expression from the caller's frame. |
|
167 | 167 | |
|
168 | 168 | Takes an expression, evaluates it in the caller's frame and prints both |
|
169 | 169 | the given expression and the resulting value (as well as a debug mark |
|
170 | 170 | indicating the name of the calling function. The input must be of a form |
|
171 | 171 | suitable for eval(). |
|
172 | 172 | |
|
173 | 173 | An optional message can be passed, which will be prepended to the printed |
|
174 | 174 | expr->value pair.""" |
|
175 | 175 | |
|
176 | 176 | cf = sys._getframe(1) |
|
177 | 177 | print '[DBG:%s] %s%s -> %r' % (cf.f_code.co_name,pre_msg,expr, |
|
178 | 178 | eval(expr,cf.f_globals,cf.f_locals)) |
|
179 | 179 | |
|
180 | 180 | # deactivate it by uncommenting the following line, which makes it a no-op |
|
181 | 181 | #def debugx(expr,pre_msg=''): pass |
|
182 | 182 | |
|
183 | 183 | #---------------------------------------------------------------------------- |
|
184 | 184 | StringTypes = types.StringTypes |
|
185 | 185 | |
|
186 | 186 | # Basic timing functionality |
|
187 | 187 | |
|
188 | 188 | # If possible (Unix), use the resource module instead of time.clock() |
|
189 | 189 | try: |
|
190 | 190 | import resource |
|
191 | 191 | def clocku(): |
|
192 | 192 | """clocku() -> floating point number |
|
193 | 193 | |
|
194 | 194 | Return the *USER* CPU time in seconds since the start of the process. |
|
195 | 195 | This is done via a call to resource.getrusage, so it avoids the |
|
196 | 196 | wraparound problems in time.clock().""" |
|
197 | 197 | |
|
198 | 198 | return resource.getrusage(resource.RUSAGE_SELF)[0] |
|
199 | 199 | |
|
200 | 200 | def clocks(): |
|
201 | 201 | """clocks() -> floating point number |
|
202 | 202 | |
|
203 | 203 | Return the *SYSTEM* CPU time in seconds since the start of the process. |
|
204 | 204 | This is done via a call to resource.getrusage, so it avoids the |
|
205 | 205 | wraparound problems in time.clock().""" |
|
206 | 206 | |
|
207 | 207 | return resource.getrusage(resource.RUSAGE_SELF)[1] |
|
208 | 208 | |
|
209 | 209 | def clock(): |
|
210 | 210 | """clock() -> floating point number |
|
211 | 211 | |
|
212 | 212 | Return the *TOTAL USER+SYSTEM* CPU time in seconds since the start of |
|
213 | 213 | the process. This is done via a call to resource.getrusage, so it |
|
214 | 214 | avoids the wraparound problems in time.clock().""" |
|
215 | 215 | |
|
216 | 216 | u,s = resource.getrusage(resource.RUSAGE_SELF)[:2] |
|
217 | 217 | return u+s |
|
218 | 218 | |
|
219 | 219 | def clock2(): |
|
220 | 220 | """clock2() -> (t_user,t_system) |
|
221 | 221 | |
|
222 | 222 | Similar to clock(), but return a tuple of user/system times.""" |
|
223 | 223 | return resource.getrusage(resource.RUSAGE_SELF)[:2] |
|
224 | 224 | |
|
225 | 225 | except ImportError: |
|
226 | 226 | # There is no distinction of user/system time under windows, so we just use |
|
227 | 227 | # time.clock() for everything... |
|
228 | 228 | clocku = clocks = clock = time.clock |
|
229 | 229 | def clock2(): |
|
230 | 230 | """Under windows, system CPU time can't be measured. |
|
231 | 231 | |
|
232 | 232 | This just returns clock() and zero.""" |
|
233 | 233 | return time.clock(),0.0 |
|
234 | 234 | |
|
235 | 235 | def timings_out(reps,func,*args,**kw): |
|
236 | 236 | """timings_out(reps,func,*args,**kw) -> (t_total,t_per_call,output) |
|
237 | 237 | |
|
238 | 238 | Execute a function reps times, return a tuple with the elapsed total |
|
239 | 239 | CPU time in seconds, the time per call and the function's output. |
|
240 | 240 | |
|
241 | 241 | Under Unix, the return value is the sum of user+system time consumed by |
|
242 | 242 | the process, computed via the resource module. This prevents problems |
|
243 | 243 | related to the wraparound effect which the time.clock() function has. |
|
244 | 244 | |
|
245 | 245 | Under Windows the return value is in wall clock seconds. See the |
|
246 | 246 | documentation for the time module for more details.""" |
|
247 | 247 | |
|
248 | 248 | reps = int(reps) |
|
249 | 249 | assert reps >=1, 'reps must be >= 1' |
|
250 | 250 | if reps==1: |
|
251 | 251 | start = clock() |
|
252 | 252 | out = func(*args,**kw) |
|
253 | 253 | tot_time = clock()-start |
|
254 | 254 | else: |
|
255 | 255 | rng = xrange(reps-1) # the last time is executed separately to store output |
|
256 | 256 | start = clock() |
|
257 | 257 | for dummy in rng: func(*args,**kw) |
|
258 | 258 | out = func(*args,**kw) # one last time |
|
259 | 259 | tot_time = clock()-start |
|
260 | 260 | av_time = tot_time / reps |
|
261 | 261 | return tot_time,av_time,out |
|
262 | 262 | |
|
263 | 263 | def timings(reps,func,*args,**kw): |
|
264 | 264 | """timings(reps,func,*args,**kw) -> (t_total,t_per_call) |
|
265 | 265 | |
|
266 | 266 | Execute a function reps times, return a tuple with the elapsed total CPU |
|
267 | 267 | time in seconds and the time per call. These are just the first two values |
|
268 | 268 | in timings_out().""" |
|
269 | 269 | |
|
270 | 270 | return timings_out(reps,func,*args,**kw)[0:2] |
|
271 | 271 | |
|
272 | 272 | def timing(func,*args,**kw): |
|
273 | 273 | """timing(func,*args,**kw) -> t_total |
|
274 | 274 | |
|
275 | 275 | Execute a function once, return the elapsed total CPU time in |
|
276 | 276 | seconds. This is just the first value in timings_out().""" |
|
277 | 277 | |
|
278 | 278 | return timings_out(1,func,*args,**kw)[0] |
|
279 | 279 | |
|
280 | 280 | #**************************************************************************** |
|
281 | 281 | # file and system |
|
282 | 282 | |
|
283 | 283 | def arg_split(s,posix=False): |
|
284 | 284 | """Split a command line's arguments in a shell-like manner. |
|
285 | 285 | |
|
286 | 286 | This is a modified version of the standard library's shlex.split() |
|
287 | 287 | function, but with a default of posix=False for splitting, so that quotes |
|
288 | 288 | in inputs are respected.""" |
|
289 | 289 | |
|
290 | 290 | # XXX - there may be unicode-related problems here!!! I'm not sure that |
|
291 | 291 | # shlex is truly unicode-safe, so it might be necessary to do |
|
292 | 292 | # |
|
293 | 293 | # s = s.encode(sys.stdin.encoding) |
|
294 | 294 | # |
|
295 | 295 | # first, to ensure that shlex gets a normal string. Input from anyone who |
|
296 | 296 | # knows more about unicode and shlex than I would be good to have here... |
|
297 | 297 | lex = shlex.shlex(s, posix=posix) |
|
298 | 298 | lex.whitespace_split = True |
|
299 | 299 | return list(lex) |
|
300 | 300 | |
|
301 | 301 | def system(cmd,verbose=0,debug=0,header=''): |
|
302 | 302 | """Execute a system command, return its exit status. |
|
303 | 303 | |
|
304 | 304 | Options: |
|
305 | 305 | |
|
306 | 306 | - verbose (0): print the command to be executed. |
|
307 | 307 | |
|
308 | 308 | - debug (0): only print, do not actually execute. |
|
309 | 309 | |
|
310 | 310 | - header (''): Header to print on screen prior to the executed command (it |
|
311 | 311 | is only prepended to the command, no newlines are added). |
|
312 | 312 | |
|
313 | 313 | Note: a stateful version of this function is available through the |
|
314 | 314 | SystemExec class.""" |
|
315 | 315 | |
|
316 | 316 | stat = 0 |
|
317 | 317 | if verbose or debug: print header+cmd |
|
318 | 318 | sys.stdout.flush() |
|
319 | 319 | if not debug: stat = os.system(cmd) |
|
320 | 320 | return stat |
|
321 | 321 | |
|
322 | 322 | def abbrev_cwd(): |
|
323 | 323 | """ Return abbreviated version of cwd, e.g. d:mydir """ |
|
324 | 324 | cwd = os.getcwd().replace('\\','/') |
|
325 | 325 | drivepart = '' |
|
326 | 326 | tail = cwd |
|
327 | 327 | if sys.platform == 'win32': |
|
328 | 328 | if len(cwd) < 4: |
|
329 | 329 | return cwd |
|
330 | 330 | drivepart,tail = os.path.splitdrive(cwd) |
|
331 | 331 | |
|
332 | 332 | |
|
333 | 333 | parts = tail.split('/') |
|
334 | 334 | if len(parts) > 2: |
|
335 | 335 | tail = '/'.join(parts[-2:]) |
|
336 | 336 | |
|
337 | 337 | return (drivepart + ( |
|
338 | 338 | cwd == '/' and '/' or tail)) |
|
339 | 339 | |
|
340 | 340 | |
|
341 | 341 | # This function is used by ipython in a lot of places to make system calls. |
|
342 | 342 | # We need it to be slightly different under win32, due to the vagaries of |
|
343 | 343 | # 'network shares'. A win32 override is below. |
|
344 | 344 | |
|
345 | 345 | def shell(cmd,verbose=0,debug=0,header=''): |
|
346 | 346 | """Execute a command in the system shell, always return None. |
|
347 | 347 | |
|
348 | 348 | Options: |
|
349 | 349 | |
|
350 | 350 | - verbose (0): print the command to be executed. |
|
351 | 351 | |
|
352 | 352 | - debug (0): only print, do not actually execute. |
|
353 | 353 | |
|
354 | 354 | - header (''): Header to print on screen prior to the executed command (it |
|
355 | 355 | is only prepended to the command, no newlines are added). |
|
356 | 356 | |
|
357 | 357 | Note: this is similar to genutils.system(), but it returns None so it can |
|
358 | 358 | be conveniently used in interactive loops without getting the return value |
|
359 | 359 | (typically 0) printed many times.""" |
|
360 | 360 | |
|
361 | 361 | stat = 0 |
|
362 | 362 | if verbose or debug: print header+cmd |
|
363 | 363 | # flush stdout so we don't mangle python's buffering |
|
364 | 364 | sys.stdout.flush() |
|
365 | 365 | |
|
366 | 366 | if not debug: |
|
367 | 367 | platutils.set_term_title("IPy " + cmd) |
|
368 | 368 | os.system(cmd) |
|
369 | 369 | platutils.set_term_title("IPy " + abbrev_cwd()) |
|
370 | 370 | |
|
371 | 371 | # override shell() for win32 to deal with network shares |
|
372 | 372 | if os.name in ('nt','dos'): |
|
373 | 373 | |
|
374 | 374 | shell_ori = shell |
|
375 | 375 | |
|
376 | 376 | def shell(cmd,verbose=0,debug=0,header=''): |
|
377 | 377 | if os.getcwd().startswith(r"\\"): |
|
378 | 378 | path = os.getcwd() |
|
379 | 379 | # change to c drive (cannot be on UNC-share when issuing os.system, |
|
380 | 380 | # as cmd.exe cannot handle UNC addresses) |
|
381 | 381 | os.chdir("c:") |
|
382 | 382 | # issue pushd to the UNC-share and then run the command |
|
383 | 383 | try: |
|
384 | 384 | shell_ori('"pushd %s&&"'%path+cmd,verbose,debug,header) |
|
385 | 385 | finally: |
|
386 | 386 | os.chdir(path) |
|
387 | 387 | else: |
|
388 | 388 | shell_ori(cmd,verbose,debug,header) |
|
389 | 389 | |
|
390 | 390 | shell.__doc__ = shell_ori.__doc__ |
|
391 | 391 | |
|
392 | 392 | def getoutput(cmd,verbose=0,debug=0,header='',split=0): |
|
393 | 393 | """Dummy substitute for perl's backquotes. |
|
394 | 394 | |
|
395 | 395 | Executes a command and returns the output. |
|
396 | 396 | |
|
397 | 397 | Accepts the same arguments as system(), plus: |
|
398 | 398 | |
|
399 | 399 | - split(0): if true, the output is returned as a list split on newlines. |
|
400 | 400 | |
|
401 | 401 | Note: a stateful version of this function is available through the |
|
402 | 402 | SystemExec class. |
|
403 | 403 | |
|
404 | 404 | This is pretty much deprecated and rarely used, |
|
405 | 405 | genutils.getoutputerror may be what you need. |
|
406 | 406 | |
|
407 | 407 | """ |
|
408 | 408 | |
|
409 | 409 | if verbose or debug: print header+cmd |
|
410 | 410 | if not debug: |
|
411 | 411 | output = os.popen(cmd).read() |
|
412 | 412 | # stipping last \n is here for backwards compat. |
|
413 | 413 | if output.endswith('\n'): |
|
414 | 414 | output = output[:-1] |
|
415 | 415 | if split: |
|
416 | 416 | return output.split('\n') |
|
417 | 417 | else: |
|
418 | 418 | return output |
|
419 | 419 | |
|
420 | 420 | def getoutputerror(cmd,verbose=0,debug=0,header='',split=0): |
|
421 | 421 | """Return (standard output,standard error) of executing cmd in a shell. |
|
422 | 422 | |
|
423 | 423 | Accepts the same arguments as system(), plus: |
|
424 | 424 | |
|
425 | 425 | - split(0): if true, each of stdout/err is returned as a list split on |
|
426 | 426 | newlines. |
|
427 | 427 | |
|
428 | 428 | Note: a stateful version of this function is available through the |
|
429 | 429 | SystemExec class.""" |
|
430 | 430 | |
|
431 | 431 | if verbose or debug: print header+cmd |
|
432 | 432 | if not cmd: |
|
433 | 433 | if split: |
|
434 | 434 | return [],[] |
|
435 | 435 | else: |
|
436 | 436 | return '','' |
|
437 | 437 | if not debug: |
|
438 | 438 | pin,pout,perr = os.popen3(cmd) |
|
439 | 439 | tout = pout.read().rstrip() |
|
440 | 440 | terr = perr.read().rstrip() |
|
441 | 441 | pin.close() |
|
442 | 442 | pout.close() |
|
443 | 443 | perr.close() |
|
444 | 444 | if split: |
|
445 | 445 | return tout.split('\n'),terr.split('\n') |
|
446 | 446 | else: |
|
447 | 447 | return tout,terr |
|
448 | 448 | |
|
449 | 449 | # for compatibility with older naming conventions |
|
450 | 450 | xsys = system |
|
451 | 451 | bq = getoutput |
|
452 | 452 | |
|
453 | 453 | class SystemExec: |
|
454 | 454 | """Access the system and getoutput functions through a stateful interface. |
|
455 | 455 | |
|
456 | 456 | Note: here we refer to the system and getoutput functions from this |
|
457 | 457 | library, not the ones from the standard python library. |
|
458 | 458 | |
|
459 | 459 | This class offers the system and getoutput functions as methods, but the |
|
460 | 460 | verbose, debug and header parameters can be set for the instance (at |
|
461 | 461 | creation time or later) so that they don't need to be specified on each |
|
462 | 462 | call. |
|
463 | 463 | |
|
464 | 464 | For efficiency reasons, there's no way to override the parameters on a |
|
465 | 465 | per-call basis other than by setting instance attributes. If you need |
|
466 | 466 | local overrides, it's best to directly call system() or getoutput(). |
|
467 | 467 | |
|
468 | 468 | The following names are provided as alternate options: |
|
469 | 469 | - xsys: alias to system |
|
470 | 470 | - bq: alias to getoutput |
|
471 | 471 | |
|
472 | 472 | An instance can then be created as: |
|
473 | 473 | >>> sysexec = SystemExec(verbose=1,debug=0,header='Calling: ') |
|
474 | 474 | """ |
|
475 | 475 | |
|
476 | 476 | def __init__(self,verbose=0,debug=0,header='',split=0): |
|
477 | 477 | """Specify the instance's values for verbose, debug and header.""" |
|
478 | 478 | setattr_list(self,'verbose debug header split') |
|
479 | 479 | |
|
480 | 480 | def system(self,cmd): |
|
481 | 481 | """Stateful interface to system(), with the same keyword parameters.""" |
|
482 | 482 | |
|
483 | 483 | system(cmd,self.verbose,self.debug,self.header) |
|
484 | 484 | |
|
485 | 485 | def shell(self,cmd): |
|
486 | 486 | """Stateful interface to shell(), with the same keyword parameters.""" |
|
487 | 487 | |
|
488 | 488 | shell(cmd,self.verbose,self.debug,self.header) |
|
489 | 489 | |
|
490 | 490 | xsys = system # alias |
|
491 | 491 | |
|
492 | 492 | def getoutput(self,cmd): |
|
493 | 493 | """Stateful interface to getoutput().""" |
|
494 | 494 | |
|
495 | 495 | return getoutput(cmd,self.verbose,self.debug,self.header,self.split) |
|
496 | 496 | |
|
497 | 497 | def getoutputerror(self,cmd): |
|
498 | 498 | """Stateful interface to getoutputerror().""" |
|
499 | 499 | |
|
500 | 500 | return getoutputerror(cmd,self.verbose,self.debug,self.header,self.split) |
|
501 | 501 | |
|
502 | 502 | bq = getoutput # alias |
|
503 | 503 | |
|
504 | 504 | #----------------------------------------------------------------------------- |
|
505 | 505 | def mutex_opts(dict,ex_op): |
|
506 | 506 | """Check for presence of mutually exclusive keys in a dict. |
|
507 | 507 | |
|
508 | 508 | Call: mutex_opts(dict,[[op1a,op1b],[op2a,op2b]...]""" |
|
509 | 509 | for op1,op2 in ex_op: |
|
510 | 510 | if op1 in dict and op2 in dict: |
|
511 | 511 | raise ValueError,'\n*** ERROR in Arguments *** '\ |
|
512 | 512 | 'Options '+op1+' and '+op2+' are mutually exclusive.' |
|
513 | 513 | |
|
514 | 514 | #----------------------------------------------------------------------------- |
|
515 | 515 | def get_py_filename(name): |
|
516 | 516 | """Return a valid python filename in the current directory. |
|
517 | 517 | |
|
518 | 518 | If the given name is not a file, it adds '.py' and searches again. |
|
519 | 519 | Raises IOError with an informative message if the file isn't found.""" |
|
520 | 520 | |
|
521 | 521 | name = os.path.expanduser(name) |
|
522 | 522 | if not os.path.isfile(name) and not name.endswith('.py'): |
|
523 | 523 | name += '.py' |
|
524 | 524 | if os.path.isfile(name): |
|
525 | 525 | return name |
|
526 | 526 | else: |
|
527 | 527 | raise IOError,'File `%s` not found.' % name |
|
528 | 528 | |
|
529 | 529 | #----------------------------------------------------------------------------- |
|
530 | 530 | def filefind(fname,alt_dirs = None): |
|
531 | 531 | """Return the given filename either in the current directory, if it |
|
532 | 532 | exists, or in a specified list of directories. |
|
533 | 533 | |
|
534 | 534 | ~ expansion is done on all file and directory names. |
|
535 | 535 | |
|
536 | 536 | Upon an unsuccessful search, raise an IOError exception.""" |
|
537 | 537 | |
|
538 | 538 | if alt_dirs is None: |
|
539 | 539 | try: |
|
540 | 540 | alt_dirs = get_home_dir() |
|
541 | 541 | except HomeDirError: |
|
542 | 542 | alt_dirs = os.getcwd() |
|
543 | 543 | search = [fname] + list_strings(alt_dirs) |
|
544 | 544 | search = map(os.path.expanduser,search) |
|
545 | 545 | #print 'search list for',fname,'list:',search # dbg |
|
546 | 546 | fname = search[0] |
|
547 | 547 | if os.path.isfile(fname): |
|
548 | 548 | return fname |
|
549 | 549 | for direc in search[1:]: |
|
550 | 550 | testname = os.path.join(direc,fname) |
|
551 | 551 | #print 'testname',testname # dbg |
|
552 | 552 | if os.path.isfile(testname): |
|
553 | 553 | return testname |
|
554 | 554 | raise IOError,'File' + `fname` + \ |
|
555 | 555 | ' not found in current or supplied directories:' + `alt_dirs` |
|
556 | 556 | |
|
557 | 557 | #---------------------------------------------------------------------------- |
|
558 | 558 | def file_read(filename): |
|
559 | 559 | """Read a file and close it. Returns the file source.""" |
|
560 | 560 | fobj = open(filename,'r'); |
|
561 | 561 | source = fobj.read(); |
|
562 | 562 | fobj.close() |
|
563 | 563 | return source |
|
564 | 564 | |
|
565 | 565 | def file_readlines(filename): |
|
566 | 566 | """Read a file and close it. Returns the file source using readlines().""" |
|
567 | 567 | fobj = open(filename,'r'); |
|
568 | 568 | lines = fobj.readlines(); |
|
569 | 569 | fobj.close() |
|
570 | 570 | return lines |
|
571 | 571 | |
|
572 | 572 | #---------------------------------------------------------------------------- |
|
573 | 573 | def target_outdated(target,deps): |
|
574 | 574 | """Determine whether a target is out of date. |
|
575 | 575 | |
|
576 | 576 | target_outdated(target,deps) -> 1/0 |
|
577 | 577 | |
|
578 | 578 | deps: list of filenames which MUST exist. |
|
579 | 579 | target: single filename which may or may not exist. |
|
580 | 580 | |
|
581 | 581 | If target doesn't exist or is older than any file listed in deps, return |
|
582 | 582 | true, otherwise return false. |
|
583 | 583 | """ |
|
584 | 584 | try: |
|
585 | 585 | target_time = os.path.getmtime(target) |
|
586 | 586 | except os.error: |
|
587 | 587 | return 1 |
|
588 | 588 | for dep in deps: |
|
589 | 589 | dep_time = os.path.getmtime(dep) |
|
590 | 590 | if dep_time > target_time: |
|
591 | 591 | #print "For target",target,"Dep failed:",dep # dbg |
|
592 | 592 | #print "times (dep,tar):",dep_time,target_time # dbg |
|
593 | 593 | return 1 |
|
594 | 594 | return 0 |
|
595 | 595 | |
|
596 | 596 | #----------------------------------------------------------------------------- |
|
597 | 597 | def target_update(target,deps,cmd): |
|
598 | 598 | """Update a target with a given command given a list of dependencies. |
|
599 | 599 | |
|
600 | 600 | target_update(target,deps,cmd) -> runs cmd if target is outdated. |
|
601 | 601 | |
|
602 | 602 | This is just a wrapper around target_outdated() which calls the given |
|
603 | 603 | command if target is outdated.""" |
|
604 | 604 | |
|
605 | 605 | if target_outdated(target,deps): |
|
606 | 606 | xsys(cmd) |
|
607 | 607 | |
|
608 | 608 | #---------------------------------------------------------------------------- |
|
609 | 609 | def unquote_ends(istr): |
|
610 | 610 | """Remove a single pair of quotes from the endpoints of a string.""" |
|
611 | 611 | |
|
612 | 612 | if not istr: |
|
613 | 613 | return istr |
|
614 | 614 | if (istr[0]=="'" and istr[-1]=="'") or \ |
|
615 | 615 | (istr[0]=='"' and istr[-1]=='"'): |
|
616 | 616 | return istr[1:-1] |
|
617 | 617 | else: |
|
618 | 618 | return istr |
|
619 | 619 | |
|
620 | 620 | #---------------------------------------------------------------------------- |
|
621 | 621 | def process_cmdline(argv,names=[],defaults={},usage=''): |
|
622 | 622 | """ Process command-line options and arguments. |
|
623 | 623 | |
|
624 | 624 | Arguments: |
|
625 | 625 | |
|
626 | 626 | - argv: list of arguments, typically sys.argv. |
|
627 | 627 | |
|
628 | 628 | - names: list of option names. See DPyGetOpt docs for details on options |
|
629 | 629 | syntax. |
|
630 | 630 | |
|
631 | 631 | - defaults: dict of default values. |
|
632 | 632 | |
|
633 | 633 | - usage: optional usage notice to print if a wrong argument is passed. |
|
634 | 634 | |
|
635 | 635 | Return a dict of options and a list of free arguments.""" |
|
636 | 636 | |
|
637 | 637 | getopt = DPyGetOpt.DPyGetOpt() |
|
638 | 638 | getopt.setIgnoreCase(0) |
|
639 | 639 | getopt.parseConfiguration(names) |
|
640 | 640 | |
|
641 | 641 | try: |
|
642 | 642 | getopt.processArguments(argv) |
|
643 | 643 | except DPyGetOpt.ArgumentError, exc: |
|
644 | 644 | print usage |
|
645 | 645 | warn('"%s"' % exc,level=4) |
|
646 | 646 | |
|
647 | 647 | defaults.update(getopt.optionValues) |
|
648 | 648 | args = getopt.freeValues |
|
649 | 649 | |
|
650 | 650 | return defaults,args |
|
651 | 651 | |
|
652 | 652 | #---------------------------------------------------------------------------- |
|
653 | 653 | def optstr2types(ostr): |
|
654 | 654 | """Convert a string of option names to a dict of type mappings. |
|
655 | 655 | |
|
656 | 656 | optstr2types(str) -> {None:'string_opts',int:'int_opts',float:'float_opts'} |
|
657 | 657 | |
|
658 | 658 | This is used to get the types of all the options in a string formatted |
|
659 | 659 | with the conventions of DPyGetOpt. The 'type' None is used for options |
|
660 | 660 | which are strings (they need no further conversion). This function's main |
|
661 | 661 | use is to get a typemap for use with read_dict(). |
|
662 | 662 | """ |
|
663 | 663 | |
|
664 | 664 | typeconv = {None:'',int:'',float:''} |
|
665 | 665 | typemap = {'s':None,'i':int,'f':float} |
|
666 | 666 | opt_re = re.compile(r'([\w]*)([^:=]*:?=?)([sif]?)') |
|
667 | 667 | |
|
668 | 668 | for w in ostr.split(): |
|
669 | 669 | oname,alias,otype = opt_re.match(w).groups() |
|
670 | 670 | if otype == '' or alias == '!': # simple switches are integers too |
|
671 | 671 | otype = 'i' |
|
672 | 672 | typeconv[typemap[otype]] += oname + ' ' |
|
673 | 673 | return typeconv |
|
674 | 674 | |
|
675 | 675 | #---------------------------------------------------------------------------- |
|
676 | 676 | def read_dict(filename,type_conv=None,**opt): |
|
677 | 677 | r"""Read a dictionary of key=value pairs from an input file, optionally |
|
678 | 678 | performing conversions on the resulting values. |
|
679 | 679 | |
|
680 | 680 | read_dict(filename,type_conv,**opt) -> dict |
|
681 | 681 | |
|
682 | 682 | Only one value per line is accepted, the format should be |
|
683 | 683 | # optional comments are ignored |
|
684 | 684 | key value\n |
|
685 | 685 | |
|
686 | 686 | Args: |
|
687 | 687 | |
|
688 | 688 | - type_conv: A dictionary specifying which keys need to be converted to |
|
689 | 689 | which types. By default all keys are read as strings. This dictionary |
|
690 | 690 | should have as its keys valid conversion functions for strings |
|
691 | 691 | (int,long,float,complex, or your own). The value for each key |
|
692 | 692 | (converter) should be a whitespace separated string containing the names |
|
693 | 693 | of all the entries in the file to be converted using that function. For |
|
694 | 694 | keys to be left alone, use None as the conversion function (only needed |
|
695 | 695 | with purge=1, see below). |
|
696 | 696 | |
|
697 | 697 | - opt: dictionary with extra options as below (default in parens) |
|
698 | 698 | |
|
699 | 699 | purge(0): if set to 1, all keys *not* listed in type_conv are purged out |
|
700 | 700 | of the dictionary to be returned. If purge is going to be used, the |
|
701 | 701 | set of keys to be left as strings also has to be explicitly specified |
|
702 | 702 | using the (non-existent) conversion function None. |
|
703 | 703 | |
|
704 | 704 | fs(None): field separator. This is the key/value separator to be used |
|
705 | 705 | when parsing the file. The None default means any whitespace [behavior |
|
706 | 706 | of string.split()]. |
|
707 | 707 | |
|
708 | 708 | strip(0): if 1, strip string values of leading/trailinig whitespace. |
|
709 | 709 | |
|
710 | 710 | warn(1): warning level if requested keys are not found in file. |
|
711 | 711 | - 0: silently ignore. |
|
712 | 712 | - 1: inform but proceed. |
|
713 | 713 | - 2: raise KeyError exception. |
|
714 | 714 | |
|
715 | 715 | no_empty(0): if 1, remove keys with whitespace strings as a value. |
|
716 | 716 | |
|
717 | 717 | unique([]): list of keys (or space separated string) which can't be |
|
718 | 718 | repeated. If one such key is found in the file, each new instance |
|
719 | 719 | overwrites the previous one. For keys not listed here, the behavior is |
|
720 | 720 | to make a list of all appearances. |
|
721 | 721 | |
|
722 | 722 | Example: |
|
723 | 723 | |
|
724 | 724 | If the input file test.ini contains (we put it in a string to keep the test |
|
725 | 725 | self-contained): |
|
726 | 726 | |
|
727 | 727 | >>> test_ini = '''\ |
|
728 | 728 | ... i 3 |
|
729 | 729 | ... x 4.5 |
|
730 | 730 | ... y 5.5 |
|
731 | 731 | ... s hi ho''' |
|
732 | 732 | |
|
733 | 733 | Then we can use it as follows: |
|
734 | 734 | >>> type_conv={int:'i',float:'x',None:'s'} |
|
735 | 735 | |
|
736 | 736 | >>> d = read_dict(test_ini) |
|
737 | 737 | |
|
738 | 738 | >>> sorted(d.items()) |
|
739 | 739 | [('i', '3'), ('s', 'hi ho'), ('x', '4.5'), ('y', '5.5')] |
|
740 | 740 | |
|
741 | 741 | >>> d = read_dict(test_ini,type_conv) |
|
742 | 742 | |
|
743 | 743 | >>> sorted(d.items()) |
|
744 | 744 | [('i', 3), ('s', 'hi ho'), ('x', 4.5), ('y', '5.5')] |
|
745 | 745 | |
|
746 | 746 | >>> d = read_dict(test_ini,type_conv,purge=True) |
|
747 | 747 | |
|
748 | 748 | >>> sorted(d.items()) |
|
749 | 749 | [('i', 3), ('s', 'hi ho'), ('x', 4.5)] |
|
750 | 750 | """ |
|
751 | 751 | |
|
752 | 752 | # starting config |
|
753 | 753 | opt.setdefault('purge',0) |
|
754 | 754 | opt.setdefault('fs',None) # field sep defaults to any whitespace |
|
755 | 755 | opt.setdefault('strip',0) |
|
756 | 756 | opt.setdefault('warn',1) |
|
757 | 757 | opt.setdefault('no_empty',0) |
|
758 | 758 | opt.setdefault('unique','') |
|
759 | 759 | if type(opt['unique']) in StringTypes: |
|
760 | 760 | unique_keys = qw(opt['unique']) |
|
761 | 761 | elif type(opt['unique']) in (types.TupleType,types.ListType): |
|
762 | 762 | unique_keys = opt['unique'] |
|
763 | 763 | else: |
|
764 | 764 | raise ValueError, 'Unique keys must be given as a string, List or Tuple' |
|
765 | 765 | |
|
766 | 766 | dict = {} |
|
767 | 767 | |
|
768 | 768 | # first read in table of values as strings |
|
769 | 769 | if '\n' in filename: |
|
770 | 770 | lines = filename.splitlines() |
|
771 | 771 | file = None |
|
772 | 772 | else: |
|
773 | 773 | file = open(filename,'r') |
|
774 | 774 | lines = file.readlines() |
|
775 | 775 | for line in lines: |
|
776 | 776 | line = line.strip() |
|
777 | 777 | if len(line) and line[0]=='#': continue |
|
778 | 778 | if len(line)>0: |
|
779 | 779 | lsplit = line.split(opt['fs'],1) |
|
780 | 780 | try: |
|
781 | 781 | key,val = lsplit |
|
782 | 782 | except ValueError: |
|
783 | 783 | key,val = lsplit[0],'' |
|
784 | 784 | key = key.strip() |
|
785 | 785 | if opt['strip']: val = val.strip() |
|
786 | 786 | if val == "''" or val == '""': val = '' |
|
787 | 787 | if opt['no_empty'] and (val=='' or val.isspace()): |
|
788 | 788 | continue |
|
789 | 789 | # if a key is found more than once in the file, build a list |
|
790 | 790 | # unless it's in the 'unique' list. In that case, last found in file |
|
791 | 791 | # takes precedence. User beware. |
|
792 | 792 | try: |
|
793 | 793 | if dict[key] and key in unique_keys: |
|
794 | 794 | dict[key] = val |
|
795 | 795 | elif type(dict[key]) is types.ListType: |
|
796 | 796 | dict[key].append(val) |
|
797 | 797 | else: |
|
798 | 798 | dict[key] = [dict[key],val] |
|
799 | 799 | except KeyError: |
|
800 | 800 | dict[key] = val |
|
801 | 801 | # purge if requested |
|
802 | 802 | if opt['purge']: |
|
803 | 803 | accepted_keys = qwflat(type_conv.values()) |
|
804 | 804 | for key in dict.keys(): |
|
805 | 805 | if key in accepted_keys: continue |
|
806 | 806 | del(dict[key]) |
|
807 | 807 | # now convert if requested |
|
808 | 808 | if type_conv==None: return dict |
|
809 | 809 | conversions = type_conv.keys() |
|
810 | 810 | try: conversions.remove(None) |
|
811 | 811 | except: pass |
|
812 | 812 | for convert in conversions: |
|
813 | 813 | for val in qw(type_conv[convert]): |
|
814 | 814 | try: |
|
815 | 815 | dict[val] = convert(dict[val]) |
|
816 | 816 | except KeyError,e: |
|
817 | 817 | if opt['warn'] == 0: |
|
818 | 818 | pass |
|
819 | 819 | elif opt['warn'] == 1: |
|
820 | 820 | print >>sys.stderr, 'Warning: key',val,\ |
|
821 | 821 | 'not found in file',filename |
|
822 | 822 | elif opt['warn'] == 2: |
|
823 | 823 | raise KeyError,e |
|
824 | 824 | else: |
|
825 | 825 | raise ValueError,'Warning level must be 0,1 or 2' |
|
826 | 826 | |
|
827 | 827 | return dict |
|
828 | 828 | |
|
829 | 829 | #---------------------------------------------------------------------------- |
|
830 | 830 | def flag_calls(func): |
|
831 | 831 | """Wrap a function to detect and flag when it gets called. |
|
832 | 832 | |
|
833 | 833 | This is a decorator which takes a function and wraps it in a function with |
|
834 | 834 | a 'called' attribute. wrapper.called is initialized to False. |
|
835 | 835 | |
|
836 | 836 | The wrapper.called attribute is set to False right before each call to the |
|
837 | 837 | wrapped function, so if the call fails it remains False. After the call |
|
838 | 838 | completes, wrapper.called is set to True and the output is returned. |
|
839 | 839 | |
|
840 | 840 | Testing for truth in wrapper.called allows you to determine if a call to |
|
841 | 841 | func() was attempted and succeeded.""" |
|
842 | 842 | |
|
843 | 843 | def wrapper(*args,**kw): |
|
844 | 844 | wrapper.called = False |
|
845 | 845 | out = func(*args,**kw) |
|
846 | 846 | wrapper.called = True |
|
847 | 847 | return out |
|
848 | 848 | |
|
849 | 849 | wrapper.called = False |
|
850 | 850 | wrapper.__doc__ = func.__doc__ |
|
851 | 851 | return wrapper |
|
852 | 852 | |
|
853 | 853 | #---------------------------------------------------------------------------- |
|
854 | 854 | def dhook_wrap(func,*a,**k): |
|
855 | 855 | """Wrap a function call in a sys.displayhook controller. |
|
856 | 856 | |
|
857 | 857 | Returns a wrapper around func which calls func, with all its arguments and |
|
858 | 858 | keywords unmodified, using the default sys.displayhook. Since IPython |
|
859 | 859 | modifies sys.displayhook, it breaks the behavior of certain systems that |
|
860 | 860 | rely on the default behavior, notably doctest. |
|
861 | 861 | """ |
|
862 | 862 | |
|
863 | 863 | def f(*a,**k): |
|
864 | 864 | |
|
865 | 865 | dhook_s = sys.displayhook |
|
866 | 866 | sys.displayhook = sys.__displayhook__ |
|
867 | 867 | try: |
|
868 | 868 | out = func(*a,**k) |
|
869 | 869 | finally: |
|
870 | 870 | sys.displayhook = dhook_s |
|
871 | 871 | |
|
872 | 872 | return out |
|
873 | 873 | |
|
874 | 874 | f.__doc__ = func.__doc__ |
|
875 | 875 | return f |
|
876 | 876 | |
|
877 | 877 | #---------------------------------------------------------------------------- |
|
878 | 878 | def doctest_reload(): |
|
879 | 879 | """Properly reload doctest to reuse it interactively. |
|
880 | 880 | |
|
881 | 881 | This routine: |
|
882 | 882 | |
|
883 | 883 | - reloads doctest |
|
884 | 884 | |
|
885 | 885 | - resets its global 'master' attribute to None, so that multiple uses of |
|
886 | 886 | the module interactively don't produce cumulative reports. |
|
887 | 887 | |
|
888 | 888 | - Monkeypatches its core test runner method to protect it from IPython's |
|
889 | 889 | modified displayhook. Doctest expects the default displayhook behavior |
|
890 | 890 | deep down, so our modification breaks it completely. For this reason, a |
|
891 | 891 | hard monkeypatch seems like a reasonable solution rather than asking |
|
892 | 892 | users to manually use a different doctest runner when under IPython.""" |
|
893 | 893 | |
|
894 | 894 | import doctest |
|
895 | 895 | reload(doctest) |
|
896 | 896 | doctest.master=None |
|
897 | 897 | |
|
898 | 898 | try: |
|
899 | 899 | doctest.DocTestRunner |
|
900 | 900 | except AttributeError: |
|
901 | 901 | # This is only for python 2.3 compatibility, remove once we move to |
|
902 | 902 | # 2.4 only. |
|
903 | 903 | pass |
|
904 | 904 | else: |
|
905 | 905 | doctest.DocTestRunner.run = dhook_wrap(doctest.DocTestRunner.run) |
|
906 | 906 | |
|
907 | 907 | #---------------------------------------------------------------------------- |
|
908 | 908 | class HomeDirError(Error): |
|
909 | 909 | pass |
|
910 | 910 | |
|
911 | 911 | def get_home_dir(): |
|
912 | 912 | """Return the closest possible equivalent to a 'home' directory. |
|
913 | 913 | |
|
914 | 914 | We first try $HOME. Absent that, on NT it's $HOMEDRIVE\$HOMEPATH. |
|
915 | 915 | |
|
916 | 916 | Currently only Posix and NT are implemented, a HomeDirError exception is |
|
917 | 917 | raised for all other OSes. """ |
|
918 | 918 | |
|
919 | 919 | isdir = os.path.isdir |
|
920 | 920 | env = os.environ |
|
921 | 921 | |
|
922 | 922 | # first, check py2exe distribution root directory for _ipython. |
|
923 | 923 | # This overrides all. Normally does not exist. |
|
924 | 924 | |
|
925 | 925 | if hasattr(sys, "frozen"): #Is frozen by py2exe |
|
926 | 926 | if '\\library.zip\\' in IPython.__file__.lower():#libraries compressed to zip-file |
|
927 | 927 | root, rest = IPython.__file__.lower().split('library.zip') |
|
928 | 928 | else: |
|
929 | 929 | root=os.path.join(os.path.split(IPython.__file__)[0],"../../") |
|
930 | 930 | root=os.path.abspath(root).rstrip('\\') |
|
931 | 931 | if isdir(os.path.join(root, '_ipython')): |
|
932 | 932 | os.environ["IPYKITROOT"] = root |
|
933 | 933 | return root |
|
934 | 934 | try: |
|
935 | 935 | homedir = env['HOME'] |
|
936 | 936 | if not isdir(homedir): |
|
937 | 937 | # in case a user stuck some string which does NOT resolve to a |
|
938 | 938 | # valid path, it's as good as if we hadn't foud it |
|
939 | 939 | raise KeyError |
|
940 | 940 | return homedir |
|
941 | 941 | except KeyError: |
|
942 | 942 | if os.name == 'posix': |
|
943 | 943 | raise HomeDirError,'undefined $HOME, IPython can not proceed.' |
|
944 | 944 | elif os.name == 'nt': |
|
945 | 945 | # For some strange reason, win9x returns 'nt' for os.name. |
|
946 | 946 | try: |
|
947 | 947 | homedir = os.path.join(env['HOMEDRIVE'],env['HOMEPATH']) |
|
948 | 948 | if not isdir(homedir): |
|
949 | 949 | homedir = os.path.join(env['USERPROFILE']) |
|
950 | 950 | if not isdir(homedir): |
|
951 | 951 | raise HomeDirError |
|
952 | 952 | return homedir |
|
953 | 953 | except KeyError: |
|
954 | 954 | try: |
|
955 | 955 | # Use the registry to get the 'My Documents' folder. |
|
956 | 956 | import _winreg as wreg |
|
957 | 957 | key = wreg.OpenKey(wreg.HKEY_CURRENT_USER, |
|
958 | 958 | "Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders") |
|
959 | 959 | homedir = wreg.QueryValueEx(key,'Personal')[0] |
|
960 | 960 | key.Close() |
|
961 | 961 | if not isdir(homedir): |
|
962 | 962 | e = ('Invalid "Personal" folder registry key ' |
|
963 | 963 | 'typically "My Documents".\n' |
|
964 | 964 | 'Value: %s\n' |
|
965 | 965 | 'This is not a valid directory on your system.' % |
|
966 | 966 | homedir) |
|
967 | 967 | raise HomeDirError(e) |
|
968 | 968 | return homedir |
|
969 | 969 | except HomeDirError: |
|
970 | 970 | raise |
|
971 | 971 | except: |
|
972 | 972 | return 'C:\\' |
|
973 | 973 | elif os.name == 'dos': |
|
974 | 974 | # Desperate, may do absurd things in classic MacOS. May work under DOS. |
|
975 | 975 | return 'C:\\' |
|
976 | 976 | else: |
|
977 | 977 | raise HomeDirError,'support for your operating system not implemented.' |
|
978 | 978 | |
|
979 | 979 | |
|
980 | 980 | def get_ipython_dir(): |
|
981 | 981 | """Get the IPython directory for this platform and user. |
|
982 | 982 | |
|
983 | 983 | This uses the logic in `get_home_dir` to find the home directory |
|
984 | 984 | and the adds either .ipython or _ipython to the end of the path. |
|
985 | 985 | """ |
|
986 | 986 | if os.name == 'posix': |
|
987 | 987 | ipdir_def = '.ipython' |
|
988 | 988 | else: |
|
989 | 989 | ipdir_def = '_ipython' |
|
990 | 990 | home_dir = get_home_dir() |
|
991 | 991 | ipdir = os.path.abspath(os.environ.get('IPYTHONDIR', |
|
992 | 992 | os.path.join(home_dir, ipdir_def))) |
|
993 | 993 | return ipdir.decode(sys.getfilesystemencoding()) |
|
994 | 994 | |
|
995 | 995 | def get_security_dir(): |
|
996 | 996 | """Get the IPython security directory. |
|
997 | 997 | |
|
998 | 998 | This directory is the default location for all security related files, |
|
999 | 999 | including SSL/TLS certificates and FURL files. |
|
1000 | 1000 | |
|
1001 | 1001 | If the directory does not exist, it is created with 0700 permissions. |
|
1002 | 1002 | If it exists, permissions are set to 0700. |
|
1003 | 1003 | """ |
|
1004 | 1004 | security_dir = os.path.join(get_ipython_dir(), 'security') |
|
1005 | 1005 | if not os.path.isdir(security_dir): |
|
1006 | 1006 | os.mkdir(security_dir, 0700) |
|
1007 | 1007 | else: |
|
1008 | 1008 | os.chmod(security_dir, 0700) |
|
1009 | 1009 | return security_dir |
|
1010 | ||
|
1010 | ||
|
1011 | def get_log_dir(): | |
|
1012 | """Get the IPython log directory. | |
|
1013 | ||
|
1014 | If the log directory does not exist, it is created. | |
|
1015 | """ | |
|
1016 | log_dir = os.path.join(get_ipython_dir(), 'log') | |
|
1017 | if not os.path.isdir(log_dir): | |
|
1018 | os.mkdir(log_dir, 0777) | |
|
1019 | return log_dir | |
|
1020 | ||
|
1011 | 1021 | #**************************************************************************** |
|
1012 | 1022 | # strings and text |
|
1013 | 1023 | |
|
1014 | 1024 | class LSString(str): |
|
1015 | 1025 | """String derivative with a special access attributes. |
|
1016 | 1026 | |
|
1017 | 1027 | These are normal strings, but with the special attributes: |
|
1018 | 1028 | |
|
1019 | 1029 | .l (or .list) : value as list (split on newlines). |
|
1020 | 1030 | .n (or .nlstr): original value (the string itself). |
|
1021 | 1031 | .s (or .spstr): value as whitespace-separated string. |
|
1022 | 1032 | .p (or .paths): list of path objects |
|
1023 | 1033 | |
|
1024 | 1034 | Any values which require transformations are computed only once and |
|
1025 | 1035 | cached. |
|
1026 | 1036 | |
|
1027 | 1037 | Such strings are very useful to efficiently interact with the shell, which |
|
1028 | 1038 | typically only understands whitespace-separated options for commands.""" |
|
1029 | 1039 | |
|
1030 | 1040 | def get_list(self): |
|
1031 | 1041 | try: |
|
1032 | 1042 | return self.__list |
|
1033 | 1043 | except AttributeError: |
|
1034 | 1044 | self.__list = self.split('\n') |
|
1035 | 1045 | return self.__list |
|
1036 | 1046 | |
|
1037 | 1047 | l = list = property(get_list) |
|
1038 | 1048 | |
|
1039 | 1049 | def get_spstr(self): |
|
1040 | 1050 | try: |
|
1041 | 1051 | return self.__spstr |
|
1042 | 1052 | except AttributeError: |
|
1043 | 1053 | self.__spstr = self.replace('\n',' ') |
|
1044 | 1054 | return self.__spstr |
|
1045 | 1055 | |
|
1046 | 1056 | s = spstr = property(get_spstr) |
|
1047 | 1057 | |
|
1048 | 1058 | def get_nlstr(self): |
|
1049 | 1059 | return self |
|
1050 | 1060 | |
|
1051 | 1061 | n = nlstr = property(get_nlstr) |
|
1052 | 1062 | |
|
1053 | 1063 | def get_paths(self): |
|
1054 | 1064 | try: |
|
1055 | 1065 | return self.__paths |
|
1056 | 1066 | except AttributeError: |
|
1057 | 1067 | self.__paths = [path(p) for p in self.split('\n') if os.path.exists(p)] |
|
1058 | 1068 | return self.__paths |
|
1059 | 1069 | |
|
1060 | 1070 | p = paths = property(get_paths) |
|
1061 | 1071 | |
|
1062 | 1072 | def print_lsstring(arg): |
|
1063 | 1073 | """ Prettier (non-repr-like) and more informative printer for LSString """ |
|
1064 | 1074 | print "LSString (.p, .n, .l, .s available). Value:" |
|
1065 | 1075 | print arg |
|
1066 | 1076 | |
|
1067 | 1077 | print_lsstring = result_display.when_type(LSString)(print_lsstring) |
|
1068 | 1078 | |
|
1069 | 1079 | #---------------------------------------------------------------------------- |
|
1070 | 1080 | class SList(list): |
|
1071 | 1081 | """List derivative with a special access attributes. |
|
1072 | 1082 | |
|
1073 | 1083 | These are normal lists, but with the special attributes: |
|
1074 | 1084 | |
|
1075 | 1085 | .l (or .list) : value as list (the list itself). |
|
1076 | 1086 | .n (or .nlstr): value as a string, joined on newlines. |
|
1077 | 1087 | .s (or .spstr): value as a string, joined on spaces. |
|
1078 | 1088 | .p (or .paths): list of path objects |
|
1079 | 1089 | |
|
1080 | 1090 | Any values which require transformations are computed only once and |
|
1081 | 1091 | cached.""" |
|
1082 | 1092 | |
|
1083 | 1093 | def get_list(self): |
|
1084 | 1094 | return self |
|
1085 | 1095 | |
|
1086 | 1096 | l = list = property(get_list) |
|
1087 | 1097 | |
|
1088 | 1098 | def get_spstr(self): |
|
1089 | 1099 | try: |
|
1090 | 1100 | return self.__spstr |
|
1091 | 1101 | except AttributeError: |
|
1092 | 1102 | self.__spstr = ' '.join(self) |
|
1093 | 1103 | return self.__spstr |
|
1094 | 1104 | |
|
1095 | 1105 | s = spstr = property(get_spstr) |
|
1096 | 1106 | |
|
1097 | 1107 | def get_nlstr(self): |
|
1098 | 1108 | try: |
|
1099 | 1109 | return self.__nlstr |
|
1100 | 1110 | except AttributeError: |
|
1101 | 1111 | self.__nlstr = '\n'.join(self) |
|
1102 | 1112 | return self.__nlstr |
|
1103 | 1113 | |
|
1104 | 1114 | n = nlstr = property(get_nlstr) |
|
1105 | 1115 | |
|
1106 | 1116 | def get_paths(self): |
|
1107 | 1117 | try: |
|
1108 | 1118 | return self.__paths |
|
1109 | 1119 | except AttributeError: |
|
1110 | 1120 | self.__paths = [path(p) for p in self if os.path.exists(p)] |
|
1111 | 1121 | return self.__paths |
|
1112 | 1122 | |
|
1113 | 1123 | p = paths = property(get_paths) |
|
1114 | 1124 | |
|
1115 | 1125 | def grep(self, pattern, prune = False, field = None): |
|
1116 | 1126 | """ Return all strings matching 'pattern' (a regex or callable) |
|
1117 | 1127 | |
|
1118 | 1128 | This is case-insensitive. If prune is true, return all items |
|
1119 | 1129 | NOT matching the pattern. |
|
1120 | 1130 | |
|
1121 | 1131 | If field is specified, the match must occur in the specified |
|
1122 | 1132 | whitespace-separated field. |
|
1123 | 1133 | |
|
1124 | 1134 | Examples:: |
|
1125 | 1135 | |
|
1126 | 1136 | a.grep( lambda x: x.startswith('C') ) |
|
1127 | 1137 | a.grep('Cha.*log', prune=1) |
|
1128 | 1138 | a.grep('chm', field=-1) |
|
1129 | 1139 | """ |
|
1130 | 1140 | |
|
1131 | 1141 | def match_target(s): |
|
1132 | 1142 | if field is None: |
|
1133 | 1143 | return s |
|
1134 | 1144 | parts = s.split() |
|
1135 | 1145 | try: |
|
1136 | 1146 | tgt = parts[field] |
|
1137 | 1147 | return tgt |
|
1138 | 1148 | except IndexError: |
|
1139 | 1149 | return "" |
|
1140 | 1150 | |
|
1141 | 1151 | if isinstance(pattern, basestring): |
|
1142 | 1152 | pred = lambda x : re.search(pattern, x, re.IGNORECASE) |
|
1143 | 1153 | else: |
|
1144 | 1154 | pred = pattern |
|
1145 | 1155 | if not prune: |
|
1146 | 1156 | return SList([el for el in self if pred(match_target(el))]) |
|
1147 | 1157 | else: |
|
1148 | 1158 | return SList([el for el in self if not pred(match_target(el))]) |
|
1149 | 1159 | def fields(self, *fields): |
|
1150 | 1160 | """ Collect whitespace-separated fields from string list |
|
1151 | 1161 | |
|
1152 | 1162 | Allows quick awk-like usage of string lists. |
|
1153 | 1163 | |
|
1154 | 1164 | Example data (in var a, created by 'a = !ls -l'):: |
|
1155 | 1165 | -rwxrwxrwx 1 ville None 18 Dec 14 2006 ChangeLog |
|
1156 | 1166 | drwxrwxrwx+ 6 ville None 0 Oct 24 18:05 IPython |
|
1157 | 1167 | |
|
1158 | 1168 | a.fields(0) is ['-rwxrwxrwx', 'drwxrwxrwx+'] |
|
1159 | 1169 | a.fields(1,0) is ['1 -rwxrwxrwx', '6 drwxrwxrwx+'] |
|
1160 | 1170 | (note the joining by space). |
|
1161 | 1171 | a.fields(-1) is ['ChangeLog', 'IPython'] |
|
1162 | 1172 | |
|
1163 | 1173 | IndexErrors are ignored. |
|
1164 | 1174 | |
|
1165 | 1175 | Without args, fields() just split()'s the strings. |
|
1166 | 1176 | """ |
|
1167 | 1177 | if len(fields) == 0: |
|
1168 | 1178 | return [el.split() for el in self] |
|
1169 | 1179 | |
|
1170 | 1180 | res = SList() |
|
1171 | 1181 | for el in [f.split() for f in self]: |
|
1172 | 1182 | lineparts = [] |
|
1173 | 1183 | |
|
1174 | 1184 | for fd in fields: |
|
1175 | 1185 | try: |
|
1176 | 1186 | lineparts.append(el[fd]) |
|
1177 | 1187 | except IndexError: |
|
1178 | 1188 | pass |
|
1179 | 1189 | if lineparts: |
|
1180 | 1190 | res.append(" ".join(lineparts)) |
|
1181 | 1191 | |
|
1182 | 1192 | return res |
|
1183 | 1193 | def sort(self,field= None, nums = False): |
|
1184 | 1194 | """ sort by specified fields (see fields()) |
|
1185 | 1195 | |
|
1186 | 1196 | Example:: |
|
1187 | 1197 | a.sort(1, nums = True) |
|
1188 | 1198 | |
|
1189 | 1199 | Sorts a by second field, in numerical order (so that 21 > 3) |
|
1190 | 1200 | |
|
1191 | 1201 | """ |
|
1192 | 1202 | |
|
1193 | 1203 | #decorate, sort, undecorate |
|
1194 | 1204 | if field is not None: |
|
1195 | 1205 | dsu = [[SList([line]).fields(field), line] for line in self] |
|
1196 | 1206 | else: |
|
1197 | 1207 | dsu = [[line, line] for line in self] |
|
1198 | 1208 | if nums: |
|
1199 | 1209 | for i in range(len(dsu)): |
|
1200 | 1210 | numstr = "".join([ch for ch in dsu[i][0] if ch.isdigit()]) |
|
1201 | 1211 | try: |
|
1202 | 1212 | n = int(numstr) |
|
1203 | 1213 | except ValueError: |
|
1204 | 1214 | n = 0; |
|
1205 | 1215 | dsu[i][0] = n |
|
1206 | 1216 | |
|
1207 | 1217 | |
|
1208 | 1218 | dsu.sort() |
|
1209 | 1219 | return SList([t[1] for t in dsu]) |
|
1210 | 1220 | |
|
1211 | 1221 | def print_slist(arg): |
|
1212 | 1222 | """ Prettier (non-repr-like) and more informative printer for SList """ |
|
1213 | 1223 | print "SList (.p, .n, .l, .s, .grep(), .fields(), sort() available):" |
|
1214 | 1224 | if hasattr(arg, 'hideonce') and arg.hideonce: |
|
1215 | 1225 | arg.hideonce = False |
|
1216 | 1226 | return |
|
1217 | 1227 | |
|
1218 | 1228 | nlprint(arg) |
|
1219 | 1229 | |
|
1220 | 1230 | print_slist = result_display.when_type(SList)(print_slist) |
|
1221 | 1231 | |
|
1222 | 1232 | |
|
1223 | 1233 | |
|
1224 | 1234 | #---------------------------------------------------------------------------- |
|
1225 | 1235 | def esc_quotes(strng): |
|
1226 | 1236 | """Return the input string with single and double quotes escaped out""" |
|
1227 | 1237 | |
|
1228 | 1238 | return strng.replace('"','\\"').replace("'","\\'") |
|
1229 | 1239 | |
|
1230 | 1240 | #---------------------------------------------------------------------------- |
|
1231 | 1241 | def make_quoted_expr(s): |
|
1232 | 1242 | """Return string s in appropriate quotes, using raw string if possible. |
|
1233 | 1243 | |
|
1234 | 1244 | XXX - example removed because it caused encoding errors in documentation |
|
1235 | 1245 | generation. We need a new example that doesn't contain invalid chars. |
|
1236 | 1246 | |
|
1237 | 1247 | Note the use of raw string and padding at the end to allow trailing |
|
1238 | 1248 | backslash. |
|
1239 | 1249 | """ |
|
1240 | 1250 | |
|
1241 | 1251 | tail = '' |
|
1242 | 1252 | tailpadding = '' |
|
1243 | 1253 | raw = '' |
|
1244 | 1254 | if "\\" in s: |
|
1245 | 1255 | raw = 'r' |
|
1246 | 1256 | if s.endswith('\\'): |
|
1247 | 1257 | tail = '[:-1]' |
|
1248 | 1258 | tailpadding = '_' |
|
1249 | 1259 | if '"' not in s: |
|
1250 | 1260 | quote = '"' |
|
1251 | 1261 | elif "'" not in s: |
|
1252 | 1262 | quote = "'" |
|
1253 | 1263 | elif '"""' not in s and not s.endswith('"'): |
|
1254 | 1264 | quote = '"""' |
|
1255 | 1265 | elif "'''" not in s and not s.endswith("'"): |
|
1256 | 1266 | quote = "'''" |
|
1257 | 1267 | else: |
|
1258 | 1268 | # give up, backslash-escaped string will do |
|
1259 | 1269 | return '"%s"' % esc_quotes(s) |
|
1260 | 1270 | res = raw + quote + s + tailpadding + quote + tail |
|
1261 | 1271 | return res |
|
1262 | 1272 | |
|
1263 | 1273 | |
|
1264 | 1274 | #---------------------------------------------------------------------------- |
|
1265 | 1275 | def raw_input_multi(header='', ps1='==> ', ps2='..> ',terminate_str = '.'): |
|
1266 | 1276 | """Take multiple lines of input. |
|
1267 | 1277 | |
|
1268 | 1278 | A list with each line of input as a separate element is returned when a |
|
1269 | 1279 | termination string is entered (defaults to a single '.'). Input can also |
|
1270 | 1280 | terminate via EOF (^D in Unix, ^Z-RET in Windows). |
|
1271 | 1281 | |
|
1272 | 1282 | Lines of input which end in \\ are joined into single entries (and a |
|
1273 | 1283 | secondary continuation prompt is issued as long as the user terminates |
|
1274 | 1284 | lines with \\). This allows entering very long strings which are still |
|
1275 | 1285 | meant to be treated as single entities. |
|
1276 | 1286 | """ |
|
1277 | 1287 | |
|
1278 | 1288 | try: |
|
1279 | 1289 | if header: |
|
1280 | 1290 | header += '\n' |
|
1281 | 1291 | lines = [raw_input(header + ps1)] |
|
1282 | 1292 | except EOFError: |
|
1283 | 1293 | return [] |
|
1284 | 1294 | terminate = [terminate_str] |
|
1285 | 1295 | try: |
|
1286 | 1296 | while lines[-1:] != terminate: |
|
1287 | 1297 | new_line = raw_input(ps1) |
|
1288 | 1298 | while new_line.endswith('\\'): |
|
1289 | 1299 | new_line = new_line[:-1] + raw_input(ps2) |
|
1290 | 1300 | lines.append(new_line) |
|
1291 | 1301 | |
|
1292 | 1302 | return lines[:-1] # don't return the termination command |
|
1293 | 1303 | except EOFError: |
|
1294 | 1304 | |
|
1295 | 1305 | return lines |
|
1296 | 1306 | |
|
1297 | 1307 | #---------------------------------------------------------------------------- |
|
1298 | 1308 | def raw_input_ext(prompt='', ps2='... '): |
|
1299 | 1309 | """Similar to raw_input(), but accepts extended lines if input ends with \\.""" |
|
1300 | 1310 | |
|
1301 | 1311 | line = raw_input(prompt) |
|
1302 | 1312 | while line.endswith('\\'): |
|
1303 | 1313 | line = line[:-1] + raw_input(ps2) |
|
1304 | 1314 | return line |
|
1305 | 1315 | |
|
1306 | 1316 | #---------------------------------------------------------------------------- |
|
1307 | 1317 | def ask_yes_no(prompt,default=None): |
|
1308 | 1318 | """Asks a question and returns a boolean (y/n) answer. |
|
1309 | 1319 | |
|
1310 | 1320 | If default is given (one of 'y','n'), it is used if the user input is |
|
1311 | 1321 | empty. Otherwise the question is repeated until an answer is given. |
|
1312 | 1322 | |
|
1313 | 1323 | An EOF is treated as the default answer. If there is no default, an |
|
1314 | 1324 | exception is raised to prevent infinite loops. |
|
1315 | 1325 | |
|
1316 | 1326 | Valid answers are: y/yes/n/no (match is not case sensitive).""" |
|
1317 | 1327 | |
|
1318 | 1328 | answers = {'y':True,'n':False,'yes':True,'no':False} |
|
1319 | 1329 | ans = None |
|
1320 | 1330 | while ans not in answers.keys(): |
|
1321 | 1331 | try: |
|
1322 | 1332 | ans = raw_input(prompt+' ').lower() |
|
1323 | 1333 | if not ans: # response was an empty string |
|
1324 | 1334 | ans = default |
|
1325 | 1335 | except KeyboardInterrupt: |
|
1326 | 1336 | pass |
|
1327 | 1337 | except EOFError: |
|
1328 | 1338 | if default in answers.keys(): |
|
1329 | 1339 | ans = default |
|
1330 | 1340 | |
|
1331 | 1341 | else: |
|
1332 | 1342 | raise |
|
1333 | 1343 | |
|
1334 | 1344 | return answers[ans] |
|
1335 | 1345 | |
|
1336 | 1346 | #---------------------------------------------------------------------------- |
|
1337 | 1347 | def marquee(txt='',width=78,mark='*'): |
|
1338 | 1348 | """Return the input string centered in a 'marquee'.""" |
|
1339 | 1349 | if not txt: |
|
1340 | 1350 | return (mark*width)[:width] |
|
1341 | 1351 | nmark = (width-len(txt)-2)/len(mark)/2 |
|
1342 | 1352 | if nmark < 0: nmark =0 |
|
1343 | 1353 | marks = mark*nmark |
|
1344 | 1354 | return '%s %s %s' % (marks,txt,marks) |
|
1345 | 1355 | |
|
1346 | 1356 | #---------------------------------------------------------------------------- |
|
1347 | 1357 | class EvalDict: |
|
1348 | 1358 | """ |
|
1349 | 1359 | Emulate a dict which evaluates its contents in the caller's frame. |
|
1350 | 1360 | |
|
1351 | 1361 | Usage: |
|
1352 | 1362 | >>> number = 19 |
|
1353 | 1363 | |
|
1354 | 1364 | >>> text = "python" |
|
1355 | 1365 | |
|
1356 | 1366 | >>> print "%(text.capitalize())s %(number/9.0).1f rules!" % EvalDict() |
|
1357 | 1367 | Python 2.1 rules! |
|
1358 | 1368 | """ |
|
1359 | 1369 | |
|
1360 | 1370 | # This version is due to sismex01@hebmex.com on c.l.py, and is basically a |
|
1361 | 1371 | # modified (shorter) version of: |
|
1362 | 1372 | # http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/66018 by |
|
1363 | 1373 | # Skip Montanaro (skip@pobox.com). |
|
1364 | 1374 | |
|
1365 | 1375 | def __getitem__(self, name): |
|
1366 | 1376 | frame = sys._getframe(1) |
|
1367 | 1377 | return eval(name, frame.f_globals, frame.f_locals) |
|
1368 | 1378 | |
|
1369 | 1379 | EvalString = EvalDict # for backwards compatibility |
|
1370 | 1380 | #---------------------------------------------------------------------------- |
|
1371 | 1381 | def qw(words,flat=0,sep=None,maxsplit=-1): |
|
1372 | 1382 | """Similar to Perl's qw() operator, but with some more options. |
|
1373 | 1383 | |
|
1374 | 1384 | qw(words,flat=0,sep=' ',maxsplit=-1) -> words.split(sep,maxsplit) |
|
1375 | 1385 | |
|
1376 | 1386 | words can also be a list itself, and with flat=1, the output will be |
|
1377 | 1387 | recursively flattened. |
|
1378 | 1388 | |
|
1379 | 1389 | Examples: |
|
1380 | 1390 | |
|
1381 | 1391 | >>> qw('1 2') |
|
1382 | 1392 | ['1', '2'] |
|
1383 | 1393 | |
|
1384 | 1394 | >>> qw(['a b','1 2',['m n','p q']]) |
|
1385 | 1395 | [['a', 'b'], ['1', '2'], [['m', 'n'], ['p', 'q']]] |
|
1386 | 1396 | |
|
1387 | 1397 | >>> qw(['a b','1 2',['m n','p q']],flat=1) |
|
1388 | 1398 | ['a', 'b', '1', '2', 'm', 'n', 'p', 'q'] |
|
1389 | 1399 | """ |
|
1390 | 1400 | |
|
1391 | 1401 | if type(words) in StringTypes: |
|
1392 | 1402 | return [word.strip() for word in words.split(sep,maxsplit) |
|
1393 | 1403 | if word and not word.isspace() ] |
|
1394 | 1404 | if flat: |
|
1395 | 1405 | return flatten(map(qw,words,[1]*len(words))) |
|
1396 | 1406 | return map(qw,words) |
|
1397 | 1407 | |
|
1398 | 1408 | #---------------------------------------------------------------------------- |
|
1399 | 1409 | def qwflat(words,sep=None,maxsplit=-1): |
|
1400 | 1410 | """Calls qw(words) in flat mode. It's just a convenient shorthand.""" |
|
1401 | 1411 | return qw(words,1,sep,maxsplit) |
|
1402 | 1412 | |
|
1403 | 1413 | #---------------------------------------------------------------------------- |
|
1404 | 1414 | def qw_lol(indata): |
|
1405 | 1415 | """qw_lol('a b') -> [['a','b']], |
|
1406 | 1416 | otherwise it's just a call to qw(). |
|
1407 | 1417 | |
|
1408 | 1418 | We need this to make sure the modules_some keys *always* end up as a |
|
1409 | 1419 | list of lists.""" |
|
1410 | 1420 | |
|
1411 | 1421 | if type(indata) in StringTypes: |
|
1412 | 1422 | return [qw(indata)] |
|
1413 | 1423 | else: |
|
1414 | 1424 | return qw(indata) |
|
1415 | 1425 | |
|
1416 | 1426 | #----------------------------------------------------------------------------- |
|
1417 | 1427 | def list_strings(arg): |
|
1418 | 1428 | """Always return a list of strings, given a string or list of strings |
|
1419 | 1429 | as input.""" |
|
1420 | 1430 | |
|
1421 | 1431 | if type(arg) in StringTypes: return [arg] |
|
1422 | 1432 | else: return arg |
|
1423 | 1433 | |
|
1424 | 1434 | #---------------------------------------------------------------------------- |
|
1425 | 1435 | def grep(pat,list,case=1): |
|
1426 | 1436 | """Simple minded grep-like function. |
|
1427 | 1437 | grep(pat,list) returns occurrences of pat in list, None on failure. |
|
1428 | 1438 | |
|
1429 | 1439 | It only does simple string matching, with no support for regexps. Use the |
|
1430 | 1440 | option case=0 for case-insensitive matching.""" |
|
1431 | 1441 | |
|
1432 | 1442 | # This is pretty crude. At least it should implement copying only references |
|
1433 | 1443 | # to the original data in case it's big. Now it copies the data for output. |
|
1434 | 1444 | out=[] |
|
1435 | 1445 | if case: |
|
1436 | 1446 | for term in list: |
|
1437 | 1447 | if term.find(pat)>-1: out.append(term) |
|
1438 | 1448 | else: |
|
1439 | 1449 | lpat=pat.lower() |
|
1440 | 1450 | for term in list: |
|
1441 | 1451 | if term.lower().find(lpat)>-1: out.append(term) |
|
1442 | 1452 | |
|
1443 | 1453 | if len(out): return out |
|
1444 | 1454 | else: return None |
|
1445 | 1455 | |
|
1446 | 1456 | #---------------------------------------------------------------------------- |
|
1447 | 1457 | def dgrep(pat,*opts): |
|
1448 | 1458 | """Return grep() on dir()+dir(__builtins__). |
|
1449 | 1459 | |
|
1450 | 1460 | A very common use of grep() when working interactively.""" |
|
1451 | 1461 | |
|
1452 | 1462 | return grep(pat,dir(__main__)+dir(__main__.__builtins__),*opts) |
|
1453 | 1463 | |
|
1454 | 1464 | #---------------------------------------------------------------------------- |
|
1455 | 1465 | def idgrep(pat): |
|
1456 | 1466 | """Case-insensitive dgrep()""" |
|
1457 | 1467 | |
|
1458 | 1468 | return dgrep(pat,0) |
|
1459 | 1469 | |
|
1460 | 1470 | #---------------------------------------------------------------------------- |
|
1461 | 1471 | def igrep(pat,list): |
|
1462 | 1472 | """Synonym for case-insensitive grep.""" |
|
1463 | 1473 | |
|
1464 | 1474 | return grep(pat,list,case=0) |
|
1465 | 1475 | |
|
1466 | 1476 | #---------------------------------------------------------------------------- |
|
1467 | 1477 | def indent(str,nspaces=4,ntabs=0): |
|
1468 | 1478 | """Indent a string a given number of spaces or tabstops. |
|
1469 | 1479 | |
|
1470 | 1480 | indent(str,nspaces=4,ntabs=0) -> indent str by ntabs+nspaces. |
|
1471 | 1481 | """ |
|
1472 | 1482 | if str is None: |
|
1473 | 1483 | return |
|
1474 | 1484 | ind = '\t'*ntabs+' '*nspaces |
|
1475 | 1485 | outstr = '%s%s' % (ind,str.replace(os.linesep,os.linesep+ind)) |
|
1476 | 1486 | if outstr.endswith(os.linesep+ind): |
|
1477 | 1487 | return outstr[:-len(ind)] |
|
1478 | 1488 | else: |
|
1479 | 1489 | return outstr |
|
1480 | 1490 | |
|
1481 | 1491 | #----------------------------------------------------------------------------- |
|
1482 | 1492 | def native_line_ends(filename,backup=1): |
|
1483 | 1493 | """Convert (in-place) a file to line-ends native to the current OS. |
|
1484 | 1494 | |
|
1485 | 1495 | If the optional backup argument is given as false, no backup of the |
|
1486 | 1496 | original file is left. """ |
|
1487 | 1497 | |
|
1488 | 1498 | backup_suffixes = {'posix':'~','dos':'.bak','nt':'.bak','mac':'.bak'} |
|
1489 | 1499 | |
|
1490 | 1500 | bak_filename = filename + backup_suffixes[os.name] |
|
1491 | 1501 | |
|
1492 | 1502 | original = open(filename).read() |
|
1493 | 1503 | shutil.copy2(filename,bak_filename) |
|
1494 | 1504 | try: |
|
1495 | 1505 | new = open(filename,'wb') |
|
1496 | 1506 | new.write(os.linesep.join(original.splitlines())) |
|
1497 | 1507 | new.write(os.linesep) # ALWAYS put an eol at the end of the file |
|
1498 | 1508 | new.close() |
|
1499 | 1509 | except: |
|
1500 | 1510 | os.rename(bak_filename,filename) |
|
1501 | 1511 | if not backup: |
|
1502 | 1512 | try: |
|
1503 | 1513 | os.remove(bak_filename) |
|
1504 | 1514 | except: |
|
1505 | 1515 | pass |
|
1506 | 1516 | |
|
1507 | 1517 | #---------------------------------------------------------------------------- |
|
1508 | 1518 | def get_pager_cmd(pager_cmd = None): |
|
1509 | 1519 | """Return a pager command. |
|
1510 | 1520 | |
|
1511 | 1521 | Makes some attempts at finding an OS-correct one.""" |
|
1512 | 1522 | |
|
1513 | 1523 | if os.name == 'posix': |
|
1514 | 1524 | default_pager_cmd = 'less -r' # -r for color control sequences |
|
1515 | 1525 | elif os.name in ['nt','dos']: |
|
1516 | 1526 | default_pager_cmd = 'type' |
|
1517 | 1527 | |
|
1518 | 1528 | if pager_cmd is None: |
|
1519 | 1529 | try: |
|
1520 | 1530 | pager_cmd = os.environ['PAGER'] |
|
1521 | 1531 | except: |
|
1522 | 1532 | pager_cmd = default_pager_cmd |
|
1523 | 1533 | return pager_cmd |
|
1524 | 1534 | |
|
1525 | 1535 | #----------------------------------------------------------------------------- |
|
1526 | 1536 | def get_pager_start(pager,start): |
|
1527 | 1537 | """Return the string for paging files with an offset. |
|
1528 | 1538 | |
|
1529 | 1539 | This is the '+N' argument which less and more (under Unix) accept. |
|
1530 | 1540 | """ |
|
1531 | 1541 | |
|
1532 | 1542 | if pager in ['less','more']: |
|
1533 | 1543 | if start: |
|
1534 | 1544 | start_string = '+' + str(start) |
|
1535 | 1545 | else: |
|
1536 | 1546 | start_string = '' |
|
1537 | 1547 | else: |
|
1538 | 1548 | start_string = '' |
|
1539 | 1549 | return start_string |
|
1540 | 1550 | |
|
1541 | 1551 | #---------------------------------------------------------------------------- |
|
1542 | 1552 | # (X)emacs on W32 doesn't like to be bypassed with msvcrt.getch() |
|
1543 | 1553 | if os.name == 'nt' and os.environ.get('TERM','dumb') != 'emacs': |
|
1544 | 1554 | import msvcrt |
|
1545 | 1555 | def page_more(): |
|
1546 | 1556 | """ Smart pausing between pages |
|
1547 | 1557 | |
|
1548 | 1558 | @return: True if need print more lines, False if quit |
|
1549 | 1559 | """ |
|
1550 | 1560 | Term.cout.write('---Return to continue, q to quit--- ') |
|
1551 | 1561 | ans = msvcrt.getch() |
|
1552 | 1562 | if ans in ("q", "Q"): |
|
1553 | 1563 | result = False |
|
1554 | 1564 | else: |
|
1555 | 1565 | result = True |
|
1556 | 1566 | Term.cout.write("\b"*37 + " "*37 + "\b"*37) |
|
1557 | 1567 | return result |
|
1558 | 1568 | else: |
|
1559 | 1569 | def page_more(): |
|
1560 | 1570 | ans = raw_input('---Return to continue, q to quit--- ') |
|
1561 | 1571 | if ans.lower().startswith('q'): |
|
1562 | 1572 | return False |
|
1563 | 1573 | else: |
|
1564 | 1574 | return True |
|
1565 | 1575 | |
|
1566 | 1576 | esc_re = re.compile(r"(\x1b[^m]+m)") |
|
1567 | 1577 | |
|
1568 | 1578 | def page_dumb(strng,start=0,screen_lines=25): |
|
1569 | 1579 | """Very dumb 'pager' in Python, for when nothing else works. |
|
1570 | 1580 | |
|
1571 | 1581 | Only moves forward, same interface as page(), except for pager_cmd and |
|
1572 | 1582 | mode.""" |
|
1573 | 1583 | |
|
1574 | 1584 | out_ln = strng.splitlines()[start:] |
|
1575 | 1585 | screens = chop(out_ln,screen_lines-1) |
|
1576 | 1586 | if len(screens) == 1: |
|
1577 | 1587 | print >>Term.cout, os.linesep.join(screens[0]) |
|
1578 | 1588 | else: |
|
1579 | 1589 | last_escape = "" |
|
1580 | 1590 | for scr in screens[0:-1]: |
|
1581 | 1591 | hunk = os.linesep.join(scr) |
|
1582 | 1592 | print >>Term.cout, last_escape + hunk |
|
1583 | 1593 | if not page_more(): |
|
1584 | 1594 | return |
|
1585 | 1595 | esc_list = esc_re.findall(hunk) |
|
1586 | 1596 | if len(esc_list) > 0: |
|
1587 | 1597 | last_escape = esc_list[-1] |
|
1588 | 1598 | print >>Term.cout, last_escape + os.linesep.join(screens[-1]) |
|
1589 | 1599 | |
|
1590 | 1600 | #---------------------------------------------------------------------------- |
|
1591 | 1601 | def page(strng,start=0,screen_lines=0,pager_cmd = None): |
|
1592 | 1602 | """Print a string, piping through a pager after a certain length. |
|
1593 | 1603 | |
|
1594 | 1604 | The screen_lines parameter specifies the number of *usable* lines of your |
|
1595 | 1605 | terminal screen (total lines minus lines you need to reserve to show other |
|
1596 | 1606 | information). |
|
1597 | 1607 | |
|
1598 | 1608 | If you set screen_lines to a number <=0, page() will try to auto-determine |
|
1599 | 1609 | your screen size and will only use up to (screen_size+screen_lines) for |
|
1600 | 1610 | printing, paging after that. That is, if you want auto-detection but need |
|
1601 | 1611 | to reserve the bottom 3 lines of the screen, use screen_lines = -3, and for |
|
1602 | 1612 | auto-detection without any lines reserved simply use screen_lines = 0. |
|
1603 | 1613 | |
|
1604 | 1614 | If a string won't fit in the allowed lines, it is sent through the |
|
1605 | 1615 | specified pager command. If none given, look for PAGER in the environment, |
|
1606 | 1616 | and ultimately default to less. |
|
1607 | 1617 | |
|
1608 | 1618 | If no system pager works, the string is sent through a 'dumb pager' |
|
1609 | 1619 | written in python, very simplistic. |
|
1610 | 1620 | """ |
|
1611 | 1621 | |
|
1612 | 1622 | # Some routines may auto-compute start offsets incorrectly and pass a |
|
1613 | 1623 | # negative value. Offset to 0 for robustness. |
|
1614 | 1624 | start = max(0,start) |
|
1615 | 1625 | |
|
1616 | 1626 | # first, try the hook |
|
1617 | 1627 | ip = IPython.ipapi.get() |
|
1618 | 1628 | if ip: |
|
1619 | 1629 | try: |
|
1620 | 1630 | ip.IP.hooks.show_in_pager(strng) |
|
1621 | 1631 | return |
|
1622 | 1632 | except IPython.ipapi.TryNext: |
|
1623 | 1633 | pass |
|
1624 | 1634 | |
|
1625 | 1635 | # Ugly kludge, but calling curses.initscr() flat out crashes in emacs |
|
1626 | 1636 | TERM = os.environ.get('TERM','dumb') |
|
1627 | 1637 | if TERM in ['dumb','emacs'] and os.name != 'nt': |
|
1628 | 1638 | print strng |
|
1629 | 1639 | return |
|
1630 | 1640 | # chop off the topmost part of the string we don't want to see |
|
1631 | 1641 | str_lines = strng.split(os.linesep)[start:] |
|
1632 | 1642 | str_toprint = os.linesep.join(str_lines) |
|
1633 | 1643 | num_newlines = len(str_lines) |
|
1634 | 1644 | len_str = len(str_toprint) |
|
1635 | 1645 | |
|
1636 | 1646 | # Dumb heuristics to guesstimate number of on-screen lines the string |
|
1637 | 1647 | # takes. Very basic, but good enough for docstrings in reasonable |
|
1638 | 1648 | # terminals. If someone later feels like refining it, it's not hard. |
|
1639 | 1649 | numlines = max(num_newlines,int(len_str/80)+1) |
|
1640 | 1650 | |
|
1641 | 1651 | if os.name == "nt": |
|
1642 | 1652 | screen_lines_def = get_console_size(defaulty=25)[1] |
|
1643 | 1653 | else: |
|
1644 | 1654 | screen_lines_def = 25 # default value if we can't auto-determine |
|
1645 | 1655 | |
|
1646 | 1656 | # auto-determine screen size |
|
1647 | 1657 | if screen_lines <= 0: |
|
1648 | 1658 | if TERM=='xterm': |
|
1649 | 1659 | use_curses = USE_CURSES |
|
1650 | 1660 | else: |
|
1651 | 1661 | # curses causes problems on many terminals other than xterm. |
|
1652 | 1662 | use_curses = False |
|
1653 | 1663 | if use_curses: |
|
1654 | 1664 | # There is a bug in curses, where *sometimes* it fails to properly |
|
1655 | 1665 | # initialize, and then after the endwin() call is made, the |
|
1656 | 1666 | # terminal is left in an unusable state. Rather than trying to |
|
1657 | 1667 | # check everytime for this (by requesting and comparing termios |
|
1658 | 1668 | # flags each time), we just save the initial terminal state and |
|
1659 | 1669 | # unconditionally reset it every time. It's cheaper than making |
|
1660 | 1670 | # the checks. |
|
1661 | 1671 | term_flags = termios.tcgetattr(sys.stdout) |
|
1662 | 1672 | scr = curses.initscr() |
|
1663 | 1673 | screen_lines_real,screen_cols = scr.getmaxyx() |
|
1664 | 1674 | curses.endwin() |
|
1665 | 1675 | # Restore terminal state in case endwin() didn't. |
|
1666 | 1676 | termios.tcsetattr(sys.stdout,termios.TCSANOW,term_flags) |
|
1667 | 1677 | # Now we have what we needed: the screen size in rows/columns |
|
1668 | 1678 | screen_lines += screen_lines_real |
|
1669 | 1679 | #print '***Screen size:',screen_lines_real,'lines x',\ |
|
1670 | 1680 | #screen_cols,'columns.' # dbg |
|
1671 | 1681 | else: |
|
1672 | 1682 | screen_lines += screen_lines_def |
|
1673 | 1683 | |
|
1674 | 1684 | #print 'numlines',numlines,'screenlines',screen_lines # dbg |
|
1675 | 1685 | if numlines <= screen_lines : |
|
1676 | 1686 | #print '*** normal print' # dbg |
|
1677 | 1687 | print >>Term.cout, str_toprint |
|
1678 | 1688 | else: |
|
1679 | 1689 | # Try to open pager and default to internal one if that fails. |
|
1680 | 1690 | # All failure modes are tagged as 'retval=1', to match the return |
|
1681 | 1691 | # value of a failed system command. If any intermediate attempt |
|
1682 | 1692 | # sets retval to 1, at the end we resort to our own page_dumb() pager. |
|
1683 | 1693 | pager_cmd = get_pager_cmd(pager_cmd) |
|
1684 | 1694 | pager_cmd += ' ' + get_pager_start(pager_cmd,start) |
|
1685 | 1695 | if os.name == 'nt': |
|
1686 | 1696 | if pager_cmd.startswith('type'): |
|
1687 | 1697 | # The default WinXP 'type' command is failing on complex strings. |
|
1688 | 1698 | retval = 1 |
|
1689 | 1699 | else: |
|
1690 | 1700 | tmpname = tempfile.mktemp('.txt') |
|
1691 | 1701 | tmpfile = file(tmpname,'wt') |
|
1692 | 1702 | tmpfile.write(strng) |
|
1693 | 1703 | tmpfile.close() |
|
1694 | 1704 | cmd = "%s < %s" % (pager_cmd,tmpname) |
|
1695 | 1705 | if os.system(cmd): |
|
1696 | 1706 | retval = 1 |
|
1697 | 1707 | else: |
|
1698 | 1708 | retval = None |
|
1699 | 1709 | os.remove(tmpname) |
|
1700 | 1710 | else: |
|
1701 | 1711 | try: |
|
1702 | 1712 | retval = None |
|
1703 | 1713 | # if I use popen4, things hang. No idea why. |
|
1704 | 1714 | #pager,shell_out = os.popen4(pager_cmd) |
|
1705 | 1715 | pager = os.popen(pager_cmd,'w') |
|
1706 | 1716 | pager.write(strng) |
|
1707 | 1717 | pager.close() |
|
1708 | 1718 | retval = pager.close() # success returns None |
|
1709 | 1719 | except IOError,msg: # broken pipe when user quits |
|
1710 | 1720 | if msg.args == (32,'Broken pipe'): |
|
1711 | 1721 | retval = None |
|
1712 | 1722 | else: |
|
1713 | 1723 | retval = 1 |
|
1714 | 1724 | except OSError: |
|
1715 | 1725 | # Other strange problems, sometimes seen in Win2k/cygwin |
|
1716 | 1726 | retval = 1 |
|
1717 | 1727 | if retval is not None: |
|
1718 | 1728 | page_dumb(strng,screen_lines=screen_lines) |
|
1719 | 1729 | |
|
1720 | 1730 | #---------------------------------------------------------------------------- |
|
1721 | 1731 | def page_file(fname,start = 0, pager_cmd = None): |
|
1722 | 1732 | """Page a file, using an optional pager command and starting line. |
|
1723 | 1733 | """ |
|
1724 | 1734 | |
|
1725 | 1735 | pager_cmd = get_pager_cmd(pager_cmd) |
|
1726 | 1736 | pager_cmd += ' ' + get_pager_start(pager_cmd,start) |
|
1727 | 1737 | |
|
1728 | 1738 | try: |
|
1729 | 1739 | if os.environ['TERM'] in ['emacs','dumb']: |
|
1730 | 1740 | raise EnvironmentError |
|
1731 | 1741 | xsys(pager_cmd + ' ' + fname) |
|
1732 | 1742 | except: |
|
1733 | 1743 | try: |
|
1734 | 1744 | if start > 0: |
|
1735 | 1745 | start -= 1 |
|
1736 | 1746 | page(open(fname).read(),start) |
|
1737 | 1747 | except: |
|
1738 | 1748 | print 'Unable to show file',`fname` |
|
1739 | 1749 | |
|
1740 | 1750 | |
|
1741 | 1751 | #---------------------------------------------------------------------------- |
|
1742 | 1752 | def snip_print(str,width = 75,print_full = 0,header = ''): |
|
1743 | 1753 | """Print a string snipping the midsection to fit in width. |
|
1744 | 1754 | |
|
1745 | 1755 | print_full: mode control: |
|
1746 | 1756 | - 0: only snip long strings |
|
1747 | 1757 | - 1: send to page() directly. |
|
1748 | 1758 | - 2: snip long strings and ask for full length viewing with page() |
|
1749 | 1759 | Return 1 if snipping was necessary, 0 otherwise.""" |
|
1750 | 1760 | |
|
1751 | 1761 | if print_full == 1: |
|
1752 | 1762 | page(header+str) |
|
1753 | 1763 | return 0 |
|
1754 | 1764 | |
|
1755 | 1765 | print header, |
|
1756 | 1766 | if len(str) < width: |
|
1757 | 1767 | print str |
|
1758 | 1768 | snip = 0 |
|
1759 | 1769 | else: |
|
1760 | 1770 | whalf = int((width -5)/2) |
|
1761 | 1771 | print str[:whalf] + ' <...> ' + str[-whalf:] |
|
1762 | 1772 | snip = 1 |
|
1763 | 1773 | if snip and print_full == 2: |
|
1764 | 1774 | if raw_input(header+' Snipped. View (y/n)? [N]').lower() == 'y': |
|
1765 | 1775 | page(str) |
|
1766 | 1776 | return snip |
|
1767 | 1777 | |
|
1768 | 1778 | #**************************************************************************** |
|
1769 | 1779 | # lists, dicts and structures |
|
1770 | 1780 | |
|
1771 | 1781 | def belong(candidates,checklist): |
|
1772 | 1782 | """Check whether a list of items appear in a given list of options. |
|
1773 | 1783 | |
|
1774 | 1784 | Returns a list of 1 and 0, one for each candidate given.""" |
|
1775 | 1785 | |
|
1776 | 1786 | return [x in checklist for x in candidates] |
|
1777 | 1787 | |
|
1778 | 1788 | #---------------------------------------------------------------------------- |
|
1779 | 1789 | def uniq_stable(elems): |
|
1780 | 1790 | """uniq_stable(elems) -> list |
|
1781 | 1791 | |
|
1782 | 1792 | Return from an iterable, a list of all the unique elements in the input, |
|
1783 | 1793 | but maintaining the order in which they first appear. |
|
1784 | 1794 | |
|
1785 | 1795 | A naive solution to this problem which just makes a dictionary with the |
|
1786 | 1796 | elements as keys fails to respect the stability condition, since |
|
1787 | 1797 | dictionaries are unsorted by nature. |
|
1788 | 1798 | |
|
1789 | 1799 | Note: All elements in the input must be valid dictionary keys for this |
|
1790 | 1800 | routine to work, as it internally uses a dictionary for efficiency |
|
1791 | 1801 | reasons.""" |
|
1792 | 1802 | |
|
1793 | 1803 | unique = [] |
|
1794 | 1804 | unique_dict = {} |
|
1795 | 1805 | for nn in elems: |
|
1796 | 1806 | if nn not in unique_dict: |
|
1797 | 1807 | unique.append(nn) |
|
1798 | 1808 | unique_dict[nn] = None |
|
1799 | 1809 | return unique |
|
1800 | 1810 | |
|
1801 | 1811 | #---------------------------------------------------------------------------- |
|
1802 | 1812 | class NLprinter: |
|
1803 | 1813 | """Print an arbitrarily nested list, indicating index numbers. |
|
1804 | 1814 | |
|
1805 | 1815 | An instance of this class called nlprint is available and callable as a |
|
1806 | 1816 | function. |
|
1807 | 1817 | |
|
1808 | 1818 | nlprint(list,indent=' ',sep=': ') -> prints indenting each level by 'indent' |
|
1809 | 1819 | and using 'sep' to separate the index from the value. """ |
|
1810 | 1820 | |
|
1811 | 1821 | def __init__(self): |
|
1812 | 1822 | self.depth = 0 |
|
1813 | 1823 | |
|
1814 | 1824 | def __call__(self,lst,pos='',**kw): |
|
1815 | 1825 | """Prints the nested list numbering levels.""" |
|
1816 | 1826 | kw.setdefault('indent',' ') |
|
1817 | 1827 | kw.setdefault('sep',': ') |
|
1818 | 1828 | kw.setdefault('start',0) |
|
1819 | 1829 | kw.setdefault('stop',len(lst)) |
|
1820 | 1830 | # we need to remove start and stop from kw so they don't propagate |
|
1821 | 1831 | # into a recursive call for a nested list. |
|
1822 | 1832 | start = kw['start']; del kw['start'] |
|
1823 | 1833 | stop = kw['stop']; del kw['stop'] |
|
1824 | 1834 | if self.depth == 0 and 'header' in kw.keys(): |
|
1825 | 1835 | print kw['header'] |
|
1826 | 1836 | |
|
1827 | 1837 | for idx in range(start,stop): |
|
1828 | 1838 | elem = lst[idx] |
|
1829 | 1839 | if type(elem)==type([]): |
|
1830 | 1840 | self.depth += 1 |
|
1831 | 1841 | self.__call__(elem,itpl('$pos$idx,'),**kw) |
|
1832 | 1842 | self.depth -= 1 |
|
1833 | 1843 | else: |
|
1834 | 1844 | printpl(kw['indent']*self.depth+'$pos$idx$kw["sep"]$elem') |
|
1835 | 1845 | |
|
1836 | 1846 | nlprint = NLprinter() |
|
1837 | 1847 | #---------------------------------------------------------------------------- |
|
1838 | 1848 | def all_belong(candidates,checklist): |
|
1839 | 1849 | """Check whether a list of items ALL appear in a given list of options. |
|
1840 | 1850 | |
|
1841 | 1851 | Returns a single 1 or 0 value.""" |
|
1842 | 1852 | |
|
1843 | 1853 | return 1-(0 in [x in checklist for x in candidates]) |
|
1844 | 1854 | |
|
1845 | 1855 | #---------------------------------------------------------------------------- |
|
1846 | 1856 | def sort_compare(lst1,lst2,inplace = 1): |
|
1847 | 1857 | """Sort and compare two lists. |
|
1848 | 1858 | |
|
1849 | 1859 | By default it does it in place, thus modifying the lists. Use inplace = 0 |
|
1850 | 1860 | to avoid that (at the cost of temporary copy creation).""" |
|
1851 | 1861 | if not inplace: |
|
1852 | 1862 | lst1 = lst1[:] |
|
1853 | 1863 | lst2 = lst2[:] |
|
1854 | 1864 | lst1.sort(); lst2.sort() |
|
1855 | 1865 | return lst1 == lst2 |
|
1856 | 1866 | |
|
1857 | 1867 | #---------------------------------------------------------------------------- |
|
1858 | 1868 | def list2dict(lst): |
|
1859 | 1869 | """Takes a list of (key,value) pairs and turns it into a dict.""" |
|
1860 | 1870 | |
|
1861 | 1871 | dic = {} |
|
1862 | 1872 | for k,v in lst: dic[k] = v |
|
1863 | 1873 | return dic |
|
1864 | 1874 | |
|
1865 | 1875 | #---------------------------------------------------------------------------- |
|
1866 | 1876 | def list2dict2(lst,default=''): |
|
1867 | 1877 | """Takes a list and turns it into a dict. |
|
1868 | 1878 | Much slower than list2dict, but more versatile. This version can take |
|
1869 | 1879 | lists with sublists of arbitrary length (including sclars).""" |
|
1870 | 1880 | |
|
1871 | 1881 | dic = {} |
|
1872 | 1882 | for elem in lst: |
|
1873 | 1883 | if type(elem) in (types.ListType,types.TupleType): |
|
1874 | 1884 | size = len(elem) |
|
1875 | 1885 | if size == 0: |
|
1876 | 1886 | pass |
|
1877 | 1887 | elif size == 1: |
|
1878 | 1888 | dic[elem] = default |
|
1879 | 1889 | else: |
|
1880 | 1890 | k,v = elem[0], elem[1:] |
|
1881 | 1891 | if len(v) == 1: v = v[0] |
|
1882 | 1892 | dic[k] = v |
|
1883 | 1893 | else: |
|
1884 | 1894 | dic[elem] = default |
|
1885 | 1895 | return dic |
|
1886 | 1896 | |
|
1887 | 1897 | #---------------------------------------------------------------------------- |
|
1888 | 1898 | def flatten(seq): |
|
1889 | 1899 | """Flatten a list of lists (NOT recursive, only works for 2d lists).""" |
|
1890 | 1900 | |
|
1891 | 1901 | return [x for subseq in seq for x in subseq] |
|
1892 | 1902 | |
|
1893 | 1903 | #---------------------------------------------------------------------------- |
|
1894 | 1904 | def get_slice(seq,start=0,stop=None,step=1): |
|
1895 | 1905 | """Get a slice of a sequence with variable step. Specify start,stop,step.""" |
|
1896 | 1906 | if stop == None: |
|
1897 | 1907 | stop = len(seq) |
|
1898 | 1908 | item = lambda i: seq[i] |
|
1899 | 1909 | return map(item,xrange(start,stop,step)) |
|
1900 | 1910 | |
|
1901 | 1911 | #---------------------------------------------------------------------------- |
|
1902 | 1912 | def chop(seq,size): |
|
1903 | 1913 | """Chop a sequence into chunks of the given size.""" |
|
1904 | 1914 | chunk = lambda i: seq[i:i+size] |
|
1905 | 1915 | return map(chunk,xrange(0,len(seq),size)) |
|
1906 | 1916 | |
|
1907 | 1917 | #---------------------------------------------------------------------------- |
|
1908 | 1918 | # with is a keyword as of python 2.5, so this function is renamed to withobj |
|
1909 | 1919 | # from its old 'with' name. |
|
1910 | 1920 | def with_obj(object, **args): |
|
1911 | 1921 | """Set multiple attributes for an object, similar to Pascal's with. |
|
1912 | 1922 | |
|
1913 | 1923 | Example: |
|
1914 | 1924 | with_obj(jim, |
|
1915 | 1925 | born = 1960, |
|
1916 | 1926 | haircolour = 'Brown', |
|
1917 | 1927 | eyecolour = 'Green') |
|
1918 | 1928 | |
|
1919 | 1929 | Credit: Greg Ewing, in |
|
1920 | 1930 | http://mail.python.org/pipermail/python-list/2001-May/040703.html. |
|
1921 | 1931 | |
|
1922 | 1932 | NOTE: up until IPython 0.7.2, this was called simply 'with', but 'with' |
|
1923 | 1933 | has become a keyword for Python 2.5, so we had to rename it.""" |
|
1924 | 1934 | |
|
1925 | 1935 | object.__dict__.update(args) |
|
1926 | 1936 | |
|
1927 | 1937 | #---------------------------------------------------------------------------- |
|
1928 | 1938 | def setattr_list(obj,alist,nspace = None): |
|
1929 | 1939 | """Set a list of attributes for an object taken from a namespace. |
|
1930 | 1940 | |
|
1931 | 1941 | setattr_list(obj,alist,nspace) -> sets in obj all the attributes listed in |
|
1932 | 1942 | alist with their values taken from nspace, which must be a dict (something |
|
1933 | 1943 | like locals() will often do) If nspace isn't given, locals() of the |
|
1934 | 1944 | *caller* is used, so in most cases you can omit it. |
|
1935 | 1945 | |
|
1936 | 1946 | Note that alist can be given as a string, which will be automatically |
|
1937 | 1947 | split into a list on whitespace. If given as a list, it must be a list of |
|
1938 | 1948 | *strings* (the variable names themselves), not of variables.""" |
|
1939 | 1949 | |
|
1940 | 1950 | # this grabs the local variables from the *previous* call frame -- that is |
|
1941 | 1951 | # the locals from the function that called setattr_list(). |
|
1942 | 1952 | # - snipped from weave.inline() |
|
1943 | 1953 | if nspace is None: |
|
1944 | 1954 | call_frame = sys._getframe().f_back |
|
1945 | 1955 | nspace = call_frame.f_locals |
|
1946 | 1956 | |
|
1947 | 1957 | if type(alist) in StringTypes: |
|
1948 | 1958 | alist = alist.split() |
|
1949 | 1959 | for attr in alist: |
|
1950 | 1960 | val = eval(attr,nspace) |
|
1951 | 1961 | setattr(obj,attr,val) |
|
1952 | 1962 | |
|
1953 | 1963 | #---------------------------------------------------------------------------- |
|
1954 | 1964 | def getattr_list(obj,alist,*args): |
|
1955 | 1965 | """getattr_list(obj,alist[, default]) -> attribute list. |
|
1956 | 1966 | |
|
1957 | 1967 | Get a list of named attributes for an object. When a default argument is |
|
1958 | 1968 | given, it is returned when the attribute doesn't exist; without it, an |
|
1959 | 1969 | exception is raised in that case. |
|
1960 | 1970 | |
|
1961 | 1971 | Note that alist can be given as a string, which will be automatically |
|
1962 | 1972 | split into a list on whitespace. If given as a list, it must be a list of |
|
1963 | 1973 | *strings* (the variable names themselves), not of variables.""" |
|
1964 | 1974 | |
|
1965 | 1975 | if type(alist) in StringTypes: |
|
1966 | 1976 | alist = alist.split() |
|
1967 | 1977 | if args: |
|
1968 | 1978 | if len(args)==1: |
|
1969 | 1979 | default = args[0] |
|
1970 | 1980 | return map(lambda attr: getattr(obj,attr,default),alist) |
|
1971 | 1981 | else: |
|
1972 | 1982 | raise ValueError,'getattr_list() takes only one optional argument' |
|
1973 | 1983 | else: |
|
1974 | 1984 | return map(lambda attr: getattr(obj,attr),alist) |
|
1975 | 1985 | |
|
1976 | 1986 | #---------------------------------------------------------------------------- |
|
1977 | 1987 | def map_method(method,object_list,*argseq,**kw): |
|
1978 | 1988 | """map_method(method,object_list,*args,**kw) -> list |
|
1979 | 1989 | |
|
1980 | 1990 | Return a list of the results of applying the methods to the items of the |
|
1981 | 1991 | argument sequence(s). If more than one sequence is given, the method is |
|
1982 | 1992 | called with an argument list consisting of the corresponding item of each |
|
1983 | 1993 | sequence. All sequences must be of the same length. |
|
1984 | 1994 | |
|
1985 | 1995 | Keyword arguments are passed verbatim to all objects called. |
|
1986 | 1996 | |
|
1987 | 1997 | This is Python code, so it's not nearly as fast as the builtin map().""" |
|
1988 | 1998 | |
|
1989 | 1999 | out_list = [] |
|
1990 | 2000 | idx = 0 |
|
1991 | 2001 | for object in object_list: |
|
1992 | 2002 | try: |
|
1993 | 2003 | handler = getattr(object, method) |
|
1994 | 2004 | except AttributeError: |
|
1995 | 2005 | out_list.append(None) |
|
1996 | 2006 | else: |
|
1997 | 2007 | if argseq: |
|
1998 | 2008 | args = map(lambda lst:lst[idx],argseq) |
|
1999 | 2009 | #print 'ob',object,'hand',handler,'ar',args # dbg |
|
2000 | 2010 | out_list.append(handler(args,**kw)) |
|
2001 | 2011 | else: |
|
2002 | 2012 | out_list.append(handler(**kw)) |
|
2003 | 2013 | idx += 1 |
|
2004 | 2014 | return out_list |
|
2005 | 2015 | |
|
2006 | 2016 | #---------------------------------------------------------------------------- |
|
2007 | 2017 | def get_class_members(cls): |
|
2008 | 2018 | ret = dir(cls) |
|
2009 | 2019 | if hasattr(cls,'__bases__'): |
|
2010 | 2020 | for base in cls.__bases__: |
|
2011 | 2021 | ret.extend(get_class_members(base)) |
|
2012 | 2022 | return ret |
|
2013 | 2023 | |
|
2014 | 2024 | #---------------------------------------------------------------------------- |
|
2015 | 2025 | def dir2(obj): |
|
2016 | 2026 | """dir2(obj) -> list of strings |
|
2017 | 2027 | |
|
2018 | 2028 | Extended version of the Python builtin dir(), which does a few extra |
|
2019 | 2029 | checks, and supports common objects with unusual internals that confuse |
|
2020 | 2030 | dir(), such as Traits and PyCrust. |
|
2021 | 2031 | |
|
2022 | 2032 | This version is guaranteed to return only a list of true strings, whereas |
|
2023 | 2033 | dir() returns anything that objects inject into themselves, even if they |
|
2024 | 2034 | are later not really valid for attribute access (many extension libraries |
|
2025 | 2035 | have such bugs). |
|
2026 | 2036 | """ |
|
2027 | 2037 | |
|
2028 | 2038 | # Start building the attribute list via dir(), and then complete it |
|
2029 | 2039 | # with a few extra special-purpose calls. |
|
2030 | 2040 | words = dir(obj) |
|
2031 | 2041 | |
|
2032 | 2042 | if hasattr(obj,'__class__'): |
|
2033 | 2043 | words.append('__class__') |
|
2034 | 2044 | words.extend(get_class_members(obj.__class__)) |
|
2035 | 2045 | #if '__base__' in words: 1/0 |
|
2036 | 2046 | |
|
2037 | 2047 | # Some libraries (such as traits) may introduce duplicates, we want to |
|
2038 | 2048 | # track and clean this up if it happens |
|
2039 | 2049 | may_have_dupes = False |
|
2040 | 2050 | |
|
2041 | 2051 | # this is the 'dir' function for objects with Enthought's traits |
|
2042 | 2052 | if hasattr(obj, 'trait_names'): |
|
2043 | 2053 | try: |
|
2044 | 2054 | words.extend(obj.trait_names()) |
|
2045 | 2055 | may_have_dupes = True |
|
2046 | 2056 | except TypeError: |
|
2047 | 2057 | # This will happen if `obj` is a class and not an instance. |
|
2048 | 2058 | pass |
|
2049 | 2059 | |
|
2050 | 2060 | # Support for PyCrust-style _getAttributeNames magic method. |
|
2051 | 2061 | if hasattr(obj, '_getAttributeNames'): |
|
2052 | 2062 | try: |
|
2053 | 2063 | words.extend(obj._getAttributeNames()) |
|
2054 | 2064 | may_have_dupes = True |
|
2055 | 2065 | except TypeError: |
|
2056 | 2066 | # `obj` is a class and not an instance. Ignore |
|
2057 | 2067 | # this error. |
|
2058 | 2068 | pass |
|
2059 | 2069 | |
|
2060 | 2070 | if may_have_dupes: |
|
2061 | 2071 | # eliminate possible duplicates, as some traits may also |
|
2062 | 2072 | # appear as normal attributes in the dir() call. |
|
2063 | 2073 | words = list(set(words)) |
|
2064 | 2074 | words.sort() |
|
2065 | 2075 | |
|
2066 | 2076 | # filter out non-string attributes which may be stuffed by dir() calls |
|
2067 | 2077 | # and poor coding in third-party modules |
|
2068 | 2078 | return [w for w in words if isinstance(w, basestring)] |
|
2069 | 2079 | |
|
2070 | 2080 | #---------------------------------------------------------------------------- |
|
2071 | 2081 | def import_fail_info(mod_name,fns=None): |
|
2072 | 2082 | """Inform load failure for a module.""" |
|
2073 | 2083 | |
|
2074 | 2084 | if fns == None: |
|
2075 | 2085 | warn("Loading of %s failed.\n" % (mod_name,)) |
|
2076 | 2086 | else: |
|
2077 | 2087 | warn("Loading of %s from %s failed.\n" % (fns,mod_name)) |
|
2078 | 2088 | |
|
2079 | 2089 | #---------------------------------------------------------------------------- |
|
2080 | 2090 | # Proposed popitem() extension, written as a method |
|
2081 | 2091 | |
|
2082 | 2092 | |
|
2083 | 2093 | class NotGiven: pass |
|
2084 | 2094 | |
|
2085 | 2095 | def popkey(dct,key,default=NotGiven): |
|
2086 | 2096 | """Return dct[key] and delete dct[key]. |
|
2087 | 2097 | |
|
2088 | 2098 | If default is given, return it if dct[key] doesn't exist, otherwise raise |
|
2089 | 2099 | KeyError. """ |
|
2090 | 2100 | |
|
2091 | 2101 | try: |
|
2092 | 2102 | val = dct[key] |
|
2093 | 2103 | except KeyError: |
|
2094 | 2104 | if default is NotGiven: |
|
2095 | 2105 | raise |
|
2096 | 2106 | else: |
|
2097 | 2107 | return default |
|
2098 | 2108 | else: |
|
2099 | 2109 | del dct[key] |
|
2100 | 2110 | return val |
|
2101 | 2111 | |
|
2102 | 2112 | def wrap_deprecated(func, suggest = '<nothing>'): |
|
2103 | 2113 | def newFunc(*args, **kwargs): |
|
2104 | 2114 | warnings.warn("Call to deprecated function %s, use %s instead" % |
|
2105 | 2115 | ( func.__name__, suggest), |
|
2106 | 2116 | category=DeprecationWarning, |
|
2107 | 2117 | stacklevel = 2) |
|
2108 | 2118 | return func(*args, **kwargs) |
|
2109 | 2119 | return newFunc |
|
2110 | 2120 | |
|
2111 | 2121 | |
|
2112 | 2122 | def _num_cpus_unix(): |
|
2113 | 2123 | """Return the number of active CPUs on a Unix system.""" |
|
2114 | 2124 | return os.sysconf("SC_NPROCESSORS_ONLN") |
|
2115 | 2125 | |
|
2116 | 2126 | |
|
2117 | 2127 | def _num_cpus_darwin(): |
|
2118 | 2128 | """Return the number of active CPUs on a Darwin system.""" |
|
2119 | 2129 | p = subprocess.Popen(['sysctl','-n','hw.ncpu'],stdout=subprocess.PIPE) |
|
2120 | 2130 | return p.stdout.read() |
|
2121 | 2131 | |
|
2122 | 2132 | |
|
2123 | 2133 | def _num_cpus_windows(): |
|
2124 | 2134 | """Return the number of active CPUs on a Windows system.""" |
|
2125 | 2135 | return os.environ.get("NUMBER_OF_PROCESSORS") |
|
2126 | 2136 | |
|
2127 | 2137 | |
|
2128 | 2138 | def num_cpus(): |
|
2129 | 2139 | """Return the effective number of CPUs in the system as an integer. |
|
2130 | 2140 | |
|
2131 | 2141 | This cross-platform function makes an attempt at finding the total number of |
|
2132 | 2142 | available CPUs in the system, as returned by various underlying system and |
|
2133 | 2143 | python calls. |
|
2134 | 2144 | |
|
2135 | 2145 | If it can't find a sensible answer, it returns 1 (though an error *may* make |
|
2136 | 2146 | it return a large positive number that's actually incorrect). |
|
2137 | 2147 | """ |
|
2138 | 2148 | |
|
2139 | 2149 | # Many thanks to the Parallel Python project (http://www.parallelpython.com) |
|
2140 | 2150 | # for the names of the keys we needed to look up for this function. This |
|
2141 | 2151 | # code was inspired by their equivalent function. |
|
2142 | 2152 | |
|
2143 | 2153 | ncpufuncs = {'Linux':_num_cpus_unix, |
|
2144 | 2154 | 'Darwin':_num_cpus_darwin, |
|
2145 | 2155 | 'Windows':_num_cpus_windows, |
|
2146 | 2156 | # On Vista, python < 2.5.2 has a bug and returns 'Microsoft' |
|
2147 | 2157 | # See http://bugs.python.org/issue1082 for details. |
|
2148 | 2158 | 'Microsoft':_num_cpus_windows, |
|
2149 | 2159 | } |
|
2150 | 2160 | |
|
2151 | 2161 | ncpufunc = ncpufuncs.get(platform.system(), |
|
2152 | 2162 | # default to unix version (Solaris, AIX, etc) |
|
2153 | 2163 | _num_cpus_unix) |
|
2154 | 2164 | |
|
2155 | 2165 | try: |
|
2156 | 2166 | ncpus = max(1,int(ncpufunc())) |
|
2157 | 2167 | except: |
|
2158 | 2168 | ncpus = 1 |
|
2159 | 2169 | return ncpus |
|
2160 | 2170 | |
|
2161 | 2171 | #*************************** end of file <genutils.py> ********************** |
@@ -1,2865 +1,2870 b'' | |||
|
1 | 1 | # -*- coding: utf-8 -*- |
|
2 | 2 | """ |
|
3 | 3 | IPython -- An enhanced Interactive Python |
|
4 | 4 | |
|
5 | 5 | Requires Python 2.4 or newer. |
|
6 | 6 | |
|
7 | 7 | This file contains all the classes and helper functions specific to IPython. |
|
8 | 8 | """ |
|
9 | 9 | |
|
10 | 10 | #***************************************************************************** |
|
11 | 11 | # Copyright (C) 2001 Janko Hauser <jhauser@zscout.de> and |
|
12 | 12 | # Copyright (C) 2001-2006 Fernando Perez. <fperez@colorado.edu> |
|
13 | 13 | # |
|
14 | 14 | # Distributed under the terms of the BSD License. The full license is in |
|
15 | 15 | # the file COPYING, distributed as part of this software. |
|
16 | 16 | # |
|
17 | 17 | # Note: this code originally subclassed code.InteractiveConsole from the |
|
18 | 18 | # Python standard library. Over time, all of that class has been copied |
|
19 | 19 | # verbatim here for modifications which could not be accomplished by |
|
20 | 20 | # subclassing. At this point, there are no dependencies at all on the code |
|
21 | 21 | # module anymore (it is not even imported). The Python License (sec. 2) |
|
22 | 22 | # allows for this, but it's always nice to acknowledge credit where credit is |
|
23 | 23 | # due. |
|
24 | 24 | #***************************************************************************** |
|
25 | 25 | |
|
26 | 26 | #**************************************************************************** |
|
27 | 27 | # Modules and globals |
|
28 | 28 | |
|
29 | 29 | # Python standard modules |
|
30 | 30 | import __main__ |
|
31 | 31 | import __builtin__ |
|
32 | 32 | import StringIO |
|
33 | 33 | import bdb |
|
34 | 34 | import cPickle as pickle |
|
35 | 35 | import codeop |
|
36 | 36 | import exceptions |
|
37 | 37 | import glob |
|
38 | 38 | import inspect |
|
39 | 39 | import keyword |
|
40 | 40 | import new |
|
41 | 41 | import os |
|
42 | 42 | import pydoc |
|
43 | 43 | import re |
|
44 | 44 | import shutil |
|
45 | 45 | import string |
|
46 | 46 | import sys |
|
47 | 47 | import tempfile |
|
48 | 48 | import traceback |
|
49 | 49 | import types |
|
50 | 50 | from pprint import pprint, pformat |
|
51 | 51 | |
|
52 | 52 | # IPython's own modules |
|
53 | 53 | #import IPython |
|
54 | 54 | from IPython import Debugger,OInspect,PyColorize,ultraTB |
|
55 | 55 | from IPython.ColorANSI import ColorScheme,ColorSchemeTable # too long names |
|
56 | 56 | from IPython.Extensions import pickleshare |
|
57 | 57 | from IPython.FakeModule import FakeModule, init_fakemod_dict |
|
58 | 58 | from IPython.Itpl import Itpl,itpl,printpl,ItplNS,itplns |
|
59 | 59 | from IPython.Logger import Logger |
|
60 | 60 | from IPython.Magic import Magic |
|
61 | 61 | from IPython.Prompts import CachedOutput |
|
62 | 62 | from IPython.ipstruct import Struct |
|
63 | 63 | from IPython.background_jobs import BackgroundJobManager |
|
64 | 64 | from IPython.usage import cmd_line_usage,interactive_usage |
|
65 | 65 | from IPython.genutils import * |
|
66 | 66 | from IPython.strdispatch import StrDispatch |
|
67 | 67 | import IPython.ipapi |
|
68 | 68 | import IPython.history |
|
69 | 69 | import IPython.prefilter as prefilter |
|
70 | 70 | import IPython.shadowns |
|
71 | 71 | # Globals |
|
72 | 72 | |
|
73 | 73 | # store the builtin raw_input globally, and use this always, in case user code |
|
74 | 74 | # overwrites it (like wx.py.PyShell does) |
|
75 | 75 | raw_input_original = raw_input |
|
76 | 76 | |
|
77 | 77 | # compiled regexps for autoindent management |
|
78 | 78 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') |
|
79 | 79 | |
|
80 | 80 | |
|
81 | 81 | #**************************************************************************** |
|
82 | 82 | # Some utility function definitions |
|
83 | 83 | |
|
84 | 84 | ini_spaces_re = re.compile(r'^(\s+)') |
|
85 | 85 | |
|
86 | 86 | def num_ini_spaces(strng): |
|
87 | 87 | """Return the number of initial spaces in a string""" |
|
88 | 88 | |
|
89 | 89 | ini_spaces = ini_spaces_re.match(strng) |
|
90 | 90 | if ini_spaces: |
|
91 | 91 | return ini_spaces.end() |
|
92 | 92 | else: |
|
93 | 93 | return 0 |
|
94 | 94 | |
|
95 | 95 | def softspace(file, newvalue): |
|
96 | 96 | """Copied from code.py, to remove the dependency""" |
|
97 | 97 | |
|
98 | 98 | oldvalue = 0 |
|
99 | 99 | try: |
|
100 | 100 | oldvalue = file.softspace |
|
101 | 101 | except AttributeError: |
|
102 | 102 | pass |
|
103 | 103 | try: |
|
104 | 104 | file.softspace = newvalue |
|
105 | 105 | except (AttributeError, TypeError): |
|
106 | 106 | # "attribute-less object" or "read-only attributes" |
|
107 | 107 | pass |
|
108 | 108 | return oldvalue |
|
109 | 109 | |
|
110 | 110 | |
|
111 | 111 | def user_setup(ipythondir,rc_suffix,mode='install',interactive=True): |
|
112 | 112 | """Install or upgrade the user configuration directory. |
|
113 | 113 | |
|
114 | 114 | Can be called when running for the first time or to upgrade the user's |
|
115 | 115 | .ipython/ directory. |
|
116 | 116 | |
|
117 | 117 | Parameters |
|
118 | 118 | ---------- |
|
119 | 119 | ipythondir : path |
|
120 | 120 | The directory to be used for installation/upgrade. In 'install' mode, |
|
121 | 121 | if this path already exists, the function exits immediately. |
|
122 | 122 | |
|
123 | 123 | rc_suffix : str |
|
124 | 124 | Extension for the config files. On *nix platforms it is typically the |
|
125 | 125 | empty string, while Windows normally uses '.ini'. |
|
126 | 126 | |
|
127 | 127 | mode : str, optional |
|
128 | 128 | Valid modes are 'install' and 'upgrade'. |
|
129 | 129 | |
|
130 | 130 | interactive : bool, optional |
|
131 | 131 | If False, do not wait for user input on any errors. Normally after |
|
132 | 132 | printing its status information, this function waits for the user to |
|
133 | 133 | hit Return before proceeding. This is because the default use case is |
|
134 | 134 | when first installing the IPython configuration, so we want the user to |
|
135 | 135 | acknowledge the initial message, which contains some useful |
|
136 | 136 | information. |
|
137 | 137 | """ |
|
138 | 138 | |
|
139 | 139 | # For automatic use, deactivate all i/o |
|
140 | 140 | if interactive: |
|
141 | 141 | def wait(): |
|
142 | 142 | try: |
|
143 | 143 | raw_input("Please press <RETURN> to start IPython.") |
|
144 | 144 | except EOFError: |
|
145 | 145 | print >> Term.cout |
|
146 | 146 | print '*'*70 |
|
147 | 147 | |
|
148 | 148 | def printf(s): |
|
149 | 149 | print s |
|
150 | 150 | else: |
|
151 | 151 | wait = lambda : None |
|
152 | 152 | printf = lambda s : None |
|
153 | 153 | |
|
154 | 154 | # Install mode should be re-entrant: if the install dir already exists, |
|
155 | # bail out cleanly | |
|
155 | # bail out cleanly. | |
|
156 | # XXX. This is too hasty to return. We need to check to make sure that | |
|
157 | # all the expected config files and directories are actually there. We | |
|
158 | # currently have a failure mode if someone deletes a needed config file | |
|
159 | # but still has the ipythondir. | |
|
156 | 160 | if mode == 'install' and os.path.isdir(ipythondir): |
|
157 | 161 | return |
|
158 | 162 | |
|
159 | 163 | cwd = os.getcwd() # remember where we started |
|
160 | 164 | glb = glob.glob |
|
161 | 165 | |
|
162 | 166 | printf('*'*70) |
|
163 | 167 | if mode == 'install': |
|
164 | 168 | printf( |
|
165 | 169 | """Welcome to IPython. I will try to create a personal configuration directory |
|
166 | 170 | where you can customize many aspects of IPython's functionality in:\n""") |
|
167 | 171 | else: |
|
168 | 172 | printf('I am going to upgrade your configuration in:') |
|
169 | 173 | |
|
170 | 174 | printf(ipythondir) |
|
171 | 175 | |
|
172 | 176 | rcdirend = os.path.join('IPython','UserConfig') |
|
173 | 177 | cfg = lambda d: os.path.join(d,rcdirend) |
|
174 | 178 | try: |
|
175 | 179 | rcdir = filter(os.path.isdir,map(cfg,sys.path))[0] |
|
176 | 180 | printf("Initializing from configuration: %s" % rcdir) |
|
177 | 181 | except IndexError: |
|
178 | 182 | warning = """ |
|
179 | 183 | Installation error. IPython's directory was not found. |
|
180 | 184 | |
|
181 | 185 | Check the following: |
|
182 | 186 | |
|
183 | 187 | The ipython/IPython directory should be in a directory belonging to your |
|
184 | 188 | PYTHONPATH environment variable (that is, it should be in a directory |
|
185 | 189 | belonging to sys.path). You can copy it explicitly there or just link to it. |
|
186 | 190 | |
|
187 | 191 | IPython will create a minimal default configuration for you. |
|
188 | 192 | |
|
189 | 193 | """ |
|
190 | 194 | warn(warning) |
|
191 | 195 | wait() |
|
192 | 196 | |
|
193 | 197 | if sys.platform =='win32': |
|
194 | 198 | inif = 'ipythonrc.ini' |
|
195 | 199 | else: |
|
196 | 200 | inif = 'ipythonrc' |
|
197 | 201 | minimal_setup = {'ipy_user_conf.py' : 'import ipy_defaults', |
|
198 | 202 | inif : '# intentionally left blank' } |
|
199 | 203 | os.makedirs(ipythondir, mode = 0777) |
|
200 | 204 | for f, cont in minimal_setup.items(): |
|
201 | 205 | # In 2.5, this can be more cleanly done using 'with' |
|
202 | 206 | fobj = file(ipythondir + '/' + f,'w') |
|
203 | 207 | fobj.write(cont) |
|
204 | 208 | fobj.close() |
|
205 | 209 | |
|
206 | 210 | return |
|
207 | 211 | |
|
208 | 212 | if mode == 'install': |
|
209 | 213 | try: |
|
210 | 214 | shutil.copytree(rcdir,ipythondir) |
|
211 | 215 | os.chdir(ipythondir) |
|
212 | 216 | rc_files = glb("ipythonrc*") |
|
213 | 217 | for rc_file in rc_files: |
|
214 | 218 | os.rename(rc_file,rc_file+rc_suffix) |
|
215 | 219 | except: |
|
216 | 220 | warning = """ |
|
217 | 221 | |
|
218 | 222 | There was a problem with the installation: |
|
219 | 223 | %s |
|
220 | 224 | Try to correct it or contact the developers if you think it's a bug. |
|
221 | 225 | IPython will proceed with builtin defaults.""" % sys.exc_info()[1] |
|
222 | 226 | warn(warning) |
|
223 | 227 | wait() |
|
224 | 228 | return |
|
225 | 229 | |
|
226 | 230 | elif mode == 'upgrade': |
|
227 | 231 | try: |
|
228 | 232 | os.chdir(ipythondir) |
|
229 | 233 | except: |
|
230 | 234 | printf(""" |
|
231 | 235 | Can not upgrade: changing to directory %s failed. Details: |
|
232 | 236 | %s |
|
233 | 237 | """ % (ipythondir,sys.exc_info()[1]) ) |
|
234 | 238 | wait() |
|
235 | 239 | return |
|
236 | 240 | else: |
|
237 | 241 | sources = glb(os.path.join(rcdir,'[A-Za-z]*')) |
|
238 | 242 | for new_full_path in sources: |
|
239 | 243 | new_filename = os.path.basename(new_full_path) |
|
240 | 244 | if new_filename.startswith('ipythonrc'): |
|
241 | 245 | new_filename = new_filename + rc_suffix |
|
242 | 246 | # The config directory should only contain files, skip any |
|
243 | 247 | # directories which may be there (like CVS) |
|
244 | 248 | if os.path.isdir(new_full_path): |
|
245 | 249 | continue |
|
246 | 250 | if os.path.exists(new_filename): |
|
247 | 251 | old_file = new_filename+'.old' |
|
248 | 252 | if os.path.exists(old_file): |
|
249 | 253 | os.remove(old_file) |
|
250 | 254 | os.rename(new_filename,old_file) |
|
251 | 255 | shutil.copy(new_full_path,new_filename) |
|
252 | 256 | else: |
|
253 | 257 | raise ValueError('unrecognized mode for install: %r' % mode) |
|
254 | 258 | |
|
255 | 259 | # Fix line-endings to those native to each platform in the config |
|
256 | 260 | # directory. |
|
257 | 261 | try: |
|
258 | 262 | os.chdir(ipythondir) |
|
259 | 263 | except: |
|
260 | 264 | printf(""" |
|
261 | 265 | Problem: changing to directory %s failed. |
|
262 | 266 | Details: |
|
263 | 267 | %s |
|
264 | 268 | |
|
265 | 269 | Some configuration files may have incorrect line endings. This should not |
|
266 | 270 | cause any problems during execution. """ % (ipythondir,sys.exc_info()[1]) ) |
|
267 | 271 | wait() |
|
268 | 272 | else: |
|
269 | 273 | for fname in glb('ipythonrc*'): |
|
270 | 274 | try: |
|
271 | 275 | native_line_ends(fname,backup=0) |
|
272 | 276 | except IOError: |
|
273 | 277 | pass |
|
274 | 278 | |
|
275 | 279 | if mode == 'install': |
|
276 | 280 | printf(""" |
|
277 | 281 | Successful installation! |
|
278 | 282 | |
|
279 | 283 | Please read the sections 'Initial Configuration' and 'Quick Tips' in the |
|
280 | 284 | IPython manual (there are both HTML and PDF versions supplied with the |
|
281 | 285 | distribution) to make sure that your system environment is properly configured |
|
282 | 286 | to take advantage of IPython's features. |
|
283 | 287 | |
|
284 | 288 | Important note: the configuration system has changed! The old system is |
|
285 | 289 | still in place, but its setting may be partly overridden by the settings in |
|
286 | 290 | "~/.ipython/ipy_user_conf.py" config file. Please take a look at the file |
|
287 | 291 | if some of the new settings bother you. |
|
288 | 292 | |
|
289 | 293 | """) |
|
290 | 294 | else: |
|
291 | 295 | printf(""" |
|
292 | 296 | Successful upgrade! |
|
293 | 297 | |
|
294 | 298 | All files in your directory: |
|
295 | 299 | %(ipythondir)s |
|
296 | 300 | which would have been overwritten by the upgrade were backed up with a .old |
|
297 | 301 | extension. If you had made particular customizations in those files you may |
|
298 | 302 | want to merge them back into the new files.""" % locals() ) |
|
299 | 303 | wait() |
|
300 | 304 | os.chdir(cwd) |
|
301 | 305 | |
|
302 | 306 | #**************************************************************************** |
|
303 | 307 | # Local use exceptions |
|
304 | 308 | class SpaceInInput(exceptions.Exception): pass |
|
305 | 309 | |
|
306 | 310 | |
|
307 | 311 | #**************************************************************************** |
|
308 | 312 | # Local use classes |
|
309 | 313 | class Bunch: pass |
|
310 | 314 | |
|
311 | 315 | class Undefined: pass |
|
312 | 316 | |
|
313 | 317 | class Quitter(object): |
|
314 | 318 | """Simple class to handle exit, similar to Python 2.5's. |
|
315 | 319 | |
|
316 | 320 | It handles exiting in an ipython-safe manner, which the one in Python 2.5 |
|
317 | 321 | doesn't do (obviously, since it doesn't know about ipython).""" |
|
318 | 322 | |
|
319 | 323 | def __init__(self,shell,name): |
|
320 | 324 | self.shell = shell |
|
321 | 325 | self.name = name |
|
322 | 326 | |
|
323 | 327 | def __repr__(self): |
|
324 | 328 | return 'Type %s() to exit.' % self.name |
|
325 | 329 | __str__ = __repr__ |
|
326 | 330 | |
|
327 | 331 | def __call__(self): |
|
328 | 332 | self.shell.exit() |
|
329 | 333 | |
|
330 | 334 | class InputList(list): |
|
331 | 335 | """Class to store user input. |
|
332 | 336 | |
|
333 | 337 | It's basically a list, but slices return a string instead of a list, thus |
|
334 | 338 | allowing things like (assuming 'In' is an instance): |
|
335 | 339 | |
|
336 | 340 | exec In[4:7] |
|
337 | 341 | |
|
338 | 342 | or |
|
339 | 343 | |
|
340 | 344 | exec In[5:9] + In[14] + In[21:25]""" |
|
341 | 345 | |
|
342 | 346 | def __getslice__(self,i,j): |
|
343 | 347 | return ''.join(list.__getslice__(self,i,j)) |
|
344 | 348 | |
|
345 | 349 | class SyntaxTB(ultraTB.ListTB): |
|
346 | 350 | """Extension which holds some state: the last exception value""" |
|
347 | 351 | |
|
348 | 352 | def __init__(self,color_scheme = 'NoColor'): |
|
349 | 353 | ultraTB.ListTB.__init__(self,color_scheme) |
|
350 | 354 | self.last_syntax_error = None |
|
351 | 355 | |
|
352 | 356 | def __call__(self, etype, value, elist): |
|
353 | 357 | self.last_syntax_error = value |
|
354 | 358 | ultraTB.ListTB.__call__(self,etype,value,elist) |
|
355 | 359 | |
|
356 | 360 | def clear_err_state(self): |
|
357 | 361 | """Return the current error state and clear it""" |
|
358 | 362 | e = self.last_syntax_error |
|
359 | 363 | self.last_syntax_error = None |
|
360 | 364 | return e |
|
361 | 365 | |
|
362 | 366 | #**************************************************************************** |
|
363 | 367 | # Main IPython class |
|
364 | 368 | |
|
365 | 369 | # FIXME: the Magic class is a mixin for now, and will unfortunately remain so |
|
366 | 370 | # until a full rewrite is made. I've cleaned all cross-class uses of |
|
367 | 371 | # attributes and methods, but too much user code out there relies on the |
|
368 | 372 | # equlity %foo == __IP.magic_foo, so I can't actually remove the mixin usage. |
|
369 | 373 | # |
|
370 | 374 | # But at least now, all the pieces have been separated and we could, in |
|
371 | 375 | # principle, stop using the mixin. This will ease the transition to the |
|
372 | 376 | # chainsaw branch. |
|
373 | 377 | |
|
374 | 378 | # For reference, the following is the list of 'self.foo' uses in the Magic |
|
375 | 379 | # class as of 2005-12-28. These are names we CAN'T use in the main ipython |
|
376 | 380 | # class, to prevent clashes. |
|
377 | 381 | |
|
378 | 382 | # ['self.__class__', 'self.__dict__', 'self._inspect', 'self._ofind', |
|
379 | 383 | # 'self.arg_err', 'self.extract_input', 'self.format_', 'self.lsmagic', |
|
380 | 384 | # 'self.magic_', 'self.options_table', 'self.parse', 'self.shell', |
|
381 | 385 | # 'self.value'] |
|
382 | 386 | |
|
383 | 387 | class InteractiveShell(object,Magic): |
|
384 | 388 | """An enhanced console for Python.""" |
|
385 | 389 | |
|
386 | 390 | # class attribute to indicate whether the class supports threads or not. |
|
387 | 391 | # Subclasses with thread support should override this as needed. |
|
388 | 392 | isthreaded = False |
|
389 | 393 | |
|
390 | 394 | def __init__(self,name,usage=None,rc=Struct(opts=None,args=None), |
|
391 | 395 | user_ns=None,user_global_ns=None,banner2='', |
|
392 | 396 | custom_exceptions=((),None),embedded=False): |
|
393 | 397 | |
|
394 | 398 | # log system |
|
395 | 399 | self.logger = Logger(self,logfname='ipython_log.py',logmode='rotate') |
|
396 | 400 | |
|
397 | 401 | # Job manager (for jobs run as background threads) |
|
398 | 402 | self.jobs = BackgroundJobManager() |
|
399 | 403 | |
|
400 | 404 | # Store the actual shell's name |
|
401 | 405 | self.name = name |
|
402 | 406 | self.more = False |
|
403 | 407 | |
|
404 | 408 | # We need to know whether the instance is meant for embedding, since |
|
405 | 409 | # global/local namespaces need to be handled differently in that case |
|
406 | 410 | self.embedded = embedded |
|
407 | 411 | if embedded: |
|
408 | 412 | # Control variable so users can, from within the embedded instance, |
|
409 | 413 | # permanently deactivate it. |
|
410 | 414 | self.embedded_active = True |
|
411 | 415 | |
|
412 | 416 | # command compiler |
|
413 | 417 | self.compile = codeop.CommandCompiler() |
|
414 | 418 | |
|
415 | 419 | # User input buffer |
|
416 | 420 | self.buffer = [] |
|
417 | 421 | |
|
418 | 422 | # Default name given in compilation of code |
|
419 | 423 | self.filename = '<ipython console>' |
|
420 | 424 | |
|
421 | 425 | # Install our own quitter instead of the builtins. For python2.3-2.4, |
|
422 | 426 | # this brings in behavior like 2.5, and for 2.5 it's identical. |
|
423 | 427 | __builtin__.exit = Quitter(self,'exit') |
|
424 | 428 | __builtin__.quit = Quitter(self,'quit') |
|
425 | 429 | |
|
426 | 430 | # Make an empty namespace, which extension writers can rely on both |
|
427 | 431 | # existing and NEVER being used by ipython itself. This gives them a |
|
428 | 432 | # convenient location for storing additional information and state |
|
429 | 433 | # their extensions may require, without fear of collisions with other |
|
430 | 434 | # ipython names that may develop later. |
|
431 | 435 | self.meta = Struct() |
|
432 | 436 | |
|
433 | 437 | # Create the namespace where the user will operate. user_ns is |
|
434 | 438 | # normally the only one used, and it is passed to the exec calls as |
|
435 | 439 | # the locals argument. But we do carry a user_global_ns namespace |
|
436 | 440 | # given as the exec 'globals' argument, This is useful in embedding |
|
437 | 441 | # situations where the ipython shell opens in a context where the |
|
438 | 442 | # distinction between locals and globals is meaningful. For |
|
439 | 443 | # non-embedded contexts, it is just the same object as the user_ns dict. |
|
440 | 444 | |
|
441 | 445 | # FIXME. For some strange reason, __builtins__ is showing up at user |
|
442 | 446 | # level as a dict instead of a module. This is a manual fix, but I |
|
443 | 447 | # should really track down where the problem is coming from. Alex |
|
444 | 448 | # Schmolck reported this problem first. |
|
445 | 449 | |
|
446 | 450 | # A useful post by Alex Martelli on this topic: |
|
447 | 451 | # Re: inconsistent value from __builtins__ |
|
448 | 452 | # Von: Alex Martelli <aleaxit@yahoo.com> |
|
449 | 453 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends |
|
450 | 454 | # Gruppen: comp.lang.python |
|
451 | 455 | |
|
452 | 456 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: |
|
453 | 457 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) |
|
454 | 458 | # > <type 'dict'> |
|
455 | 459 | # > >>> print type(__builtins__) |
|
456 | 460 | # > <type 'module'> |
|
457 | 461 | # > Is this difference in return value intentional? |
|
458 | 462 | |
|
459 | 463 | # Well, it's documented that '__builtins__' can be either a dictionary |
|
460 | 464 | # or a module, and it's been that way for a long time. Whether it's |
|
461 | 465 | # intentional (or sensible), I don't know. In any case, the idea is |
|
462 | 466 | # that if you need to access the built-in namespace directly, you |
|
463 | 467 | # should start with "import __builtin__" (note, no 's') which will |
|
464 | 468 | # definitely give you a module. Yeah, it's somewhat confusing:-(. |
|
465 | 469 | |
|
466 | 470 | # These routines return properly built dicts as needed by the rest of |
|
467 | 471 | # the code, and can also be used by extension writers to generate |
|
468 | 472 | # properly initialized namespaces. |
|
469 | 473 | user_ns, user_global_ns = IPython.ipapi.make_user_namespaces(user_ns, |
|
470 | 474 | user_global_ns) |
|
471 | 475 | |
|
472 | 476 | # Assign namespaces |
|
473 | 477 | # This is the namespace where all normal user variables live |
|
474 | 478 | self.user_ns = user_ns |
|
475 | 479 | self.user_global_ns = user_global_ns |
|
476 | 480 | |
|
477 | 481 | # An auxiliary namespace that checks what parts of the user_ns were |
|
478 | 482 | # loaded at startup, so we can list later only variables defined in |
|
479 | 483 | # actual interactive use. Since it is always a subset of user_ns, it |
|
480 | 484 | # doesn't need to be seaparately tracked in the ns_table |
|
481 | 485 | self.user_config_ns = {} |
|
482 | 486 | |
|
483 | 487 | # A namespace to keep track of internal data structures to prevent |
|
484 | 488 | # them from cluttering user-visible stuff. Will be updated later |
|
485 | 489 | self.internal_ns = {} |
|
486 | 490 | |
|
487 | 491 | # Namespace of system aliases. Each entry in the alias |
|
488 | 492 | # table must be a 2-tuple of the form (N,name), where N is the number |
|
489 | 493 | # of positional arguments of the alias. |
|
490 | 494 | self.alias_table = {} |
|
491 | 495 | |
|
492 | 496 | # Now that FakeModule produces a real module, we've run into a nasty |
|
493 | 497 | # problem: after script execution (via %run), the module where the user |
|
494 | 498 | # code ran is deleted. Now that this object is a true module (needed |
|
495 | 499 | # so docetst and other tools work correctly), the Python module |
|
496 | 500 | # teardown mechanism runs over it, and sets to None every variable |
|
497 | 501 | # present in that module. Top-level references to objects from the |
|
498 | 502 | # script survive, because the user_ns is updated with them. However, |
|
499 | 503 | # calling functions defined in the script that use other things from |
|
500 | 504 | # the script will fail, because the function's closure had references |
|
501 | 505 | # to the original objects, which are now all None. So we must protect |
|
502 | 506 | # these modules from deletion by keeping a cache. |
|
503 | 507 | # |
|
504 | 508 | # To avoid keeping stale modules around (we only need the one from the |
|
505 | 509 | # last run), we use a dict keyed with the full path to the script, so |
|
506 | 510 | # only the last version of the module is held in the cache. Note, |
|
507 | 511 | # however, that we must cache the module *namespace contents* (their |
|
508 | 512 | # __dict__). Because if we try to cache the actual modules, old ones |
|
509 | 513 | # (uncached) could be destroyed while still holding references (such as |
|
510 | 514 | # those held by GUI objects that tend to be long-lived)> |
|
511 | 515 | # |
|
512 | 516 | # The %reset command will flush this cache. See the cache_main_mod() |
|
513 | 517 | # and clear_main_mod_cache() methods for details on use. |
|
514 | 518 | |
|
515 | 519 | # This is the cache used for 'main' namespaces |
|
516 | 520 | self._main_ns_cache = {} |
|
517 | 521 | # And this is the single instance of FakeModule whose __dict__ we keep |
|
518 | 522 | # copying and clearing for reuse on each %run |
|
519 | 523 | self._user_main_module = FakeModule() |
|
520 | 524 | |
|
521 | 525 | # A table holding all the namespaces IPython deals with, so that |
|
522 | 526 | # introspection facilities can search easily. |
|
523 | 527 | self.ns_table = {'user':user_ns, |
|
524 | 528 | 'user_global':user_global_ns, |
|
525 | 529 | 'alias':self.alias_table, |
|
526 | 530 | 'internal':self.internal_ns, |
|
527 | 531 | 'builtin':__builtin__.__dict__ |
|
528 | 532 | } |
|
529 | 533 | |
|
530 | 534 | # Similarly, track all namespaces where references can be held and that |
|
531 | 535 | # we can safely clear (so it can NOT include builtin). This one can be |
|
532 | 536 | # a simple list. |
|
533 | 537 | self.ns_refs_table = [ user_ns, user_global_ns, self.user_config_ns, |
|
534 | 538 | self.alias_table, self.internal_ns, |
|
535 | 539 | self._main_ns_cache ] |
|
536 | 540 | |
|
537 | 541 | # We need to insert into sys.modules something that looks like a |
|
538 | 542 | # module but which accesses the IPython namespace, for shelve and |
|
539 | 543 | # pickle to work interactively. Normally they rely on getting |
|
540 | 544 | # everything out of __main__, but for embedding purposes each IPython |
|
541 | 545 | # instance has its own private namespace, so we can't go shoving |
|
542 | 546 | # everything into __main__. |
|
543 | 547 | |
|
544 | 548 | # note, however, that we should only do this for non-embedded |
|
545 | 549 | # ipythons, which really mimic the __main__.__dict__ with their own |
|
546 | 550 | # namespace. Embedded instances, on the other hand, should not do |
|
547 | 551 | # this because they need to manage the user local/global namespaces |
|
548 | 552 | # only, but they live within a 'normal' __main__ (meaning, they |
|
549 | 553 | # shouldn't overtake the execution environment of the script they're |
|
550 | 554 | # embedded in). |
|
551 | 555 | |
|
552 | 556 | if not embedded: |
|
553 | 557 | try: |
|
554 | 558 | main_name = self.user_ns['__name__'] |
|
555 | 559 | except KeyError: |
|
556 | 560 | raise KeyError,'user_ns dictionary MUST have a "__name__" key' |
|
557 | 561 | else: |
|
558 | 562 | #print "pickle hack in place" # dbg |
|
559 | 563 | #print 'main_name:',main_name # dbg |
|
560 | 564 | sys.modules[main_name] = FakeModule(self.user_ns) |
|
561 | 565 | |
|
562 | 566 | # List of input with multi-line handling. |
|
563 | 567 | self.input_hist = InputList() |
|
564 | 568 | # This one will hold the 'raw' input history, without any |
|
565 | 569 | # pre-processing. This will allow users to retrieve the input just as |
|
566 | 570 | # it was exactly typed in by the user, with %hist -r. |
|
567 | 571 | self.input_hist_raw = InputList() |
|
568 | 572 | |
|
569 | 573 | # list of visited directories |
|
570 | 574 | try: |
|
571 | 575 | self.dir_hist = [os.getcwd()] |
|
572 | 576 | except OSError: |
|
573 | 577 | self.dir_hist = [] |
|
574 | 578 | |
|
575 | 579 | # dict of output history |
|
576 | 580 | self.output_hist = {} |
|
577 | 581 | |
|
578 | 582 | # Get system encoding at startup time. Certain terminals (like Emacs |
|
579 | 583 | # under Win32 have it set to None, and we need to have a known valid |
|
580 | 584 | # encoding to use in the raw_input() method |
|
581 | 585 | try: |
|
582 | 586 | self.stdin_encoding = sys.stdin.encoding or 'ascii' |
|
583 | 587 | except AttributeError: |
|
584 | 588 | self.stdin_encoding = 'ascii' |
|
585 | 589 | |
|
586 | 590 | # dict of things NOT to alias (keywords, builtins and some magics) |
|
587 | 591 | no_alias = {} |
|
588 | 592 | no_alias_magics = ['cd','popd','pushd','dhist','alias','unalias'] |
|
589 | 593 | for key in keyword.kwlist + no_alias_magics: |
|
590 | 594 | no_alias[key] = 1 |
|
591 | 595 | no_alias.update(__builtin__.__dict__) |
|
592 | 596 | self.no_alias = no_alias |
|
593 | 597 | |
|
594 | 598 | # Object variable to store code object waiting execution. This is |
|
595 | 599 | # used mainly by the multithreaded shells, but it can come in handy in |
|
596 | 600 | # other situations. No need to use a Queue here, since it's a single |
|
597 | 601 | # item which gets cleared once run. |
|
598 | 602 | self.code_to_run = None |
|
599 | 603 | |
|
600 | 604 | # escapes for automatic behavior on the command line |
|
601 | 605 | self.ESC_SHELL = '!' |
|
602 | 606 | self.ESC_SH_CAP = '!!' |
|
603 | 607 | self.ESC_HELP = '?' |
|
604 | 608 | self.ESC_MAGIC = '%' |
|
605 | 609 | self.ESC_QUOTE = ',' |
|
606 | 610 | self.ESC_QUOTE2 = ';' |
|
607 | 611 | self.ESC_PAREN = '/' |
|
608 | 612 | |
|
609 | 613 | # And their associated handlers |
|
610 | 614 | self.esc_handlers = {self.ESC_PAREN : self.handle_auto, |
|
611 | 615 | self.ESC_QUOTE : self.handle_auto, |
|
612 | 616 | self.ESC_QUOTE2 : self.handle_auto, |
|
613 | 617 | self.ESC_MAGIC : self.handle_magic, |
|
614 | 618 | self.ESC_HELP : self.handle_help, |
|
615 | 619 | self.ESC_SHELL : self.handle_shell_escape, |
|
616 | 620 | self.ESC_SH_CAP : self.handle_shell_escape, |
|
617 | 621 | } |
|
618 | 622 | |
|
619 | 623 | # class initializations |
|
620 | 624 | Magic.__init__(self,self) |
|
621 | 625 | |
|
622 | 626 | # Python source parser/formatter for syntax highlighting |
|
623 | 627 | pyformat = PyColorize.Parser().format |
|
624 | 628 | self.pycolorize = lambda src: pyformat(src,'str',self.rc['colors']) |
|
625 | 629 | |
|
626 | 630 | # hooks holds pointers used for user-side customizations |
|
627 | 631 | self.hooks = Struct() |
|
628 | 632 | |
|
629 | 633 | self.strdispatchers = {} |
|
630 | 634 | |
|
631 | 635 | # Set all default hooks, defined in the IPython.hooks module. |
|
632 | 636 | hooks = IPython.hooks |
|
633 | 637 | for hook_name in hooks.__all__: |
|
634 | 638 | # default hooks have priority 100, i.e. low; user hooks should have |
|
635 | 639 | # 0-100 priority |
|
636 | 640 | self.set_hook(hook_name,getattr(hooks,hook_name), 100) |
|
637 | 641 | #print "bound hook",hook_name |
|
638 | 642 | |
|
639 | 643 | # Flag to mark unconditional exit |
|
640 | 644 | self.exit_now = False |
|
641 | 645 | |
|
642 | 646 | self.usage_min = """\ |
|
643 | 647 | An enhanced console for Python. |
|
644 | 648 | Some of its features are: |
|
645 | 649 | - Readline support if the readline library is present. |
|
646 | 650 | - Tab completion in the local namespace. |
|
647 | 651 | - Logging of input, see command-line options. |
|
648 | 652 | - System shell escape via ! , eg !ls. |
|
649 | 653 | - Magic commands, starting with a % (like %ls, %pwd, %cd, etc.) |
|
650 | 654 | - Keeps track of locally defined variables via %who, %whos. |
|
651 | 655 | - Show object information with a ? eg ?x or x? (use ?? for more info). |
|
652 | 656 | """ |
|
653 | 657 | if usage: self.usage = usage |
|
654 | 658 | else: self.usage = self.usage_min |
|
655 | 659 | |
|
656 | 660 | # Storage |
|
657 | 661 | self.rc = rc # This will hold all configuration information |
|
658 | 662 | self.pager = 'less' |
|
659 | 663 | # temporary files used for various purposes. Deleted at exit. |
|
660 | 664 | self.tempfiles = [] |
|
661 | 665 | |
|
662 | 666 | # Keep track of readline usage (later set by init_readline) |
|
663 | 667 | self.has_readline = False |
|
664 | 668 | |
|
665 | 669 | # template for logfile headers. It gets resolved at runtime by the |
|
666 | 670 | # logstart method. |
|
667 | 671 | self.loghead_tpl = \ |
|
668 | 672 | """#log# Automatic Logger file. *** THIS MUST BE THE FIRST LINE *** |
|
669 | 673 | #log# DO NOT CHANGE THIS LINE OR THE TWO BELOW |
|
670 | 674 | #log# opts = %s |
|
671 | 675 | #log# args = %s |
|
672 | 676 | #log# It is safe to make manual edits below here. |
|
673 | 677 | #log#----------------------------------------------------------------------- |
|
674 | 678 | """ |
|
675 | 679 | # for pushd/popd management |
|
676 | 680 | try: |
|
677 | 681 | self.home_dir = get_home_dir() |
|
678 | 682 | except HomeDirError,msg: |
|
679 | 683 | fatal(msg) |
|
680 | 684 | |
|
681 | 685 | self.dir_stack = [] |
|
682 | 686 | |
|
683 | 687 | # Functions to call the underlying shell. |
|
684 | 688 | |
|
685 | 689 | # The first is similar to os.system, but it doesn't return a value, |
|
686 | 690 | # and it allows interpolation of variables in the user's namespace. |
|
687 | 691 | self.system = lambda cmd: \ |
|
688 | 692 | self.hooks.shell_hook(self.var_expand(cmd,depth=2)) |
|
689 | 693 | |
|
690 | 694 | # These are for getoutput and getoutputerror: |
|
691 | 695 | self.getoutput = lambda cmd: \ |
|
692 | 696 | getoutput(self.var_expand(cmd,depth=2), |
|
693 | 697 | header=self.rc.system_header, |
|
694 | 698 | verbose=self.rc.system_verbose) |
|
695 | 699 | |
|
696 | 700 | self.getoutputerror = lambda cmd: \ |
|
697 | 701 | getoutputerror(self.var_expand(cmd,depth=2), |
|
698 | 702 | header=self.rc.system_header, |
|
699 | 703 | verbose=self.rc.system_verbose) |
|
700 | 704 | |
|
701 | 705 | |
|
702 | 706 | # keep track of where we started running (mainly for crash post-mortem) |
|
703 | 707 | self.starting_dir = os.getcwd() |
|
704 | 708 | |
|
705 | 709 | # Various switches which can be set |
|
706 | 710 | self.CACHELENGTH = 5000 # this is cheap, it's just text |
|
707 | 711 | self.BANNER = "Python %(version)s on %(platform)s\n" % sys.__dict__ |
|
708 | 712 | self.banner2 = banner2 |
|
709 | 713 | |
|
710 | 714 | # TraceBack handlers: |
|
711 | 715 | |
|
712 | 716 | # Syntax error handler. |
|
713 | 717 | self.SyntaxTB = SyntaxTB(color_scheme='NoColor') |
|
714 | 718 | |
|
715 | 719 | # The interactive one is initialized with an offset, meaning we always |
|
716 | 720 | # want to remove the topmost item in the traceback, which is our own |
|
717 | 721 | # internal code. Valid modes: ['Plain','Context','Verbose'] |
|
718 | 722 | self.InteractiveTB = ultraTB.AutoFormattedTB(mode = 'Plain', |
|
719 | 723 | color_scheme='NoColor', |
|
720 | 724 | tb_offset = 1) |
|
721 | 725 | |
|
722 | 726 | # IPython itself shouldn't crash. This will produce a detailed |
|
723 | 727 | # post-mortem if it does. But we only install the crash handler for |
|
724 | 728 | # non-threaded shells, the threaded ones use a normal verbose reporter |
|
725 | 729 | # and lose the crash handler. This is because exceptions in the main |
|
726 | 730 | # thread (such as in GUI code) propagate directly to sys.excepthook, |
|
727 | 731 | # and there's no point in printing crash dumps for every user exception. |
|
728 | 732 | if self.isthreaded: |
|
729 | 733 | ipCrashHandler = ultraTB.FormattedTB() |
|
730 | 734 | else: |
|
731 | 735 | from IPython import CrashHandler |
|
732 | 736 | ipCrashHandler = CrashHandler.IPythonCrashHandler(self) |
|
733 | 737 | self.set_crash_handler(ipCrashHandler) |
|
734 | 738 | |
|
735 | 739 | # and add any custom exception handlers the user may have specified |
|
736 | 740 | self.set_custom_exc(*custom_exceptions) |
|
737 | 741 | |
|
738 | 742 | # indentation management |
|
739 | 743 | self.autoindent = False |
|
740 | 744 | self.indent_current_nsp = 0 |
|
741 | 745 | |
|
742 | 746 | # Make some aliases automatically |
|
743 | 747 | # Prepare list of shell aliases to auto-define |
|
744 | 748 | if os.name == 'posix': |
|
745 | 749 | auto_alias = ('mkdir mkdir', 'rmdir rmdir', |
|
746 | 750 | 'mv mv -i','rm rm -i','cp cp -i', |
|
747 | 751 | 'cat cat','less less','clear clear', |
|
748 | 752 | # a better ls |
|
749 | 753 | 'ls ls -F', |
|
750 | 754 | # long ls |
|
751 | 755 | 'll ls -lF') |
|
752 | 756 | # Extra ls aliases with color, which need special treatment on BSD |
|
753 | 757 | # variants |
|
754 | 758 | ls_extra = ( # color ls |
|
755 | 759 | 'lc ls -F -o --color', |
|
756 | 760 | # ls normal files only |
|
757 | 761 | 'lf ls -F -o --color %l | grep ^-', |
|
758 | 762 | # ls symbolic links |
|
759 | 763 | 'lk ls -F -o --color %l | grep ^l', |
|
760 | 764 | # directories or links to directories, |
|
761 | 765 | 'ldir ls -F -o --color %l | grep /$', |
|
762 | 766 | # things which are executable |
|
763 | 767 | 'lx ls -F -o --color %l | grep ^-..x', |
|
764 | 768 | ) |
|
765 | 769 | # The BSDs don't ship GNU ls, so they don't understand the |
|
766 | 770 | # --color switch out of the box |
|
767 | 771 | if 'bsd' in sys.platform: |
|
768 | 772 | ls_extra = ( # ls normal files only |
|
769 | 773 | 'lf ls -lF | grep ^-', |
|
770 | 774 | # ls symbolic links |
|
771 | 775 | 'lk ls -lF | grep ^l', |
|
772 | 776 | # directories or links to directories, |
|
773 | 777 | 'ldir ls -lF | grep /$', |
|
774 | 778 | # things which are executable |
|
775 | 779 | 'lx ls -lF | grep ^-..x', |
|
776 | 780 | ) |
|
777 | 781 | auto_alias = auto_alias + ls_extra |
|
778 | 782 | elif os.name in ['nt','dos']: |
|
779 | 783 | auto_alias = ('ls dir /on', |
|
780 | 784 | 'ddir dir /ad /on', 'ldir dir /ad /on', |
|
781 | 785 | 'mkdir mkdir','rmdir rmdir','echo echo', |
|
782 | 786 | 'ren ren','cls cls','copy copy') |
|
783 | 787 | else: |
|
784 | 788 | auto_alias = () |
|
785 | 789 | self.auto_alias = [s.split(None,1) for s in auto_alias] |
|
786 | 790 | |
|
787 | 791 | # Produce a public API instance |
|
788 | 792 | self.api = IPython.ipapi.IPApi(self) |
|
789 | 793 | |
|
790 | 794 | # Initialize all user-visible namespaces |
|
791 | 795 | self.init_namespaces() |
|
792 | 796 | |
|
793 | 797 | # Call the actual (public) initializer |
|
794 | 798 | self.init_auto_alias() |
|
795 | 799 | |
|
796 | 800 | # track which builtins we add, so we can clean up later |
|
797 | 801 | self.builtins_added = {} |
|
798 | 802 | # This method will add the necessary builtins for operation, but |
|
799 | 803 | # tracking what it did via the builtins_added dict. |
|
800 | 804 | |
|
801 | 805 | #TODO: remove this, redundant |
|
802 | 806 | self.add_builtins() |
|
803 | 807 | # end __init__ |
|
804 | 808 | |
|
805 | 809 | def var_expand(self,cmd,depth=0): |
|
806 | 810 | """Expand python variables in a string. |
|
807 | 811 | |
|
808 | 812 | The depth argument indicates how many frames above the caller should |
|
809 | 813 | be walked to look for the local namespace where to expand variables. |
|
810 | 814 | |
|
811 | 815 | The global namespace for expansion is always the user's interactive |
|
812 | 816 | namespace. |
|
813 | 817 | """ |
|
814 | 818 | |
|
815 | 819 | return str(ItplNS(cmd, |
|
816 | 820 | self.user_ns, # globals |
|
817 | 821 | # Skip our own frame in searching for locals: |
|
818 | 822 | sys._getframe(depth+1).f_locals # locals |
|
819 | 823 | )) |
|
820 | 824 | |
|
821 | 825 | def pre_config_initialization(self): |
|
822 | 826 | """Pre-configuration init method |
|
823 | 827 | |
|
824 | 828 | This is called before the configuration files are processed to |
|
825 | 829 | prepare the services the config files might need. |
|
826 | 830 | |
|
827 | 831 | self.rc already has reasonable default values at this point. |
|
828 | 832 | """ |
|
829 | 833 | rc = self.rc |
|
830 | 834 | try: |
|
831 | 835 | self.db = pickleshare.PickleShareDB(rc.ipythondir + "/db") |
|
832 | 836 | except exceptions.UnicodeDecodeError: |
|
833 | 837 | print "Your ipythondir can't be decoded to unicode!" |
|
834 | 838 | print "Please set HOME environment variable to something that" |
|
835 | 839 | print r"only has ASCII characters, e.g. c:\home" |
|
836 | 840 | print "Now it is",rc.ipythondir |
|
837 | 841 | sys.exit() |
|
838 | 842 | self.shadowhist = IPython.history.ShadowHist(self.db) |
|
839 | 843 | |
|
840 | 844 | def post_config_initialization(self): |
|
841 | 845 | """Post configuration init method |
|
842 | 846 | |
|
843 | 847 | This is called after the configuration files have been processed to |
|
844 | 848 | 'finalize' the initialization.""" |
|
845 | 849 | |
|
846 | 850 | rc = self.rc |
|
847 | 851 | |
|
848 | 852 | # Object inspector |
|
849 | 853 | self.inspector = OInspect.Inspector(OInspect.InspectColors, |
|
850 | 854 | PyColorize.ANSICodeColors, |
|
851 | 855 | 'NoColor', |
|
852 | 856 | rc.object_info_string_level) |
|
853 | 857 | |
|
854 | 858 | self.rl_next_input = None |
|
855 | 859 | self.rl_do_indent = False |
|
856 | 860 | # Load readline proper |
|
857 | 861 | if rc.readline: |
|
858 | 862 | self.init_readline() |
|
859 | 863 | |
|
860 | 864 | # local shortcut, this is used a LOT |
|
861 | 865 | self.log = self.logger.log |
|
862 | 866 | |
|
863 | 867 | # Initialize cache, set in/out prompts and printing system |
|
864 | 868 | self.outputcache = CachedOutput(self, |
|
865 | 869 | rc.cache_size, |
|
866 | 870 | rc.pprint, |
|
867 | 871 | input_sep = rc.separate_in, |
|
868 | 872 | output_sep = rc.separate_out, |
|
869 | 873 | output_sep2 = rc.separate_out2, |
|
870 | 874 | ps1 = rc.prompt_in1, |
|
871 | 875 | ps2 = rc.prompt_in2, |
|
872 | 876 | ps_out = rc.prompt_out, |
|
873 | 877 | pad_left = rc.prompts_pad_left) |
|
874 | 878 | |
|
875 | 879 | # user may have over-ridden the default print hook: |
|
876 | 880 | try: |
|
877 | 881 | self.outputcache.__class__.display = self.hooks.display |
|
878 | 882 | except AttributeError: |
|
879 | 883 | pass |
|
880 | 884 | |
|
881 | 885 | # I don't like assigning globally to sys, because it means when |
|
882 | 886 | # embedding instances, each embedded instance overrides the previous |
|
883 | 887 | # choice. But sys.displayhook seems to be called internally by exec, |
|
884 | 888 | # so I don't see a way around it. We first save the original and then |
|
885 | 889 | # overwrite it. |
|
886 | 890 | self.sys_displayhook = sys.displayhook |
|
887 | 891 | sys.displayhook = self.outputcache |
|
888 | 892 | |
|
889 | 893 | # Do a proper resetting of doctest, including the necessary displayhook |
|
890 | 894 | # monkeypatching |
|
891 | 895 | try: |
|
892 | 896 | doctest_reload() |
|
893 | 897 | except ImportError: |
|
894 | 898 | warn("doctest module does not exist.") |
|
895 | 899 | |
|
896 | 900 | # Set user colors (don't do it in the constructor above so that it |
|
897 | 901 | # doesn't crash if colors option is invalid) |
|
898 | 902 | self.magic_colors(rc.colors) |
|
899 | 903 | |
|
900 | 904 | # Set calling of pdb on exceptions |
|
901 | 905 | self.call_pdb = rc.pdb |
|
902 | 906 | |
|
903 | 907 | # Load user aliases |
|
904 | 908 | for alias in rc.alias: |
|
905 | 909 | self.magic_alias(alias) |
|
906 | 910 | |
|
907 | 911 | self.hooks.late_startup_hook() |
|
908 | 912 | |
|
909 | 913 | for cmd in self.rc.autoexec: |
|
910 | 914 | #print "autoexec>",cmd #dbg |
|
911 | 915 | self.api.runlines(cmd) |
|
912 | 916 | |
|
913 | 917 | batchrun = False |
|
914 | 918 | for batchfile in [path(arg) for arg in self.rc.args |
|
915 | 919 | if arg.lower().endswith('.ipy')]: |
|
916 | 920 | if not batchfile.isfile(): |
|
917 | 921 | print "No such batch file:", batchfile |
|
918 | 922 | continue |
|
919 | 923 | self.api.runlines(batchfile.text()) |
|
920 | 924 | batchrun = True |
|
921 | 925 | # without -i option, exit after running the batch file |
|
922 | 926 | if batchrun and not self.rc.interact: |
|
923 | 927 | self.ask_exit() |
|
924 | 928 | |
|
925 | 929 | def init_namespaces(self): |
|
926 | 930 | """Initialize all user-visible namespaces to their minimum defaults. |
|
927 | 931 | |
|
928 | 932 | Certain history lists are also initialized here, as they effectively |
|
929 | 933 | act as user namespaces. |
|
930 | 934 | |
|
931 | 935 | Note |
|
932 | 936 | ---- |
|
933 | 937 | All data structures here are only filled in, they are NOT reset by this |
|
934 | 938 | method. If they were not empty before, data will simply be added to |
|
935 | 939 | therm. |
|
936 | 940 | """ |
|
937 | 941 | # The user namespace MUST have a pointer to the shell itself. |
|
938 | 942 | self.user_ns[self.name] = self |
|
939 | 943 | |
|
940 | 944 | # Store the public api instance |
|
941 | 945 | self.user_ns['_ip'] = self.api |
|
942 | 946 | |
|
943 | 947 | # make global variables for user access to the histories |
|
944 | 948 | self.user_ns['_ih'] = self.input_hist |
|
945 | 949 | self.user_ns['_oh'] = self.output_hist |
|
946 | 950 | self.user_ns['_dh'] = self.dir_hist |
|
947 | 951 | |
|
948 | 952 | # user aliases to input and output histories |
|
949 | 953 | self.user_ns['In'] = self.input_hist |
|
950 | 954 | self.user_ns['Out'] = self.output_hist |
|
951 | 955 | |
|
952 | 956 | self.user_ns['_sh'] = IPython.shadowns |
|
953 | 957 | |
|
954 | 958 | # Fill the history zero entry, user counter starts at 1 |
|
955 | 959 | self.input_hist.append('\n') |
|
956 | 960 | self.input_hist_raw.append('\n') |
|
957 | 961 | |
|
958 | 962 | def add_builtins(self): |
|
959 | 963 | """Store ipython references into the builtin namespace. |
|
960 | 964 | |
|
961 | 965 | Some parts of ipython operate via builtins injected here, which hold a |
|
962 | 966 | reference to IPython itself.""" |
|
963 | 967 | |
|
964 | 968 | # TODO: deprecate all of these, they are unsafe |
|
965 | 969 | builtins_new = dict(__IPYTHON__ = self, |
|
966 | 970 | ip_set_hook = self.set_hook, |
|
967 | 971 | jobs = self.jobs, |
|
968 | 972 | ipmagic = wrap_deprecated(self.ipmagic,'_ip.magic()'), |
|
969 | 973 | ipalias = wrap_deprecated(self.ipalias), |
|
970 | 974 | ipsystem = wrap_deprecated(self.ipsystem,'_ip.system()'), |
|
971 | 975 | #_ip = self.api |
|
972 | 976 | ) |
|
973 | 977 | for biname,bival in builtins_new.items(): |
|
974 | 978 | try: |
|
975 | 979 | # store the orignal value so we can restore it |
|
976 | 980 | self.builtins_added[biname] = __builtin__.__dict__[biname] |
|
977 | 981 | except KeyError: |
|
978 | 982 | # or mark that it wasn't defined, and we'll just delete it at |
|
979 | 983 | # cleanup |
|
980 | 984 | self.builtins_added[biname] = Undefined |
|
981 | 985 | __builtin__.__dict__[biname] = bival |
|
982 | 986 | |
|
983 | 987 | # Keep in the builtins a flag for when IPython is active. We set it |
|
984 | 988 | # with setdefault so that multiple nested IPythons don't clobber one |
|
985 | 989 | # another. Each will increase its value by one upon being activated, |
|
986 | 990 | # which also gives us a way to determine the nesting level. |
|
987 | 991 | __builtin__.__dict__.setdefault('__IPYTHON__active',0) |
|
988 | 992 | |
|
989 | 993 | def clean_builtins(self): |
|
990 | 994 | """Remove any builtins which might have been added by add_builtins, or |
|
991 | 995 | restore overwritten ones to their previous values.""" |
|
992 | 996 | for biname,bival in self.builtins_added.items(): |
|
993 | 997 | if bival is Undefined: |
|
994 | 998 | del __builtin__.__dict__[biname] |
|
995 | 999 | else: |
|
996 | 1000 | __builtin__.__dict__[biname] = bival |
|
997 | 1001 | self.builtins_added.clear() |
|
998 | 1002 | |
|
999 | 1003 | def set_hook(self,name,hook, priority = 50, str_key = None, re_key = None): |
|
1000 | 1004 | """set_hook(name,hook) -> sets an internal IPython hook. |
|
1001 | 1005 | |
|
1002 | 1006 | IPython exposes some of its internal API as user-modifiable hooks. By |
|
1003 | 1007 | adding your function to one of these hooks, you can modify IPython's |
|
1004 | 1008 | behavior to call at runtime your own routines.""" |
|
1005 | 1009 | |
|
1006 | 1010 | # At some point in the future, this should validate the hook before it |
|
1007 | 1011 | # accepts it. Probably at least check that the hook takes the number |
|
1008 | 1012 | # of args it's supposed to. |
|
1009 | 1013 | |
|
1010 | 1014 | f = new.instancemethod(hook,self,self.__class__) |
|
1011 | 1015 | |
|
1012 | 1016 | # check if the hook is for strdispatcher first |
|
1013 | 1017 | if str_key is not None: |
|
1014 | 1018 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
1015 | 1019 | sdp.add_s(str_key, f, priority ) |
|
1016 | 1020 | self.strdispatchers[name] = sdp |
|
1017 | 1021 | return |
|
1018 | 1022 | if re_key is not None: |
|
1019 | 1023 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
1020 | 1024 | sdp.add_re(re.compile(re_key), f, priority ) |
|
1021 | 1025 | self.strdispatchers[name] = sdp |
|
1022 | 1026 | return |
|
1023 | 1027 | |
|
1024 | 1028 | dp = getattr(self.hooks, name, None) |
|
1025 | 1029 | if name not in IPython.hooks.__all__: |
|
1026 | 1030 | print "Warning! Hook '%s' is not one of %s" % (name, IPython.hooks.__all__ ) |
|
1027 | 1031 | if not dp: |
|
1028 | 1032 | dp = IPython.hooks.CommandChainDispatcher() |
|
1029 | 1033 | |
|
1030 | 1034 | try: |
|
1031 | 1035 | dp.add(f,priority) |
|
1032 | 1036 | except AttributeError: |
|
1033 | 1037 | # it was not commandchain, plain old func - replace |
|
1034 | 1038 | dp = f |
|
1035 | 1039 | |
|
1036 | 1040 | setattr(self.hooks,name, dp) |
|
1037 | 1041 | |
|
1038 | 1042 | |
|
1039 | 1043 | #setattr(self.hooks,name,new.instancemethod(hook,self,self.__class__)) |
|
1040 | 1044 | |
|
1041 | 1045 | def set_crash_handler(self,crashHandler): |
|
1042 | 1046 | """Set the IPython crash handler. |
|
1043 | 1047 | |
|
1044 | 1048 | This must be a callable with a signature suitable for use as |
|
1045 | 1049 | sys.excepthook.""" |
|
1046 | 1050 | |
|
1047 | 1051 | # Install the given crash handler as the Python exception hook |
|
1048 | 1052 | sys.excepthook = crashHandler |
|
1049 | 1053 | |
|
1050 | 1054 | # The instance will store a pointer to this, so that runtime code |
|
1051 | 1055 | # (such as magics) can access it. This is because during the |
|
1052 | 1056 | # read-eval loop, it gets temporarily overwritten (to deal with GUI |
|
1053 | 1057 | # frameworks). |
|
1054 | 1058 | self.sys_excepthook = sys.excepthook |
|
1055 | 1059 | |
|
1056 | 1060 | |
|
1057 | 1061 | def set_custom_exc(self,exc_tuple,handler): |
|
1058 | 1062 | """set_custom_exc(exc_tuple,handler) |
|
1059 | 1063 | |
|
1060 | 1064 | Set a custom exception handler, which will be called if any of the |
|
1061 | 1065 | exceptions in exc_tuple occur in the mainloop (specifically, in the |
|
1062 | 1066 | runcode() method. |
|
1063 | 1067 | |
|
1064 | 1068 | Inputs: |
|
1065 | 1069 | |
|
1066 | 1070 | - exc_tuple: a *tuple* of valid exceptions to call the defined |
|
1067 | 1071 | handler for. It is very important that you use a tuple, and NOT A |
|
1068 | 1072 | LIST here, because of the way Python's except statement works. If |
|
1069 | 1073 | you only want to trap a single exception, use a singleton tuple: |
|
1070 | 1074 | |
|
1071 | 1075 | exc_tuple == (MyCustomException,) |
|
1072 | 1076 | |
|
1073 | 1077 | - handler: this must be defined as a function with the following |
|
1074 | 1078 | basic interface: def my_handler(self,etype,value,tb). |
|
1075 | 1079 | |
|
1076 | 1080 | This will be made into an instance method (via new.instancemethod) |
|
1077 | 1081 | of IPython itself, and it will be called if any of the exceptions |
|
1078 | 1082 | listed in the exc_tuple are caught. If the handler is None, an |
|
1079 | 1083 | internal basic one is used, which just prints basic info. |
|
1080 | 1084 | |
|
1081 | 1085 | WARNING: by putting in your own exception handler into IPython's main |
|
1082 | 1086 | execution loop, you run a very good chance of nasty crashes. This |
|
1083 | 1087 | facility should only be used if you really know what you are doing.""" |
|
1084 | 1088 | |
|
1085 | 1089 | assert type(exc_tuple)==type(()) , \ |
|
1086 | 1090 | "The custom exceptions must be given AS A TUPLE." |
|
1087 | 1091 | |
|
1088 | 1092 | def dummy_handler(self,etype,value,tb): |
|
1089 | 1093 | print '*** Simple custom exception handler ***' |
|
1090 | 1094 | print 'Exception type :',etype |
|
1091 | 1095 | print 'Exception value:',value |
|
1092 | 1096 | print 'Traceback :',tb |
|
1093 | 1097 | print 'Source code :','\n'.join(self.buffer) |
|
1094 | 1098 | |
|
1095 | 1099 | if handler is None: handler = dummy_handler |
|
1096 | 1100 | |
|
1097 | 1101 | self.CustomTB = new.instancemethod(handler,self,self.__class__) |
|
1098 | 1102 | self.custom_exceptions = exc_tuple |
|
1099 | 1103 | |
|
1100 | 1104 | def set_custom_completer(self,completer,pos=0): |
|
1101 | 1105 | """set_custom_completer(completer,pos=0) |
|
1102 | 1106 | |
|
1103 | 1107 | Adds a new custom completer function. |
|
1104 | 1108 | |
|
1105 | 1109 | The position argument (defaults to 0) is the index in the completers |
|
1106 | 1110 | list where you want the completer to be inserted.""" |
|
1107 | 1111 | |
|
1108 | 1112 | newcomp = new.instancemethod(completer,self.Completer, |
|
1109 | 1113 | self.Completer.__class__) |
|
1110 | 1114 | self.Completer.matchers.insert(pos,newcomp) |
|
1111 | 1115 | |
|
1112 | 1116 | def set_completer(self): |
|
1113 | 1117 | """reset readline's completer to be our own.""" |
|
1114 | 1118 | self.readline.set_completer(self.Completer.complete) |
|
1115 | 1119 | |
|
1116 | 1120 | def _get_call_pdb(self): |
|
1117 | 1121 | return self._call_pdb |
|
1118 | 1122 | |
|
1119 | 1123 | def _set_call_pdb(self,val): |
|
1120 | 1124 | |
|
1121 | 1125 | if val not in (0,1,False,True): |
|
1122 | 1126 | raise ValueError,'new call_pdb value must be boolean' |
|
1123 | 1127 | |
|
1124 | 1128 | # store value in instance |
|
1125 | 1129 | self._call_pdb = val |
|
1126 | 1130 | |
|
1127 | 1131 | # notify the actual exception handlers |
|
1128 | 1132 | self.InteractiveTB.call_pdb = val |
|
1129 | 1133 | if self.isthreaded: |
|
1130 | 1134 | try: |
|
1131 | 1135 | self.sys_excepthook.call_pdb = val |
|
1132 | 1136 | except: |
|
1133 | 1137 | warn('Failed to activate pdb for threaded exception handler') |
|
1134 | 1138 | |
|
1135 | 1139 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, |
|
1136 | 1140 | 'Control auto-activation of pdb at exceptions') |
|
1137 | 1141 | |
|
1138 | 1142 | # These special functions get installed in the builtin namespace, to |
|
1139 | 1143 | # provide programmatic (pure python) access to magics, aliases and system |
|
1140 | 1144 | # calls. This is important for logging, user scripting, and more. |
|
1141 | 1145 | |
|
1142 | 1146 | # We are basically exposing, via normal python functions, the three |
|
1143 | 1147 | # mechanisms in which ipython offers special call modes (magics for |
|
1144 | 1148 | # internal control, aliases for direct system access via pre-selected |
|
1145 | 1149 | # names, and !cmd for calling arbitrary system commands). |
|
1146 | 1150 | |
|
1147 | 1151 | def ipmagic(self,arg_s): |
|
1148 | 1152 | """Call a magic function by name. |
|
1149 | 1153 | |
|
1150 | 1154 | Input: a string containing the name of the magic function to call and any |
|
1151 | 1155 | additional arguments to be passed to the magic. |
|
1152 | 1156 | |
|
1153 | 1157 | ipmagic('name -opt foo bar') is equivalent to typing at the ipython |
|
1154 | 1158 | prompt: |
|
1155 | 1159 | |
|
1156 | 1160 | In[1]: %name -opt foo bar |
|
1157 | 1161 | |
|
1158 | 1162 | To call a magic without arguments, simply use ipmagic('name'). |
|
1159 | 1163 | |
|
1160 | 1164 | This provides a proper Python function to call IPython's magics in any |
|
1161 | 1165 | valid Python code you can type at the interpreter, including loops and |
|
1162 | 1166 | compound statements. It is added by IPython to the Python builtin |
|
1163 | 1167 | namespace upon initialization.""" |
|
1164 | 1168 | |
|
1165 | 1169 | args = arg_s.split(' ',1) |
|
1166 | 1170 | magic_name = args[0] |
|
1167 | 1171 | magic_name = magic_name.lstrip(self.ESC_MAGIC) |
|
1168 | 1172 | |
|
1169 | 1173 | try: |
|
1170 | 1174 | magic_args = args[1] |
|
1171 | 1175 | except IndexError: |
|
1172 | 1176 | magic_args = '' |
|
1173 | 1177 | fn = getattr(self,'magic_'+magic_name,None) |
|
1174 | 1178 | if fn is None: |
|
1175 | 1179 | error("Magic function `%s` not found." % magic_name) |
|
1176 | 1180 | else: |
|
1177 | 1181 | magic_args = self.var_expand(magic_args,1) |
|
1178 | 1182 | return fn(magic_args) |
|
1179 | 1183 | |
|
1180 | 1184 | def ipalias(self,arg_s): |
|
1181 | 1185 | """Call an alias by name. |
|
1182 | 1186 | |
|
1183 | 1187 | Input: a string containing the name of the alias to call and any |
|
1184 | 1188 | additional arguments to be passed to the magic. |
|
1185 | 1189 | |
|
1186 | 1190 | ipalias('name -opt foo bar') is equivalent to typing at the ipython |
|
1187 | 1191 | prompt: |
|
1188 | 1192 | |
|
1189 | 1193 | In[1]: name -opt foo bar |
|
1190 | 1194 | |
|
1191 | 1195 | To call an alias without arguments, simply use ipalias('name'). |
|
1192 | 1196 | |
|
1193 | 1197 | This provides a proper Python function to call IPython's aliases in any |
|
1194 | 1198 | valid Python code you can type at the interpreter, including loops and |
|
1195 | 1199 | compound statements. It is added by IPython to the Python builtin |
|
1196 | 1200 | namespace upon initialization.""" |
|
1197 | 1201 | |
|
1198 | 1202 | args = arg_s.split(' ',1) |
|
1199 | 1203 | alias_name = args[0] |
|
1200 | 1204 | try: |
|
1201 | 1205 | alias_args = args[1] |
|
1202 | 1206 | except IndexError: |
|
1203 | 1207 | alias_args = '' |
|
1204 | 1208 | if alias_name in self.alias_table: |
|
1205 | 1209 | self.call_alias(alias_name,alias_args) |
|
1206 | 1210 | else: |
|
1207 | 1211 | error("Alias `%s` not found." % alias_name) |
|
1208 | 1212 | |
|
1209 | 1213 | def ipsystem(self,arg_s): |
|
1210 | 1214 | """Make a system call, using IPython.""" |
|
1211 | 1215 | |
|
1212 | 1216 | self.system(arg_s) |
|
1213 | 1217 | |
|
1214 | 1218 | def complete(self,text): |
|
1215 | 1219 | """Return a sorted list of all possible completions on text. |
|
1216 | 1220 | |
|
1217 | 1221 | Inputs: |
|
1218 | 1222 | |
|
1219 | 1223 | - text: a string of text to be completed on. |
|
1220 | 1224 | |
|
1221 | 1225 | This is a wrapper around the completion mechanism, similar to what |
|
1222 | 1226 | readline does at the command line when the TAB key is hit. By |
|
1223 | 1227 | exposing it as a method, it can be used by other non-readline |
|
1224 | 1228 | environments (such as GUIs) for text completion. |
|
1225 | 1229 | |
|
1226 | 1230 | Simple usage example: |
|
1227 | 1231 | |
|
1228 | 1232 | In [7]: x = 'hello' |
|
1229 | 1233 | |
|
1230 | 1234 | In [8]: x |
|
1231 | 1235 | Out[8]: 'hello' |
|
1232 | 1236 | |
|
1233 | 1237 | In [9]: print x |
|
1234 | 1238 | hello |
|
1235 | 1239 | |
|
1236 | 1240 | In [10]: _ip.IP.complete('x.l') |
|
1237 | 1241 | Out[10]: ['x.ljust', 'x.lower', 'x.lstrip'] |
|
1238 | 1242 | """ |
|
1239 | 1243 | |
|
1240 | 1244 | complete = self.Completer.complete |
|
1241 | 1245 | state = 0 |
|
1242 | 1246 | # use a dict so we get unique keys, since ipyhton's multiple |
|
1243 | 1247 | # completers can return duplicates. When we make 2.4 a requirement, |
|
1244 | 1248 | # start using sets instead, which are faster. |
|
1245 | 1249 | comps = {} |
|
1246 | 1250 | while True: |
|
1247 | 1251 | newcomp = complete(text,state,line_buffer=text) |
|
1248 | 1252 | if newcomp is None: |
|
1249 | 1253 | break |
|
1250 | 1254 | comps[newcomp] = 1 |
|
1251 | 1255 | state += 1 |
|
1252 | 1256 | outcomps = comps.keys() |
|
1253 | 1257 | outcomps.sort() |
|
1254 | 1258 | #print "T:",text,"OC:",outcomps # dbg |
|
1255 | 1259 | #print "vars:",self.user_ns.keys() |
|
1256 | 1260 | return outcomps |
|
1257 | 1261 | |
|
1258 | 1262 | def set_completer_frame(self, frame=None): |
|
1259 | 1263 | if frame: |
|
1260 | 1264 | self.Completer.namespace = frame.f_locals |
|
1261 | 1265 | self.Completer.global_namespace = frame.f_globals |
|
1262 | 1266 | else: |
|
1263 | 1267 | self.Completer.namespace = self.user_ns |
|
1264 | 1268 | self.Completer.global_namespace = self.user_global_ns |
|
1265 | 1269 | |
|
1266 | 1270 | def init_auto_alias(self): |
|
1267 | 1271 | """Define some aliases automatically. |
|
1268 | 1272 | |
|
1269 | 1273 | These are ALL parameter-less aliases""" |
|
1270 | 1274 | |
|
1271 | 1275 | for alias,cmd in self.auto_alias: |
|
1272 | 1276 | self.getapi().defalias(alias,cmd) |
|
1273 | 1277 | |
|
1274 | 1278 | |
|
1275 | 1279 | def alias_table_validate(self,verbose=0): |
|
1276 | 1280 | """Update information about the alias table. |
|
1277 | 1281 | |
|
1278 | 1282 | In particular, make sure no Python keywords/builtins are in it.""" |
|
1279 | 1283 | |
|
1280 | 1284 | no_alias = self.no_alias |
|
1281 | 1285 | for k in self.alias_table.keys(): |
|
1282 | 1286 | if k in no_alias: |
|
1283 | 1287 | del self.alias_table[k] |
|
1284 | 1288 | if verbose: |
|
1285 | 1289 | print ("Deleting alias <%s>, it's a Python " |
|
1286 | 1290 | "keyword or builtin." % k) |
|
1287 | 1291 | |
|
1288 | 1292 | def set_autoindent(self,value=None): |
|
1289 | 1293 | """Set the autoindent flag, checking for readline support. |
|
1290 | 1294 | |
|
1291 | 1295 | If called with no arguments, it acts as a toggle.""" |
|
1292 | 1296 | |
|
1293 | 1297 | if not self.has_readline: |
|
1294 | 1298 | if os.name == 'posix': |
|
1295 | 1299 | warn("The auto-indent feature requires the readline library") |
|
1296 | 1300 | self.autoindent = 0 |
|
1297 | 1301 | return |
|
1298 | 1302 | if value is None: |
|
1299 | 1303 | self.autoindent = not self.autoindent |
|
1300 | 1304 | else: |
|
1301 | 1305 | self.autoindent = value |
|
1302 | 1306 | |
|
1303 | 1307 | def rc_set_toggle(self,rc_field,value=None): |
|
1304 | 1308 | """Set or toggle a field in IPython's rc config. structure. |
|
1305 | 1309 | |
|
1306 | 1310 | If called with no arguments, it acts as a toggle. |
|
1307 | 1311 | |
|
1308 | 1312 | If called with a non-existent field, the resulting AttributeError |
|
1309 | 1313 | exception will propagate out.""" |
|
1310 | 1314 | |
|
1311 | 1315 | rc_val = getattr(self.rc,rc_field) |
|
1312 | 1316 | if value is None: |
|
1313 | 1317 | value = not rc_val |
|
1314 | 1318 | setattr(self.rc,rc_field,value) |
|
1315 | 1319 | |
|
1316 | 1320 | def user_setup(self,ipythondir,rc_suffix,mode='install'): |
|
1317 | 1321 | """Install the user configuration directory. |
|
1318 | 1322 | |
|
1319 | 1323 | Note |
|
1320 | 1324 | ---- |
|
1321 | 1325 | DEPRECATED: use the top-level user_setup() function instead. |
|
1322 | 1326 | """ |
|
1323 | 1327 | return user_setup(ipythondir,rc_suffix,mode) |
|
1324 | 1328 | |
|
1325 | 1329 | def atexit_operations(self): |
|
1326 | 1330 | """This will be executed at the time of exit. |
|
1327 | 1331 | |
|
1328 | 1332 | Saving of persistent data should be performed here. """ |
|
1329 | 1333 | |
|
1330 | 1334 | #print '*** IPython exit cleanup ***' # dbg |
|
1331 | 1335 | # input history |
|
1332 | 1336 | self.savehist() |
|
1333 | 1337 | |
|
1334 | 1338 | # Cleanup all tempfiles left around |
|
1335 | 1339 | for tfile in self.tempfiles: |
|
1336 | 1340 | try: |
|
1337 | 1341 | os.unlink(tfile) |
|
1338 | 1342 | except OSError: |
|
1339 | 1343 | pass |
|
1340 | 1344 | |
|
1341 | 1345 | # Clear all user namespaces to release all references cleanly. |
|
1342 | 1346 | self.reset() |
|
1343 | 1347 | |
|
1344 | 1348 | # Run user hooks |
|
1345 | 1349 | self.hooks.shutdown_hook() |
|
1346 | 1350 | |
|
1347 | 1351 | def reset(self): |
|
1348 | 1352 | """Clear all internal namespaces. |
|
1349 | 1353 | |
|
1350 | 1354 | Note that this is much more aggressive than %reset, since it clears |
|
1351 | 1355 | fully all namespaces, as well as all input/output lists. |
|
1352 | 1356 | """ |
|
1353 | 1357 | for ns in self.ns_refs_table: |
|
1354 | 1358 | ns.clear() |
|
1355 | 1359 | |
|
1356 | 1360 | # Clear input and output histories |
|
1357 | 1361 | self.input_hist[:] = [] |
|
1358 | 1362 | self.input_hist_raw[:] = [] |
|
1359 | 1363 | self.output_hist.clear() |
|
1360 | 1364 | # Restore the user namespaces to minimal usability |
|
1361 | 1365 | self.init_namespaces() |
|
1362 | 1366 | |
|
1363 | 1367 | def savehist(self): |
|
1364 | 1368 | """Save input history to a file (via readline library).""" |
|
1365 | 1369 | |
|
1366 | 1370 | if not self.has_readline: |
|
1367 | 1371 | return |
|
1368 | 1372 | |
|
1369 | 1373 | try: |
|
1370 | 1374 | self.readline.write_history_file(self.histfile) |
|
1371 | 1375 | except: |
|
1372 | 1376 | print 'Unable to save IPython command history to file: ' + \ |
|
1373 | 1377 | `self.histfile` |
|
1374 | 1378 | |
|
1375 | 1379 | def reloadhist(self): |
|
1376 | 1380 | """Reload the input history from disk file.""" |
|
1377 | 1381 | |
|
1378 | 1382 | if self.has_readline: |
|
1379 | 1383 | try: |
|
1380 | 1384 | self.readline.clear_history() |
|
1381 | 1385 | self.readline.read_history_file(self.shell.histfile) |
|
1382 | 1386 | except AttributeError: |
|
1383 | 1387 | pass |
|
1384 | 1388 | |
|
1385 | 1389 | |
|
1386 | 1390 | def history_saving_wrapper(self, func): |
|
1387 | 1391 | """ Wrap func for readline history saving |
|
1388 | 1392 | |
|
1389 | 1393 | Convert func into callable that saves & restores |
|
1390 | 1394 | history around the call """ |
|
1391 | 1395 | |
|
1392 | 1396 | if not self.has_readline: |
|
1393 | 1397 | return func |
|
1394 | 1398 | |
|
1395 | 1399 | def wrapper(): |
|
1396 | 1400 | self.savehist() |
|
1397 | 1401 | try: |
|
1398 | 1402 | func() |
|
1399 | 1403 | finally: |
|
1400 | 1404 | readline.read_history_file(self.histfile) |
|
1401 | 1405 | return wrapper |
|
1402 | 1406 | |
|
1403 | 1407 | def pre_readline(self): |
|
1404 | 1408 | """readline hook to be used at the start of each line. |
|
1405 | 1409 | |
|
1406 | 1410 | Currently it handles auto-indent only.""" |
|
1407 | 1411 | |
|
1408 | 1412 | #debugx('self.indent_current_nsp','pre_readline:') |
|
1409 | 1413 | |
|
1410 | 1414 | if self.rl_do_indent: |
|
1411 | 1415 | self.readline.insert_text(self.indent_current_str()) |
|
1412 | 1416 | if self.rl_next_input is not None: |
|
1413 | 1417 | self.readline.insert_text(self.rl_next_input) |
|
1414 | 1418 | self.rl_next_input = None |
|
1415 | 1419 | |
|
1416 | 1420 | def init_readline(self): |
|
1417 | 1421 | """Command history completion/saving/reloading.""" |
|
1418 | 1422 | |
|
1419 | 1423 | |
|
1420 | 1424 | import IPython.rlineimpl as readline |
|
1421 | 1425 | |
|
1422 | 1426 | if not readline.have_readline: |
|
1423 | 1427 | self.has_readline = 0 |
|
1424 | 1428 | self.readline = None |
|
1425 | 1429 | # no point in bugging windows users with this every time: |
|
1426 | 1430 | warn('Readline services not available on this platform.') |
|
1427 | 1431 | else: |
|
1428 | 1432 | sys.modules['readline'] = readline |
|
1429 | 1433 | import atexit |
|
1430 | 1434 | from IPython.completer import IPCompleter |
|
1431 | 1435 | self.Completer = IPCompleter(self, |
|
1432 | 1436 | self.user_ns, |
|
1433 | 1437 | self.user_global_ns, |
|
1434 | 1438 | self.rc.readline_omit__names, |
|
1435 | 1439 | self.alias_table) |
|
1436 | 1440 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) |
|
1437 | 1441 | self.strdispatchers['complete_command'] = sdisp |
|
1438 | 1442 | self.Completer.custom_completers = sdisp |
|
1439 | 1443 | # Platform-specific configuration |
|
1440 | 1444 | if os.name == 'nt': |
|
1441 | 1445 | self.readline_startup_hook = readline.set_pre_input_hook |
|
1442 | 1446 | else: |
|
1443 | 1447 | self.readline_startup_hook = readline.set_startup_hook |
|
1444 | 1448 | |
|
1445 | 1449 | # Load user's initrc file (readline config) |
|
1446 | 1450 | # Or if libedit is used, load editrc. |
|
1447 | 1451 | inputrc_name = os.environ.get('INPUTRC') |
|
1448 | 1452 | if inputrc_name is None: |
|
1449 | 1453 | home_dir = get_home_dir() |
|
1450 | 1454 | if home_dir is not None: |
|
1451 | 1455 | inputrc_name = '.inputrc' |
|
1452 | 1456 | if readline.uses_libedit: |
|
1453 | 1457 | inputrc_name = '.editrc' |
|
1454 | 1458 | inputrc_name = os.path.join(home_dir, inputrc_name) |
|
1455 | 1459 | if os.path.isfile(inputrc_name): |
|
1456 | 1460 | try: |
|
1457 | 1461 | readline.read_init_file(inputrc_name) |
|
1458 | 1462 | except: |
|
1459 | 1463 | warn('Problems reading readline initialization file <%s>' |
|
1460 | 1464 | % inputrc_name) |
|
1461 | 1465 | |
|
1462 | 1466 | self.has_readline = 1 |
|
1463 | 1467 | self.readline = readline |
|
1464 | 1468 | # save this in sys so embedded copies can restore it properly |
|
1465 | 1469 | sys.ipcompleter = self.Completer.complete |
|
1466 | 1470 | self.set_completer() |
|
1467 | 1471 | |
|
1468 | 1472 | # Configure readline according to user's prefs |
|
1469 | 1473 | # This is only done if GNU readline is being used. If libedit |
|
1470 | 1474 | # is being used (as on Leopard) the readline config is |
|
1471 | 1475 | # not run as the syntax for libedit is different. |
|
1472 | 1476 | if not readline.uses_libedit: |
|
1473 | 1477 | for rlcommand in self.rc.readline_parse_and_bind: |
|
1474 | 1478 | #print "loading rl:",rlcommand # dbg |
|
1475 | 1479 | readline.parse_and_bind(rlcommand) |
|
1476 | 1480 | |
|
1477 |
# |
|
|
1478 | delims = readline.get_completer_delims() | |
|
1481 | # Remove some chars from the delimiters list. If we encounter | |
|
1482 | # unicode chars, discard them. | |
|
1483 | delims = readline.get_completer_delims().encode("ascii", "ignore") | |
|
1479 | 1484 | delims = delims.translate(string._idmap, |
|
1480 | 1485 | self.rc.readline_remove_delims) |
|
1481 | 1486 | readline.set_completer_delims(delims) |
|
1482 | 1487 | # otherwise we end up with a monster history after a while: |
|
1483 | 1488 | readline.set_history_length(1000) |
|
1484 | 1489 | try: |
|
1485 | 1490 | #print '*** Reading readline history' # dbg |
|
1486 | 1491 | readline.read_history_file(self.histfile) |
|
1487 | 1492 | except IOError: |
|
1488 | 1493 | pass # It doesn't exist yet. |
|
1489 | 1494 | |
|
1490 | 1495 | atexit.register(self.atexit_operations) |
|
1491 | 1496 | del atexit |
|
1492 | 1497 | |
|
1493 | 1498 | # Configure auto-indent for all platforms |
|
1494 | 1499 | self.set_autoindent(self.rc.autoindent) |
|
1495 | 1500 | |
|
1496 | 1501 | def ask_yes_no(self,prompt,default=True): |
|
1497 | 1502 | if self.rc.quiet: |
|
1498 | 1503 | return True |
|
1499 | 1504 | return ask_yes_no(prompt,default) |
|
1500 | 1505 | |
|
1501 | 1506 | def new_main_mod(self,ns=None): |
|
1502 | 1507 | """Return a new 'main' module object for user code execution. |
|
1503 | 1508 | """ |
|
1504 | 1509 | main_mod = self._user_main_module |
|
1505 | 1510 | init_fakemod_dict(main_mod,ns) |
|
1506 | 1511 | return main_mod |
|
1507 | 1512 | |
|
1508 | 1513 | def cache_main_mod(self,ns,fname): |
|
1509 | 1514 | """Cache a main module's namespace. |
|
1510 | 1515 | |
|
1511 | 1516 | When scripts are executed via %run, we must keep a reference to the |
|
1512 | 1517 | namespace of their __main__ module (a FakeModule instance) around so |
|
1513 | 1518 | that Python doesn't clear it, rendering objects defined therein |
|
1514 | 1519 | useless. |
|
1515 | 1520 | |
|
1516 | 1521 | This method keeps said reference in a private dict, keyed by the |
|
1517 | 1522 | absolute path of the module object (which corresponds to the script |
|
1518 | 1523 | path). This way, for multiple executions of the same script we only |
|
1519 | 1524 | keep one copy of the namespace (the last one), thus preventing memory |
|
1520 | 1525 | leaks from old references while allowing the objects from the last |
|
1521 | 1526 | execution to be accessible. |
|
1522 | 1527 | |
|
1523 | 1528 | Note: we can not allow the actual FakeModule instances to be deleted, |
|
1524 | 1529 | because of how Python tears down modules (it hard-sets all their |
|
1525 | 1530 | references to None without regard for reference counts). This method |
|
1526 | 1531 | must therefore make a *copy* of the given namespace, to allow the |
|
1527 | 1532 | original module's __dict__ to be cleared and reused. |
|
1528 | 1533 | |
|
1529 | 1534 | |
|
1530 | 1535 | Parameters |
|
1531 | 1536 | ---------- |
|
1532 | 1537 | ns : a namespace (a dict, typically) |
|
1533 | 1538 | |
|
1534 | 1539 | fname : str |
|
1535 | 1540 | Filename associated with the namespace. |
|
1536 | 1541 | |
|
1537 | 1542 | Examples |
|
1538 | 1543 | -------- |
|
1539 | 1544 | |
|
1540 | 1545 | In [10]: import IPython |
|
1541 | 1546 | |
|
1542 | 1547 | In [11]: _ip.IP.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
1543 | 1548 | |
|
1544 | 1549 | In [12]: IPython.__file__ in _ip.IP._main_ns_cache |
|
1545 | 1550 | Out[12]: True |
|
1546 | 1551 | """ |
|
1547 | 1552 | self._main_ns_cache[os.path.abspath(fname)] = ns.copy() |
|
1548 | 1553 | |
|
1549 | 1554 | def clear_main_mod_cache(self): |
|
1550 | 1555 | """Clear the cache of main modules. |
|
1551 | 1556 | |
|
1552 | 1557 | Mainly for use by utilities like %reset. |
|
1553 | 1558 | |
|
1554 | 1559 | Examples |
|
1555 | 1560 | -------- |
|
1556 | 1561 | |
|
1557 | 1562 | In [15]: import IPython |
|
1558 | 1563 | |
|
1559 | 1564 | In [16]: _ip.IP.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
1560 | 1565 | |
|
1561 | 1566 | In [17]: len(_ip.IP._main_ns_cache) > 0 |
|
1562 | 1567 | Out[17]: True |
|
1563 | 1568 | |
|
1564 | 1569 | In [18]: _ip.IP.clear_main_mod_cache() |
|
1565 | 1570 | |
|
1566 | 1571 | In [19]: len(_ip.IP._main_ns_cache) == 0 |
|
1567 | 1572 | Out[19]: True |
|
1568 | 1573 | """ |
|
1569 | 1574 | self._main_ns_cache.clear() |
|
1570 | 1575 | |
|
1571 | 1576 | def _should_recompile(self,e): |
|
1572 | 1577 | """Utility routine for edit_syntax_error""" |
|
1573 | 1578 | |
|
1574 | 1579 | if e.filename in ('<ipython console>','<input>','<string>', |
|
1575 | 1580 | '<console>','<BackgroundJob compilation>', |
|
1576 | 1581 | None): |
|
1577 | 1582 | |
|
1578 | 1583 | return False |
|
1579 | 1584 | try: |
|
1580 | 1585 | if (self.rc.autoedit_syntax and |
|
1581 | 1586 | not self.ask_yes_no('Return to editor to correct syntax error? ' |
|
1582 | 1587 | '[Y/n] ','y')): |
|
1583 | 1588 | return False |
|
1584 | 1589 | except EOFError: |
|
1585 | 1590 | return False |
|
1586 | 1591 | |
|
1587 | 1592 | def int0(x): |
|
1588 | 1593 | try: |
|
1589 | 1594 | return int(x) |
|
1590 | 1595 | except TypeError: |
|
1591 | 1596 | return 0 |
|
1592 | 1597 | # always pass integer line and offset values to editor hook |
|
1593 | 1598 | try: |
|
1594 | 1599 | self.hooks.fix_error_editor(e.filename, |
|
1595 | 1600 | int0(e.lineno),int0(e.offset),e.msg) |
|
1596 | 1601 | except IPython.ipapi.TryNext: |
|
1597 | 1602 | warn('Could not open editor') |
|
1598 | 1603 | return False |
|
1599 | 1604 | return True |
|
1600 | 1605 | |
|
1601 | 1606 | def edit_syntax_error(self): |
|
1602 | 1607 | """The bottom half of the syntax error handler called in the main loop. |
|
1603 | 1608 | |
|
1604 | 1609 | Loop until syntax error is fixed or user cancels. |
|
1605 | 1610 | """ |
|
1606 | 1611 | |
|
1607 | 1612 | while self.SyntaxTB.last_syntax_error: |
|
1608 | 1613 | # copy and clear last_syntax_error |
|
1609 | 1614 | err = self.SyntaxTB.clear_err_state() |
|
1610 | 1615 | if not self._should_recompile(err): |
|
1611 | 1616 | return |
|
1612 | 1617 | try: |
|
1613 | 1618 | # may set last_syntax_error again if a SyntaxError is raised |
|
1614 | 1619 | self.safe_execfile(err.filename,self.user_ns) |
|
1615 | 1620 | except: |
|
1616 | 1621 | self.showtraceback() |
|
1617 | 1622 | else: |
|
1618 | 1623 | try: |
|
1619 | 1624 | f = file(err.filename) |
|
1620 | 1625 | try: |
|
1621 | 1626 | sys.displayhook(f.read()) |
|
1622 | 1627 | finally: |
|
1623 | 1628 | f.close() |
|
1624 | 1629 | except: |
|
1625 | 1630 | self.showtraceback() |
|
1626 | 1631 | |
|
1627 | 1632 | def showsyntaxerror(self, filename=None): |
|
1628 | 1633 | """Display the syntax error that just occurred. |
|
1629 | 1634 | |
|
1630 | 1635 | This doesn't display a stack trace because there isn't one. |
|
1631 | 1636 | |
|
1632 | 1637 | If a filename is given, it is stuffed in the exception instead |
|
1633 | 1638 | of what was there before (because Python's parser always uses |
|
1634 | 1639 | "<string>" when reading from a string). |
|
1635 | 1640 | """ |
|
1636 | 1641 | etype, value, last_traceback = sys.exc_info() |
|
1637 | 1642 | |
|
1638 | 1643 | # See note about these variables in showtraceback() below |
|
1639 | 1644 | sys.last_type = etype |
|
1640 | 1645 | sys.last_value = value |
|
1641 | 1646 | sys.last_traceback = last_traceback |
|
1642 | 1647 | |
|
1643 | 1648 | if filename and etype is SyntaxError: |
|
1644 | 1649 | # Work hard to stuff the correct filename in the exception |
|
1645 | 1650 | try: |
|
1646 | 1651 | msg, (dummy_filename, lineno, offset, line) = value |
|
1647 | 1652 | except: |
|
1648 | 1653 | # Not the format we expect; leave it alone |
|
1649 | 1654 | pass |
|
1650 | 1655 | else: |
|
1651 | 1656 | # Stuff in the right filename |
|
1652 | 1657 | try: |
|
1653 | 1658 | # Assume SyntaxError is a class exception |
|
1654 | 1659 | value = SyntaxError(msg, (filename, lineno, offset, line)) |
|
1655 | 1660 | except: |
|
1656 | 1661 | # If that failed, assume SyntaxError is a string |
|
1657 | 1662 | value = msg, (filename, lineno, offset, line) |
|
1658 | 1663 | self.SyntaxTB(etype,value,[]) |
|
1659 | 1664 | |
|
1660 | 1665 | def debugger(self,force=False): |
|
1661 | 1666 | """Call the pydb/pdb debugger. |
|
1662 | 1667 | |
|
1663 | 1668 | Keywords: |
|
1664 | 1669 | |
|
1665 | 1670 | - force(False): by default, this routine checks the instance call_pdb |
|
1666 | 1671 | flag and does not actually invoke the debugger if the flag is false. |
|
1667 | 1672 | The 'force' option forces the debugger to activate even if the flag |
|
1668 | 1673 | is false. |
|
1669 | 1674 | """ |
|
1670 | 1675 | |
|
1671 | 1676 | if not (force or self.call_pdb): |
|
1672 | 1677 | return |
|
1673 | 1678 | |
|
1674 | 1679 | if not hasattr(sys,'last_traceback'): |
|
1675 | 1680 | error('No traceback has been produced, nothing to debug.') |
|
1676 | 1681 | return |
|
1677 | 1682 | |
|
1678 | 1683 | # use pydb if available |
|
1679 | 1684 | if Debugger.has_pydb: |
|
1680 | 1685 | from pydb import pm |
|
1681 | 1686 | else: |
|
1682 | 1687 | # fallback to our internal debugger |
|
1683 | 1688 | pm = lambda : self.InteractiveTB.debugger(force=True) |
|
1684 | 1689 | self.history_saving_wrapper(pm)() |
|
1685 | 1690 | |
|
1686 | 1691 | def showtraceback(self,exc_tuple = None,filename=None,tb_offset=None): |
|
1687 | 1692 | """Display the exception that just occurred. |
|
1688 | 1693 | |
|
1689 | 1694 | If nothing is known about the exception, this is the method which |
|
1690 | 1695 | should be used throughout the code for presenting user tracebacks, |
|
1691 | 1696 | rather than directly invoking the InteractiveTB object. |
|
1692 | 1697 | |
|
1693 | 1698 | A specific showsyntaxerror() also exists, but this method can take |
|
1694 | 1699 | care of calling it if needed, so unless you are explicitly catching a |
|
1695 | 1700 | SyntaxError exception, don't try to analyze the stack manually and |
|
1696 | 1701 | simply call this method.""" |
|
1697 | 1702 | |
|
1698 | 1703 | |
|
1699 | 1704 | # Though this won't be called by syntax errors in the input line, |
|
1700 | 1705 | # there may be SyntaxError cases whith imported code. |
|
1701 | 1706 | |
|
1702 | 1707 | try: |
|
1703 | 1708 | if exc_tuple is None: |
|
1704 | 1709 | etype, value, tb = sys.exc_info() |
|
1705 | 1710 | else: |
|
1706 | 1711 | etype, value, tb = exc_tuple |
|
1707 | 1712 | |
|
1708 | 1713 | if etype is SyntaxError: |
|
1709 | 1714 | self.showsyntaxerror(filename) |
|
1710 | 1715 | elif etype is IPython.ipapi.UsageError: |
|
1711 | 1716 | print "UsageError:", value |
|
1712 | 1717 | else: |
|
1713 | 1718 | # WARNING: these variables are somewhat deprecated and not |
|
1714 | 1719 | # necessarily safe to use in a threaded environment, but tools |
|
1715 | 1720 | # like pdb depend on their existence, so let's set them. If we |
|
1716 | 1721 | # find problems in the field, we'll need to revisit their use. |
|
1717 | 1722 | sys.last_type = etype |
|
1718 | 1723 | sys.last_value = value |
|
1719 | 1724 | sys.last_traceback = tb |
|
1720 | 1725 | |
|
1721 | 1726 | if etype in self.custom_exceptions: |
|
1722 | 1727 | self.CustomTB(etype,value,tb) |
|
1723 | 1728 | else: |
|
1724 | 1729 | self.InteractiveTB(etype,value,tb,tb_offset=tb_offset) |
|
1725 | 1730 | if self.InteractiveTB.call_pdb and self.has_readline: |
|
1726 | 1731 | # pdb mucks up readline, fix it back |
|
1727 | 1732 | self.set_completer() |
|
1728 | 1733 | except KeyboardInterrupt: |
|
1729 | 1734 | self.write("\nKeyboardInterrupt\n") |
|
1730 | 1735 | |
|
1731 | 1736 | def mainloop(self,banner=None): |
|
1732 | 1737 | """Creates the local namespace and starts the mainloop. |
|
1733 | 1738 | |
|
1734 | 1739 | If an optional banner argument is given, it will override the |
|
1735 | 1740 | internally created default banner.""" |
|
1736 | 1741 | |
|
1737 | 1742 | if self.rc.c: # Emulate Python's -c option |
|
1738 | 1743 | self.exec_init_cmd() |
|
1739 | 1744 | if banner is None: |
|
1740 | 1745 | if not self.rc.banner: |
|
1741 | 1746 | banner = '' |
|
1742 | 1747 | # banner is string? Use it directly! |
|
1743 | 1748 | elif isinstance(self.rc.banner,basestring): |
|
1744 | 1749 | banner = self.rc.banner |
|
1745 | 1750 | else: |
|
1746 | 1751 | banner = self.BANNER+self.banner2 |
|
1747 | 1752 | |
|
1748 | 1753 | # if you run stuff with -c <cmd>, raw hist is not updated |
|
1749 | 1754 | # ensure that it's in sync |
|
1750 | 1755 | if len(self.input_hist) != len (self.input_hist_raw): |
|
1751 | 1756 | self.input_hist_raw = InputList(self.input_hist) |
|
1752 | 1757 | |
|
1753 | 1758 | while 1: |
|
1754 | 1759 | try: |
|
1755 | 1760 | self.interact(banner) |
|
1756 | 1761 | #self.interact_with_readline() |
|
1757 | 1762 | |
|
1758 | 1763 | # XXX for testing of a readline-decoupled repl loop, call |
|
1759 | 1764 | # interact_with_readline above |
|
1760 | 1765 | |
|
1761 | 1766 | break |
|
1762 | 1767 | except KeyboardInterrupt: |
|
1763 | 1768 | # this should not be necessary, but KeyboardInterrupt |
|
1764 | 1769 | # handling seems rather unpredictable... |
|
1765 | 1770 | self.write("\nKeyboardInterrupt in interact()\n") |
|
1766 | 1771 | |
|
1767 | 1772 | def exec_init_cmd(self): |
|
1768 | 1773 | """Execute a command given at the command line. |
|
1769 | 1774 | |
|
1770 | 1775 | This emulates Python's -c option.""" |
|
1771 | 1776 | |
|
1772 | 1777 | #sys.argv = ['-c'] |
|
1773 | 1778 | self.push(self.prefilter(self.rc.c, False)) |
|
1774 | 1779 | if not self.rc.interact: |
|
1775 | 1780 | self.ask_exit() |
|
1776 | 1781 | |
|
1777 | 1782 | def embed_mainloop(self,header='',local_ns=None,global_ns=None,stack_depth=0): |
|
1778 | 1783 | """Embeds IPython into a running python program. |
|
1779 | 1784 | |
|
1780 | 1785 | Input: |
|
1781 | 1786 | |
|
1782 | 1787 | - header: An optional header message can be specified. |
|
1783 | 1788 | |
|
1784 | 1789 | - local_ns, global_ns: working namespaces. If given as None, the |
|
1785 | 1790 | IPython-initialized one is updated with __main__.__dict__, so that |
|
1786 | 1791 | program variables become visible but user-specific configuration |
|
1787 | 1792 | remains possible. |
|
1788 | 1793 | |
|
1789 | 1794 | - stack_depth: specifies how many levels in the stack to go to |
|
1790 | 1795 | looking for namespaces (when local_ns and global_ns are None). This |
|
1791 | 1796 | allows an intermediate caller to make sure that this function gets |
|
1792 | 1797 | the namespace from the intended level in the stack. By default (0) |
|
1793 | 1798 | it will get its locals and globals from the immediate caller. |
|
1794 | 1799 | |
|
1795 | 1800 | Warning: it's possible to use this in a program which is being run by |
|
1796 | 1801 | IPython itself (via %run), but some funny things will happen (a few |
|
1797 | 1802 | globals get overwritten). In the future this will be cleaned up, as |
|
1798 | 1803 | there is no fundamental reason why it can't work perfectly.""" |
|
1799 | 1804 | |
|
1800 | 1805 | # Get locals and globals from caller |
|
1801 | 1806 | if local_ns is None or global_ns is None: |
|
1802 | 1807 | call_frame = sys._getframe(stack_depth).f_back |
|
1803 | 1808 | |
|
1804 | 1809 | if local_ns is None: |
|
1805 | 1810 | local_ns = call_frame.f_locals |
|
1806 | 1811 | if global_ns is None: |
|
1807 | 1812 | global_ns = call_frame.f_globals |
|
1808 | 1813 | |
|
1809 | 1814 | # Update namespaces and fire up interpreter |
|
1810 | 1815 | |
|
1811 | 1816 | # The global one is easy, we can just throw it in |
|
1812 | 1817 | self.user_global_ns = global_ns |
|
1813 | 1818 | |
|
1814 | 1819 | # but the user/local one is tricky: ipython needs it to store internal |
|
1815 | 1820 | # data, but we also need the locals. We'll copy locals in the user |
|
1816 | 1821 | # one, but will track what got copied so we can delete them at exit. |
|
1817 | 1822 | # This is so that a later embedded call doesn't see locals from a |
|
1818 | 1823 | # previous call (which most likely existed in a separate scope). |
|
1819 | 1824 | local_varnames = local_ns.keys() |
|
1820 | 1825 | self.user_ns.update(local_ns) |
|
1821 | 1826 | #self.user_ns['local_ns'] = local_ns # dbg |
|
1822 | 1827 | |
|
1823 | 1828 | # Patch for global embedding to make sure that things don't overwrite |
|
1824 | 1829 | # user globals accidentally. Thanks to Richard <rxe@renre-europe.com> |
|
1825 | 1830 | # FIXME. Test this a bit more carefully (the if.. is new) |
|
1826 | 1831 | if local_ns is None and global_ns is None: |
|
1827 | 1832 | self.user_global_ns.update(__main__.__dict__) |
|
1828 | 1833 | |
|
1829 | 1834 | # make sure the tab-completer has the correct frame information, so it |
|
1830 | 1835 | # actually completes using the frame's locals/globals |
|
1831 | 1836 | self.set_completer_frame() |
|
1832 | 1837 | |
|
1833 | 1838 | # before activating the interactive mode, we need to make sure that |
|
1834 | 1839 | # all names in the builtin namespace needed by ipython point to |
|
1835 | 1840 | # ourselves, and not to other instances. |
|
1836 | 1841 | self.add_builtins() |
|
1837 | 1842 | |
|
1838 | 1843 | self.interact(header) |
|
1839 | 1844 | |
|
1840 | 1845 | # now, purge out the user namespace from anything we might have added |
|
1841 | 1846 | # from the caller's local namespace |
|
1842 | 1847 | delvar = self.user_ns.pop |
|
1843 | 1848 | for var in local_varnames: |
|
1844 | 1849 | delvar(var,None) |
|
1845 | 1850 | # and clean builtins we may have overridden |
|
1846 | 1851 | self.clean_builtins() |
|
1847 | 1852 | |
|
1848 | 1853 | def interact_prompt(self): |
|
1849 | 1854 | """ Print the prompt (in read-eval-print loop) |
|
1850 | 1855 | |
|
1851 | 1856 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not |
|
1852 | 1857 | used in standard IPython flow. |
|
1853 | 1858 | """ |
|
1854 | 1859 | if self.more: |
|
1855 | 1860 | try: |
|
1856 | 1861 | prompt = self.hooks.generate_prompt(True) |
|
1857 | 1862 | except: |
|
1858 | 1863 | self.showtraceback() |
|
1859 | 1864 | if self.autoindent: |
|
1860 | 1865 | self.rl_do_indent = True |
|
1861 | 1866 | |
|
1862 | 1867 | else: |
|
1863 | 1868 | try: |
|
1864 | 1869 | prompt = self.hooks.generate_prompt(False) |
|
1865 | 1870 | except: |
|
1866 | 1871 | self.showtraceback() |
|
1867 | 1872 | self.write(prompt) |
|
1868 | 1873 | |
|
1869 | 1874 | def interact_handle_input(self,line): |
|
1870 | 1875 | """ Handle the input line (in read-eval-print loop) |
|
1871 | 1876 | |
|
1872 | 1877 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not |
|
1873 | 1878 | used in standard IPython flow. |
|
1874 | 1879 | """ |
|
1875 | 1880 | if line.lstrip() == line: |
|
1876 | 1881 | self.shadowhist.add(line.strip()) |
|
1877 | 1882 | lineout = self.prefilter(line,self.more) |
|
1878 | 1883 | |
|
1879 | 1884 | if line.strip(): |
|
1880 | 1885 | if self.more: |
|
1881 | 1886 | self.input_hist_raw[-1] += '%s\n' % line |
|
1882 | 1887 | else: |
|
1883 | 1888 | self.input_hist_raw.append('%s\n' % line) |
|
1884 | 1889 | |
|
1885 | 1890 | |
|
1886 | 1891 | self.more = self.push(lineout) |
|
1887 | 1892 | if (self.SyntaxTB.last_syntax_error and |
|
1888 | 1893 | self.rc.autoedit_syntax): |
|
1889 | 1894 | self.edit_syntax_error() |
|
1890 | 1895 | |
|
1891 | 1896 | def interact_with_readline(self): |
|
1892 | 1897 | """ Demo of using interact_handle_input, interact_prompt |
|
1893 | 1898 | |
|
1894 | 1899 | This is the main read-eval-print loop. If you need to implement your own (e.g. for GUI), |
|
1895 | 1900 | it should work like this. |
|
1896 | 1901 | """ |
|
1897 | 1902 | self.readline_startup_hook(self.pre_readline) |
|
1898 | 1903 | while not self.exit_now: |
|
1899 | 1904 | self.interact_prompt() |
|
1900 | 1905 | if self.more: |
|
1901 | 1906 | self.rl_do_indent = True |
|
1902 | 1907 | else: |
|
1903 | 1908 | self.rl_do_indent = False |
|
1904 | 1909 | line = raw_input_original().decode(self.stdin_encoding) |
|
1905 | 1910 | self.interact_handle_input(line) |
|
1906 | 1911 | |
|
1907 | 1912 | |
|
1908 | 1913 | def interact(self, banner=None): |
|
1909 | 1914 | """Closely emulate the interactive Python console. |
|
1910 | 1915 | |
|
1911 | 1916 | The optional banner argument specify the banner to print |
|
1912 | 1917 | before the first interaction; by default it prints a banner |
|
1913 | 1918 | similar to the one printed by the real Python interpreter, |
|
1914 | 1919 | followed by the current class name in parentheses (so as not |
|
1915 | 1920 | to confuse this with the real interpreter -- since it's so |
|
1916 | 1921 | close!). |
|
1917 | 1922 | |
|
1918 | 1923 | """ |
|
1919 | 1924 | |
|
1920 | 1925 | if self.exit_now: |
|
1921 | 1926 | # batch run -> do not interact |
|
1922 | 1927 | return |
|
1923 | 1928 | cprt = 'Type "copyright", "credits" or "license" for more information.' |
|
1924 | 1929 | if banner is None: |
|
1925 | 1930 | self.write("Python %s on %s\n%s\n(%s)\n" % |
|
1926 | 1931 | (sys.version, sys.platform, cprt, |
|
1927 | 1932 | self.__class__.__name__)) |
|
1928 | 1933 | else: |
|
1929 | 1934 | self.write(banner) |
|
1930 | 1935 | |
|
1931 | 1936 | more = 0 |
|
1932 | 1937 | |
|
1933 | 1938 | # Mark activity in the builtins |
|
1934 | 1939 | __builtin__.__dict__['__IPYTHON__active'] += 1 |
|
1935 | 1940 | |
|
1936 | 1941 | if self.has_readline: |
|
1937 | 1942 | self.readline_startup_hook(self.pre_readline) |
|
1938 | 1943 | # exit_now is set by a call to %Exit or %Quit, through the |
|
1939 | 1944 | # ask_exit callback. |
|
1940 | 1945 | |
|
1941 | 1946 | while not self.exit_now: |
|
1942 | 1947 | self.hooks.pre_prompt_hook() |
|
1943 | 1948 | if more: |
|
1944 | 1949 | try: |
|
1945 | 1950 | prompt = self.hooks.generate_prompt(True) |
|
1946 | 1951 | except: |
|
1947 | 1952 | self.showtraceback() |
|
1948 | 1953 | if self.autoindent: |
|
1949 | 1954 | self.rl_do_indent = True |
|
1950 | 1955 | |
|
1951 | 1956 | else: |
|
1952 | 1957 | try: |
|
1953 | 1958 | prompt = self.hooks.generate_prompt(False) |
|
1954 | 1959 | except: |
|
1955 | 1960 | self.showtraceback() |
|
1956 | 1961 | try: |
|
1957 | 1962 | line = self.raw_input(prompt,more) |
|
1958 | 1963 | if self.exit_now: |
|
1959 | 1964 | # quick exit on sys.std[in|out] close |
|
1960 | 1965 | break |
|
1961 | 1966 | if self.autoindent: |
|
1962 | 1967 | self.rl_do_indent = False |
|
1963 | 1968 | |
|
1964 | 1969 | except KeyboardInterrupt: |
|
1965 | 1970 | #double-guard against keyboardinterrupts during kbdint handling |
|
1966 | 1971 | try: |
|
1967 | 1972 | self.write('\nKeyboardInterrupt\n') |
|
1968 | 1973 | self.resetbuffer() |
|
1969 | 1974 | # keep cache in sync with the prompt counter: |
|
1970 | 1975 | self.outputcache.prompt_count -= 1 |
|
1971 | 1976 | |
|
1972 | 1977 | if self.autoindent: |
|
1973 | 1978 | self.indent_current_nsp = 0 |
|
1974 | 1979 | more = 0 |
|
1975 | 1980 | except KeyboardInterrupt: |
|
1976 | 1981 | pass |
|
1977 | 1982 | except EOFError: |
|
1978 | 1983 | if self.autoindent: |
|
1979 | 1984 | self.rl_do_indent = False |
|
1980 | 1985 | self.readline_startup_hook(None) |
|
1981 | 1986 | self.write('\n') |
|
1982 | 1987 | self.exit() |
|
1983 | 1988 | except bdb.BdbQuit: |
|
1984 | 1989 | warn('The Python debugger has exited with a BdbQuit exception.\n' |
|
1985 | 1990 | 'Because of how pdb handles the stack, it is impossible\n' |
|
1986 | 1991 | 'for IPython to properly format this particular exception.\n' |
|
1987 | 1992 | 'IPython will resume normal operation.') |
|
1988 | 1993 | except: |
|
1989 | 1994 | # exceptions here are VERY RARE, but they can be triggered |
|
1990 | 1995 | # asynchronously by signal handlers, for example. |
|
1991 | 1996 | self.showtraceback() |
|
1992 | 1997 | else: |
|
1993 | 1998 | more = self.push(line) |
|
1994 | 1999 | if (self.SyntaxTB.last_syntax_error and |
|
1995 | 2000 | self.rc.autoedit_syntax): |
|
1996 | 2001 | self.edit_syntax_error() |
|
1997 | 2002 | |
|
1998 | 2003 | # We are off again... |
|
1999 | 2004 | __builtin__.__dict__['__IPYTHON__active'] -= 1 |
|
2000 | 2005 | |
|
2001 | 2006 | def excepthook(self, etype, value, tb): |
|
2002 | 2007 | """One more defense for GUI apps that call sys.excepthook. |
|
2003 | 2008 | |
|
2004 | 2009 | GUI frameworks like wxPython trap exceptions and call |
|
2005 | 2010 | sys.excepthook themselves. I guess this is a feature that |
|
2006 | 2011 | enables them to keep running after exceptions that would |
|
2007 | 2012 | otherwise kill their mainloop. This is a bother for IPython |
|
2008 | 2013 | which excepts to catch all of the program exceptions with a try: |
|
2009 | 2014 | except: statement. |
|
2010 | 2015 | |
|
2011 | 2016 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if |
|
2012 | 2017 | any app directly invokes sys.excepthook, it will look to the user like |
|
2013 | 2018 | IPython crashed. In order to work around this, we can disable the |
|
2014 | 2019 | CrashHandler and replace it with this excepthook instead, which prints a |
|
2015 | 2020 | regular traceback using our InteractiveTB. In this fashion, apps which |
|
2016 | 2021 | call sys.excepthook will generate a regular-looking exception from |
|
2017 | 2022 | IPython, and the CrashHandler will only be triggered by real IPython |
|
2018 | 2023 | crashes. |
|
2019 | 2024 | |
|
2020 | 2025 | This hook should be used sparingly, only in places which are not likely |
|
2021 | 2026 | to be true IPython errors. |
|
2022 | 2027 | """ |
|
2023 | 2028 | self.showtraceback((etype,value,tb),tb_offset=0) |
|
2024 | 2029 | |
|
2025 | 2030 | def expand_aliases(self,fn,rest): |
|
2026 | 2031 | """ Expand multiple levels of aliases: |
|
2027 | 2032 | |
|
2028 | 2033 | if: |
|
2029 | 2034 | |
|
2030 | 2035 | alias foo bar /tmp |
|
2031 | 2036 | alias baz foo |
|
2032 | 2037 | |
|
2033 | 2038 | then: |
|
2034 | 2039 | |
|
2035 | 2040 | baz huhhahhei -> bar /tmp huhhahhei |
|
2036 | 2041 | |
|
2037 | 2042 | """ |
|
2038 | 2043 | line = fn + " " + rest |
|
2039 | 2044 | |
|
2040 | 2045 | done = set() |
|
2041 | 2046 | while 1: |
|
2042 | 2047 | pre,fn,rest = prefilter.splitUserInput(line, |
|
2043 | 2048 | prefilter.shell_line_split) |
|
2044 | 2049 | if fn in self.alias_table: |
|
2045 | 2050 | if fn in done: |
|
2046 | 2051 | warn("Cyclic alias definition, repeated '%s'" % fn) |
|
2047 | 2052 | return "" |
|
2048 | 2053 | done.add(fn) |
|
2049 | 2054 | |
|
2050 | 2055 | l2 = self.transform_alias(fn,rest) |
|
2051 | 2056 | # dir -> dir |
|
2052 | 2057 | # print "alias",line, "->",l2 #dbg |
|
2053 | 2058 | if l2 == line: |
|
2054 | 2059 | break |
|
2055 | 2060 | # ls -> ls -F should not recurse forever |
|
2056 | 2061 | if l2.split(None,1)[0] == line.split(None,1)[0]: |
|
2057 | 2062 | line = l2 |
|
2058 | 2063 | break |
|
2059 | 2064 | |
|
2060 | 2065 | line=l2 |
|
2061 | 2066 | |
|
2062 | 2067 | |
|
2063 | 2068 | # print "al expand to",line #dbg |
|
2064 | 2069 | else: |
|
2065 | 2070 | break |
|
2066 | 2071 | |
|
2067 | 2072 | return line |
|
2068 | 2073 | |
|
2069 | 2074 | def transform_alias(self, alias,rest=''): |
|
2070 | 2075 | """ Transform alias to system command string. |
|
2071 | 2076 | """ |
|
2072 | 2077 | trg = self.alias_table[alias] |
|
2073 | 2078 | |
|
2074 | 2079 | nargs,cmd = trg |
|
2075 | 2080 | # print trg #dbg |
|
2076 | 2081 | if ' ' in cmd and os.path.isfile(cmd): |
|
2077 | 2082 | cmd = '"%s"' % cmd |
|
2078 | 2083 | |
|
2079 | 2084 | # Expand the %l special to be the user's input line |
|
2080 | 2085 | if cmd.find('%l') >= 0: |
|
2081 | 2086 | cmd = cmd.replace('%l',rest) |
|
2082 | 2087 | rest = '' |
|
2083 | 2088 | if nargs==0: |
|
2084 | 2089 | # Simple, argument-less aliases |
|
2085 | 2090 | cmd = '%s %s' % (cmd,rest) |
|
2086 | 2091 | else: |
|
2087 | 2092 | # Handle aliases with positional arguments |
|
2088 | 2093 | args = rest.split(None,nargs) |
|
2089 | 2094 | if len(args)< nargs: |
|
2090 | 2095 | error('Alias <%s> requires %s arguments, %s given.' % |
|
2091 | 2096 | (alias,nargs,len(args))) |
|
2092 | 2097 | return None |
|
2093 | 2098 | cmd = '%s %s' % (cmd % tuple(args[:nargs]),' '.join(args[nargs:])) |
|
2094 | 2099 | # Now call the macro, evaluating in the user's namespace |
|
2095 | 2100 | #print 'new command: <%r>' % cmd # dbg |
|
2096 | 2101 | return cmd |
|
2097 | 2102 | |
|
2098 | 2103 | def call_alias(self,alias,rest=''): |
|
2099 | 2104 | """Call an alias given its name and the rest of the line. |
|
2100 | 2105 | |
|
2101 | 2106 | This is only used to provide backwards compatibility for users of |
|
2102 | 2107 | ipalias(), use of which is not recommended for anymore.""" |
|
2103 | 2108 | |
|
2104 | 2109 | # Now call the macro, evaluating in the user's namespace |
|
2105 | 2110 | cmd = self.transform_alias(alias, rest) |
|
2106 | 2111 | try: |
|
2107 | 2112 | self.system(cmd) |
|
2108 | 2113 | except: |
|
2109 | 2114 | self.showtraceback() |
|
2110 | 2115 | |
|
2111 | 2116 | def indent_current_str(self): |
|
2112 | 2117 | """return the current level of indentation as a string""" |
|
2113 | 2118 | return self.indent_current_nsp * ' ' |
|
2114 | 2119 | |
|
2115 | 2120 | def autoindent_update(self,line): |
|
2116 | 2121 | """Keep track of the indent level.""" |
|
2117 | 2122 | |
|
2118 | 2123 | #debugx('line') |
|
2119 | 2124 | #debugx('self.indent_current_nsp') |
|
2120 | 2125 | if self.autoindent: |
|
2121 | 2126 | if line: |
|
2122 | 2127 | inisp = num_ini_spaces(line) |
|
2123 | 2128 | if inisp < self.indent_current_nsp: |
|
2124 | 2129 | self.indent_current_nsp = inisp |
|
2125 | 2130 | |
|
2126 | 2131 | if line[-1] == ':': |
|
2127 | 2132 | self.indent_current_nsp += 4 |
|
2128 | 2133 | elif dedent_re.match(line): |
|
2129 | 2134 | self.indent_current_nsp -= 4 |
|
2130 | 2135 | else: |
|
2131 | 2136 | self.indent_current_nsp = 0 |
|
2132 | 2137 | |
|
2133 | 2138 | def runlines(self,lines): |
|
2134 | 2139 | """Run a string of one or more lines of source. |
|
2135 | 2140 | |
|
2136 | 2141 | This method is capable of running a string containing multiple source |
|
2137 | 2142 | lines, as if they had been entered at the IPython prompt. Since it |
|
2138 | 2143 | exposes IPython's processing machinery, the given strings can contain |
|
2139 | 2144 | magic calls (%magic), special shell access (!cmd), etc.""" |
|
2140 | 2145 | |
|
2141 | 2146 | # We must start with a clean buffer, in case this is run from an |
|
2142 | 2147 | # interactive IPython session (via a magic, for example). |
|
2143 | 2148 | self.resetbuffer() |
|
2144 | 2149 | lines = lines.split('\n') |
|
2145 | 2150 | more = 0 |
|
2146 | 2151 | |
|
2147 | 2152 | for line in lines: |
|
2148 | 2153 | # skip blank lines so we don't mess up the prompt counter, but do |
|
2149 | 2154 | # NOT skip even a blank line if we are in a code block (more is |
|
2150 | 2155 | # true) |
|
2151 | 2156 | |
|
2152 | 2157 | if line or more: |
|
2153 | 2158 | # push to raw history, so hist line numbers stay in sync |
|
2154 | 2159 | self.input_hist_raw.append("# " + line + "\n") |
|
2155 | 2160 | more = self.push(self.prefilter(line,more)) |
|
2156 | 2161 | # IPython's runsource returns None if there was an error |
|
2157 | 2162 | # compiling the code. This allows us to stop processing right |
|
2158 | 2163 | # away, so the user gets the error message at the right place. |
|
2159 | 2164 | if more is None: |
|
2160 | 2165 | break |
|
2161 | 2166 | else: |
|
2162 | 2167 | self.input_hist_raw.append("\n") |
|
2163 | 2168 | # final newline in case the input didn't have it, so that the code |
|
2164 | 2169 | # actually does get executed |
|
2165 | 2170 | if more: |
|
2166 | 2171 | self.push('\n') |
|
2167 | 2172 | |
|
2168 | 2173 | def runsource(self, source, filename='<input>', symbol='single'): |
|
2169 | 2174 | """Compile and run some source in the interpreter. |
|
2170 | 2175 | |
|
2171 | 2176 | Arguments are as for compile_command(). |
|
2172 | 2177 | |
|
2173 | 2178 | One several things can happen: |
|
2174 | 2179 | |
|
2175 | 2180 | 1) The input is incorrect; compile_command() raised an |
|
2176 | 2181 | exception (SyntaxError or OverflowError). A syntax traceback |
|
2177 | 2182 | will be printed by calling the showsyntaxerror() method. |
|
2178 | 2183 | |
|
2179 | 2184 | 2) The input is incomplete, and more input is required; |
|
2180 | 2185 | compile_command() returned None. Nothing happens. |
|
2181 | 2186 | |
|
2182 | 2187 | 3) The input is complete; compile_command() returned a code |
|
2183 | 2188 | object. The code is executed by calling self.runcode() (which |
|
2184 | 2189 | also handles run-time exceptions, except for SystemExit). |
|
2185 | 2190 | |
|
2186 | 2191 | The return value is: |
|
2187 | 2192 | |
|
2188 | 2193 | - True in case 2 |
|
2189 | 2194 | |
|
2190 | 2195 | - False in the other cases, unless an exception is raised, where |
|
2191 | 2196 | None is returned instead. This can be used by external callers to |
|
2192 | 2197 | know whether to continue feeding input or not. |
|
2193 | 2198 | |
|
2194 | 2199 | The return value can be used to decide whether to use sys.ps1 or |
|
2195 | 2200 | sys.ps2 to prompt the next line.""" |
|
2196 | 2201 | |
|
2197 | 2202 | # if the source code has leading blanks, add 'if 1:\n' to it |
|
2198 | 2203 | # this allows execution of indented pasted code. It is tempting |
|
2199 | 2204 | # to add '\n' at the end of source to run commands like ' a=1' |
|
2200 | 2205 | # directly, but this fails for more complicated scenarios |
|
2201 | 2206 | source=source.encode(self.stdin_encoding) |
|
2202 | 2207 | if source[:1] in [' ', '\t']: |
|
2203 | 2208 | source = 'if 1:\n%s' % source |
|
2204 | 2209 | |
|
2205 | 2210 | try: |
|
2206 | 2211 | code = self.compile(source,filename,symbol) |
|
2207 | 2212 | except (OverflowError, SyntaxError, ValueError, TypeError): |
|
2208 | 2213 | # Case 1 |
|
2209 | 2214 | self.showsyntaxerror(filename) |
|
2210 | 2215 | return None |
|
2211 | 2216 | |
|
2212 | 2217 | if code is None: |
|
2213 | 2218 | # Case 2 |
|
2214 | 2219 | return True |
|
2215 | 2220 | |
|
2216 | 2221 | # Case 3 |
|
2217 | 2222 | # We store the code object so that threaded shells and |
|
2218 | 2223 | # custom exception handlers can access all this info if needed. |
|
2219 | 2224 | # The source corresponding to this can be obtained from the |
|
2220 | 2225 | # buffer attribute as '\n'.join(self.buffer). |
|
2221 | 2226 | self.code_to_run = code |
|
2222 | 2227 | # now actually execute the code object |
|
2223 | 2228 | if self.runcode(code) == 0: |
|
2224 | 2229 | return False |
|
2225 | 2230 | else: |
|
2226 | 2231 | return None |
|
2227 | 2232 | |
|
2228 | 2233 | def runcode(self,code_obj): |
|
2229 | 2234 | """Execute a code object. |
|
2230 | 2235 | |
|
2231 | 2236 | When an exception occurs, self.showtraceback() is called to display a |
|
2232 | 2237 | traceback. |
|
2233 | 2238 | |
|
2234 | 2239 | Return value: a flag indicating whether the code to be run completed |
|
2235 | 2240 | successfully: |
|
2236 | 2241 | |
|
2237 | 2242 | - 0: successful execution. |
|
2238 | 2243 | - 1: an error occurred. |
|
2239 | 2244 | """ |
|
2240 | 2245 | |
|
2241 | 2246 | # Set our own excepthook in case the user code tries to call it |
|
2242 | 2247 | # directly, so that the IPython crash handler doesn't get triggered |
|
2243 | 2248 | old_excepthook,sys.excepthook = sys.excepthook, self.excepthook |
|
2244 | 2249 | |
|
2245 | 2250 | # we save the original sys.excepthook in the instance, in case config |
|
2246 | 2251 | # code (such as magics) needs access to it. |
|
2247 | 2252 | self.sys_excepthook = old_excepthook |
|
2248 | 2253 | outflag = 1 # happens in more places, so it's easier as default |
|
2249 | 2254 | try: |
|
2250 | 2255 | try: |
|
2251 | 2256 | self.hooks.pre_runcode_hook() |
|
2252 | 2257 | exec code_obj in self.user_global_ns, self.user_ns |
|
2253 | 2258 | finally: |
|
2254 | 2259 | # Reset our crash handler in place |
|
2255 | 2260 | sys.excepthook = old_excepthook |
|
2256 | 2261 | except SystemExit: |
|
2257 | 2262 | self.resetbuffer() |
|
2258 | 2263 | self.showtraceback() |
|
2259 | 2264 | warn("Type %exit or %quit to exit IPython " |
|
2260 | 2265 | "(%Exit or %Quit do so unconditionally).",level=1) |
|
2261 | 2266 | except self.custom_exceptions: |
|
2262 | 2267 | etype,value,tb = sys.exc_info() |
|
2263 | 2268 | self.CustomTB(etype,value,tb) |
|
2264 | 2269 | except: |
|
2265 | 2270 | self.showtraceback() |
|
2266 | 2271 | else: |
|
2267 | 2272 | outflag = 0 |
|
2268 | 2273 | if softspace(sys.stdout, 0): |
|
2269 | 2274 | |
|
2270 | 2275 | # Flush out code object which has been run (and source) |
|
2271 | 2276 | self.code_to_run = None |
|
2272 | 2277 | return outflag |
|
2273 | 2278 | |
|
2274 | 2279 | def push(self, line): |
|
2275 | 2280 | """Push a line to the interpreter. |
|
2276 | 2281 | |
|
2277 | 2282 | The line should not have a trailing newline; it may have |
|
2278 | 2283 | internal newlines. The line is appended to a buffer and the |
|
2279 | 2284 | interpreter's runsource() method is called with the |
|
2280 | 2285 | concatenated contents of the buffer as source. If this |
|
2281 | 2286 | indicates that the command was executed or invalid, the buffer |
|
2282 | 2287 | is reset; otherwise, the command is incomplete, and the buffer |
|
2283 | 2288 | is left as it was after the line was appended. The return |
|
2284 | 2289 | value is 1 if more input is required, 0 if the line was dealt |
|
2285 | 2290 | with in some way (this is the same as runsource()). |
|
2286 | 2291 | """ |
|
2287 | 2292 | |
|
2288 | 2293 | # autoindent management should be done here, and not in the |
|
2289 | 2294 | # interactive loop, since that one is only seen by keyboard input. We |
|
2290 | 2295 | # need this done correctly even for code run via runlines (which uses |
|
2291 | 2296 | # push). |
|
2292 | 2297 | |
|
2293 | 2298 | #print 'push line: <%s>' % line # dbg |
|
2294 | 2299 | for subline in line.splitlines(): |
|
2295 | 2300 | self.autoindent_update(subline) |
|
2296 | 2301 | self.buffer.append(line) |
|
2297 | 2302 | more = self.runsource('\n'.join(self.buffer), self.filename) |
|
2298 | 2303 | if not more: |
|
2299 | 2304 | self.resetbuffer() |
|
2300 | 2305 | return more |
|
2301 | 2306 | |
|
2302 | 2307 | def split_user_input(self, line): |
|
2303 | 2308 | # This is really a hold-over to support ipapi and some extensions |
|
2304 | 2309 | return prefilter.splitUserInput(line) |
|
2305 | 2310 | |
|
2306 | 2311 | def resetbuffer(self): |
|
2307 | 2312 | """Reset the input buffer.""" |
|
2308 | 2313 | self.buffer[:] = [] |
|
2309 | 2314 | |
|
2310 | 2315 | def raw_input(self,prompt='',continue_prompt=False): |
|
2311 | 2316 | """Write a prompt and read a line. |
|
2312 | 2317 | |
|
2313 | 2318 | The returned line does not include the trailing newline. |
|
2314 | 2319 | When the user enters the EOF key sequence, EOFError is raised. |
|
2315 | 2320 | |
|
2316 | 2321 | Optional inputs: |
|
2317 | 2322 | |
|
2318 | 2323 | - prompt(''): a string to be printed to prompt the user. |
|
2319 | 2324 | |
|
2320 | 2325 | - continue_prompt(False): whether this line is the first one or a |
|
2321 | 2326 | continuation in a sequence of inputs. |
|
2322 | 2327 | """ |
|
2323 | 2328 | |
|
2324 | 2329 | # Code run by the user may have modified the readline completer state. |
|
2325 | 2330 | # We must ensure that our completer is back in place. |
|
2326 | 2331 | if self.has_readline: |
|
2327 | 2332 | self.set_completer() |
|
2328 | 2333 | |
|
2329 | 2334 | try: |
|
2330 | 2335 | line = raw_input_original(prompt).decode(self.stdin_encoding) |
|
2331 | 2336 | except ValueError: |
|
2332 | 2337 | warn("\n********\nYou or a %run:ed script called sys.stdin.close()" |
|
2333 | 2338 | " or sys.stdout.close()!\nExiting IPython!") |
|
2334 | 2339 | self.ask_exit() |
|
2335 | 2340 | return "" |
|
2336 | 2341 | |
|
2337 | 2342 | # Try to be reasonably smart about not re-indenting pasted input more |
|
2338 | 2343 | # than necessary. We do this by trimming out the auto-indent initial |
|
2339 | 2344 | # spaces, if the user's actual input started itself with whitespace. |
|
2340 | 2345 | #debugx('self.buffer[-1]') |
|
2341 | 2346 | |
|
2342 | 2347 | if self.autoindent: |
|
2343 | 2348 | if num_ini_spaces(line) > self.indent_current_nsp: |
|
2344 | 2349 | line = line[self.indent_current_nsp:] |
|
2345 | 2350 | self.indent_current_nsp = 0 |
|
2346 | 2351 | |
|
2347 | 2352 | # store the unfiltered input before the user has any chance to modify |
|
2348 | 2353 | # it. |
|
2349 | 2354 | if line.strip(): |
|
2350 | 2355 | if continue_prompt: |
|
2351 | 2356 | self.input_hist_raw[-1] += '%s\n' % line |
|
2352 | 2357 | if self.has_readline: # and some config option is set? |
|
2353 | 2358 | try: |
|
2354 | 2359 | histlen = self.readline.get_current_history_length() |
|
2355 | 2360 | if histlen > 1: |
|
2356 | 2361 | newhist = self.input_hist_raw[-1].rstrip() |
|
2357 | 2362 | self.readline.remove_history_item(histlen-1) |
|
2358 | 2363 | self.readline.replace_history_item(histlen-2, |
|
2359 | 2364 | newhist.encode(self.stdin_encoding)) |
|
2360 | 2365 | except AttributeError: |
|
2361 | 2366 | pass # re{move,place}_history_item are new in 2.4. |
|
2362 | 2367 | else: |
|
2363 | 2368 | self.input_hist_raw.append('%s\n' % line) |
|
2364 | 2369 | # only entries starting at first column go to shadow history |
|
2365 | 2370 | if line.lstrip() == line: |
|
2366 | 2371 | self.shadowhist.add(line.strip()) |
|
2367 | 2372 | elif not continue_prompt: |
|
2368 | 2373 | self.input_hist_raw.append('\n') |
|
2369 | 2374 | try: |
|
2370 | 2375 | lineout = self.prefilter(line,continue_prompt) |
|
2371 | 2376 | except: |
|
2372 | 2377 | # blanket except, in case a user-defined prefilter crashes, so it |
|
2373 | 2378 | # can't take all of ipython with it. |
|
2374 | 2379 | self.showtraceback() |
|
2375 | 2380 | return '' |
|
2376 | 2381 | else: |
|
2377 | 2382 | return lineout |
|
2378 | 2383 | |
|
2379 | 2384 | def _prefilter(self, line, continue_prompt): |
|
2380 | 2385 | """Calls different preprocessors, depending on the form of line.""" |
|
2381 | 2386 | |
|
2382 | 2387 | # All handlers *must* return a value, even if it's blank (''). |
|
2383 | 2388 | |
|
2384 | 2389 | # Lines are NOT logged here. Handlers should process the line as |
|
2385 | 2390 | # needed, update the cache AND log it (so that the input cache array |
|
2386 | 2391 | # stays synced). |
|
2387 | 2392 | |
|
2388 | 2393 | #..................................................................... |
|
2389 | 2394 | # Code begins |
|
2390 | 2395 | |
|
2391 | 2396 | #if line.startswith('%crash'): raise RuntimeError,'Crash now!' # dbg |
|
2392 | 2397 | |
|
2393 | 2398 | # save the line away in case we crash, so the post-mortem handler can |
|
2394 | 2399 | # record it |
|
2395 | 2400 | self._last_input_line = line |
|
2396 | 2401 | |
|
2397 | 2402 | #print '***line: <%s>' % line # dbg |
|
2398 | 2403 | |
|
2399 | 2404 | if not line: |
|
2400 | 2405 | # Return immediately on purely empty lines, so that if the user |
|
2401 | 2406 | # previously typed some whitespace that started a continuation |
|
2402 | 2407 | # prompt, he can break out of that loop with just an empty line. |
|
2403 | 2408 | # This is how the default python prompt works. |
|
2404 | 2409 | |
|
2405 | 2410 | # Only return if the accumulated input buffer was just whitespace! |
|
2406 | 2411 | if ''.join(self.buffer).isspace(): |
|
2407 | 2412 | self.buffer[:] = [] |
|
2408 | 2413 | return '' |
|
2409 | 2414 | |
|
2410 | 2415 | line_info = prefilter.LineInfo(line, continue_prompt) |
|
2411 | 2416 | |
|
2412 | 2417 | # the input history needs to track even empty lines |
|
2413 | 2418 | stripped = line.strip() |
|
2414 | 2419 | |
|
2415 | 2420 | if not stripped: |
|
2416 | 2421 | if not continue_prompt: |
|
2417 | 2422 | self.outputcache.prompt_count -= 1 |
|
2418 | 2423 | return self.handle_normal(line_info) |
|
2419 | 2424 | |
|
2420 | 2425 | # print '***cont',continue_prompt # dbg |
|
2421 | 2426 | # special handlers are only allowed for single line statements |
|
2422 | 2427 | if continue_prompt and not self.rc.multi_line_specials: |
|
2423 | 2428 | return self.handle_normal(line_info) |
|
2424 | 2429 | |
|
2425 | 2430 | |
|
2426 | 2431 | # See whether any pre-existing handler can take care of it |
|
2427 | 2432 | rewritten = self.hooks.input_prefilter(stripped) |
|
2428 | 2433 | if rewritten != stripped: # ok, some prefilter did something |
|
2429 | 2434 | rewritten = line_info.pre + rewritten # add indentation |
|
2430 | 2435 | return self.handle_normal(prefilter.LineInfo(rewritten, |
|
2431 | 2436 | continue_prompt)) |
|
2432 | 2437 | |
|
2433 | 2438 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg |
|
2434 | 2439 | |
|
2435 | 2440 | return prefilter.prefilter(line_info, self) |
|
2436 | 2441 | |
|
2437 | 2442 | |
|
2438 | 2443 | def _prefilter_dumb(self, line, continue_prompt): |
|
2439 | 2444 | """simple prefilter function, for debugging""" |
|
2440 | 2445 | return self.handle_normal(line,continue_prompt) |
|
2441 | 2446 | |
|
2442 | 2447 | |
|
2443 | 2448 | def multiline_prefilter(self, line, continue_prompt): |
|
2444 | 2449 | """ Run _prefilter for each line of input |
|
2445 | 2450 | |
|
2446 | 2451 | Covers cases where there are multiple lines in the user entry, |
|
2447 | 2452 | which is the case when the user goes back to a multiline history |
|
2448 | 2453 | entry and presses enter. |
|
2449 | 2454 | |
|
2450 | 2455 | """ |
|
2451 | 2456 | out = [] |
|
2452 | 2457 | for l in line.rstrip('\n').split('\n'): |
|
2453 | 2458 | out.append(self._prefilter(l, continue_prompt)) |
|
2454 | 2459 | return '\n'.join(out) |
|
2455 | 2460 | |
|
2456 | 2461 | # Set the default prefilter() function (this can be user-overridden) |
|
2457 | 2462 | prefilter = multiline_prefilter |
|
2458 | 2463 | |
|
2459 | 2464 | def handle_normal(self,line_info): |
|
2460 | 2465 | """Handle normal input lines. Use as a template for handlers.""" |
|
2461 | 2466 | |
|
2462 | 2467 | # With autoindent on, we need some way to exit the input loop, and I |
|
2463 | 2468 | # don't want to force the user to have to backspace all the way to |
|
2464 | 2469 | # clear the line. The rule will be in this case, that either two |
|
2465 | 2470 | # lines of pure whitespace in a row, or a line of pure whitespace but |
|
2466 | 2471 | # of a size different to the indent level, will exit the input loop. |
|
2467 | 2472 | line = line_info.line |
|
2468 | 2473 | continue_prompt = line_info.continue_prompt |
|
2469 | 2474 | |
|
2470 | 2475 | if (continue_prompt and self.autoindent and line.isspace() and |
|
2471 | 2476 | (0 < abs(len(line) - self.indent_current_nsp) <= 2 or |
|
2472 | 2477 | (self.buffer[-1]).isspace() )): |
|
2473 | 2478 | line = '' |
|
2474 | 2479 | |
|
2475 | 2480 | self.log(line,line,continue_prompt) |
|
2476 | 2481 | return line |
|
2477 | 2482 | |
|
2478 | 2483 | def handle_alias(self,line_info): |
|
2479 | 2484 | """Handle alias input lines. """ |
|
2480 | 2485 | tgt = self.alias_table[line_info.iFun] |
|
2481 | 2486 | # print "=>",tgt #dbg |
|
2482 | 2487 | if callable(tgt): |
|
2483 | 2488 | if '$' in line_info.line: |
|
2484 | 2489 | call_meth = '(_ip, _ip.itpl(%s))' |
|
2485 | 2490 | else: |
|
2486 | 2491 | call_meth = '(_ip,%s)' |
|
2487 | 2492 | line_out = ("%s_sh.%s" + call_meth) % (line_info.preWhitespace, |
|
2488 | 2493 | line_info.iFun, |
|
2489 | 2494 | make_quoted_expr(line_info.line)) |
|
2490 | 2495 | else: |
|
2491 | 2496 | transformed = self.expand_aliases(line_info.iFun,line_info.theRest) |
|
2492 | 2497 | |
|
2493 | 2498 | # pre is needed, because it carries the leading whitespace. Otherwise |
|
2494 | 2499 | # aliases won't work in indented sections. |
|
2495 | 2500 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, |
|
2496 | 2501 | make_quoted_expr( transformed )) |
|
2497 | 2502 | |
|
2498 | 2503 | self.log(line_info.line,line_out,line_info.continue_prompt) |
|
2499 | 2504 | #print 'line out:',line_out # dbg |
|
2500 | 2505 | return line_out |
|
2501 | 2506 | |
|
2502 | 2507 | def handle_shell_escape(self, line_info): |
|
2503 | 2508 | """Execute the line in a shell, empty return value""" |
|
2504 | 2509 | #print 'line in :', `line` # dbg |
|
2505 | 2510 | line = line_info.line |
|
2506 | 2511 | if line.lstrip().startswith('!!'): |
|
2507 | 2512 | # rewrite LineInfo's line, iFun and theRest to properly hold the |
|
2508 | 2513 | # call to %sx and the actual command to be executed, so |
|
2509 | 2514 | # handle_magic can work correctly. Note that this works even if |
|
2510 | 2515 | # the line is indented, so it handles multi_line_specials |
|
2511 | 2516 | # properly. |
|
2512 | 2517 | new_rest = line.lstrip()[2:] |
|
2513 | 2518 | line_info.line = '%ssx %s' % (self.ESC_MAGIC,new_rest) |
|
2514 | 2519 | line_info.iFun = 'sx' |
|
2515 | 2520 | line_info.theRest = new_rest |
|
2516 | 2521 | return self.handle_magic(line_info) |
|
2517 | 2522 | else: |
|
2518 | 2523 | cmd = line.lstrip().lstrip('!') |
|
2519 | 2524 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, |
|
2520 | 2525 | make_quoted_expr(cmd)) |
|
2521 | 2526 | # update cache/log and return |
|
2522 | 2527 | self.log(line,line_out,line_info.continue_prompt) |
|
2523 | 2528 | return line_out |
|
2524 | 2529 | |
|
2525 | 2530 | def handle_magic(self, line_info): |
|
2526 | 2531 | """Execute magic functions.""" |
|
2527 | 2532 | iFun = line_info.iFun |
|
2528 | 2533 | theRest = line_info.theRest |
|
2529 | 2534 | cmd = '%s_ip.magic(%s)' % (line_info.preWhitespace, |
|
2530 | 2535 | make_quoted_expr(iFun + " " + theRest)) |
|
2531 | 2536 | self.log(line_info.line,cmd,line_info.continue_prompt) |
|
2532 | 2537 | #print 'in handle_magic, cmd=<%s>' % cmd # dbg |
|
2533 | 2538 | return cmd |
|
2534 | 2539 | |
|
2535 | 2540 | def handle_auto(self, line_info): |
|
2536 | 2541 | """Hande lines which can be auto-executed, quoting if requested.""" |
|
2537 | 2542 | |
|
2538 | 2543 | line = line_info.line |
|
2539 | 2544 | iFun = line_info.iFun |
|
2540 | 2545 | theRest = line_info.theRest |
|
2541 | 2546 | pre = line_info.pre |
|
2542 | 2547 | continue_prompt = line_info.continue_prompt |
|
2543 | 2548 | obj = line_info.ofind(self)['obj'] |
|
2544 | 2549 | |
|
2545 | 2550 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg |
|
2546 | 2551 | |
|
2547 | 2552 | # This should only be active for single-line input! |
|
2548 | 2553 | if continue_prompt: |
|
2549 | 2554 | self.log(line,line,continue_prompt) |
|
2550 | 2555 | return line |
|
2551 | 2556 | |
|
2552 | 2557 | force_auto = isinstance(obj, IPython.ipapi.IPyAutocall) |
|
2553 | 2558 | auto_rewrite = True |
|
2554 | 2559 | |
|
2555 | 2560 | if pre == self.ESC_QUOTE: |
|
2556 | 2561 | # Auto-quote splitting on whitespace |
|
2557 | 2562 | newcmd = '%s("%s")' % (iFun,'", "'.join(theRest.split()) ) |
|
2558 | 2563 | elif pre == self.ESC_QUOTE2: |
|
2559 | 2564 | # Auto-quote whole string |
|
2560 | 2565 | newcmd = '%s("%s")' % (iFun,theRest) |
|
2561 | 2566 | elif pre == self.ESC_PAREN: |
|
2562 | 2567 | newcmd = '%s(%s)' % (iFun,",".join(theRest.split())) |
|
2563 | 2568 | else: |
|
2564 | 2569 | # Auto-paren. |
|
2565 | 2570 | # We only apply it to argument-less calls if the autocall |
|
2566 | 2571 | # parameter is set to 2. We only need to check that autocall is < |
|
2567 | 2572 | # 2, since this function isn't called unless it's at least 1. |
|
2568 | 2573 | if not theRest and (self.rc.autocall < 2) and not force_auto: |
|
2569 | 2574 | newcmd = '%s %s' % (iFun,theRest) |
|
2570 | 2575 | auto_rewrite = False |
|
2571 | 2576 | else: |
|
2572 | 2577 | if not force_auto and theRest.startswith('['): |
|
2573 | 2578 | if hasattr(obj,'__getitem__'): |
|
2574 | 2579 | # Don't autocall in this case: item access for an object |
|
2575 | 2580 | # which is BOTH callable and implements __getitem__. |
|
2576 | 2581 | newcmd = '%s %s' % (iFun,theRest) |
|
2577 | 2582 | auto_rewrite = False |
|
2578 | 2583 | else: |
|
2579 | 2584 | # if the object doesn't support [] access, go ahead and |
|
2580 | 2585 | # autocall |
|
2581 | 2586 | newcmd = '%s(%s)' % (iFun.rstrip(),theRest) |
|
2582 | 2587 | elif theRest.endswith(';'): |
|
2583 | 2588 | newcmd = '%s(%s);' % (iFun.rstrip(),theRest[:-1]) |
|
2584 | 2589 | else: |
|
2585 | 2590 | newcmd = '%s(%s)' % (iFun.rstrip(), theRest) |
|
2586 | 2591 | |
|
2587 | 2592 | if auto_rewrite: |
|
2588 | 2593 | rw = self.outputcache.prompt1.auto_rewrite() + newcmd |
|
2589 | 2594 | |
|
2590 | 2595 | try: |
|
2591 | 2596 | # plain ascii works better w/ pyreadline, on some machines, so |
|
2592 | 2597 | # we use it and only print uncolored rewrite if we have unicode |
|
2593 | 2598 | rw = str(rw) |
|
2594 | 2599 | print >>Term.cout, rw |
|
2595 | 2600 | except UnicodeEncodeError: |
|
2596 | 2601 | print "-------------->" + newcmd |
|
2597 | 2602 | |
|
2598 | 2603 | # log what is now valid Python, not the actual user input (without the |
|
2599 | 2604 | # final newline) |
|
2600 | 2605 | self.log(line,newcmd,continue_prompt) |
|
2601 | 2606 | return newcmd |
|
2602 | 2607 | |
|
2603 | 2608 | def handle_help(self, line_info): |
|
2604 | 2609 | """Try to get some help for the object. |
|
2605 | 2610 | |
|
2606 | 2611 | obj? or ?obj -> basic information. |
|
2607 | 2612 | obj?? or ??obj -> more details. |
|
2608 | 2613 | """ |
|
2609 | 2614 | |
|
2610 | 2615 | line = line_info.line |
|
2611 | 2616 | # We need to make sure that we don't process lines which would be |
|
2612 | 2617 | # otherwise valid python, such as "x=1 # what?" |
|
2613 | 2618 | try: |
|
2614 | 2619 | codeop.compile_command(line) |
|
2615 | 2620 | except SyntaxError: |
|
2616 | 2621 | # We should only handle as help stuff which is NOT valid syntax |
|
2617 | 2622 | if line[0]==self.ESC_HELP: |
|
2618 | 2623 | line = line[1:] |
|
2619 | 2624 | elif line[-1]==self.ESC_HELP: |
|
2620 | 2625 | line = line[:-1] |
|
2621 | 2626 | self.log(line,'#?'+line,line_info.continue_prompt) |
|
2622 | 2627 | if line: |
|
2623 | 2628 | #print 'line:<%r>' % line # dbg |
|
2624 | 2629 | self.magic_pinfo(line) |
|
2625 | 2630 | else: |
|
2626 | 2631 | page(self.usage,screen_lines=self.rc.screen_length) |
|
2627 | 2632 | return '' # Empty string is needed here! |
|
2628 | 2633 | except: |
|
2629 | 2634 | # Pass any other exceptions through to the normal handler |
|
2630 | 2635 | return self.handle_normal(line_info) |
|
2631 | 2636 | else: |
|
2632 | 2637 | # If the code compiles ok, we should handle it normally |
|
2633 | 2638 | return self.handle_normal(line_info) |
|
2634 | 2639 | |
|
2635 | 2640 | def getapi(self): |
|
2636 | 2641 | """ Get an IPApi object for this shell instance |
|
2637 | 2642 | |
|
2638 | 2643 | Getting an IPApi object is always preferable to accessing the shell |
|
2639 | 2644 | directly, but this holds true especially for extensions. |
|
2640 | 2645 | |
|
2641 | 2646 | It should always be possible to implement an extension with IPApi |
|
2642 | 2647 | alone. If not, contact maintainer to request an addition. |
|
2643 | 2648 | |
|
2644 | 2649 | """ |
|
2645 | 2650 | return self.api |
|
2646 | 2651 | |
|
2647 | 2652 | def handle_emacs(self, line_info): |
|
2648 | 2653 | """Handle input lines marked by python-mode.""" |
|
2649 | 2654 | |
|
2650 | 2655 | # Currently, nothing is done. Later more functionality can be added |
|
2651 | 2656 | # here if needed. |
|
2652 | 2657 | |
|
2653 | 2658 | # The input cache shouldn't be updated |
|
2654 | 2659 | return line_info.line |
|
2655 | 2660 | |
|
2656 | 2661 | |
|
2657 | 2662 | def mktempfile(self,data=None): |
|
2658 | 2663 | """Make a new tempfile and return its filename. |
|
2659 | 2664 | |
|
2660 | 2665 | This makes a call to tempfile.mktemp, but it registers the created |
|
2661 | 2666 | filename internally so ipython cleans it up at exit time. |
|
2662 | 2667 | |
|
2663 | 2668 | Optional inputs: |
|
2664 | 2669 | |
|
2665 | 2670 | - data(None): if data is given, it gets written out to the temp file |
|
2666 | 2671 | immediately, and the file is closed again.""" |
|
2667 | 2672 | |
|
2668 | 2673 | filename = tempfile.mktemp('.py','ipython_edit_') |
|
2669 | 2674 | self.tempfiles.append(filename) |
|
2670 | 2675 | |
|
2671 | 2676 | if data: |
|
2672 | 2677 | tmp_file = open(filename,'w') |
|
2673 | 2678 | tmp_file.write(data) |
|
2674 | 2679 | tmp_file.close() |
|
2675 | 2680 | return filename |
|
2676 | 2681 | |
|
2677 | 2682 | def write(self,data): |
|
2678 | 2683 | """Write a string to the default output""" |
|
2679 | 2684 | Term.cout.write(data) |
|
2680 | 2685 | |
|
2681 | 2686 | def write_err(self,data): |
|
2682 | 2687 | """Write a string to the default error output""" |
|
2683 | 2688 | Term.cerr.write(data) |
|
2684 | 2689 | |
|
2685 | 2690 | def ask_exit(self): |
|
2686 | 2691 | """ Call for exiting. Can be overiden and used as a callback. """ |
|
2687 | 2692 | self.exit_now = True |
|
2688 | 2693 | |
|
2689 | 2694 | def exit(self): |
|
2690 | 2695 | """Handle interactive exit. |
|
2691 | 2696 | |
|
2692 | 2697 | This method calls the ask_exit callback.""" |
|
2693 | 2698 | |
|
2694 | 2699 | if self.rc.confirm_exit: |
|
2695 | 2700 | if self.ask_yes_no('Do you really want to exit ([y]/n)?','y'): |
|
2696 | 2701 | self.ask_exit() |
|
2697 | 2702 | else: |
|
2698 | 2703 | self.ask_exit() |
|
2699 | 2704 | |
|
2700 | 2705 | def safe_execfile(self,fname,*where,**kw): |
|
2701 | 2706 | """A safe version of the builtin execfile(). |
|
2702 | 2707 | |
|
2703 | 2708 | This version will never throw an exception, and knows how to handle |
|
2704 | 2709 | ipython logs as well. |
|
2705 | 2710 | |
|
2706 | 2711 | :Parameters: |
|
2707 | 2712 | fname : string |
|
2708 | 2713 | Name of the file to be executed. |
|
2709 | 2714 | |
|
2710 | 2715 | where : tuple |
|
2711 | 2716 | One or two namespaces, passed to execfile() as (globals,locals). |
|
2712 | 2717 | If only one is given, it is passed as both. |
|
2713 | 2718 | |
|
2714 | 2719 | :Keywords: |
|
2715 | 2720 | islog : boolean (False) |
|
2716 | 2721 | |
|
2717 | 2722 | quiet : boolean (True) |
|
2718 | 2723 | |
|
2719 | 2724 | exit_ignore : boolean (False) |
|
2720 | 2725 | """ |
|
2721 | 2726 | |
|
2722 | 2727 | def syspath_cleanup(): |
|
2723 | 2728 | """Internal cleanup routine for sys.path.""" |
|
2724 | 2729 | if add_dname: |
|
2725 | 2730 | try: |
|
2726 | 2731 | sys.path.remove(dname) |
|
2727 | 2732 | except ValueError: |
|
2728 | 2733 | # For some reason the user has already removed it, ignore. |
|
2729 | 2734 | pass |
|
2730 | 2735 | |
|
2731 | 2736 | fname = os.path.expanduser(fname) |
|
2732 | 2737 | |
|
2733 | 2738 | # Find things also in current directory. This is needed to mimic the |
|
2734 | 2739 | # behavior of running a script from the system command line, where |
|
2735 | 2740 | # Python inserts the script's directory into sys.path |
|
2736 | 2741 | dname = os.path.dirname(os.path.abspath(fname)) |
|
2737 | 2742 | add_dname = False |
|
2738 | 2743 | if dname not in sys.path: |
|
2739 | 2744 | sys.path.insert(0,dname) |
|
2740 | 2745 | add_dname = True |
|
2741 | 2746 | |
|
2742 | 2747 | try: |
|
2743 | 2748 | xfile = open(fname) |
|
2744 | 2749 | except: |
|
2745 | 2750 | print >> Term.cerr, \ |
|
2746 | 2751 | 'Could not open file <%s> for safe execution.' % fname |
|
2747 | 2752 | syspath_cleanup() |
|
2748 | 2753 | return None |
|
2749 | 2754 | |
|
2750 | 2755 | kw.setdefault('islog',0) |
|
2751 | 2756 | kw.setdefault('quiet',1) |
|
2752 | 2757 | kw.setdefault('exit_ignore',0) |
|
2753 | 2758 | |
|
2754 | 2759 | first = xfile.readline() |
|
2755 | 2760 | loghead = str(self.loghead_tpl).split('\n',1)[0].strip() |
|
2756 | 2761 | xfile.close() |
|
2757 | 2762 | # line by line execution |
|
2758 | 2763 | if first.startswith(loghead) or kw['islog']: |
|
2759 | 2764 | print 'Loading log file <%s> one line at a time...' % fname |
|
2760 | 2765 | if kw['quiet']: |
|
2761 | 2766 | stdout_save = sys.stdout |
|
2762 | 2767 | sys.stdout = StringIO.StringIO() |
|
2763 | 2768 | try: |
|
2764 | 2769 | globs,locs = where[0:2] |
|
2765 | 2770 | except: |
|
2766 | 2771 | try: |
|
2767 | 2772 | globs = locs = where[0] |
|
2768 | 2773 | except: |
|
2769 | 2774 | globs = locs = globals() |
|
2770 | 2775 | badblocks = [] |
|
2771 | 2776 | |
|
2772 | 2777 | # we also need to identify indented blocks of code when replaying |
|
2773 | 2778 | # logs and put them together before passing them to an exec |
|
2774 | 2779 | # statement. This takes a bit of regexp and look-ahead work in the |
|
2775 | 2780 | # file. It's easiest if we swallow the whole thing in memory |
|
2776 | 2781 | # first, and manually walk through the lines list moving the |
|
2777 | 2782 | # counter ourselves. |
|
2778 | 2783 | indent_re = re.compile('\s+\S') |
|
2779 | 2784 | xfile = open(fname) |
|
2780 | 2785 | filelines = xfile.readlines() |
|
2781 | 2786 | xfile.close() |
|
2782 | 2787 | nlines = len(filelines) |
|
2783 | 2788 | lnum = 0 |
|
2784 | 2789 | while lnum < nlines: |
|
2785 | 2790 | line = filelines[lnum] |
|
2786 | 2791 | lnum += 1 |
|
2787 | 2792 | # don't re-insert logger status info into cache |
|
2788 | 2793 | if line.startswith('#log#'): |
|
2789 | 2794 | continue |
|
2790 | 2795 | else: |
|
2791 | 2796 | # build a block of code (maybe a single line) for execution |
|
2792 | 2797 | block = line |
|
2793 | 2798 | try: |
|
2794 | 2799 | next = filelines[lnum] # lnum has already incremented |
|
2795 | 2800 | except: |
|
2796 | 2801 | next = None |
|
2797 | 2802 | while next and indent_re.match(next): |
|
2798 | 2803 | block += next |
|
2799 | 2804 | lnum += 1 |
|
2800 | 2805 | try: |
|
2801 | 2806 | next = filelines[lnum] |
|
2802 | 2807 | except: |
|
2803 | 2808 | next = None |
|
2804 | 2809 | # now execute the block of one or more lines |
|
2805 | 2810 | try: |
|
2806 | 2811 | exec block in globs,locs |
|
2807 | 2812 | except SystemExit: |
|
2808 | 2813 | pass |
|
2809 | 2814 | except: |
|
2810 | 2815 | badblocks.append(block.rstrip()) |
|
2811 | 2816 | if kw['quiet']: # restore stdout |
|
2812 | 2817 | sys.stdout.close() |
|
2813 | 2818 | sys.stdout = stdout_save |
|
2814 | 2819 | print 'Finished replaying log file <%s>' % fname |
|
2815 | 2820 | if badblocks: |
|
2816 | 2821 | print >> sys.stderr, ('\nThe following lines/blocks in file ' |
|
2817 | 2822 | '<%s> reported errors:' % fname) |
|
2818 | 2823 | |
|
2819 | 2824 | for badline in badblocks: |
|
2820 | 2825 | print >> sys.stderr, badline |
|
2821 | 2826 | else: # regular file execution |
|
2822 | 2827 | try: |
|
2823 | 2828 | if sys.platform == 'win32' and sys.version_info < (2,5,1): |
|
2824 | 2829 | # Work around a bug in Python for Windows. The bug was |
|
2825 | 2830 | # fixed in in Python 2.5 r54159 and 54158, but that's still |
|
2826 | 2831 | # SVN Python as of March/07. For details, see: |
|
2827 | 2832 | # http://projects.scipy.org/ipython/ipython/ticket/123 |
|
2828 | 2833 | try: |
|
2829 | 2834 | globs,locs = where[0:2] |
|
2830 | 2835 | except: |
|
2831 | 2836 | try: |
|
2832 | 2837 | globs = locs = where[0] |
|
2833 | 2838 | except: |
|
2834 | 2839 | globs = locs = globals() |
|
2835 | 2840 | exec file(fname) in globs,locs |
|
2836 | 2841 | else: |
|
2837 | 2842 | execfile(fname,*where) |
|
2838 | 2843 | except SyntaxError: |
|
2839 | 2844 | self.showsyntaxerror() |
|
2840 | 2845 | warn('Failure executing file: <%s>' % fname) |
|
2841 | 2846 | except SystemExit,status: |
|
2842 | 2847 | # Code that correctly sets the exit status flag to success (0) |
|
2843 | 2848 | # shouldn't be bothered with a traceback. Note that a plain |
|
2844 | 2849 | # sys.exit() does NOT set the message to 0 (it's empty) so that |
|
2845 | 2850 | # will still get a traceback. Note that the structure of the |
|
2846 | 2851 | # SystemExit exception changed between Python 2.4 and 2.5, so |
|
2847 | 2852 | # the checks must be done in a version-dependent way. |
|
2848 | 2853 | show = False |
|
2849 | 2854 | |
|
2850 | 2855 | if sys.version_info[:2] > (2,5): |
|
2851 | 2856 | if status.message!=0 and not kw['exit_ignore']: |
|
2852 | 2857 | show = True |
|
2853 | 2858 | else: |
|
2854 | 2859 | if status.code and not kw['exit_ignore']: |
|
2855 | 2860 | show = True |
|
2856 | 2861 | if show: |
|
2857 | 2862 | self.showtraceback() |
|
2858 | 2863 | warn('Failure executing file: <%s>' % fname) |
|
2859 | 2864 | except: |
|
2860 | 2865 | self.showtraceback() |
|
2861 | 2866 | warn('Failure executing file: <%s>' % fname) |
|
2862 | 2867 | |
|
2863 | 2868 | syspath_cleanup() |
|
2864 | 2869 | |
|
2865 | 2870 | #************************* end of file <iplib.py> ***************************** |
@@ -1,773 +1,773 b'' | |||
|
1 | 1 | # -*- coding: utf-8 -*- |
|
2 | 2 | """ |
|
3 | 3 | IPython -- An enhanced Interactive Python |
|
4 | 4 | |
|
5 | 5 | Requires Python 2.1 or better. |
|
6 | 6 | |
|
7 | 7 | This file contains the main make_IPython() starter function. |
|
8 | 8 | """ |
|
9 | 9 | |
|
10 | 10 | #***************************************************************************** |
|
11 | 11 | # Copyright (C) 2008-2009 The IPython Development Team |
|
12 | 12 | # Copyright (C) 2001-2007 Fernando Perez. <fperez@colorado.edu> |
|
13 | 13 | # |
|
14 | 14 | # Distributed under the terms of the BSD License. The full license is in |
|
15 | 15 | # the file COPYING, distributed as part of this software. |
|
16 | 16 | #***************************************************************************** |
|
17 | 17 | |
|
18 | 18 | try: |
|
19 | 19 | credits._Printer__data = """ |
|
20 | 20 | Python: %s |
|
21 | 21 | |
|
22 | 22 | IPython: The IPython Development Team. |
|
23 | 23 | See http://ipython.scipy.org for more information.""" \ |
|
24 | 24 | % credits._Printer__data |
|
25 | 25 | |
|
26 | 26 | copyright._Printer__data += """ |
|
27 | 27 | |
|
28 | 28 | Copyright (c) 2008-2009 The IPython Development Team. |
|
29 | 29 | Copyright (c) 2001-2007 Fernando Perez, Janko Hauser, Nathan Gray. |
|
30 | 30 | All Rights Reserved.""" |
|
31 | 31 | except NameError: |
|
32 | 32 | # Can happen if ipython was started with 'python -S', so that site.py is |
|
33 | 33 | # not loaded |
|
34 | 34 | pass |
|
35 | 35 | |
|
36 | 36 | #**************************************************************************** |
|
37 | 37 | # Required modules |
|
38 | 38 | |
|
39 | 39 | # From the standard library |
|
40 | 40 | import __main__ |
|
41 | 41 | import __builtin__ |
|
42 | 42 | import os |
|
43 | 43 | import re |
|
44 | 44 | import sys |
|
45 | 45 | import types |
|
46 | 46 | from pprint import pprint,pformat |
|
47 | 47 | |
|
48 | 48 | # Our own |
|
49 | 49 | from IPython import DPyGetOpt |
|
50 | 50 | from IPython import Release |
|
51 | 51 | from IPython.ipstruct import Struct |
|
52 | 52 | from IPython.OutputTrap import OutputTrap |
|
53 | 53 | from IPython.ConfigLoader import ConfigLoader |
|
54 | 54 | from IPython.iplib import InteractiveShell |
|
55 | 55 | from IPython.usage import cmd_line_usage,interactive_usage |
|
56 | 56 | from IPython.genutils import * |
|
57 | 57 | |
|
58 | def force_import(modname): | |
|
59 | if modname in sys.modules: | |
|
60 |
|
|
|
58 | def force_import(modname,force_reload=False): | |
|
59 | if modname in sys.modules and force_reload: | |
|
60 | info("reloading: %s" % modname) | |
|
61 | 61 | reload(sys.modules[modname]) |
|
62 | 62 | else: |
|
63 | 63 | __import__(modname) |
|
64 | 64 | |
|
65 | 65 | |
|
66 | 66 | #----------------------------------------------------------------------------- |
|
67 | 67 | def make_IPython(argv=None,user_ns=None,user_global_ns=None,debug=1, |
|
68 | 68 | rc_override=None,shell_class=InteractiveShell, |
|
69 | 69 | embedded=False,**kw): |
|
70 | 70 | """This is a dump of IPython into a single function. |
|
71 | 71 | |
|
72 | 72 | Later it will have to be broken up in a sensible manner. |
|
73 | 73 | |
|
74 | 74 | Arguments: |
|
75 | 75 | |
|
76 | 76 | - argv: a list similar to sys.argv[1:]. It should NOT contain the desired |
|
77 | 77 | script name, b/c DPyGetOpt strips the first argument only for the real |
|
78 | 78 | sys.argv. |
|
79 | 79 | |
|
80 | 80 | - user_ns: a dict to be used as the user's namespace.""" |
|
81 | 81 | |
|
82 | 82 | #---------------------------------------------------------------------- |
|
83 | 83 | # Defaults and initialization |
|
84 | 84 | |
|
85 | 85 | # For developer debugging, deactivates crash handler and uses pdb. |
|
86 | 86 | DEVDEBUG = False |
|
87 | 87 | |
|
88 | 88 | if argv is None: |
|
89 | 89 | argv = sys.argv |
|
90 | 90 | |
|
91 | 91 | # __IP is the main global that lives throughout and represents the whole |
|
92 | 92 | # application. If the user redefines it, all bets are off as to what |
|
93 | 93 | # happens. |
|
94 | 94 | |
|
95 | 95 | # __IP is the name of he global which the caller will have accessible as |
|
96 | 96 | # __IP.name. We set its name via the first parameter passed to |
|
97 | 97 | # InteractiveShell: |
|
98 | 98 | |
|
99 | 99 | IP = shell_class('__IP',user_ns=user_ns,user_global_ns=user_global_ns, |
|
100 | 100 | embedded=embedded,**kw) |
|
101 | 101 | |
|
102 | 102 | # Put 'help' in the user namespace |
|
103 | 103 | try: |
|
104 | 104 | from site import _Helper |
|
105 | 105 | IP.user_ns['help'] = _Helper() |
|
106 | 106 | except ImportError: |
|
107 | 107 | warn('help() not available - check site.py') |
|
108 | 108 | |
|
109 | 109 | if DEVDEBUG: |
|
110 | 110 | # For developer debugging only (global flag) |
|
111 | 111 | from IPython import ultraTB |
|
112 | 112 | sys.excepthook = ultraTB.VerboseTB(call_pdb=1) |
|
113 | 113 | |
|
114 | 114 | IP.BANNER_PARTS = ['Python %s\n' |
|
115 | 115 | 'Type "copyright", "credits" or "license" ' |
|
116 | 116 | 'for more information.\n' |
|
117 | 117 | % (sys.version.split('\n')[0],), |
|
118 | 118 | "IPython %s -- An enhanced Interactive Python." |
|
119 | 119 | % (Release.version,), |
|
120 | 120 | """\ |
|
121 | 121 | ? -> Introduction and overview of IPython's features. |
|
122 | 122 | %quickref -> Quick reference. |
|
123 | 123 | help -> Python's own help system. |
|
124 | 124 | object? -> Details about 'object'. ?object also works, ?? prints more. |
|
125 | 125 | """ ] |
|
126 | 126 | |
|
127 | 127 | IP.usage = interactive_usage |
|
128 | 128 | |
|
129 | 129 | # Platform-dependent suffix. |
|
130 | 130 | if os.name == 'posix': |
|
131 | 131 | rc_suffix = '' |
|
132 | 132 | else: |
|
133 | 133 | rc_suffix = '.ini' |
|
134 | 134 | |
|
135 | 135 | # default directory for configuration |
|
136 | 136 | ipythondir_def = get_ipython_dir() |
|
137 | 137 | |
|
138 | 138 | sys.path.insert(0, '') # add . to sys.path. Fix from Prabhu Ramachandran |
|
139 | 139 | |
|
140 | 140 | # we need the directory where IPython itself is installed |
|
141 | 141 | import IPython |
|
142 | 142 | IPython_dir = os.path.dirname(IPython.__file__) |
|
143 | 143 | del IPython |
|
144 | 144 | |
|
145 | 145 | #------------------------------------------------------------------------- |
|
146 | 146 | # Command line handling |
|
147 | 147 | |
|
148 | 148 | # Valid command line options (uses DPyGetOpt syntax, like Perl's |
|
149 | 149 | # GetOpt::Long) |
|
150 | 150 | |
|
151 | 151 | # Any key not listed here gets deleted even if in the file (like session |
|
152 | 152 | # or profile). That's deliberate, to maintain the rc namespace clean. |
|
153 | 153 | |
|
154 | 154 | # Each set of options appears twice: under _conv only the names are |
|
155 | 155 | # listed, indicating which type they must be converted to when reading the |
|
156 | 156 | # ipythonrc file. And under DPyGetOpt they are listed with the regular |
|
157 | 157 | # DPyGetOpt syntax (=s,=i,:f,etc). |
|
158 | 158 | |
|
159 | 159 | # Make sure there's a space before each end of line (they get auto-joined!) |
|
160 | 160 | cmdline_opts = ('autocall=i autoindent! automagic! banner! cache_size|cs=i ' |
|
161 | 161 | 'c=s classic|cl color_info! colors=s confirm_exit! ' |
|
162 | 162 | 'debug! deep_reload! editor=s log|l messages! nosep ' |
|
163 | 163 | 'object_info_string_level=i pdb! ' |
|
164 | 164 | 'pprint! prompt_in1|pi1=s prompt_in2|pi2=s prompt_out|po=s ' |
|
165 | 165 | 'pydb! ' |
|
166 | 166 | 'pylab_import_all! ' |
|
167 | 167 | 'quick screen_length|sl=i prompts_pad_left=i ' |
|
168 | 168 | 'logfile|lf=s logplay|lp=s profile|p=s ' |
|
169 | 169 | 'readline! readline_merge_completions! ' |
|
170 | 170 | 'readline_omit__names! ' |
|
171 | 171 | 'rcfile=s separate_in|si=s separate_out|so=s ' |
|
172 | 172 | 'separate_out2|so2=s xmode=s wildcards_case_sensitive! ' |
|
173 | 173 | 'magic_docstrings system_verbose! ' |
|
174 | 174 | 'multi_line_specials! ' |
|
175 | 175 | 'term_title! wxversion=s ' |
|
176 | 176 | 'autoedit_syntax!') |
|
177 | 177 | |
|
178 | 178 | # Options that can *only* appear at the cmd line (not in rcfiles). |
|
179 | 179 | |
|
180 | 180 | cmdline_only = ('help interact|i ipythondir=s Version upgrade ' |
|
181 | 181 | 'gthread! qthread! q4thread! wthread! tkthread! pylab! tk! ' |
|
182 | 182 | # 'twisted!' # disabled for now. |
|
183 | 183 | ) |
|
184 | 184 | |
|
185 | 185 | # Build the actual name list to be used by DPyGetOpt |
|
186 | 186 | opts_names = qw(cmdline_opts) + qw(cmdline_only) |
|
187 | 187 | |
|
188 | 188 | # Set sensible command line defaults. |
|
189 | 189 | # This should have everything from cmdline_opts and cmdline_only |
|
190 | 190 | opts_def = Struct(autocall = 1, |
|
191 | 191 | autoedit_syntax = 0, |
|
192 | 192 | autoindent = 0, |
|
193 | 193 | automagic = 1, |
|
194 | 194 | autoexec = [], |
|
195 | 195 | banner = 1, |
|
196 | 196 | c = '', |
|
197 | 197 | cache_size = 1000, |
|
198 | 198 | classic = 0, |
|
199 | 199 | color_info = 0, |
|
200 | 200 | colors = 'NoColor', |
|
201 | 201 | confirm_exit = 1, |
|
202 | 202 | debug = 0, |
|
203 | 203 | deep_reload = 0, |
|
204 | 204 | editor = '0', |
|
205 | 205 | gthread = 0, |
|
206 | 206 | help = 0, |
|
207 | 207 | interact = 0, |
|
208 | 208 | ipythondir = ipythondir_def, |
|
209 | 209 | log = 0, |
|
210 | 210 | logfile = '', |
|
211 | 211 | logplay = '', |
|
212 | 212 | messages = 1, |
|
213 | 213 | multi_line_specials = 1, |
|
214 | 214 | nosep = 0, |
|
215 | 215 | object_info_string_level = 0, |
|
216 | 216 | pdb = 0, |
|
217 | 217 | pprint = 0, |
|
218 | 218 | profile = '', |
|
219 | 219 | prompt_in1 = 'In [\\#]: ', |
|
220 | 220 | prompt_in2 = ' .\\D.: ', |
|
221 | 221 | prompt_out = 'Out[\\#]: ', |
|
222 | 222 | prompts_pad_left = 1, |
|
223 | 223 | pydb = 0, |
|
224 | 224 | pylab = 0, |
|
225 | 225 | pylab_import_all = 1, |
|
226 | 226 | q4thread = 0, |
|
227 | 227 | qthread = 0, |
|
228 | 228 | quick = 0, |
|
229 | 229 | quiet = 0, |
|
230 | 230 | rcfile = 'ipythonrc' + rc_suffix, |
|
231 | 231 | readline = 1, |
|
232 | 232 | readline_merge_completions = 1, |
|
233 | 233 | readline_omit__names = 0, |
|
234 | 234 | screen_length = 0, |
|
235 | 235 | separate_in = '\n', |
|
236 | 236 | separate_out = '\n', |
|
237 | 237 | separate_out2 = '', |
|
238 | 238 | system_header = 'IPython system call: ', |
|
239 | 239 | system_verbose = 0, |
|
240 | 240 | term_title = 1, |
|
241 | 241 | tk = 0, |
|
242 | 242 | #twisted= 0, # disabled for now |
|
243 | 243 | upgrade = 0, |
|
244 | 244 | Version = 0, |
|
245 | 245 | wildcards_case_sensitive = 1, |
|
246 | 246 | wthread = 0, |
|
247 | 247 | wxversion = '0', |
|
248 | 248 | xmode = 'Context', |
|
249 | 249 | magic_docstrings = 0, # undocumented, for doc generation |
|
250 | 250 | ) |
|
251 | 251 | |
|
252 | 252 | # Things that will *only* appear in rcfiles (not at the command line). |
|
253 | 253 | # Make sure there's a space before each end of line (they get auto-joined!) |
|
254 | 254 | rcfile_opts = { qwflat: 'include import_mod import_all execfile ', |
|
255 | 255 | qw_lol: 'import_some ', |
|
256 | 256 | # for things with embedded whitespace: |
|
257 | 257 | list_strings:'execute alias readline_parse_and_bind ', |
|
258 | 258 | # Regular strings need no conversion: |
|
259 | 259 | None:'readline_remove_delims ', |
|
260 | 260 | } |
|
261 | 261 | # Default values for these |
|
262 | 262 | rc_def = Struct(include = [], |
|
263 | 263 | import_mod = [], |
|
264 | 264 | import_all = [], |
|
265 | 265 | import_some = [[]], |
|
266 | 266 | execute = [], |
|
267 | 267 | execfile = [], |
|
268 | 268 | alias = [], |
|
269 | 269 | readline_parse_and_bind = [], |
|
270 | 270 | readline_remove_delims = '', |
|
271 | 271 | ) |
|
272 | 272 | |
|
273 | 273 | # Build the type conversion dictionary from the above tables: |
|
274 | 274 | typeconv = rcfile_opts.copy() |
|
275 | 275 | typeconv.update(optstr2types(cmdline_opts)) |
|
276 | 276 | |
|
277 | 277 | # FIXME: the None key appears in both, put that back together by hand. Ugly! |
|
278 | 278 | typeconv[None] += ' ' + rcfile_opts[None] |
|
279 | 279 | |
|
280 | 280 | # Remove quotes at ends of all strings (used to protect spaces) |
|
281 | 281 | typeconv[unquote_ends] = typeconv[None] |
|
282 | 282 | del typeconv[None] |
|
283 | 283 | |
|
284 | 284 | # Build the list we'll use to make all config decisions with defaults: |
|
285 | 285 | opts_all = opts_def.copy() |
|
286 | 286 | opts_all.update(rc_def) |
|
287 | 287 | |
|
288 | 288 | # Build conflict resolver for recursive loading of config files: |
|
289 | 289 | # - preserve means the outermost file maintains the value, it is not |
|
290 | 290 | # overwritten if an included file has the same key. |
|
291 | 291 | # - add_flip applies + to the two values, so it better make sense to add |
|
292 | 292 | # those types of keys. But it flips them first so that things loaded |
|
293 | 293 | # deeper in the inclusion chain have lower precedence. |
|
294 | 294 | conflict = {'preserve': ' '.join([ typeconv[int], |
|
295 | 295 | typeconv[unquote_ends] ]), |
|
296 | 296 | 'add_flip': ' '.join([ typeconv[qwflat], |
|
297 | 297 | typeconv[qw_lol], |
|
298 | 298 | typeconv[list_strings] ]) |
|
299 | 299 | } |
|
300 | 300 | |
|
301 | 301 | # Now actually process the command line |
|
302 | 302 | getopt = DPyGetOpt.DPyGetOpt() |
|
303 | 303 | getopt.setIgnoreCase(0) |
|
304 | 304 | |
|
305 | 305 | getopt.parseConfiguration(opts_names) |
|
306 | 306 | |
|
307 | 307 | try: |
|
308 | 308 | getopt.processArguments(argv) |
|
309 | 309 | except DPyGetOpt.ArgumentError, exc: |
|
310 | 310 | print cmd_line_usage |
|
311 | 311 | warn('\nError in Arguments: "%s"' % exc) |
|
312 | 312 | sys.exit(1) |
|
313 | 313 | |
|
314 | 314 | # convert the options dict to a struct for much lighter syntax later |
|
315 | 315 | opts = Struct(getopt.optionValues) |
|
316 | 316 | args = getopt.freeValues |
|
317 | 317 | |
|
318 | 318 | # this is the struct (which has default values at this point) with which |
|
319 | 319 | # we make all decisions: |
|
320 | 320 | opts_all.update(opts) |
|
321 | 321 | |
|
322 | 322 | # Options that force an immediate exit |
|
323 | 323 | if opts_all.help: |
|
324 | 324 | page(cmd_line_usage) |
|
325 | 325 | sys.exit() |
|
326 | 326 | |
|
327 | 327 | if opts_all.Version: |
|
328 | 328 | print Release.version |
|
329 | 329 | sys.exit() |
|
330 | 330 | |
|
331 | 331 | if opts_all.magic_docstrings: |
|
332 | 332 | IP.magic_magic('-latex') |
|
333 | 333 | sys.exit() |
|
334 | 334 | |
|
335 | 335 | # add personal ipythondir to sys.path so that users can put things in |
|
336 | 336 | # there for customization |
|
337 | 337 | sys.path.append(os.path.abspath(opts_all.ipythondir)) |
|
338 | 338 | |
|
339 | 339 | # Create user config directory if it doesn't exist. This must be done |
|
340 | 340 | # *after* getting the cmd line options. |
|
341 | 341 | if not os.path.isdir(opts_all.ipythondir): |
|
342 | 342 | IP.user_setup(opts_all.ipythondir,rc_suffix,'install') |
|
343 | 343 | |
|
344 | 344 | # upgrade user config files while preserving a copy of the originals |
|
345 | 345 | if opts_all.upgrade: |
|
346 | 346 | IP.user_setup(opts_all.ipythondir,rc_suffix,'upgrade') |
|
347 | 347 | |
|
348 | 348 | # check mutually exclusive options in the *original* command line |
|
349 | 349 | mutex_opts(opts,[qw('log logfile'),qw('rcfile profile'), |
|
350 | 350 | qw('classic profile'),qw('classic rcfile')]) |
|
351 | 351 | |
|
352 | 352 | #--------------------------------------------------------------------------- |
|
353 | 353 | # Log replay |
|
354 | 354 | |
|
355 | 355 | # if -logplay, we need to 'become' the other session. That basically means |
|
356 | 356 | # replacing the current command line environment with that of the old |
|
357 | 357 | # session and moving on. |
|
358 | 358 | |
|
359 | 359 | # this is needed so that later we know we're in session reload mode, as |
|
360 | 360 | # opts_all will get overwritten: |
|
361 | 361 | load_logplay = 0 |
|
362 | 362 | |
|
363 | 363 | if opts_all.logplay: |
|
364 | 364 | load_logplay = opts_all.logplay |
|
365 | 365 | opts_debug_save = opts_all.debug |
|
366 | 366 | try: |
|
367 | 367 | logplay = open(opts_all.logplay) |
|
368 | 368 | except IOError: |
|
369 | 369 | if opts_all.debug: IP.InteractiveTB() |
|
370 | 370 | warn('Could not open logplay file '+`opts_all.logplay`) |
|
371 | 371 | # restore state as if nothing had happened and move on, but make |
|
372 | 372 | # sure that later we don't try to actually load the session file |
|
373 | 373 | logplay = None |
|
374 | 374 | load_logplay = 0 |
|
375 | 375 | del opts_all.logplay |
|
376 | 376 | else: |
|
377 | 377 | try: |
|
378 | 378 | logplay.readline() |
|
379 | 379 | logplay.readline(); |
|
380 | 380 | # this reloads that session's command line |
|
381 | 381 | cmd = logplay.readline()[6:] |
|
382 | 382 | exec cmd |
|
383 | 383 | # restore the true debug flag given so that the process of |
|
384 | 384 | # session loading itself can be monitored. |
|
385 | 385 | opts.debug = opts_debug_save |
|
386 | 386 | # save the logplay flag so later we don't overwrite the log |
|
387 | 387 | opts.logplay = load_logplay |
|
388 | 388 | # now we must update our own structure with defaults |
|
389 | 389 | opts_all.update(opts) |
|
390 | 390 | # now load args |
|
391 | 391 | cmd = logplay.readline()[6:] |
|
392 | 392 | exec cmd |
|
393 | 393 | logplay.close() |
|
394 | 394 | except: |
|
395 | 395 | logplay.close() |
|
396 | 396 | if opts_all.debug: IP.InteractiveTB() |
|
397 | 397 | warn("Logplay file lacking full configuration information.\n" |
|
398 | 398 | "I'll try to read it, but some things may not work.") |
|
399 | 399 | |
|
400 | 400 | #------------------------------------------------------------------------- |
|
401 | 401 | # set up output traps: catch all output from files, being run, modules |
|
402 | 402 | # loaded, etc. Then give it to the user in a clean form at the end. |
|
403 | 403 | |
|
404 | 404 | msg_out = 'Output messages. ' |
|
405 | 405 | msg_err = 'Error messages. ' |
|
406 | 406 | msg_sep = '\n' |
|
407 | 407 | msg = Struct(config = OutputTrap('Configuration Loader',msg_out, |
|
408 | 408 | msg_err,msg_sep,debug, |
|
409 | 409 | quiet_out=1), |
|
410 | 410 | user_exec = OutputTrap('User File Execution',msg_out, |
|
411 | 411 | msg_err,msg_sep,debug), |
|
412 | 412 | logplay = OutputTrap('Log Loader',msg_out, |
|
413 | 413 | msg_err,msg_sep,debug), |
|
414 | 414 | summary = '' |
|
415 | 415 | ) |
|
416 | 416 | |
|
417 | 417 | #------------------------------------------------------------------------- |
|
418 | 418 | # Process user ipythonrc-type configuration files |
|
419 | 419 | |
|
420 | 420 | # turn on output trapping and log to msg.config |
|
421 | 421 | # remember that with debug on, trapping is actually disabled |
|
422 | 422 | msg.config.trap_all() |
|
423 | 423 | |
|
424 | 424 | # look for rcfile in current or default directory |
|
425 | 425 | try: |
|
426 | 426 | opts_all.rcfile = filefind(opts_all.rcfile,opts_all.ipythondir) |
|
427 | 427 | except IOError: |
|
428 | 428 | if opts_all.debug: IP.InteractiveTB() |
|
429 | 429 | warn('Configuration file %s not found. Ignoring request.' |
|
430 | 430 | % (opts_all.rcfile) ) |
|
431 | 431 | |
|
432 | 432 | # 'profiles' are a shorthand notation for config filenames |
|
433 | 433 | profile_handled_by_legacy = False |
|
434 | 434 | if opts_all.profile: |
|
435 | 435 | |
|
436 | 436 | try: |
|
437 | 437 | opts_all.rcfile = filefind('ipythonrc-' + opts_all.profile |
|
438 | 438 | + rc_suffix, |
|
439 | 439 | opts_all.ipythondir) |
|
440 | 440 | profile_handled_by_legacy = True |
|
441 | 441 | except IOError: |
|
442 | 442 | if opts_all.debug: IP.InteractiveTB() |
|
443 | 443 | opts.profile = '' # remove profile from options if invalid |
|
444 | 444 | # We won't warn anymore, primary method is ipy_profile_PROFNAME |
|
445 | 445 | # which does trigger a warning. |
|
446 | 446 | |
|
447 | 447 | # load the config file |
|
448 | 448 | rcfiledata = None |
|
449 | 449 | if opts_all.quick: |
|
450 | 450 | print 'Launching IPython in quick mode. No config file read.' |
|
451 | 451 | elif opts_all.rcfile: |
|
452 | 452 | try: |
|
453 | 453 | cfg_loader = ConfigLoader(conflict) |
|
454 | 454 | rcfiledata = cfg_loader.load(opts_all.rcfile,typeconv, |
|
455 | 455 | 'include',opts_all.ipythondir, |
|
456 | 456 | purge = 1, |
|
457 | 457 | unique = conflict['preserve']) |
|
458 | 458 | except: |
|
459 | 459 | IP.InteractiveTB() |
|
460 | 460 | warn('Problems loading configuration file '+ |
|
461 | 461 | `opts_all.rcfile`+ |
|
462 | 462 | '\nStarting with default -bare bones- configuration.') |
|
463 | 463 | else: |
|
464 | 464 | warn('No valid configuration file found in either currrent directory\n'+ |
|
465 | 465 | 'or in the IPython config. directory: '+`opts_all.ipythondir`+ |
|
466 | 466 | '\nProceeding with internal defaults.') |
|
467 | 467 | |
|
468 | 468 | #------------------------------------------------------------------------ |
|
469 | 469 | # Set exception handlers in mode requested by user. |
|
470 | 470 | otrap = OutputTrap(trap_out=1) # trap messages from magic_xmode |
|
471 | 471 | IP.magic_xmode(opts_all.xmode) |
|
472 | 472 | otrap.release_out() |
|
473 | 473 | |
|
474 | 474 | #------------------------------------------------------------------------ |
|
475 | 475 | # Execute user config |
|
476 | 476 | |
|
477 | 477 | # Create a valid config structure with the right precedence order: |
|
478 | 478 | # defaults < rcfile < command line. This needs to be in the instance, so |
|
479 | 479 | # that method calls below that rely on it find it. |
|
480 | 480 | IP.rc = rc_def.copy() |
|
481 | 481 | |
|
482 | 482 | # Work with a local alias inside this routine to avoid unnecessary |
|
483 | 483 | # attribute lookups. |
|
484 | 484 | IP_rc = IP.rc |
|
485 | 485 | |
|
486 | 486 | IP_rc.update(opts_def) |
|
487 | 487 | if rcfiledata: |
|
488 | 488 | # now we can update |
|
489 | 489 | IP_rc.update(rcfiledata) |
|
490 | 490 | IP_rc.update(opts) |
|
491 | 491 | IP_rc.update(rc_override) |
|
492 | 492 | |
|
493 | 493 | # Store the original cmd line for reference: |
|
494 | 494 | IP_rc.opts = opts |
|
495 | 495 | IP_rc.args = args |
|
496 | 496 | |
|
497 | 497 | # create a *runtime* Struct like rc for holding parameters which may be |
|
498 | 498 | # created and/or modified by runtime user extensions. |
|
499 | 499 | IP.runtime_rc = Struct() |
|
500 | 500 | |
|
501 | 501 | # from this point on, all config should be handled through IP_rc, |
|
502 | 502 | # opts* shouldn't be used anymore. |
|
503 | 503 | |
|
504 | 504 | |
|
505 | 505 | # update IP_rc with some special things that need manual |
|
506 | 506 | # tweaks. Basically options which affect other options. I guess this |
|
507 | 507 | # should just be written so that options are fully orthogonal and we |
|
508 | 508 | # wouldn't worry about this stuff! |
|
509 | 509 | |
|
510 | 510 | if IP_rc.classic: |
|
511 | 511 | IP_rc.quick = 1 |
|
512 | 512 | IP_rc.cache_size = 0 |
|
513 | 513 | IP_rc.pprint = 0 |
|
514 | 514 | IP_rc.prompt_in1 = '>>> ' |
|
515 | 515 | IP_rc.prompt_in2 = '... ' |
|
516 | 516 | IP_rc.prompt_out = '' |
|
517 | 517 | IP_rc.separate_in = IP_rc.separate_out = IP_rc.separate_out2 = '0' |
|
518 | 518 | IP_rc.colors = 'NoColor' |
|
519 | 519 | IP_rc.xmode = 'Plain' |
|
520 | 520 | |
|
521 | 521 | IP.pre_config_initialization() |
|
522 | 522 | # configure readline |
|
523 | 523 | |
|
524 | 524 | # update exception handlers with rc file status |
|
525 | 525 | otrap.trap_out() # I don't want these messages ever. |
|
526 | 526 | IP.magic_xmode(IP_rc.xmode) |
|
527 | 527 | otrap.release_out() |
|
528 | 528 | |
|
529 | 529 | # activate logging if requested and not reloading a log |
|
530 | 530 | if IP_rc.logplay: |
|
531 | 531 | IP.magic_logstart(IP_rc.logplay + ' append') |
|
532 | 532 | elif IP_rc.logfile: |
|
533 | 533 | IP.magic_logstart(IP_rc.logfile) |
|
534 | 534 | elif IP_rc.log: |
|
535 | 535 | IP.magic_logstart() |
|
536 | 536 | |
|
537 | 537 | # find user editor so that it we don't have to look it up constantly |
|
538 | 538 | if IP_rc.editor.strip()=='0': |
|
539 | 539 | try: |
|
540 | 540 | ed = os.environ['EDITOR'] |
|
541 | 541 | except KeyError: |
|
542 | 542 | if os.name == 'posix': |
|
543 | 543 | ed = 'vi' # the only one guaranteed to be there! |
|
544 | 544 | else: |
|
545 | 545 | ed = 'notepad' # same in Windows! |
|
546 | 546 | IP_rc.editor = ed |
|
547 | 547 | |
|
548 | 548 | # Keep track of whether this is an embedded instance or not (useful for |
|
549 | 549 | # post-mortems). |
|
550 | 550 | IP_rc.embedded = IP.embedded |
|
551 | 551 | |
|
552 | 552 | # Recursive reload |
|
553 | 553 | try: |
|
554 | 554 | from IPython import deep_reload |
|
555 | 555 | if IP_rc.deep_reload: |
|
556 | 556 | __builtin__.reload = deep_reload.reload |
|
557 | 557 | else: |
|
558 | 558 | __builtin__.dreload = deep_reload.reload |
|
559 | 559 | del deep_reload |
|
560 | 560 | except ImportError: |
|
561 | 561 | pass |
|
562 | 562 | |
|
563 | 563 | # Save the current state of our namespace so that the interactive shell |
|
564 | 564 | # can later know which variables have been created by us from config files |
|
565 | 565 | # and loading. This way, loading a file (in any way) is treated just like |
|
566 | 566 | # defining things on the command line, and %who works as expected. |
|
567 | 567 | |
|
568 | 568 | # DON'T do anything that affects the namespace beyond this point! |
|
569 | 569 | IP.internal_ns.update(__main__.__dict__) |
|
570 | 570 | |
|
571 | 571 | #IP.internal_ns.update(locals()) # so our stuff doesn't show up in %who |
|
572 | 572 | |
|
573 | 573 | # Now run through the different sections of the users's config |
|
574 | 574 | if IP_rc.debug: |
|
575 | 575 | print 'Trying to execute the following configuration structure:' |
|
576 | 576 | print '(Things listed first are deeper in the inclusion tree and get' |
|
577 | 577 | print 'loaded first).\n' |
|
578 | 578 | pprint(IP_rc.__dict__) |
|
579 | 579 | |
|
580 | 580 | for mod in IP_rc.import_mod: |
|
581 | 581 | try: |
|
582 | 582 | exec 'import '+mod in IP.user_ns |
|
583 | 583 | except : |
|
584 | 584 | IP.InteractiveTB() |
|
585 | 585 | import_fail_info(mod) |
|
586 | 586 | |
|
587 | 587 | for mod_fn in IP_rc.import_some: |
|
588 | 588 | if not mod_fn == []: |
|
589 | 589 | mod,fn = mod_fn[0],','.join(mod_fn[1:]) |
|
590 | 590 | try: |
|
591 | 591 | exec 'from '+mod+' import '+fn in IP.user_ns |
|
592 | 592 | except : |
|
593 | 593 | IP.InteractiveTB() |
|
594 | 594 | import_fail_info(mod,fn) |
|
595 | 595 | |
|
596 | 596 | for mod in IP_rc.import_all: |
|
597 | 597 | try: |
|
598 | 598 | exec 'from '+mod+' import *' in IP.user_ns |
|
599 | 599 | except : |
|
600 | 600 | IP.InteractiveTB() |
|
601 | 601 | import_fail_info(mod) |
|
602 | 602 | |
|
603 | 603 | for code in IP_rc.execute: |
|
604 | 604 | try: |
|
605 | 605 | exec code in IP.user_ns |
|
606 | 606 | except: |
|
607 | 607 | IP.InteractiveTB() |
|
608 | 608 | warn('Failure executing code: ' + `code`) |
|
609 | 609 | |
|
610 | 610 | # Execute the files the user wants in ipythonrc |
|
611 | 611 | for file in IP_rc.execfile: |
|
612 | 612 | try: |
|
613 | 613 | file = filefind(file,sys.path+[IPython_dir]) |
|
614 | 614 | except IOError: |
|
615 | 615 | warn(itpl('File $file not found. Skipping it.')) |
|
616 | 616 | else: |
|
617 | 617 | IP.safe_execfile(os.path.expanduser(file),IP.user_ns) |
|
618 | 618 | |
|
619 | 619 | # finally, try importing ipy_*_conf for final configuration |
|
620 | 620 | try: |
|
621 | 621 | import ipy_system_conf |
|
622 | 622 | except ImportError: |
|
623 | 623 | if opts_all.debug: IP.InteractiveTB() |
|
624 | 624 | warn("Could not import 'ipy_system_conf'") |
|
625 | 625 | except: |
|
626 | 626 | IP.InteractiveTB() |
|
627 | 627 | import_fail_info('ipy_system_conf') |
|
628 | ||
|
628 | ||
|
629 | 629 | # only import prof module if ipythonrc-PROF was not found |
|
630 | 630 | if opts_all.profile and not profile_handled_by_legacy: |
|
631 | 631 | profmodname = 'ipy_profile_' + opts_all.profile |
|
632 | 632 | try: |
|
633 | ||
|
634 | 633 | force_import(profmodname) |
|
635 | 634 | except: |
|
636 | 635 | IP.InteractiveTB() |
|
637 |
print "Error importing",profmodname, |
|
|
636 | print "Error importing",profmodname,\ | |
|
637 | "- perhaps you should run %upgrade?" | |
|
638 | 638 | import_fail_info(profmodname) |
|
639 | 639 | else: |
|
640 | 640 | opts.profile = opts_all.profile |
|
641 | 641 | else: |
|
642 | 642 | force_import('ipy_profile_none') |
|
643 | # XXX - this is wrong: ipy_user_conf should not be loaded unconditionally, | |
|
644 | # since the user could have specified a config file path by hand. | |
|
643 | 645 | try: |
|
644 | ||
|
645 | 646 | force_import('ipy_user_conf') |
|
646 | ||
|
647 | 647 | except: |
|
648 | 648 | conf = opts_all.ipythondir + "/ipy_user_conf.py" |
|
649 | 649 | IP.InteractiveTB() |
|
650 | 650 | if not os.path.isfile(conf): |
|
651 | 651 | warn(conf + ' does not exist, please run %upgrade!') |
|
652 | 652 | |
|
653 | 653 | import_fail_info("ipy_user_conf") |
|
654 | 654 | |
|
655 | 655 | # Define the history file for saving commands in between sessions |
|
656 | 656 | try: |
|
657 | 657 | histfname = 'history-%s' % opts.profile |
|
658 | 658 | except AttributeError: |
|
659 | 659 | histfname = 'history' |
|
660 | 660 | IP.histfile = os.path.join(opts_all.ipythondir,histfname) |
|
661 | 661 | |
|
662 | 662 | # finally, push the argv to options again to ensure highest priority |
|
663 | 663 | IP_rc.update(opts) |
|
664 | 664 | |
|
665 | 665 | # release stdout and stderr and save config log into a global summary |
|
666 | 666 | msg.config.release_all() |
|
667 | 667 | if IP_rc.messages: |
|
668 | 668 | msg.summary += msg.config.summary_all() |
|
669 | 669 | |
|
670 | 670 | #------------------------------------------------------------------------ |
|
671 | 671 | # Setup interactive session |
|
672 | 672 | |
|
673 | 673 | # Now we should be fully configured. We can then execute files or load |
|
674 | 674 | # things only needed for interactive use. Then we'll open the shell. |
|
675 | 675 | |
|
676 | 676 | # Take a snapshot of the user namespace before opening the shell. That way |
|
677 | 677 | # we'll be able to identify which things were interactively defined and |
|
678 | 678 | # which were defined through config files. |
|
679 | 679 | IP.user_config_ns.update(IP.user_ns) |
|
680 | 680 | |
|
681 | 681 | # Force reading a file as if it were a session log. Slower but safer. |
|
682 | 682 | if load_logplay: |
|
683 | 683 | print 'Replaying log...' |
|
684 | 684 | try: |
|
685 | 685 | if IP_rc.debug: |
|
686 | 686 | logplay_quiet = 0 |
|
687 | 687 | else: |
|
688 | 688 | logplay_quiet = 1 |
|
689 | 689 | |
|
690 | 690 | msg.logplay.trap_all() |
|
691 | 691 | IP.safe_execfile(load_logplay,IP.user_ns, |
|
692 | 692 | islog = 1, quiet = logplay_quiet) |
|
693 | 693 | msg.logplay.release_all() |
|
694 | 694 | if IP_rc.messages: |
|
695 | 695 | msg.summary += msg.logplay.summary_all() |
|
696 | 696 | except: |
|
697 | 697 | warn('Problems replaying logfile %s.' % load_logplay) |
|
698 | 698 | IP.InteractiveTB() |
|
699 | 699 | |
|
700 | 700 | # Load remaining files in command line |
|
701 | 701 | msg.user_exec.trap_all() |
|
702 | 702 | |
|
703 | 703 | # Do NOT execute files named in the command line as scripts to be loaded |
|
704 | 704 | # by embedded instances. Doing so has the potential for an infinite |
|
705 | 705 | # recursion if there are exceptions thrown in the process. |
|
706 | 706 | |
|
707 | 707 | # XXX FIXME: the execution of user files should be moved out to after |
|
708 | 708 | # ipython is fully initialized, just as if they were run via %run at the |
|
709 | 709 | # ipython prompt. This would also give them the benefit of ipython's |
|
710 | 710 | # nice tracebacks. |
|
711 | 711 | |
|
712 | 712 | if (not embedded and IP_rc.args and |
|
713 | 713 | not IP_rc.args[0].lower().endswith('.ipy')): |
|
714 | 714 | name_save = IP.user_ns['__name__'] |
|
715 | 715 | IP.user_ns['__name__'] = '__main__' |
|
716 | 716 | # Set our own excepthook in case the user code tries to call it |
|
717 | 717 | # directly. This prevents triggering the IPython crash handler. |
|
718 | 718 | old_excepthook,sys.excepthook = sys.excepthook, IP.excepthook |
|
719 | 719 | |
|
720 | 720 | save_argv = sys.argv[1:] # save it for later restoring |
|
721 | 721 | |
|
722 | 722 | sys.argv = args |
|
723 | 723 | |
|
724 | 724 | try: |
|
725 | 725 | IP.safe_execfile(args[0], IP.user_ns) |
|
726 | 726 | finally: |
|
727 | 727 | # Reset our crash handler in place |
|
728 | 728 | sys.excepthook = old_excepthook |
|
729 | 729 | sys.argv[:] = save_argv |
|
730 | 730 | IP.user_ns['__name__'] = name_save |
|
731 | 731 | |
|
732 | 732 | msg.user_exec.release_all() |
|
733 | 733 | |
|
734 | 734 | if IP_rc.messages: |
|
735 | 735 | msg.summary += msg.user_exec.summary_all() |
|
736 | 736 | |
|
737 | 737 | # since we can't specify a null string on the cmd line, 0 is the equivalent: |
|
738 | 738 | if IP_rc.nosep: |
|
739 | 739 | IP_rc.separate_in = IP_rc.separate_out = IP_rc.separate_out2 = '0' |
|
740 | 740 | if IP_rc.separate_in == '0': IP_rc.separate_in = '' |
|
741 | 741 | if IP_rc.separate_out == '0': IP_rc.separate_out = '' |
|
742 | 742 | if IP_rc.separate_out2 == '0': IP_rc.separate_out2 = '' |
|
743 | 743 | IP_rc.separate_in = IP_rc.separate_in.replace('\\n','\n') |
|
744 | 744 | IP_rc.separate_out = IP_rc.separate_out.replace('\\n','\n') |
|
745 | 745 | IP_rc.separate_out2 = IP_rc.separate_out2.replace('\\n','\n') |
|
746 | 746 | |
|
747 | 747 | # Determine how many lines at the bottom of the screen are needed for |
|
748 | 748 | # showing prompts, so we can know wheter long strings are to be printed or |
|
749 | 749 | # paged: |
|
750 | 750 | num_lines_bot = IP_rc.separate_in.count('\n')+1 |
|
751 | 751 | IP_rc.screen_length = IP_rc.screen_length - num_lines_bot |
|
752 | 752 | |
|
753 | 753 | # configure startup banner |
|
754 | 754 | if IP_rc.c: # regular python doesn't print the banner with -c |
|
755 | 755 | IP_rc.banner = 0 |
|
756 | 756 | if IP_rc.banner: |
|
757 | 757 | BANN_P = IP.BANNER_PARTS |
|
758 | 758 | else: |
|
759 | 759 | BANN_P = [] |
|
760 | 760 | |
|
761 | 761 | if IP_rc.profile: BANN_P.append('IPython profile: %s\n' % IP_rc.profile) |
|
762 | 762 | |
|
763 | 763 | # add message log (possibly empty) |
|
764 | 764 | if msg.summary: BANN_P.append(msg.summary) |
|
765 | 765 | # Final banner is a string |
|
766 | 766 | IP.BANNER = '\n'.join(BANN_P) |
|
767 | 767 | |
|
768 | 768 | # Finalize the IPython instance. This assumes the rc structure is fully |
|
769 | 769 | # in place. |
|
770 | 770 | IP.post_config_initialization() |
|
771 | 771 | |
|
772 | 772 | return IP |
|
773 | 773 | #************************ end of file <ipmaker.py> ************************** |
@@ -1,24 +1,25 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """The IPython1 kernel. |
|
3 | 3 | |
|
4 | 4 | The IPython kernel actually refers to three things: |
|
5 | 5 | |
|
6 | 6 | * The IPython Engine |
|
7 | 7 | * The IPython Controller |
|
8 | 8 | * Clients to the IPython Controller |
|
9 | 9 | |
|
10 | 10 | The kernel module implements the engine, controller and client and all the |
|
11 | 11 | network protocols needed for the various entities to talk to each other. |
|
12 | 12 | |
|
13 | 13 | An end user should probably begin by looking at the `client.py` module |
|
14 | 14 | if they need blocking clients or in `asyncclient.py` if they want asynchronous, |
|
15 | 15 | deferred/Twisted using clients. |
|
16 | 16 | """ |
|
17 | 17 | __docformat__ = "restructuredtext en" |
|
18 |
#----------------------------------------------------------------------------- |
|
|
18 | #----------------------------------------------------------------------------- | |
|
19 | 19 | # Copyright (C) 2008 The IPython Development Team |
|
20 | 20 | # |
|
21 | 21 | # Distributed under the terms of the BSD License. The full license is in |
|
22 | 22 | # the file COPYING, distributed as part of this software. |
|
23 |
#----------------------------------------------------------------------------- |
|
|
24 | No newline at end of file | |
|
23 | #----------------------------------------------------------------------------- | |
|
24 | ||
|
25 | from IPython.kernel.error import TaskRejectError No newline at end of file |
@@ -1,124 +1,126 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
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3 | 3 | """Default kernel configuration.""" |
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4 | 4 | |
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5 | 5 | __docformat__ = "restructuredtext en" |
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6 | 6 | |
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7 | 7 | #------------------------------------------------------------------------------- |
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8 | 8 | # Copyright (C) 2008 The IPython Development Team |
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9 | 9 | # |
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10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
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11 | 11 | # the file COPYING, distributed as part of this software. |
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12 | 12 | #------------------------------------------------------------------------------- |
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13 | 13 | |
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14 | 14 | #------------------------------------------------------------------------------- |
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15 | 15 | # Imports |
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16 | 16 | #------------------------------------------------------------------------------- |
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17 | 17 | |
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18 | import os, sys | |
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18 | 19 | from os.path import join as pjoin |
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19 | 20 | |
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20 | 21 | from IPython.external.configobj import ConfigObj |
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21 | 22 | from IPython.config.api import ConfigObjManager |
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22 | 23 | from IPython.genutils import get_ipython_dir, get_security_dir |
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23 | 24 | |
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24 | 25 | default_kernel_config = ConfigObj() |
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25 | 26 | |
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27 | # This will raise OSError if ipythondir doesn't exist. | |
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26 | 28 | security_dir = get_security_dir() |
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27 | 29 | |
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28 | 30 | #------------------------------------------------------------------------------- |
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29 | 31 | # Engine Configuration |
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30 | 32 | #------------------------------------------------------------------------------- |
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31 | 33 | |
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32 | 34 | engine_config = dict( |
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33 | 35 | logfile = '', # Empty means log to stdout |
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34 | 36 | furl_file = pjoin(security_dir, 'ipcontroller-engine.furl') |
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35 | 37 | ) |
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36 | 38 | |
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37 | 39 | #------------------------------------------------------------------------------- |
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38 | 40 | # MPI Configuration |
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39 | 41 | #------------------------------------------------------------------------------- |
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40 | 42 | |
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41 | 43 | mpi_config = dict( |
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42 | 44 | mpi4py = """from mpi4py import MPI as mpi |
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43 | 45 | mpi.size = mpi.COMM_WORLD.Get_size() |
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44 | 46 | mpi.rank = mpi.COMM_WORLD.Get_rank() |
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45 | 47 | """, |
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46 | 48 | pytrilinos = """from PyTrilinos import Epetra |
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47 | 49 | class SimpleStruct: |
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48 | 50 | pass |
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49 | 51 | mpi = SimpleStruct() |
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50 | 52 | mpi.rank = 0 |
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51 | 53 | mpi.size = 0 |
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52 | 54 | """, |
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53 | 55 | default = '' |
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54 | 56 | ) |
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55 | 57 | |
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56 | 58 | #------------------------------------------------------------------------------- |
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57 | 59 | # Controller Configuration |
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58 | 60 | #------------------------------------------------------------------------------- |
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59 | 61 | |
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60 | 62 | controller_config = dict( |
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61 | 63 | |
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62 | 64 | logfile = '', # Empty means log to stdout |
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63 | 65 | import_statement = '', |
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64 | 66 | reuse_furls = False, # If False, old furl files are deleted |
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65 | 67 | |
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66 | 68 | engine_tub = dict( |
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67 | 69 | ip = '', # Empty string means all interfaces |
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68 | 70 | port = 0, # 0 means pick a port for me |
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69 | 71 | location = '', # Empty string means try to set automatically |
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70 | 72 | secure = True, |
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71 | 73 | cert_file = pjoin(security_dir, 'ipcontroller-engine.pem'), |
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72 | 74 | ), |
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73 | 75 | engine_fc_interface = 'IPython.kernel.enginefc.IFCControllerBase', |
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74 | 76 | engine_furl_file = pjoin(security_dir, 'ipcontroller-engine.furl'), |
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75 | 77 | |
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76 | 78 | controller_interfaces = dict( |
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77 | 79 | # multiengine = dict( |
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78 | 80 | # controller_interface = 'IPython.kernel.multiengine.IMultiEngine', |
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79 | 81 | # fc_interface = 'IPython.kernel.multienginefc.IFCMultiEngine', |
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80 | 82 | # furl_file = 'ipcontroller-mec.furl' |
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81 | 83 | # ), |
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82 | 84 | task = dict( |
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83 | 85 | controller_interface = 'IPython.kernel.task.ITaskController', |
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84 | 86 | fc_interface = 'IPython.kernel.taskfc.IFCTaskController', |
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85 | 87 | furl_file = pjoin(security_dir, 'ipcontroller-tc.furl') |
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86 | 88 | ), |
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87 | 89 | multiengine = dict( |
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88 | 90 | controller_interface = 'IPython.kernel.multiengine.IMultiEngine', |
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89 | 91 | fc_interface = 'IPython.kernel.multienginefc.IFCSynchronousMultiEngine', |
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90 | 92 | furl_file = pjoin(security_dir, 'ipcontroller-mec.furl') |
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91 | 93 | ) |
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92 | 94 | ), |
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93 | 95 | |
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94 | 96 | client_tub = dict( |
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95 | 97 | ip = '', # Empty string means all interfaces |
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96 | 98 | port = 0, # 0 means pick a port for me |
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97 | 99 | location = '', # Empty string means try to set automatically |
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98 | 100 | secure = True, |
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99 | 101 | cert_file = pjoin(security_dir, 'ipcontroller-client.pem') |
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100 | 102 | ) |
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101 | 103 | ) |
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102 | 104 | |
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103 | 105 | #------------------------------------------------------------------------------- |
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104 | 106 | # Client Configuration |
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105 | 107 | #------------------------------------------------------------------------------- |
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106 | 108 | |
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107 | 109 | client_config = dict( |
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108 | 110 | client_interfaces = dict( |
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109 | 111 | task = dict( |
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110 | 112 | furl_file = pjoin(security_dir, 'ipcontroller-tc.furl') |
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111 | 113 | ), |
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112 | 114 | multiengine = dict( |
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113 | 115 | furl_file = pjoin(security_dir, 'ipcontroller-mec.furl') |
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114 | 116 | ) |
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115 | 117 | ) |
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116 | 118 | ) |
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117 | 119 | |
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118 | 120 | default_kernel_config['engine'] = engine_config |
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119 | 121 | default_kernel_config['mpi'] = mpi_config |
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120 | 122 | default_kernel_config['controller'] = controller_config |
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121 | 123 | default_kernel_config['client'] = client_config |
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122 | 124 | |
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123 | 125 | |
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124 | 126 | config_manager = ConfigObjManager(default_kernel_config, 'IPython.kernel.ini') No newline at end of file |
@@ -1,754 +1,761 b'' | |||
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1 | 1 | # encoding: utf-8 |
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2 | 2 | |
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3 | 3 | """Central interpreter object for an IPython engine. |
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4 | 4 | |
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5 | 5 | The interpreter is the object whose job is to process lines of user input and |
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6 | 6 | actually execute them in the user's namespace. |
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7 | 7 | """ |
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8 | 8 | |
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9 | 9 | __docformat__ = "restructuredtext en" |
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10 | 10 | |
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11 | 11 | #------------------------------------------------------------------------------- |
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12 | 12 | # Copyright (C) 2008 The IPython Development Team |
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13 | 13 | # |
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14 | 14 | # Distributed under the terms of the BSD License. The full license is in |
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15 | 15 | # the file COPYING, distributed as part of this software. |
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16 | 16 | #------------------------------------------------------------------------------- |
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17 | 17 | |
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18 | 18 | #------------------------------------------------------------------------------- |
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19 | 19 | # Imports |
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20 | 20 | #------------------------------------------------------------------------------- |
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21 | 21 | |
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22 | 22 | # Standard library imports. |
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23 | 23 | from types import FunctionType |
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24 | 24 | |
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25 | 25 | import __builtin__ |
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26 | 26 | import codeop |
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27 | 27 | import compiler |
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28 | 28 | import sys |
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29 | 29 | import traceback |
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30 | 30 | |
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31 | 31 | # Local imports. |
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32 | 32 | from IPython.kernel.core import ultraTB |
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33 | 33 | from IPython.kernel.core.display_trap import DisplayTrap |
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34 | 34 | from IPython.kernel.core.macro import Macro |
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35 | 35 | from IPython.kernel.core.prompts import CachedOutput |
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36 | 36 | from IPython.kernel.core.traceback_trap import TracebackTrap |
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37 | 37 | from IPython.kernel.core.util import Bunch, system_shell |
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38 | 38 | from IPython.external.Itpl import ItplNS |
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39 | 39 | |
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40 | 40 | # Global constants |
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41 | 41 | COMPILER_ERROR = 'error' |
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42 | 42 | INCOMPLETE_INPUT = 'incomplete' |
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43 | 43 | COMPLETE_INPUT = 'complete' |
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44 | 44 | |
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45 | 45 | ############################################################################## |
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46 | 46 | # TEMPORARY!!! fake configuration, while we decide whether to use tconfig or |
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47 | 47 | # not |
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48 | 48 | |
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49 | 49 | rc = Bunch() |
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50 | 50 | rc.cache_size = 100 |
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51 | 51 | rc.pprint = True |
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52 | 52 | rc.separate_in = '\n' |
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53 | 53 | rc.separate_out = '\n' |
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54 | 54 | rc.separate_out2 = '' |
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55 | 55 | rc.prompt_in1 = r'In [\#]: ' |
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56 | 56 | rc.prompt_in2 = r' .\\D.: ' |
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57 | 57 | rc.prompt_out = '' |
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58 | 58 | rc.prompts_pad_left = False |
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59 | 59 | |
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60 | 60 | ############################################################################## |
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61 | 61 | |
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62 | 62 | # Top-level utilities |
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63 | 63 | def default_display_formatters(): |
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64 | 64 | """ Return a list of default display formatters. |
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65 | 65 | """ |
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66 | 66 | |
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67 | 67 | from display_formatter import PPrintDisplayFormatter, ReprDisplayFormatter |
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68 | 68 | return [PPrintDisplayFormatter(), ReprDisplayFormatter()] |
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69 | 69 | |
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70 | 70 | def default_traceback_formatters(): |
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71 | 71 | """ Return a list of default traceback formatters. |
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72 | 72 | """ |
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73 | 73 | |
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74 | 74 | from traceback_formatter import PlainTracebackFormatter |
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75 | 75 | return [PlainTracebackFormatter()] |
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76 | 76 | |
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77 | 77 | # Top-level classes |
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78 | 78 | class NotDefined(object): pass |
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79 | 79 | |
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80 | 80 | class Interpreter(object): |
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81 | 81 | """ An interpreter object. |
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82 | 82 | |
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83 | 83 | fixme: needs to negotiate available formatters with frontends. |
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84 | 84 | |
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85 | 85 | Important: the interpeter should be built so that it exposes a method |
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86 | 86 | for each attribute/method of its sub-object. This way it can be |
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87 | 87 | replaced by a network adapter. |
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88 | 88 | """ |
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89 | 89 | |
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90 | 90 | def __init__(self, user_ns=None, global_ns=None,translator=None, |
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91 | 91 | magic=None, display_formatters=None, |
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92 | 92 | traceback_formatters=None, output_trap=None, history=None, |
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93 | 93 | message_cache=None, filename='<string>', config=None): |
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94 | 94 | |
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95 | 95 | # The local/global namespaces for code execution |
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96 | 96 | local_ns = user_ns # compatibility name |
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97 | 97 | if local_ns is None: |
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98 | 98 | local_ns = {} |
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99 | 99 | self.user_ns = local_ns |
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100 | 100 | # The local namespace |
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101 | 101 | if global_ns is None: |
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102 | 102 | global_ns = {} |
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103 | 103 | self.user_global_ns = global_ns |
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104 | 104 | |
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105 | 105 | # An object that will translate commands into executable Python. |
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106 | 106 | # The current translator does not work properly so for now we are going |
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107 | 107 | # without! |
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108 | 108 | # if translator is None: |
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109 | 109 | # from IPython.kernel.core.translator import IPythonTranslator |
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110 | 110 | # translator = IPythonTranslator() |
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111 | 111 | self.translator = translator |
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112 | 112 | |
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113 | 113 | # An object that maintains magic commands. |
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114 | 114 | if magic is None: |
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115 | 115 | from IPython.kernel.core.magic import Magic |
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116 | 116 | magic = Magic(self) |
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117 | 117 | self.magic = magic |
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118 | 118 | |
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119 | 119 | # A list of formatters for the displayhook. |
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120 | 120 | if display_formatters is None: |
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121 | 121 | display_formatters = default_display_formatters() |
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122 | 122 | self.display_formatters = display_formatters |
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123 | 123 | |
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124 | 124 | # A list of formatters for tracebacks. |
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125 | 125 | if traceback_formatters is None: |
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126 | 126 | traceback_formatters = default_traceback_formatters() |
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127 | 127 | self.traceback_formatters = traceback_formatters |
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128 | 128 | |
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129 | 129 | # The object trapping stdout/stderr. |
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130 | 130 | if output_trap is None: |
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131 | 131 | from IPython.kernel.core.output_trap import OutputTrap |
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132 | 132 | output_trap = OutputTrap() |
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133 | 133 | self.output_trap = output_trap |
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134 | 134 | |
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135 | 135 | # An object that manages the history. |
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136 | 136 | if history is None: |
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137 | 137 | from IPython.kernel.core.history import InterpreterHistory |
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138 | 138 | history = InterpreterHistory() |
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139 | 139 | self.history = history |
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140 | 140 | self.get_history_item = history.get_history_item |
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141 | 141 | self.get_history_input_cache = history.get_input_cache |
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142 | 142 | self.get_history_input_after = history.get_input_after |
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143 | 143 | |
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144 | 144 | # An object that caches all of the return messages. |
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145 | 145 | if message_cache is None: |
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146 | 146 | from IPython.kernel.core.message_cache import SimpleMessageCache |
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147 | 147 | message_cache = SimpleMessageCache() |
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148 | 148 | self.message_cache = message_cache |
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149 | 149 | |
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150 | 150 | # The "filename" of the code that is executed in this interpreter. |
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151 | 151 | self.filename = filename |
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152 | 152 | |
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153 | 153 | # An object that contains much configuration information. |
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154 | 154 | if config is None: |
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155 | 155 | # fixme: Move this constant elsewhere! |
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156 | 156 | config = Bunch(ESC_MAGIC='%') |
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157 | 157 | self.config = config |
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158 | 158 | |
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159 | 159 | # Hook managers. |
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160 | 160 | # fixme: make the display callbacks configurable. In the meantime, |
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161 | 161 | # enable macros. |
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162 | 162 | self.display_trap = DisplayTrap( |
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163 | 163 | formatters=self.display_formatters, |
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164 | 164 | callbacks=[self._possible_macro], |
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165 | 165 | ) |
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166 | 166 | self.traceback_trap = TracebackTrap( |
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167 | 167 | formatters=self.traceback_formatters) |
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168 | 168 | |
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169 | 169 | # This is used temporarily for reformating exceptions in certain |
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170 | 170 | # cases. It will go away once the ultraTB stuff is ported |
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171 | 171 | # to ipython1 |
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172 | 172 | self.tbHandler = ultraTB.FormattedTB(color_scheme='NoColor', |
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173 | 173 | mode='Context', |
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174 | 174 | tb_offset=2) |
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175 | 175 | |
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176 | 176 | # An object that can compile commands and remember __future__ |
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177 | 177 | # statements. |
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178 | 178 | self.command_compiler = codeop.CommandCompiler() |
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179 | 179 | |
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180 | 180 | # A replacement for the raw_input() and input() builtins. Change these |
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181 | 181 | # attributes later to configure them. |
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182 | 182 | self.raw_input_builtin = raw_input |
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183 | 183 | self.input_builtin = input |
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184 | 184 | |
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185 | 185 | # The number of the current cell. |
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186 | 186 | self.current_cell_number = 1 |
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187 | 187 | |
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188 | 188 | # Initialize cache, set in/out prompts and printing system |
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189 | 189 | self.outputcache = CachedOutput(self, |
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190 | 190 | rc.cache_size, |
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191 | 191 | rc.pprint, |
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192 | 192 | input_sep = rc.separate_in, |
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193 | 193 | output_sep = rc.separate_out, |
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194 | 194 | output_sep2 = rc.separate_out2, |
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195 | 195 | ps1 = rc.prompt_in1, |
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196 | 196 | ps2 = rc.prompt_in2, |
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197 | 197 | ps_out = rc.prompt_out, |
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198 | 198 | pad_left = rc.prompts_pad_left) |
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199 | 199 | |
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200 | 200 | # Need to decide later if this is the right approach, but clients |
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201 | 201 | # commonly use sys.ps1/2, so it may be best to just set them here |
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202 | 202 | sys.ps1 = self.outputcache.prompt1.p_str |
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203 | 203 | sys.ps2 = self.outputcache.prompt2.p_str |
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204 | 204 | |
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205 | 205 | # This is the message dictionary assigned temporarily when running the |
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206 | 206 | # code. |
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207 | 207 | self.message = None |
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208 | 208 | |
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209 | 209 | self.setup_namespace() |
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210 | 210 | |
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211 | 211 | |
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212 | 212 | #### Public 'Interpreter' interface ######################################## |
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213 | 213 | |
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214 | 214 | def formatTraceback(self, et, ev, tb, message=''): |
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215 | 215 | """Put a formatted version of the traceback into value and reraise. |
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216 | 216 | |
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217 | 217 | When exceptions have to be sent over the network, the traceback |
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218 | 218 | needs to be put into the value of the exception in a nicely |
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219 | 219 | formatted way. The method takes the type, value and tb of an |
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220 | 220 | exception and puts a string representation of the tb into the |
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221 | 221 | value of the exception and reraises it. |
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222 | 222 | |
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223 | 223 | Currently this method uses the ultraTb formatter from IPython trunk. |
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224 | 224 | Eventually it should simply use the traceback formatters in core |
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225 | 225 | that are loaded into self.tracback_trap.formatters. |
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226 | 226 | """ |
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227 | 227 | tbinfo = self.tbHandler.text(et,ev,tb) |
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228 | 228 | ev._ipython_traceback_text = tbinfo |
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229 | 229 | return et, ev, tb |
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230 | 230 | |
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231 | 231 | def execute(self, commands, raiseException=True): |
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232 | 232 | """ Execute some IPython commands. |
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233 | 233 | |
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234 | 234 | 1. Translate them into Python. |
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235 | 235 | 2. Run them. |
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236 | 236 | 3. Trap stdout/stderr. |
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237 | 237 | 4. Trap sys.displayhook(). |
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238 | 238 | 5. Trap exceptions. |
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239 | 239 | 6. Return a message object. |
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240 | 240 | |
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241 | 241 | Parameters |
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242 | 242 | ---------- |
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243 | 243 | commands : str |
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244 | 244 | The raw commands that the user typed into the prompt. |
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245 | 245 | |
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246 | 246 | Returns |
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247 | 247 | ------- |
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248 | 248 | message : dict |
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249 | 249 | The dictionary of responses. See the README.txt in this directory |
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250 | 250 | for an explanation of the format. |
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251 | 251 | """ |
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252 | 252 | |
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253 | 253 | # Create a message dictionary with all of the information we will be |
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254 | 254 | # returning to the frontend and other listeners. |
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255 | 255 | message = self.setup_message() |
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256 | 256 | |
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257 | 257 | # Massage the input and store the raw and translated commands into |
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258 | 258 | # a dict. |
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259 | 259 | user_input = dict(raw=commands) |
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260 | 260 | if self.translator is not None: |
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261 | 261 | python = self.translator(commands, message) |
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262 | 262 | if python is None: |
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263 | 263 | # Something went wrong with the translation. The translator |
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264 | 264 | # should have added an appropriate entry to the message object. |
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265 | 265 | return message |
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266 | 266 | else: |
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267 | 267 | python = commands |
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268 | 268 | user_input['translated'] = python |
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269 | 269 | message['input'] = user_input |
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270 | 270 | |
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271 | 271 | # Set the message object so that any magics executed in the code have |
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272 | 272 | # access. |
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273 | 273 | self.message = message |
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274 | 274 | |
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275 | 275 | # Set all of the output/exception traps. |
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276 | 276 | self.set_traps() |
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277 | 277 | |
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278 | 278 | # Actually execute the Python code. |
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279 | 279 | status = self.execute_python(python) |
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280 | 280 | |
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281 | 281 | # Unset all of the traps. |
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282 | 282 | self.unset_traps() |
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283 | 283 | |
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284 | 284 | # Unset the message object. |
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285 | 285 | self.message = None |
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286 | 286 | |
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287 | 287 | # Update the history variables in the namespace. |
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288 | 288 | # E.g. In, Out, _, __, ___ |
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289 | 289 | if self.history is not None: |
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290 | 290 | self.history.update_history(self, python) |
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291 | 291 | |
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292 | 292 | # Let all of the traps contribute to the message and then clear their |
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293 | 293 | # stored information. |
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294 | 294 | self.output_trap.add_to_message(message) |
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295 | 295 | self.output_trap.clear() |
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296 | 296 | self.display_trap.add_to_message(message) |
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297 | 297 | self.display_trap.clear() |
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298 | 298 | self.traceback_trap.add_to_message(message) |
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299 | 299 | # Pull out the type, value and tb of the current exception |
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300 | 300 | # before clearing it. |
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301 | 301 | einfo = self.traceback_trap.args |
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302 | 302 | self.traceback_trap.clear() |
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303 | 303 | |
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304 | 304 | # Cache the message. |
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305 | 305 | self.message_cache.add_message(self.current_cell_number, message) |
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306 | 306 | |
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307 | 307 | # Bump the number. |
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308 | 308 | self.current_cell_number += 1 |
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309 | 309 | |
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310 | 310 | # This conditional lets the execute method either raise any |
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311 | 311 | # exception that has occured in user code OR return the message |
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312 | 312 | # dict containing the traceback and other useful info. |
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313 | 313 | if raiseException and einfo: |
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314 | 314 | raise einfo[0],einfo[1],einfo[2] |
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315 | 315 | else: |
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316 | 316 | return message |
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317 | 317 | |
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318 | 318 | def generate_prompt(self, is_continuation): |
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319 | 319 | """Calculate and return a string with the prompt to display. |
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320 | 320 | |
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321 | 321 | :Parameters: |
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322 | 322 | is_continuation : bool |
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323 | 323 | Whether the input line is continuing multiline input or not, so |
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324 | 324 | that a proper continuation prompt can be computed.""" |
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325 | 325 | |
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326 | 326 | if is_continuation: |
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327 | 327 | return str(self.outputcache.prompt2) |
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328 | 328 | else: |
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329 | 329 | return str(self.outputcache.prompt1) |
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330 | 330 | |
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331 | 331 | def execute_python(self, python): |
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332 | 332 | """ Actually run the Python code in the namespace. |
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333 | 333 | |
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334 | 334 | :Parameters: |
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335 | 335 | |
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336 | 336 | python : str |
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337 | 337 | Pure, exec'able Python code. Special IPython commands should have |
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338 | 338 | already been translated into pure Python. |
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339 | 339 | """ |
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340 | 340 | |
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341 | 341 | # We use a CommandCompiler instance to compile the code so as to keep |
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342 | 342 | # track of __future__ imports. |
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343 | 343 | try: |
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344 | 344 | commands = self.split_commands(python) |
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345 | 345 | except (SyntaxError, IndentationError), e: |
|
346 | 346 | # Save the exc_info so compilation related exceptions can be |
|
347 | 347 | # reraised |
|
348 | 348 | self.traceback_trap.args = sys.exc_info() |
|
349 | 349 | self.pack_exception(self.message,e) |
|
350 | 350 | return None |
|
351 | 351 | |
|
352 | 352 | for cmd in commands: |
|
353 | 353 | try: |
|
354 | 354 | code = self.command_compiler(cmd, self.filename, 'single') |
|
355 | 355 | except (SyntaxError, OverflowError, ValueError), e: |
|
356 | 356 | self.traceback_trap.args = sys.exc_info() |
|
357 | 357 | self.pack_exception(self.message,e) |
|
358 | 358 | # No point in continuing if one block raised |
|
359 | 359 | return None |
|
360 | 360 | else: |
|
361 | 361 | self.execute_block(code) |
|
362 | 362 | |
|
363 | 363 | def execute_block(self,code): |
|
364 | 364 | """Execute a single block of code in the user namespace. |
|
365 | 365 | |
|
366 | 366 | Return value: a flag indicating whether the code to be run completed |
|
367 | 367 | successfully: |
|
368 | 368 | |
|
369 | 369 | - 0: successful execution. |
|
370 | 370 | - 1: an error occurred. |
|
371 | 371 | """ |
|
372 | 372 | |
|
373 | 373 | outflag = 1 # start by assuming error, success will reset it |
|
374 | 374 | try: |
|
375 | 375 | exec code in self.user_ns |
|
376 | 376 | outflag = 0 |
|
377 | 377 | except SystemExit: |
|
378 | 378 | self.resetbuffer() |
|
379 | 379 | self.traceback_trap.args = sys.exc_info() |
|
380 | 380 | except: |
|
381 | 381 | self.traceback_trap.args = sys.exc_info() |
|
382 | 382 | |
|
383 | 383 | return outflag |
|
384 | 384 | |
|
385 | 385 | def execute_macro(self, macro): |
|
386 | 386 | """ Execute the value of a macro. |
|
387 | 387 | |
|
388 | 388 | Parameters |
|
389 | 389 | ---------- |
|
390 | 390 | macro : Macro |
|
391 | 391 | """ |
|
392 | 392 | |
|
393 | 393 | python = macro.value |
|
394 | 394 | if self.translator is not None: |
|
395 | 395 | python = self.translator(python) |
|
396 | 396 | self.execute_python(python) |
|
397 | 397 | |
|
398 | 398 | def getCommand(self, i=None): |
|
399 | 399 | """Gets the ith message in the message_cache. |
|
400 | 400 | |
|
401 | 401 | This is implemented here for compatibility with the old ipython1 shell |
|
402 | 402 | I am not sure we need this though. I even seem to remember that we |
|
403 | 403 | were going to get rid of it. |
|
404 | 404 | """ |
|
405 | 405 | return self.message_cache.get_message(i) |
|
406 | 406 | |
|
407 | 407 | def reset(self): |
|
408 | 408 | """Reset the interpreter. |
|
409 | 409 | |
|
410 | 410 | Currently this only resets the users variables in the namespace. |
|
411 | 411 | In the future we might want to also reset the other stateful |
|
412 | 412 | things like that the Interpreter has, like In, Out, etc. |
|
413 | 413 | """ |
|
414 | 414 | self.user_ns.clear() |
|
415 | 415 | self.setup_namespace() |
|
416 | 416 | |
|
417 | 417 | def complete(self,line,text=None, pos=None): |
|
418 | 418 | """Complete the given text. |
|
419 | 419 | |
|
420 | 420 | :Parameters: |
|
421 | 421 | |
|
422 | 422 | text : str |
|
423 | 423 | Text fragment to be completed on. Typically this is |
|
424 | 424 | """ |
|
425 | 425 | # fixme: implement |
|
426 | 426 | raise NotImplementedError |
|
427 | 427 | |
|
428 | 428 | def push(self, ns): |
|
429 | 429 | """ Put value into the namespace with name key. |
|
430 | 430 | |
|
431 | 431 | Parameters |
|
432 | 432 | ---------- |
|
433 | 433 | **kwds |
|
434 | 434 | """ |
|
435 | 435 | |
|
436 | 436 | self.user_ns.update(ns) |
|
437 | 437 | |
|
438 | 438 | def push_function(self, ns): |
|
439 | 439 | # First set the func_globals for all functions to self.user_ns |
|
440 | 440 | new_kwds = {} |
|
441 | 441 | for k, v in ns.iteritems(): |
|
442 | 442 | if not isinstance(v, FunctionType): |
|
443 | 443 | raise TypeError("function object expected") |
|
444 | 444 | new_kwds[k] = FunctionType(v.func_code, self.user_ns) |
|
445 | 445 | self.user_ns.update(new_kwds) |
|
446 | 446 | |
|
447 | 447 | def pack_exception(self,message,exc): |
|
448 | 448 | message['exception'] = exc.__class__ |
|
449 | 449 | message['exception_value'] = \ |
|
450 | 450 | traceback.format_exception_only(exc.__class__, exc) |
|
451 | 451 | |
|
452 | 452 | def feed_block(self, source, filename='<input>', symbol='single'): |
|
453 | 453 | """Compile some source in the interpreter. |
|
454 | 454 | |
|
455 | 455 | One several things can happen: |
|
456 | 456 | |
|
457 | 457 | 1) The input is incorrect; compile_command() raised an |
|
458 | 458 | exception (SyntaxError or OverflowError). |
|
459 | 459 | |
|
460 | 460 | 2) The input is incomplete, and more input is required; |
|
461 | 461 | compile_command() returned None. Nothing happens. |
|
462 | 462 | |
|
463 | 463 | 3) The input is complete; compile_command() returned a code |
|
464 | 464 | object. The code is executed by calling self.runcode() (which |
|
465 | 465 | also handles run-time exceptions, except for SystemExit). |
|
466 | 466 | |
|
467 | 467 | The return value is: |
|
468 | 468 | |
|
469 | 469 | - True in case 2 |
|
470 | 470 | |
|
471 | 471 | - False in the other cases, unless an exception is raised, where |
|
472 | 472 | None is returned instead. This can be used by external callers to |
|
473 | 473 | know whether to continue feeding input or not. |
|
474 | 474 | |
|
475 | 475 | The return value can be used to decide whether to use sys.ps1 or |
|
476 | 476 | sys.ps2 to prompt the next line.""" |
|
477 | 477 | |
|
478 | 478 | self.message = self.setup_message() |
|
479 | 479 | |
|
480 | 480 | try: |
|
481 | 481 | code = self.command_compiler(source,filename,symbol) |
|
482 | 482 | except (OverflowError, SyntaxError, IndentationError, ValueError ), e: |
|
483 | 483 | # Case 1 |
|
484 | 484 | self.traceback_trap.args = sys.exc_info() |
|
485 | 485 | self.pack_exception(self.message,e) |
|
486 | 486 | return COMPILER_ERROR,False |
|
487 | 487 | |
|
488 | 488 | if code is None: |
|
489 | 489 | # Case 2: incomplete input. This means that the input can span |
|
490 | 490 | # multiple lines. But we still need to decide when to actually |
|
491 | 491 | # stop taking user input. Later we'll add auto-indentation support |
|
492 | 492 | # somehow. In the meantime, we'll just stop if there are two lines |
|
493 | 493 | # of pure whitespace at the end. |
|
494 | 494 | last_two = source.rsplit('\n',2)[-2:] |
|
495 | 495 | print 'last two:',last_two # dbg |
|
496 | 496 | if len(last_two)==2 and all(s.isspace() for s in last_two): |
|
497 | 497 | return COMPLETE_INPUT,False |
|
498 | 498 | else: |
|
499 | 499 | return INCOMPLETE_INPUT, True |
|
500 | 500 | else: |
|
501 | 501 | # Case 3 |
|
502 | 502 | return COMPLETE_INPUT, False |
|
503 | 503 | |
|
504 | 504 | def pull(self, keys): |
|
505 | 505 | """ Get an item out of the namespace by key. |
|
506 | 506 | |
|
507 | 507 | Parameters |
|
508 | 508 | ---------- |
|
509 | 509 | key : str |
|
510 | 510 | |
|
511 | 511 | Returns |
|
512 | 512 | ------- |
|
513 | 513 | value : object |
|
514 | 514 | |
|
515 | 515 | Raises |
|
516 | 516 | ------ |
|
517 | 517 | TypeError if the key is not a string. |
|
518 | 518 | NameError if the object doesn't exist. |
|
519 | 519 | """ |
|
520 | 520 | |
|
521 | 521 | if isinstance(keys, str): |
|
522 | 522 | result = self.user_ns.get(keys, NotDefined()) |
|
523 | 523 | if isinstance(result, NotDefined): |
|
524 | 524 | raise NameError('name %s is not defined' % keys) |
|
525 | 525 | elif isinstance(keys, (list, tuple)): |
|
526 | 526 | result = [] |
|
527 | 527 | for key in keys: |
|
528 | 528 | if not isinstance(key, str): |
|
529 | 529 | raise TypeError("objects must be keyed by strings.") |
|
530 | 530 | else: |
|
531 | 531 | r = self.user_ns.get(key, NotDefined()) |
|
532 | 532 | if isinstance(r, NotDefined): |
|
533 | 533 | raise NameError('name %s is not defined' % key) |
|
534 | 534 | else: |
|
535 | 535 | result.append(r) |
|
536 | 536 | if len(keys)==1: |
|
537 | 537 | result = result[0] |
|
538 | 538 | else: |
|
539 | 539 | raise TypeError("keys must be a strong or a list/tuple of strings") |
|
540 | 540 | return result |
|
541 | 541 | |
|
542 | 542 | def pull_function(self, keys): |
|
543 | 543 | return self.pull(keys) |
|
544 | 544 | |
|
545 | 545 | #### Interactive user API ################################################## |
|
546 | 546 | |
|
547 | 547 | def ipsystem(self, command): |
|
548 | 548 | """ Execute a command in a system shell while expanding variables in the |
|
549 | 549 | current namespace. |
|
550 | 550 | |
|
551 | 551 | Parameters |
|
552 | 552 | ---------- |
|
553 | 553 | command : str |
|
554 | 554 | """ |
|
555 | 555 | |
|
556 | 556 | # Expand $variables. |
|
557 | 557 | command = self.var_expand(command) |
|
558 | 558 | |
|
559 | 559 | system_shell(command, |
|
560 | 560 | header='IPython system call: ', |
|
561 | 561 | verbose=self.rc.system_verbose, |
|
562 | 562 | ) |
|
563 | 563 | |
|
564 | 564 | def ipmagic(self, arg_string): |
|
565 | 565 | """ Call a magic function by name. |
|
566 | 566 | |
|
567 | 567 | ipmagic('name -opt foo bar') is equivalent to typing at the ipython |
|
568 | 568 | prompt: |
|
569 | 569 | |
|
570 | 570 | In[1]: %name -opt foo bar |
|
571 | 571 | |
|
572 | 572 | To call a magic without arguments, simply use ipmagic('name'). |
|
573 | 573 | |
|
574 | 574 | This provides a proper Python function to call IPython's magics in any |
|
575 | 575 | valid Python code you can type at the interpreter, including loops and |
|
576 | 576 | compound statements. It is added by IPython to the Python builtin |
|
577 | 577 | namespace upon initialization. |
|
578 | 578 | |
|
579 | 579 | Parameters |
|
580 | 580 | ---------- |
|
581 | 581 | arg_string : str |
|
582 | 582 | A string containing the name of the magic function to call and any |
|
583 | 583 | additional arguments to be passed to the magic. |
|
584 | 584 | |
|
585 | 585 | Returns |
|
586 | 586 | ------- |
|
587 | 587 | something : object |
|
588 | 588 | The return value of the actual object. |
|
589 | 589 | """ |
|
590 | 590 | |
|
591 | 591 | # Taken from IPython. |
|
592 | 592 | raise NotImplementedError('Not ported yet') |
|
593 | 593 | |
|
594 | 594 | args = arg_string.split(' ', 1) |
|
595 | 595 | magic_name = args[0] |
|
596 | 596 | magic_name = magic_name.lstrip(self.config.ESC_MAGIC) |
|
597 | 597 | |
|
598 | 598 | try: |
|
599 | 599 | magic_args = args[1] |
|
600 | 600 | except IndexError: |
|
601 | 601 | magic_args = '' |
|
602 | 602 | fn = getattr(self.magic, 'magic_'+magic_name, None) |
|
603 | 603 | if fn is None: |
|
604 | 604 | self.error("Magic function `%s` not found." % magic_name) |
|
605 | 605 | else: |
|
606 | 606 | magic_args = self.var_expand(magic_args) |
|
607 | 607 | return fn(magic_args) |
|
608 | 608 | |
|
609 | 609 | |
|
610 | 610 | #### Private 'Interpreter' interface ####################################### |
|
611 | 611 | |
|
612 | 612 | def setup_message(self): |
|
613 | 613 | """Return a message object. |
|
614 | 614 | |
|
615 | 615 | This method prepares and returns a message dictionary. This dict |
|
616 | 616 | contains the various fields that are used to transfer information about |
|
617 | 617 | execution, results, tracebacks, etc, to clients (either in or out of |
|
618 | 618 | process ones). Because of the need to work with possibly out of |
|
619 | 619 | process clients, this dict MUST contain strictly pickle-safe values. |
|
620 | 620 | """ |
|
621 | 621 | |
|
622 | 622 | return dict(number=self.current_cell_number) |
|
623 | 623 | |
|
624 | 624 | def setup_namespace(self): |
|
625 | 625 | """ Add things to the namespace. |
|
626 | 626 | """ |
|
627 | 627 | |
|
628 | 628 | self.user_ns.setdefault('__name__', '__main__') |
|
629 | 629 | self.user_ns.setdefault('__builtins__', __builtin__) |
|
630 | 630 | self.user_ns['__IP'] = self |
|
631 | 631 | if self.raw_input_builtin is not None: |
|
632 | 632 | self.user_ns['raw_input'] = self.raw_input_builtin |
|
633 | 633 | if self.input_builtin is not None: |
|
634 | 634 | self.user_ns['input'] = self.input_builtin |
|
635 | 635 | |
|
636 | 636 | builtin_additions = dict( |
|
637 | 637 | ipmagic=self.ipmagic, |
|
638 | 638 | ) |
|
639 | 639 | __builtin__.__dict__.update(builtin_additions) |
|
640 | 640 | |
|
641 | 641 | if self.history is not None: |
|
642 | 642 | self.history.setup_namespace(self.user_ns) |
|
643 | 643 | |
|
644 | 644 | def set_traps(self): |
|
645 | 645 | """ Set all of the output, display, and traceback traps. |
|
646 | 646 | """ |
|
647 | 647 | |
|
648 | 648 | self.output_trap.set() |
|
649 | 649 | self.display_trap.set() |
|
650 | 650 | self.traceback_trap.set() |
|
651 | 651 | |
|
652 | 652 | def unset_traps(self): |
|
653 | 653 | """ Unset all of the output, display, and traceback traps. |
|
654 | 654 | """ |
|
655 | 655 | |
|
656 | 656 | self.output_trap.unset() |
|
657 | 657 | self.display_trap.unset() |
|
658 | 658 | self.traceback_trap.unset() |
|
659 | 659 | |
|
660 | 660 | def split_commands(self, python): |
|
661 | 661 | """ Split multiple lines of code into discrete commands that can be |
|
662 | 662 | executed singly. |
|
663 | 663 | |
|
664 | 664 | Parameters |
|
665 | 665 | ---------- |
|
666 | 666 | python : str |
|
667 | 667 | Pure, exec'able Python code. |
|
668 | 668 | |
|
669 | 669 | Returns |
|
670 | 670 | ------- |
|
671 | 671 | commands : list of str |
|
672 | 672 | Separate commands that can be exec'ed independently. |
|
673 | 673 | """ |
|
674 | 674 | |
|
675 | 675 | # compiler.parse treats trailing spaces after a newline as a |
|
676 | 676 | # SyntaxError. This is different than codeop.CommandCompiler, which |
|
677 | 677 | # will compile the trailng spaces just fine. We simply strip any |
|
678 | 678 | # trailing whitespace off. Passing a string with trailing whitespace |
|
679 | 679 | # to exec will fail however. There seems to be some inconsistency in |
|
680 | 680 | # how trailing whitespace is handled, but this seems to work. |
|
681 | 681 | python = python.strip() |
|
682 | ||
|
682 | ||
|
683 | 683 | # The compiler module does not like unicode. We need to convert |
|
684 | 684 | # it encode it: |
|
685 | 685 | if isinstance(python, unicode): |
|
686 | 686 | # Use the utf-8-sig BOM so the compiler detects this a UTF-8 |
|
687 | 687 | # encode string. |
|
688 | 688 | python = '\xef\xbb\xbf' + python.encode('utf-8') |
|
689 | ||
|
689 | ||
|
690 | 690 | # The compiler module will parse the code into an abstract syntax tree. |
|
691 | # This has a bug with str("a\nb"), but not str("""a\nb""")!!! | |
|
691 | 692 | ast = compiler.parse(python) |
|
692 | ||
|
693 | ||
|
693 | 694 | # Uncomment to help debug the ast tree |
|
694 | 695 | # for n in ast.node: |
|
695 | 696 | # print n.lineno,'->',n |
|
696 |
|
|
|
697 | ||
|
697 | 698 | # Each separate command is available by iterating over ast.node. The |
|
698 | 699 | # lineno attribute is the line number (1-indexed) beginning the commands |
|
699 | 700 | # suite. |
|
700 | 701 | # lines ending with ";" yield a Discard Node that doesn't have a lineno |
|
701 | 702 | # attribute. These nodes can and should be discarded. But there are |
|
702 | 703 | # other situations that cause Discard nodes that shouldn't be discarded. |
|
703 | 704 | # We might eventually discover other cases where lineno is None and have |
|
704 | 705 | # to put in a more sophisticated test. |
|
705 | 706 | linenos = [x.lineno-1 for x in ast.node if x.lineno is not None] |
|
706 | ||
|
707 | ||
|
707 | 708 | # When we finally get the slices, we will need to slice all the way to |
|
708 | 709 | # the end even though we don't have a line number for it. Fortunately, |
|
709 | 710 | # None does the job nicely. |
|
710 | 711 | linenos.append(None) |
|
712 | ||
|
713 | # Same problem at the other end: sometimes the ast tree has its | |
|
714 | # first complete statement not starting on line 0. In this case | |
|
715 | # we might miss part of it. This fixes ticket 266993. Thanks Gael! | |
|
716 | linenos[0] = 0 | |
|
717 | ||
|
711 | 718 | lines = python.splitlines() |
|
712 | ||
|
719 | ||
|
713 | 720 | # Create a list of atomic commands. |
|
714 | 721 | cmds = [] |
|
715 | 722 | for i, j in zip(linenos[:-1], linenos[1:]): |
|
716 | 723 | cmd = lines[i:j] |
|
717 | 724 | if cmd: |
|
718 | 725 | cmds.append('\n'.join(cmd)+'\n') |
|
719 | ||
|
726 | ||
|
720 | 727 | return cmds |
|
721 | 728 | |
|
722 | 729 | def error(self, text): |
|
723 | 730 | """ Pass an error message back to the shell. |
|
724 | 731 | |
|
725 | 732 | Preconditions |
|
726 | 733 | ------------- |
|
727 | 734 | This should only be called when self.message is set. In other words, |
|
728 | 735 | when code is being executed. |
|
729 | 736 | |
|
730 | 737 | Parameters |
|
731 | 738 | ---------- |
|
732 | 739 | text : str |
|
733 | 740 | """ |
|
734 | 741 | |
|
735 | 742 | errors = self.message.get('IPYTHON_ERROR', []) |
|
736 | 743 | errors.append(text) |
|
737 | 744 | |
|
738 | 745 | def var_expand(self, template): |
|
739 | 746 | """ Expand $variables in the current namespace using Itpl. |
|
740 | 747 | |
|
741 | 748 | Parameters |
|
742 | 749 | ---------- |
|
743 | 750 | template : str |
|
744 | 751 | """ |
|
745 | 752 | |
|
746 | 753 | return str(ItplNS(template, self.user_ns)) |
|
747 | 754 | |
|
748 | 755 | def _possible_macro(self, obj): |
|
749 | 756 | """ If the object is a macro, execute it. |
|
750 | 757 | """ |
|
751 | 758 | |
|
752 | 759 | if isinstance(obj, Macro): |
|
753 | 760 | self.execute_macro(obj) |
|
754 | 761 |
@@ -1,123 +1,125 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """The IPython Core Notification Center. |
|
4 | 4 | |
|
5 | 5 | See docs/source/development/notification_blueprint.txt for an overview of the |
|
6 | 6 | notification module. |
|
7 | 7 | """ |
|
8 | 8 | |
|
9 | 9 | __docformat__ = "restructuredtext en" |
|
10 | 10 | |
|
11 | 11 | #----------------------------------------------------------------------------- |
|
12 | 12 | # Copyright (C) 2008 The IPython Development Team |
|
13 | 13 | # |
|
14 | 14 | # Distributed under the terms of the BSD License. The full license is in |
|
15 | 15 | # the file COPYING, distributed as part of this software. |
|
16 | 16 | #----------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | # Tell nose to skip the testing of this module | |
|
19 | __test__ = {} | |
|
18 | 20 | |
|
19 | 21 | class NotificationCenter(object): |
|
20 | 22 | """Synchronous notification center |
|
21 | 23 | |
|
22 | 24 | Example |
|
23 | 25 | ------- |
|
24 | 26 | >>> import IPython.kernel.core.notification as notification |
|
25 | 27 | >>> def callback(theType, theSender, args={}): |
|
26 | 28 | ... print theType,theSender,args |
|
27 | 29 | ... |
|
28 | 30 | >>> notification.sharedCenter.add_observer(callback, 'NOTIFICATION_TYPE', None) |
|
29 | 31 | >>> notification.sharedCenter.post_notification('NOTIFICATION_TYPE', object()) # doctest:+ELLIPSIS |
|
30 | 32 | NOTIFICATION_TYPE ... |
|
31 | 33 | |
|
32 | 34 | """ |
|
33 | 35 | def __init__(self): |
|
34 | 36 | super(NotificationCenter, self).__init__() |
|
35 | 37 | self._init_observers() |
|
36 | 38 | |
|
37 | 39 | |
|
38 | 40 | def _init_observers(self): |
|
39 | 41 | """Initialize observer storage""" |
|
40 | 42 | |
|
41 | 43 | self.registered_types = set() #set of types that are observed |
|
42 | 44 | self.registered_senders = set() #set of senders that are observed |
|
43 | 45 | self.observers = {} #map (type,sender) => callback (callable) |
|
44 | 46 | |
|
45 | 47 | |
|
46 | 48 | def post_notification(self, theType, sender, **kwargs): |
|
47 | 49 | """Post notification (type,sender,**kwargs) to all registered |
|
48 | 50 | observers. |
|
49 | 51 | |
|
50 | 52 | Implementation |
|
51 | 53 | -------------- |
|
52 | 54 | * If no registered observers, performance is O(1). |
|
53 | 55 | * Notificaiton order is undefined. |
|
54 | 56 | * Notifications are posted synchronously. |
|
55 | 57 | """ |
|
56 | 58 | |
|
57 | 59 | if(theType==None or sender==None): |
|
58 | 60 | raise Exception("NotificationCenter.post_notification requires \ |
|
59 | 61 | type and sender.") |
|
60 | 62 | |
|
61 | 63 | # If there are no registered observers for the type/sender pair |
|
62 | 64 | if((theType not in self.registered_types and |
|
63 | 65 | None not in self.registered_types) or |
|
64 | 66 | (sender not in self.registered_senders and |
|
65 | 67 | None not in self.registered_senders)): |
|
66 | 68 | return |
|
67 | 69 | |
|
68 | 70 | for o in self._observers_for_notification(theType, sender): |
|
69 | 71 | o(theType, sender, args=kwargs) |
|
70 | 72 | |
|
71 | 73 | |
|
72 | 74 | def _observers_for_notification(self, theType, sender): |
|
73 | 75 | """Find all registered observers that should recieve notification""" |
|
74 | 76 | |
|
75 | 77 | keys = ( |
|
76 | 78 | (theType,sender), |
|
77 | 79 | (theType, None), |
|
78 | 80 | (None, sender), |
|
79 | 81 | (None,None) |
|
80 | 82 | ) |
|
81 | 83 | |
|
82 | 84 | |
|
83 | 85 | obs = set() |
|
84 | 86 | for k in keys: |
|
85 | 87 | obs.update(self.observers.get(k, set())) |
|
86 | 88 | |
|
87 | 89 | return obs |
|
88 | 90 | |
|
89 | 91 | |
|
90 | 92 | def add_observer(self, callback, theType, sender): |
|
91 | 93 | """Add an observer callback to this notification center. |
|
92 | 94 | |
|
93 | 95 | The given callback will be called upon posting of notifications of |
|
94 | 96 | the given type/sender and will receive any additional kwargs passed |
|
95 | 97 | to post_notification. |
|
96 | 98 | |
|
97 | 99 | Parameters |
|
98 | 100 | ---------- |
|
99 | 101 | observerCallback : callable |
|
100 | 102 | Callable. Must take at least two arguments:: |
|
101 | 103 | observerCallback(type, sender, args={}) |
|
102 | 104 | |
|
103 | 105 | theType : hashable |
|
104 | 106 | The notification type. If None, all notifications from sender |
|
105 | 107 | will be posted. |
|
106 | 108 | |
|
107 | 109 | sender : hashable |
|
108 | 110 | The notification sender. If None, all notifications of theType |
|
109 | 111 | will be posted. |
|
110 | 112 | """ |
|
111 | 113 | assert(callback != None) |
|
112 | 114 | self.registered_types.add(theType) |
|
113 | 115 | self.registered_senders.add(sender) |
|
114 | 116 | self.observers.setdefault((theType,sender), set()).add(callback) |
|
115 | 117 | |
|
116 | 118 | def remove_all_observers(self): |
|
117 | 119 | """Removes all observers from this notification center""" |
|
118 | 120 | |
|
119 | 121 | self._init_observers() |
|
120 | 122 | |
|
121 | 123 | |
|
122 | 124 | |
|
123 | 125 | sharedCenter = NotificationCenter() No newline at end of file |
@@ -1,26 +1,62 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """This file contains unittests for the interpreter.py module.""" |
|
4 | 4 | |
|
5 | __docformat__ = "restructuredtext en" | |
|
6 | ||
|
7 | 5 | #----------------------------------------------------------------------------- |
|
8 |
# Copyright (C) 2008 The IPython Development Team |
|
|
9 | # | |
|
10 |
# Distributed under the terms of the BSD License. The full license is |
|
|
11 |
# the file COPYING, distributed as part of this software. |
|
|
6 | # Copyright (C) 2008-2009 The IPython Development Team | |
|
7 | # | |
|
8 | # Distributed under the terms of the BSD License. The full license is | |
|
9 | # in the file COPYING, distributed as part of this software. | |
|
12 | 10 | #----------------------------------------------------------------------------- |
|
13 | ||
|
11 | ||
|
14 | 12 | #----------------------------------------------------------------------------- |
|
15 | # Imports | |
|
13 | # Imports | |
|
16 | 14 | #----------------------------------------------------------------------------- |
|
17 | 15 | |
|
16 | # Tell nose to skip this module | |
|
17 | __test__ = {} | |
|
18 | ||
|
19 | from twisted.trial import unittest | |
|
18 | 20 | from IPython.kernel.core.interpreter import Interpreter |
|
19 | 21 | |
|
20 | def test_unicode(): | |
|
21 | """ Test unicode handling with the interpreter. | |
|
22 | """ | |
|
23 | i = Interpreter() | |
|
24 | i.execute_python(u'print "ù"') | |
|
25 | i.execute_python('print "ù"') | |
|
22 | #----------------------------------------------------------------------------- | |
|
23 | # Tests | |
|
24 | #----------------------------------------------------------------------------- | |
|
25 | ||
|
26 | class TestInterpreter(unittest.TestCase): | |
|
27 | ||
|
28 | def test_unicode(self): | |
|
29 | """ Test unicode handling with the interpreter.""" | |
|
30 | i = Interpreter() | |
|
31 | i.execute_python(u'print "ù"') | |
|
32 | i.execute_python('print "ù"') | |
|
33 | ||
|
34 | def test_ticket266993(self): | |
|
35 | """ Test for ticket 266993.""" | |
|
36 | i = Interpreter() | |
|
37 | i.execute('str("""a\nb""")') | |
|
38 | ||
|
39 | def test_ticket364347(self): | |
|
40 | """Test for ticket 364347.""" | |
|
41 | i = Interpreter() | |
|
42 | i.split_commands('str("a\\nb")') | |
|
43 | ||
|
44 | def test_split_commands(self): | |
|
45 | """ Test that commands are indeed individually split.""" | |
|
46 | i = Interpreter() | |
|
47 | test_atoms = [('(1\n + 1)', ), | |
|
48 | ('1', '1', ), | |
|
49 | ] | |
|
50 | for atoms in test_atoms: | |
|
51 | atoms = [atom.rstrip() + '\n' for atom in atoms] | |
|
52 | self.assertEquals(i.split_commands(''.join(atoms)),atoms) | |
|
53 | ||
|
54 | def test_long_lines(self): | |
|
55 | """ Test for spurious syntax error created by the interpreter.""" | |
|
56 | test_strings = [u'( 1 +\n 1\n )\n\n', | |
|
57 | u'(1 \n + 1\n )\n\n', | |
|
58 | ] | |
|
59 | i = Interpreter() | |
|
60 | for s in test_strings: | |
|
61 | i.execute(s) | |
|
26 | 62 |
@@ -1,171 +1,161 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """This file contains unittests for the notification.py module.""" |
|
4 | 4 | |
|
5 | __docformat__ = "restructuredtext en" | |
|
6 | ||
|
7 | 5 | #----------------------------------------------------------------------------- |
|
8 |
# Copyright (C) 2008 The IPython Development Team |
|
|
9 | # | |
|
10 |
# Distributed under the terms of the BSD License. The full license is |
|
|
11 |
# the file COPYING, distributed as part of this software. |
|
|
6 | # Copyright (C) 2008-2009 The IPython Development Team | |
|
7 | # | |
|
8 | # Distributed under the terms of the BSD License. The full license is | |
|
9 | # in the file COPYING, distributed as part of this software. | |
|
12 | 10 | #----------------------------------------------------------------------------- |
|
13 | ||
|
11 | ||
|
14 | 12 | #----------------------------------------------------------------------------- |
|
15 | # Imports | |
|
13 | # Imports | |
|
16 | 14 | #----------------------------------------------------------------------------- |
|
17 | 15 | |
|
18 | import unittest | |
|
16 | # Tell nose to skip this module | |
|
17 | __test__ = {} | |
|
18 | ||
|
19 | from twisted.trial import unittest | |
|
19 | 20 | import IPython.kernel.core.notification as notification |
|
20 | from nose.tools import timed | |
|
21 | 21 | |
|
22 | # | |
|
23 |
# Support |
|
|
24 | # | |
|
22 | #----------------------------------------------------------------------------- | |
|
23 | # Support Classes | |
|
24 | #----------------------------------------------------------------------------- | |
|
25 | 25 | |
|
26 | 26 | class Observer(object): |
|
27 | 27 | """docstring for Observer""" |
|
28 | 28 | def __init__(self, expectedType, expectedSender, |
|
29 | 29 | center=notification.sharedCenter, **kwargs): |
|
30 | 30 | super(Observer, self).__init__() |
|
31 | 31 | self.expectedType = expectedType |
|
32 | 32 | self.expectedSender = expectedSender |
|
33 | 33 | self.expectedKwArgs = kwargs |
|
34 | 34 | self.recieved = False |
|
35 | 35 | center.add_observer(self.callback, |
|
36 | 36 | self.expectedType, |
|
37 | 37 | self.expectedSender) |
|
38 | 38 | |
|
39 | ||
|
40 | 39 | def callback(self, theType, sender, args={}): |
|
41 | 40 | """callback""" |
|
42 | 41 | |
|
43 | 42 | assert(theType == self.expectedType or |
|
44 | 43 | self.expectedType == None) |
|
45 | 44 | assert(sender == self.expectedSender or |
|
46 | 45 | self.expectedSender == None) |
|
47 | 46 | assert(args == self.expectedKwArgs) |
|
48 | 47 | self.recieved = True |
|
49 | 48 | |
|
50 | ||
|
51 | 49 | def verify(self): |
|
52 | 50 | """verify""" |
|
53 | 51 | |
|
54 | 52 | assert(self.recieved) |
|
55 | 53 | |
|
56 | 54 | def reset(self): |
|
57 | 55 | """reset""" |
|
58 | 56 | |
|
59 | 57 | self.recieved = False |
|
60 | ||
|
61 | 58 | |
|
62 | 59 | |
|
63 | 60 | class Notifier(object): |
|
64 | 61 | """docstring for Notifier""" |
|
65 | 62 | def __init__(self, theType, **kwargs): |
|
66 | 63 | super(Notifier, self).__init__() |
|
67 | 64 | self.theType = theType |
|
68 | 65 | self.kwargs = kwargs |
|
69 | 66 | |
|
70 | 67 | def post(self, center=notification.sharedCenter): |
|
71 | 68 | """fire""" |
|
72 | 69 | |
|
73 | 70 | center.post_notification(self.theType, self, |
|
74 | 71 | **self.kwargs) |
|
75 | ||
|
76 | 72 | |
|
77 | # | |
|
78 |
# Test |
|
|
79 | # | |
|
73 | #----------------------------------------------------------------------------- | |
|
74 | # Tests | |
|
75 | #----------------------------------------------------------------------------- | |
|
80 | 76 | |
|
81 | 77 | class NotificationTests(unittest.TestCase): |
|
82 | 78 | """docstring for NotificationTests""" |
|
83 | 79 | |
|
84 | 80 | def tearDown(self): |
|
85 | 81 | notification.sharedCenter.remove_all_observers() |
|
86 | 82 | |
|
87 | 83 | def test_notification_delivered(self): |
|
88 | 84 | """Test that notifications are delivered""" |
|
89 | 85 | expectedType = 'EXPECTED_TYPE' |
|
90 | 86 | sender = Notifier(expectedType) |
|
91 | 87 | observer = Observer(expectedType, sender) |
|
92 | 88 | |
|
93 | 89 | sender.post() |
|
94 | 90 | |
|
95 | 91 | observer.verify() |
|
96 | 92 | |
|
97 | ||
|
98 | 93 | def test_type_specificity(self): |
|
99 | 94 | """Test that observers are registered by type""" |
|
100 | 95 | |
|
101 | 96 | expectedType = 1 |
|
102 | 97 | unexpectedType = "UNEXPECTED_TYPE" |
|
103 | 98 | sender = Notifier(expectedType) |
|
104 | 99 | unexpectedSender = Notifier(unexpectedType) |
|
105 | 100 | observer = Observer(expectedType, sender) |
|
106 | 101 | |
|
107 | 102 | sender.post() |
|
108 | 103 | unexpectedSender.post() |
|
109 | 104 | |
|
110 | 105 | observer.verify() |
|
111 | 106 | |
|
112 | ||
|
113 | 107 | def test_sender_specificity(self): |
|
114 | 108 | """Test that observers are registered by sender""" |
|
115 | 109 | |
|
116 | 110 | expectedType = "EXPECTED_TYPE" |
|
117 | 111 | sender1 = Notifier(expectedType) |
|
118 | 112 | sender2 = Notifier(expectedType) |
|
119 | 113 | observer = Observer(expectedType, sender1) |
|
120 | 114 | |
|
121 | 115 | sender1.post() |
|
122 | 116 | sender2.post() |
|
123 | 117 | |
|
124 | 118 | observer.verify() |
|
125 | 119 | |
|
126 | ||
|
127 | 120 | def test_remove_all_observers(self): |
|
128 | 121 | """White-box test for remove_all_observers""" |
|
129 | 122 | |
|
130 | 123 | for i in xrange(10): |
|
131 | 124 | Observer('TYPE', None, center=notification.sharedCenter) |
|
132 | 125 | |
|
133 | 126 | self.assert_(len(notification.sharedCenter.observers[('TYPE',None)]) >= 10, |
|
134 | 127 | "observers registered") |
|
135 | 128 | |
|
136 | 129 | notification.sharedCenter.remove_all_observers() |
|
137 | 130 | |
|
138 | 131 | self.assert_(len(notification.sharedCenter.observers) == 0, "observers removed") |
|
139 | ||
|
140 | ||
|
132 | ||
|
141 | 133 | def test_any_sender(self): |
|
142 | 134 | """test_any_sender""" |
|
143 | 135 | |
|
144 | 136 | expectedType = "EXPECTED_TYPE" |
|
145 | 137 | sender1 = Notifier(expectedType) |
|
146 | 138 | sender2 = Notifier(expectedType) |
|
147 | 139 | observer = Observer(expectedType, None) |
|
148 | 140 | |
|
149 | 141 | |
|
150 | 142 | sender1.post() |
|
151 | 143 | observer.verify() |
|
152 | 144 | |
|
153 | 145 | observer.reset() |
|
154 | 146 | sender2.post() |
|
155 | 147 | observer.verify() |
|
156 | ||
|
157 | ||
|
158 | @timed(.01) | |
|
148 | ||
|
159 | 149 | def test_post_performance(self): |
|
160 | 150 | """Test that post_notification, even with many registered irrelevant |
|
161 | 151 | observers is fast""" |
|
162 | 152 | |
|
163 | 153 | for i in xrange(10): |
|
164 | 154 | Observer("UNRELATED_TYPE", None) |
|
165 | 155 | |
|
166 | 156 | o = Observer('EXPECTED_TYPE', None) |
|
167 | 157 | |
|
168 | 158 | notification.sharedCenter.post_notification('EXPECTED_TYPE', self) |
|
169 | 159 | |
|
170 | 160 | o.verify() |
|
171 | ||
|
161 |
@@ -1,70 +1,78 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | """ |
|
3 | 3 | Test the output capture at the OS level, using file descriptors. |
|
4 | 4 | """ |
|
5 | ||
|
6 | __docformat__ = "restructuredtext en" | |
|
7 | ||
|
8 | #------------------------------------------------------------------------------- | |
|
9 | # Copyright (C) 2008 The IPython Development Team | |
|
5 | #----------------------------------------------------------------------------- | |
|
6 | # Copyright (C) 2008-2009 The IPython Development Team | |
|
10 | 7 | # |
|
11 | 8 | # Distributed under the terms of the BSD License. The full license is |
|
12 | 9 | # in the file COPYING, distributed as part of this software. |
|
13 |
#----------------------------------------------------------------------------- |
|
|
10 | #----------------------------------------------------------------------------- | |
|
14 | 11 | |
|
12 | #----------------------------------------------------------------------------- | |
|
13 | # Imports | |
|
14 | #----------------------------------------------------------------------------- | |
|
15 | ||
|
16 | # Tell nose to skip this module | |
|
17 | __test__ = {} | |
|
15 | 18 | |
|
16 | # Stdlib imports | |
|
17 | import os | |
|
18 | 19 | from cStringIO import StringIO |
|
20 | import os | |
|
21 | ||
|
22 | from twisted.trial import unittest | |
|
19 | 23 | |
|
20 | # Our own imports | |
|
21 | from IPython.testing import decorators as dec | |
|
24 | from IPython.testing import decorators_trial as dec | |
|
22 | 25 | |
|
23 | 26 | #----------------------------------------------------------------------------- |
|
24 |
# Test |
|
|
27 | # Tests | |
|
28 | #----------------------------------------------------------------------------- | |
|
25 | 29 | |
|
26 | @dec.skip_win32 | |
|
27 | def test_redirector(): | |
|
28 | """ Checks that the redirector can be used to do synchronous capture. | |
|
29 | """ | |
|
30 | from IPython.kernel.core.fd_redirector import FDRedirector | |
|
31 | r = FDRedirector() | |
|
32 | out = StringIO() | |
|
33 | try: | |
|
34 | r.start() | |
|
35 | for i in range(10): | |
|
36 | os.system('echo %ic' % i) | |
|
37 | print >>out, r.getvalue(), | |
|
38 | print >>out, i | |
|
39 | except: | |
|
40 | r.stop() | |
|
41 | raise | |
|
42 | r.stop() | |
|
43 | result1 = out.getvalue() | |
|
44 | result2 = "".join("%ic\n%i\n" %(i, i) for i in range(10)) | |
|
45 | assert result1 == result2 | |
|
46 | 30 | |
|
31 | class TestRedirector(unittest.TestCase): | |
|
47 | 32 | |
|
48 | @dec.skip_win32 | |
|
49 |
def test_redirector |
|
|
50 | """ This test check not only that the redirector_output_trap does | |
|
33 | @dec.skip_win32 | |
|
34 | def test_redirector(self): | |
|
35 | """Checks that the redirector can be used to do synchronous capture. | |
|
36 | """ | |
|
37 | from IPython.kernel.core.fd_redirector import FDRedirector | |
|
38 | r = FDRedirector() | |
|
39 | out = StringIO() | |
|
40 | try: | |
|
41 | r.start() | |
|
42 | for i in range(10): | |
|
43 | os.system('echo %ic' % i) | |
|
44 | print >>out, r.getvalue(), | |
|
45 | print >>out, i | |
|
46 | except: | |
|
47 | r.stop() | |
|
48 | raise | |
|
49 | r.stop() | |
|
50 | result1 = out.getvalue() | |
|
51 | result2 = "".join("%ic\n%i\n" %(i, i) for i in range(10)) | |
|
52 | self.assertEquals(result1, result2) | |
|
53 | ||
|
54 | @dec.skip_win32 | |
|
55 | def test_redirector_output_trap(self): | |
|
56 | """Check the greedy trapping behavior of the traps. | |
|
57 | ||
|
58 | This test check not only that the redirector_output_trap does | |
|
51 | 59 | trap the output, but also that it does it in a gready way, that |
|
52 | 60 | is by calling the callback ASAP. |
|
53 | """ | |
|
54 | from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap | |
|
55 | out = StringIO() | |
|
56 | trap = RedirectorOutputTrap(out.write, out.write) | |
|
57 | try: | |
|
58 | trap.set() | |
|
59 | for i in range(10): | |
|
60 | os.system('echo %ic' % i) | |
|
61 | print "%ip" % i | |
|
62 | print >>out, i | |
|
63 | except: | |
|
61 | """ | |
|
62 | from IPython.kernel.core.redirector_output_trap import RedirectorOutputTrap | |
|
63 | out = StringIO() | |
|
64 | trap = RedirectorOutputTrap(out.write, out.write) | |
|
65 | try: | |
|
66 | trap.set() | |
|
67 | for i in range(10): | |
|
68 | os.system('echo %ic' % i) | |
|
69 | print "%ip" % i | |
|
70 | print >>out, i | |
|
71 | except: | |
|
72 | trap.unset() | |
|
73 | raise | |
|
64 | 74 | trap.unset() |
|
65 | raise | |
|
66 | trap.unset() | |
|
67 | result1 = out.getvalue() | |
|
68 | result2 = "".join("%ic\n%ip\n%i\n" %(i, i, i) for i in range(10)) | |
|
69 | assert result1 == result2 | |
|
70 | ||
|
75 | result1 = out.getvalue() | |
|
76 | result2 = "".join("%ic\n%ip\n%i\n" %(i, i, i) for i in range(10)) | |
|
77 | self.assertEquals(result1, result2) | |
|
78 |
@@ -1,1056 +1,1066 b'' | |||
|
1 | 1 | # -*- coding: utf-8 -*- |
|
2 | 2 | """ |
|
3 | 3 | ultraTB.py -- Spice up your tracebacks! |
|
4 | 4 | |
|
5 | 5 | * ColorTB |
|
6 | 6 | I've always found it a bit hard to visually parse tracebacks in Python. The |
|
7 | 7 | ColorTB class is a solution to that problem. It colors the different parts of a |
|
8 | 8 | traceback in a manner similar to what you would expect from a syntax-highlighting |
|
9 | 9 | text editor. |
|
10 | 10 | |
|
11 | 11 | Installation instructions for ColorTB: |
|
12 | 12 | import sys,ultraTB |
|
13 | 13 | sys.excepthook = ultraTB.ColorTB() |
|
14 | 14 | |
|
15 | 15 | * VerboseTB |
|
16 | 16 | I've also included a port of Ka-Ping Yee's "cgitb.py" that produces all kinds |
|
17 | 17 | of useful info when a traceback occurs. Ping originally had it spit out HTML |
|
18 | 18 | and intended it for CGI programmers, but why should they have all the fun? I |
|
19 | 19 | altered it to spit out colored text to the terminal. It's a bit overwhelming, |
|
20 | 20 | but kind of neat, and maybe useful for long-running programs that you believe |
|
21 | 21 | are bug-free. If a crash *does* occur in that type of program you want details. |
|
22 | 22 | Give it a shot--you'll love it or you'll hate it. |
|
23 | 23 | |
|
24 | 24 | Note: |
|
25 | 25 | |
|
26 | 26 | The Verbose mode prints the variables currently visible where the exception |
|
27 | 27 | happened (shortening their strings if too long). This can potentially be |
|
28 | 28 | very slow, if you happen to have a huge data structure whose string |
|
29 | 29 | representation is complex to compute. Your computer may appear to freeze for |
|
30 | 30 | a while with cpu usage at 100%. If this occurs, you can cancel the traceback |
|
31 | 31 | with Ctrl-C (maybe hitting it more than once). |
|
32 | 32 | |
|
33 | 33 | If you encounter this kind of situation often, you may want to use the |
|
34 | 34 | Verbose_novars mode instead of the regular Verbose, which avoids formatting |
|
35 | 35 | variables (but otherwise includes the information and context given by |
|
36 | 36 | Verbose). |
|
37 | 37 | |
|
38 | 38 | |
|
39 | 39 | Installation instructions for ColorTB: |
|
40 | 40 | import sys,ultraTB |
|
41 | 41 | sys.excepthook = ultraTB.VerboseTB() |
|
42 | 42 | |
|
43 | 43 | Note: Much of the code in this module was lifted verbatim from the standard |
|
44 | 44 | library module 'traceback.py' and Ka-Ping Yee's 'cgitb.py'. |
|
45 | 45 | |
|
46 | 46 | * Color schemes |
|
47 | 47 | The colors are defined in the class TBTools through the use of the |
|
48 | 48 | ColorSchemeTable class. Currently the following exist: |
|
49 | 49 | |
|
50 | 50 | - NoColor: allows all of this module to be used in any terminal (the color |
|
51 | 51 | escapes are just dummy blank strings). |
|
52 | 52 | |
|
53 | 53 | - Linux: is meant to look good in a terminal like the Linux console (black |
|
54 | 54 | or very dark background). |
|
55 | 55 | |
|
56 | 56 | - LightBG: similar to Linux but swaps dark/light colors to be more readable |
|
57 | 57 | in light background terminals. |
|
58 | 58 | |
|
59 | 59 | You can implement other color schemes easily, the syntax is fairly |
|
60 | 60 | self-explanatory. Please send back new schemes you develop to the author for |
|
61 | 61 | possible inclusion in future releases. |
|
62 | 62 | """ |
|
63 | 63 | |
|
64 | 64 | #***************************************************************************** |
|
65 | 65 | # Copyright (C) 2001 Nathaniel Gray <n8gray@caltech.edu> |
|
66 | 66 | # Copyright (C) 2001-2004 Fernando Perez <fperez@colorado.edu> |
|
67 | 67 | # |
|
68 | 68 | # Distributed under the terms of the BSD License. The full license is in |
|
69 | 69 | # the file COPYING, distributed as part of this software. |
|
70 | 70 | #***************************************************************************** |
|
71 | 71 | |
|
72 | 72 | # Required modules |
|
73 | 73 | import inspect |
|
74 | 74 | import keyword |
|
75 | 75 | import linecache |
|
76 | 76 | import os |
|
77 | 77 | import pydoc |
|
78 | 78 | import re |
|
79 | 79 | import string |
|
80 | 80 | import sys |
|
81 | 81 | import time |
|
82 | 82 | import tokenize |
|
83 | 83 | import traceback |
|
84 | 84 | import types |
|
85 | 85 | |
|
86 | 86 | # For purposes of monkeypatching inspect to fix a bug in it. |
|
87 | 87 | from inspect import getsourcefile, getfile, getmodule,\ |
|
88 | 88 | ismodule, isclass, ismethod, isfunction, istraceback, isframe, iscode |
|
89 | 89 | |
|
90 | 90 | |
|
91 | 91 | # IPython's own modules |
|
92 | 92 | # Modified pdb which doesn't damage IPython's readline handling |
|
93 | 93 | from IPython import Debugger, PyColorize |
|
94 | 94 | from IPython.ipstruct import Struct |
|
95 | 95 | from IPython.excolors import exception_colors |
|
96 | 96 | from IPython.genutils import Term,uniq_stable,error,info |
|
97 | 97 | |
|
98 | 98 | # Globals |
|
99 | 99 | # amount of space to put line numbers before verbose tracebacks |
|
100 | 100 | INDENT_SIZE = 8 |
|
101 | 101 | |
|
102 | 102 | # Default color scheme. This is used, for example, by the traceback |
|
103 | 103 | # formatter. When running in an actual IPython instance, the user's rc.colors |
|
104 | 104 | # value is used, but havinga module global makes this functionality available |
|
105 | 105 | # to users of ultraTB who are NOT running inside ipython. |
|
106 | 106 | DEFAULT_SCHEME = 'NoColor' |
|
107 | 107 | |
|
108 | 108 | #--------------------------------------------------------------------------- |
|
109 | 109 | # Code begins |
|
110 | 110 | |
|
111 | 111 | # Utility functions |
|
112 | 112 | def inspect_error(): |
|
113 | 113 | """Print a message about internal inspect errors. |
|
114 | 114 | |
|
115 | 115 | These are unfortunately quite common.""" |
|
116 | 116 | |
|
117 | 117 | error('Internal Python error in the inspect module.\n' |
|
118 | 118 | 'Below is the traceback from this internal error.\n') |
|
119 | 119 | |
|
120 | 120 | |
|
121 | 121 | def findsource(object): |
|
122 | 122 | """Return the entire source file and starting line number for an object. |
|
123 | 123 | |
|
124 | 124 | The argument may be a module, class, method, function, traceback, frame, |
|
125 | 125 | or code object. The source code is returned as a list of all the lines |
|
126 | 126 | in the file and the line number indexes a line in that list. An IOError |
|
127 | 127 | is raised if the source code cannot be retrieved. |
|
128 | 128 | |
|
129 | 129 | FIXED version with which we monkeypatch the stdlib to work around a bug.""" |
|
130 | 130 | |
|
131 | 131 | file = getsourcefile(object) or getfile(object) |
|
132 | 132 | # If the object is a frame, then trying to get the globals dict from its |
|
133 | 133 | # module won't work. Instead, the frame object itself has the globals |
|
134 | 134 | # dictionary. |
|
135 | 135 | globals_dict = None |
|
136 | 136 | if inspect.isframe(object): |
|
137 | 137 | # XXX: can this ever be false? |
|
138 | 138 | globals_dict = object.f_globals |
|
139 | 139 | else: |
|
140 | 140 | module = getmodule(object, file) |
|
141 | 141 | if module: |
|
142 | 142 | globals_dict = module.__dict__ |
|
143 | 143 | lines = linecache.getlines(file, globals_dict) |
|
144 | 144 | if not lines: |
|
145 | 145 | raise IOError('could not get source code') |
|
146 | 146 | |
|
147 | 147 | if ismodule(object): |
|
148 | 148 | return lines, 0 |
|
149 | 149 | |
|
150 | 150 | if isclass(object): |
|
151 | 151 | name = object.__name__ |
|
152 | 152 | pat = re.compile(r'^(\s*)class\s*' + name + r'\b') |
|
153 | 153 | # make some effort to find the best matching class definition: |
|
154 | 154 | # use the one with the least indentation, which is the one |
|
155 | 155 | # that's most probably not inside a function definition. |
|
156 | 156 | candidates = [] |
|
157 | 157 | for i in range(len(lines)): |
|
158 | 158 | match = pat.match(lines[i]) |
|
159 | 159 | if match: |
|
160 | 160 | # if it's at toplevel, it's already the best one |
|
161 | 161 | if lines[i][0] == 'c': |
|
162 | 162 | return lines, i |
|
163 | 163 | # else add whitespace to candidate list |
|
164 | 164 | candidates.append((match.group(1), i)) |
|
165 | 165 | if candidates: |
|
166 | 166 | # this will sort by whitespace, and by line number, |
|
167 | 167 | # less whitespace first |
|
168 | 168 | candidates.sort() |
|
169 | 169 | return lines, candidates[0][1] |
|
170 | 170 | else: |
|
171 | 171 | raise IOError('could not find class definition') |
|
172 | 172 | |
|
173 | 173 | if ismethod(object): |
|
174 | 174 | object = object.im_func |
|
175 | 175 | if isfunction(object): |
|
176 | 176 | object = object.func_code |
|
177 | 177 | if istraceback(object): |
|
178 | 178 | object = object.tb_frame |
|
179 | 179 | if isframe(object): |
|
180 | 180 | object = object.f_code |
|
181 | 181 | if iscode(object): |
|
182 | 182 | if not hasattr(object, 'co_firstlineno'): |
|
183 | 183 | raise IOError('could not find function definition') |
|
184 | 184 | pat = re.compile(r'^(\s*def\s)|(.*(?<!\w)lambda(:|\s))|^(\s*@)') |
|
185 | 185 | pmatch = pat.match |
|
186 | 186 | # fperez - fix: sometimes, co_firstlineno can give a number larger than |
|
187 | 187 | # the length of lines, which causes an error. Safeguard against that. |
|
188 | 188 | lnum = min(object.co_firstlineno,len(lines))-1 |
|
189 | 189 | while lnum > 0: |
|
190 | 190 | if pmatch(lines[lnum]): break |
|
191 | 191 | lnum -= 1 |
|
192 | 192 | |
|
193 | 193 | return lines, lnum |
|
194 | 194 | raise IOError('could not find code object') |
|
195 | 195 | |
|
196 | 196 | # Monkeypatch inspect to apply our bugfix. This code only works with py25 |
|
197 | 197 | if sys.version_info[:2] >= (2,5): |
|
198 | 198 | inspect.findsource = findsource |
|
199 | 199 | |
|
200 | 200 | def fix_frame_records_filenames(records): |
|
201 | 201 | """Try to fix the filenames in each record from inspect.getinnerframes(). |
|
202 | 202 | |
|
203 | 203 | Particularly, modules loaded from within zip files have useless filenames |
|
204 | 204 | attached to their code object, and inspect.getinnerframes() just uses it. |
|
205 | 205 | """ |
|
206 | 206 | fixed_records = [] |
|
207 | 207 | for frame, filename, line_no, func_name, lines, index in records: |
|
208 | 208 | # Look inside the frame's globals dictionary for __file__, which should |
|
209 | 209 | # be better. |
|
210 | 210 | better_fn = frame.f_globals.get('__file__', None) |
|
211 | 211 | if isinstance(better_fn, str): |
|
212 | 212 | # Check the type just in case someone did something weird with |
|
213 | 213 | # __file__. It might also be None if the error occurred during |
|
214 | 214 | # import. |
|
215 | 215 | filename = better_fn |
|
216 | 216 | fixed_records.append((frame, filename, line_no, func_name, lines, index)) |
|
217 | 217 | return fixed_records |
|
218 | 218 | |
|
219 | 219 | |
|
220 | 220 | def _fixed_getinnerframes(etb, context=1,tb_offset=0): |
|
221 | 221 | import linecache |
|
222 | 222 | LNUM_POS, LINES_POS, INDEX_POS = 2, 4, 5 |
|
223 | 223 | |
|
224 | 224 | records = fix_frame_records_filenames(inspect.getinnerframes(etb, context)) |
|
225 | 225 | |
|
226 | 226 | # If the error is at the console, don't build any context, since it would |
|
227 | 227 | # otherwise produce 5 blank lines printed out (there is no file at the |
|
228 | 228 | # console) |
|
229 | 229 | rec_check = records[tb_offset:] |
|
230 | 230 | try: |
|
231 | 231 | rname = rec_check[0][1] |
|
232 | 232 | if rname == '<ipython console>' or rname.endswith('<string>'): |
|
233 | 233 | return rec_check |
|
234 | 234 | except IndexError: |
|
235 | 235 | pass |
|
236 | 236 | |
|
237 | 237 | aux = traceback.extract_tb(etb) |
|
238 | 238 | assert len(records) == len(aux) |
|
239 | 239 | for i, (file, lnum, _, _) in zip(range(len(records)), aux): |
|
240 | 240 | maybeStart = lnum-1 - context//2 |
|
241 | 241 | start = max(maybeStart, 0) |
|
242 | 242 | end = start + context |
|
243 | 243 | lines = linecache.getlines(file)[start:end] |
|
244 | 244 | # pad with empty lines if necessary |
|
245 | 245 | if maybeStart < 0: |
|
246 | 246 | lines = (['\n'] * -maybeStart) + lines |
|
247 | 247 | if len(lines) < context: |
|
248 | 248 | lines += ['\n'] * (context - len(lines)) |
|
249 | 249 | buf = list(records[i]) |
|
250 | 250 | buf[LNUM_POS] = lnum |
|
251 | 251 | buf[INDEX_POS] = lnum - 1 - start |
|
252 | 252 | buf[LINES_POS] = lines |
|
253 | 253 | records[i] = tuple(buf) |
|
254 | 254 | return records[tb_offset:] |
|
255 | 255 | |
|
256 | 256 | # Helper function -- largely belongs to VerboseTB, but we need the same |
|
257 | 257 | # functionality to produce a pseudo verbose TB for SyntaxErrors, so that they |
|
258 | 258 | # can be recognized properly by ipython.el's py-traceback-line-re |
|
259 | 259 | # (SyntaxErrors have to be treated specially because they have no traceback) |
|
260 | 260 | |
|
261 | 261 | _parser = PyColorize.Parser() |
|
262 | 262 | |
|
263 | 263 | def _formatTracebackLines(lnum, index, lines, Colors, lvals=None,scheme=None): |
|
264 | 264 | numbers_width = INDENT_SIZE - 1 |
|
265 | 265 | res = [] |
|
266 | 266 | i = lnum - index |
|
267 | 267 | |
|
268 | 268 | # This lets us get fully syntax-highlighted tracebacks. |
|
269 | 269 | if scheme is None: |
|
270 | 270 | try: |
|
271 | # Again, reference to a global __IPYTHON__ that doesn't exist. | |
|
272 | # XXX | |
|
271 | 273 | scheme = __IPYTHON__.rc.colors |
|
272 | 274 | except: |
|
273 | 275 | scheme = DEFAULT_SCHEME |
|
274 | 276 | _line_format = _parser.format2 |
|
275 | 277 | |
|
276 | 278 | for line in lines: |
|
277 | 279 | new_line, err = _line_format(line,'str',scheme) |
|
278 | 280 | if not err: line = new_line |
|
279 | 281 | |
|
280 | 282 | if i == lnum: |
|
281 | 283 | # This is the line with the error |
|
282 | 284 | pad = numbers_width - len(str(i)) |
|
283 | 285 | if pad >= 3: |
|
284 | 286 | marker = '-'*(pad-3) + '-> ' |
|
285 | 287 | elif pad == 2: |
|
286 | 288 | marker = '> ' |
|
287 | 289 | elif pad == 1: |
|
288 | 290 | marker = '>' |
|
289 | 291 | else: |
|
290 | 292 | marker = '' |
|
291 | 293 | num = marker + str(i) |
|
292 | 294 | line = '%s%s%s %s%s' %(Colors.linenoEm, num, |
|
293 | 295 | Colors.line, line, Colors.Normal) |
|
294 | 296 | else: |
|
295 | 297 | num = '%*s' % (numbers_width,i) |
|
296 | 298 | line = '%s%s%s %s' %(Colors.lineno, num, |
|
297 | 299 | Colors.Normal, line) |
|
298 | 300 | |
|
299 | 301 | res.append(line) |
|
300 | 302 | if lvals and i == lnum: |
|
301 | 303 | res.append(lvals + '\n') |
|
302 | 304 | i = i + 1 |
|
303 | 305 | return res |
|
304 | 306 | |
|
305 | 307 | |
|
306 | 308 | #--------------------------------------------------------------------------- |
|
307 | 309 | # Module classes |
|
308 | 310 | class TBTools: |
|
309 | 311 | """Basic tools used by all traceback printer classes.""" |
|
310 | 312 | |
|
311 | 313 | def __init__(self,color_scheme = 'NoColor',call_pdb=False): |
|
312 | 314 | # Whether to call the interactive pdb debugger after printing |
|
313 | 315 | # tracebacks or not |
|
314 | 316 | self.call_pdb = call_pdb |
|
315 | 317 | |
|
316 | 318 | # Create color table |
|
317 | 319 | self.color_scheme_table = exception_colors() |
|
318 | 320 | |
|
319 | 321 | self.set_colors(color_scheme) |
|
320 | 322 | self.old_scheme = color_scheme # save initial value for toggles |
|
321 | 323 | |
|
322 | 324 | if call_pdb: |
|
323 | 325 | self.pdb = Debugger.Pdb(self.color_scheme_table.active_scheme_name) |
|
324 | 326 | else: |
|
325 | 327 | self.pdb = None |
|
326 | 328 | |
|
327 | 329 | def set_colors(self,*args,**kw): |
|
328 | 330 | """Shorthand access to the color table scheme selector method.""" |
|
329 | 331 | |
|
330 | 332 | # Set own color table |
|
331 | 333 | self.color_scheme_table.set_active_scheme(*args,**kw) |
|
332 | 334 | # for convenience, set Colors to the active scheme |
|
333 | 335 | self.Colors = self.color_scheme_table.active_colors |
|
334 | 336 | # Also set colors of debugger |
|
335 | 337 | if hasattr(self,'pdb') and self.pdb is not None: |
|
336 | 338 | self.pdb.set_colors(*args,**kw) |
|
337 | 339 | |
|
338 | 340 | def color_toggle(self): |
|
339 | 341 | """Toggle between the currently active color scheme and NoColor.""" |
|
340 | 342 | |
|
341 | 343 | if self.color_scheme_table.active_scheme_name == 'NoColor': |
|
342 | 344 | self.color_scheme_table.set_active_scheme(self.old_scheme) |
|
343 | 345 | self.Colors = self.color_scheme_table.active_colors |
|
344 | 346 | else: |
|
345 | 347 | self.old_scheme = self.color_scheme_table.active_scheme_name |
|
346 | 348 | self.color_scheme_table.set_active_scheme('NoColor') |
|
347 | 349 | self.Colors = self.color_scheme_table.active_colors |
|
348 | 350 | |
|
349 | 351 | #--------------------------------------------------------------------------- |
|
350 | 352 | class ListTB(TBTools): |
|
351 | 353 | """Print traceback information from a traceback list, with optional color. |
|
352 | 354 | |
|
353 | 355 | Calling: requires 3 arguments: |
|
354 | 356 | (etype, evalue, elist) |
|
355 | 357 | as would be obtained by: |
|
356 | 358 | etype, evalue, tb = sys.exc_info() |
|
357 | 359 | if tb: |
|
358 | 360 | elist = traceback.extract_tb(tb) |
|
359 | 361 | else: |
|
360 | 362 | elist = None |
|
361 | 363 | |
|
362 | 364 | It can thus be used by programs which need to process the traceback before |
|
363 | 365 | printing (such as console replacements based on the code module from the |
|
364 | 366 | standard library). |
|
365 | 367 | |
|
366 | 368 | Because they are meant to be called without a full traceback (only a |
|
367 | 369 | list), instances of this class can't call the interactive pdb debugger.""" |
|
368 | 370 | |
|
369 | 371 | def __init__(self,color_scheme = 'NoColor'): |
|
370 | 372 | TBTools.__init__(self,color_scheme = color_scheme,call_pdb=0) |
|
371 | 373 | |
|
372 | 374 | def __call__(self, etype, value, elist): |
|
373 | 375 | Term.cout.flush() |
|
374 | 376 | print >> Term.cerr, self.text(etype,value,elist) |
|
375 | 377 | Term.cerr.flush() |
|
376 | 378 | |
|
377 | 379 | def text(self,etype, value, elist,context=5): |
|
378 | 380 | """Return a color formatted string with the traceback info.""" |
|
379 | 381 | |
|
380 | 382 | Colors = self.Colors |
|
381 | 383 | out_string = ['%s%s%s\n' % (Colors.topline,'-'*60,Colors.Normal)] |
|
382 | 384 | if elist: |
|
383 | 385 | out_string.append('Traceback %s(most recent call last)%s:' % \ |
|
384 | 386 | (Colors.normalEm, Colors.Normal) + '\n') |
|
385 | 387 | out_string.extend(self._format_list(elist)) |
|
386 | 388 | lines = self._format_exception_only(etype, value) |
|
387 | 389 | for line in lines[:-1]: |
|
388 | 390 | out_string.append(" "+line) |
|
389 | 391 | out_string.append(lines[-1]) |
|
390 | 392 | return ''.join(out_string) |
|
391 | 393 | |
|
392 | 394 | def _format_list(self, extracted_list): |
|
393 | 395 | """Format a list of traceback entry tuples for printing. |
|
394 | 396 | |
|
395 | 397 | Given a list of tuples as returned by extract_tb() or |
|
396 | 398 | extract_stack(), return a list of strings ready for printing. |
|
397 | 399 | Each string in the resulting list corresponds to the item with the |
|
398 | 400 | same index in the argument list. Each string ends in a newline; |
|
399 | 401 | the strings may contain internal newlines as well, for those items |
|
400 | 402 | whose source text line is not None. |
|
401 | 403 | |
|
402 | 404 | Lifted almost verbatim from traceback.py |
|
403 | 405 | """ |
|
404 | 406 | |
|
405 | 407 | Colors = self.Colors |
|
406 | 408 | list = [] |
|
407 | 409 | for filename, lineno, name, line in extracted_list[:-1]: |
|
408 | 410 | item = ' File %s"%s"%s, line %s%d%s, in %s%s%s\n' % \ |
|
409 | 411 | (Colors.filename, filename, Colors.Normal, |
|
410 | 412 | Colors.lineno, lineno, Colors.Normal, |
|
411 | 413 | Colors.name, name, Colors.Normal) |
|
412 | 414 | if line: |
|
413 | 415 | item = item + ' %s\n' % line.strip() |
|
414 | 416 | list.append(item) |
|
415 | 417 | # Emphasize the last entry |
|
416 | 418 | filename, lineno, name, line = extracted_list[-1] |
|
417 | 419 | item = '%s File %s"%s"%s, line %s%d%s, in %s%s%s%s\n' % \ |
|
418 | 420 | (Colors.normalEm, |
|
419 | 421 | Colors.filenameEm, filename, Colors.normalEm, |
|
420 | 422 | Colors.linenoEm, lineno, Colors.normalEm, |
|
421 | 423 | Colors.nameEm, name, Colors.normalEm, |
|
422 | 424 | Colors.Normal) |
|
423 | 425 | if line: |
|
424 | 426 | item = item + '%s %s%s\n' % (Colors.line, line.strip(), |
|
425 | 427 | Colors.Normal) |
|
426 | 428 | list.append(item) |
|
427 | 429 | return list |
|
428 | 430 | |
|
429 | 431 | def _format_exception_only(self, etype, value): |
|
430 | 432 | """Format the exception part of a traceback. |
|
431 | 433 | |
|
432 | 434 | The arguments are the exception type and value such as given by |
|
433 | 435 | sys.exc_info()[:2]. The return value is a list of strings, each ending |
|
434 | 436 | in a newline. Normally, the list contains a single string; however, |
|
435 | 437 | for SyntaxError exceptions, it contains several lines that (when |
|
436 | 438 | printed) display detailed information about where the syntax error |
|
437 | 439 | occurred. The message indicating which exception occurred is the |
|
438 | 440 | always last string in the list. |
|
439 | 441 | |
|
440 | 442 | Also lifted nearly verbatim from traceback.py |
|
441 | 443 | """ |
|
442 | 444 | |
|
443 | 445 | have_filedata = False |
|
444 | 446 | Colors = self.Colors |
|
445 | 447 | list = [] |
|
446 | 448 | try: |
|
447 | 449 | stype = Colors.excName + etype.__name__ + Colors.Normal |
|
448 | 450 | except AttributeError: |
|
449 | 451 | stype = etype # String exceptions don't get special coloring |
|
450 | 452 | if value is None: |
|
451 | 453 | list.append( str(stype) + '\n') |
|
452 | 454 | else: |
|
453 | 455 | if etype is SyntaxError: |
|
454 | 456 | try: |
|
455 | 457 | msg, (filename, lineno, offset, line) = value |
|
456 | 458 | except: |
|
457 | 459 | have_filedata = False |
|
458 | 460 | else: |
|
459 | 461 | have_filedata = True |
|
460 | 462 | #print 'filename is',filename # dbg |
|
461 | 463 | if not filename: filename = "<string>" |
|
462 | 464 | list.append('%s File %s"%s"%s, line %s%d%s\n' % \ |
|
463 | 465 | (Colors.normalEm, |
|
464 | 466 | Colors.filenameEm, filename, Colors.normalEm, |
|
465 | 467 | Colors.linenoEm, lineno, Colors.Normal )) |
|
466 | 468 | if line is not None: |
|
467 | 469 | i = 0 |
|
468 | 470 | while i < len(line) and line[i].isspace(): |
|
469 | 471 | i = i+1 |
|
470 | 472 | list.append('%s %s%s\n' % (Colors.line, |
|
471 | 473 | line.strip(), |
|
472 | 474 | Colors.Normal)) |
|
473 | 475 | if offset is not None: |
|
474 | 476 | s = ' ' |
|
475 | 477 | for c in line[i:offset-1]: |
|
476 | 478 | if c.isspace(): |
|
477 | 479 | s = s + c |
|
478 | 480 | else: |
|
479 | 481 | s = s + ' ' |
|
480 | 482 | list.append('%s%s^%s\n' % (Colors.caret, s, |
|
481 | 483 | Colors.Normal) ) |
|
482 | 484 | value = msg |
|
483 | 485 | s = self._some_str(value) |
|
484 | 486 | if s: |
|
485 | 487 | list.append('%s%s:%s %s\n' % (str(stype), Colors.excName, |
|
486 | 488 | Colors.Normal, s)) |
|
487 | 489 | else: |
|
488 | 490 | list.append('%s\n' % str(stype)) |
|
489 | 491 | |
|
490 | # vds:>> | |
|
491 | if have_filedata: | |
|
492 | __IPYTHON__.hooks.synchronize_with_editor(filename, lineno, 0) | |
|
493 | # vds:<< | |
|
492 | # This is being commented out for now as the __IPYTHON__ variable | |
|
493 | # referenced here is not resolved and causes massive test failures | |
|
494 | # and errors. B. Granger, 04/2009. XXX | |
|
495 | # See https://bugs.launchpad.net/bugs/362137 | |
|
496 | # # vds:>> | |
|
497 | # if have_filedata: | |
|
498 | # __IPYTHON__.hooks.synchronize_with_editor(filename, lineno, 0) | |
|
499 | # # vds:<< | |
|
494 | 500 | |
|
495 | 501 | return list |
|
496 | 502 | |
|
497 | 503 | def _some_str(self, value): |
|
498 | 504 | # Lifted from traceback.py |
|
499 | 505 | try: |
|
500 | 506 | return str(value) |
|
501 | 507 | except: |
|
502 | 508 | return '<unprintable %s object>' % type(value).__name__ |
|
503 | 509 | |
|
504 | 510 | #---------------------------------------------------------------------------- |
|
505 | 511 | class VerboseTB(TBTools): |
|
506 | 512 | """A port of Ka-Ping Yee's cgitb.py module that outputs color text instead |
|
507 | 513 | of HTML. Requires inspect and pydoc. Crazy, man. |
|
508 | 514 | |
|
509 | 515 | Modified version which optionally strips the topmost entries from the |
|
510 | 516 | traceback, to be used with alternate interpreters (because their own code |
|
511 | 517 | would appear in the traceback).""" |
|
512 | 518 | |
|
513 | 519 | def __init__(self,color_scheme = 'Linux',tb_offset=0,long_header=0, |
|
514 | 520 | call_pdb = 0, include_vars=1): |
|
515 | 521 | """Specify traceback offset, headers and color scheme. |
|
516 | 522 | |
|
517 | 523 | Define how many frames to drop from the tracebacks. Calling it with |
|
518 | 524 | tb_offset=1 allows use of this handler in interpreters which will have |
|
519 | 525 | their own code at the top of the traceback (VerboseTB will first |
|
520 | 526 | remove that frame before printing the traceback info).""" |
|
521 | 527 | TBTools.__init__(self,color_scheme=color_scheme,call_pdb=call_pdb) |
|
522 | 528 | self.tb_offset = tb_offset |
|
523 | 529 | self.long_header = long_header |
|
524 | 530 | self.include_vars = include_vars |
|
525 | 531 | |
|
526 | 532 | def text(self, etype, evalue, etb, context=5): |
|
527 | 533 | """Return a nice text document describing the traceback.""" |
|
528 | 534 | |
|
529 | 535 | # some locals |
|
530 | 536 | try: |
|
531 | 537 | etype = etype.__name__ |
|
532 | 538 | except AttributeError: |
|
533 | 539 | pass |
|
534 | 540 | Colors = self.Colors # just a shorthand + quicker name lookup |
|
535 | 541 | ColorsNormal = Colors.Normal # used a lot |
|
536 | 542 | col_scheme = self.color_scheme_table.active_scheme_name |
|
537 | 543 | indent = ' '*INDENT_SIZE |
|
538 | 544 | em_normal = '%s\n%s%s' % (Colors.valEm, indent,ColorsNormal) |
|
539 | 545 | undefined = '%sundefined%s' % (Colors.em, ColorsNormal) |
|
540 | 546 | exc = '%s%s%s' % (Colors.excName,etype,ColorsNormal) |
|
541 | 547 | |
|
542 | 548 | # some internal-use functions |
|
543 | 549 | def text_repr(value): |
|
544 | 550 | """Hopefully pretty robust repr equivalent.""" |
|
545 | 551 | # this is pretty horrible but should always return *something* |
|
546 | 552 | try: |
|
547 | 553 | return pydoc.text.repr(value) |
|
548 | 554 | except KeyboardInterrupt: |
|
549 | 555 | raise |
|
550 | 556 | except: |
|
551 | 557 | try: |
|
552 | 558 | return repr(value) |
|
553 | 559 | except KeyboardInterrupt: |
|
554 | 560 | raise |
|
555 | 561 | except: |
|
556 | 562 | try: |
|
557 | 563 | # all still in an except block so we catch |
|
558 | 564 | # getattr raising |
|
559 | 565 | name = getattr(value, '__name__', None) |
|
560 | 566 | if name: |
|
561 | 567 | # ick, recursion |
|
562 | 568 | return text_repr(name) |
|
563 | 569 | klass = getattr(value, '__class__', None) |
|
564 | 570 | if klass: |
|
565 | 571 | return '%s instance' % text_repr(klass) |
|
566 | 572 | except KeyboardInterrupt: |
|
567 | 573 | raise |
|
568 | 574 | except: |
|
569 | 575 | return 'UNRECOVERABLE REPR FAILURE' |
|
570 | 576 | def eqrepr(value, repr=text_repr): return '=%s' % repr(value) |
|
571 | 577 | def nullrepr(value, repr=text_repr): return '' |
|
572 | 578 | |
|
573 | 579 | # meat of the code begins |
|
574 | 580 | try: |
|
575 | 581 | etype = etype.__name__ |
|
576 | 582 | except AttributeError: |
|
577 | 583 | pass |
|
578 | 584 | |
|
579 | 585 | if self.long_header: |
|
580 | 586 | # Header with the exception type, python version, and date |
|
581 | 587 | pyver = 'Python ' + string.split(sys.version)[0] + ': ' + sys.executable |
|
582 | 588 | date = time.ctime(time.time()) |
|
583 | 589 | |
|
584 | 590 | head = '%s%s%s\n%s%s%s\n%s' % (Colors.topline, '-'*75, ColorsNormal, |
|
585 | 591 | exc, ' '*(75-len(str(etype))-len(pyver)), |
|
586 | 592 | pyver, string.rjust(date, 75) ) |
|
587 | 593 | head += "\nA problem occured executing Python code. Here is the sequence of function"\ |
|
588 | 594 | "\ncalls leading up to the error, with the most recent (innermost) call last." |
|
589 | 595 | else: |
|
590 | 596 | # Simplified header |
|
591 | 597 | head = '%s%s%s\n%s%s' % (Colors.topline, '-'*75, ColorsNormal,exc, |
|
592 | 598 | string.rjust('Traceback (most recent call last)', |
|
593 | 599 | 75 - len(str(etype)) ) ) |
|
594 | 600 | frames = [] |
|
595 | 601 | # Flush cache before calling inspect. This helps alleviate some of the |
|
596 | 602 | # problems with python 2.3's inspect.py. |
|
597 | 603 | linecache.checkcache() |
|
598 | 604 | # Drop topmost frames if requested |
|
599 | 605 | try: |
|
600 | 606 | # Try the default getinnerframes and Alex's: Alex's fixes some |
|
601 | 607 | # problems, but it generates empty tracebacks for console errors |
|
602 | 608 | # (5 blanks lines) where none should be returned. |
|
603 | 609 | #records = inspect.getinnerframes(etb, context)[self.tb_offset:] |
|
604 | 610 | #print 'python records:', records # dbg |
|
605 | 611 | records = _fixed_getinnerframes(etb, context,self.tb_offset) |
|
606 | 612 | #print 'alex records:', records # dbg |
|
607 | 613 | except: |
|
608 | 614 | |
|
609 | 615 | # FIXME: I've been getting many crash reports from python 2.3 |
|
610 | 616 | # users, traceable to inspect.py. If I can find a small test-case |
|
611 | 617 | # to reproduce this, I should either write a better workaround or |
|
612 | 618 | # file a bug report against inspect (if that's the real problem). |
|
613 | 619 | # So far, I haven't been able to find an isolated example to |
|
614 | 620 | # reproduce the problem. |
|
615 | 621 | inspect_error() |
|
616 | 622 | traceback.print_exc(file=Term.cerr) |
|
617 | 623 | info('\nUnfortunately, your original traceback can not be constructed.\n') |
|
618 | 624 | return '' |
|
619 | 625 | |
|
620 | 626 | # build some color string templates outside these nested loops |
|
621 | 627 | tpl_link = '%s%%s%s' % (Colors.filenameEm,ColorsNormal) |
|
622 | 628 | tpl_call = 'in %s%%s%s%%s%s' % (Colors.vName, Colors.valEm, |
|
623 | 629 | ColorsNormal) |
|
624 | 630 | tpl_call_fail = 'in %s%%s%s(***failed resolving arguments***)%s' % \ |
|
625 | 631 | (Colors.vName, Colors.valEm, ColorsNormal) |
|
626 | 632 | tpl_local_var = '%s%%s%s' % (Colors.vName, ColorsNormal) |
|
627 | 633 | tpl_global_var = '%sglobal%s %s%%s%s' % (Colors.em, ColorsNormal, |
|
628 | 634 | Colors.vName, ColorsNormal) |
|
629 | 635 | tpl_name_val = '%%s %s= %%s%s' % (Colors.valEm, ColorsNormal) |
|
630 | 636 | tpl_line = '%s%%s%s %%s' % (Colors.lineno, ColorsNormal) |
|
631 | 637 | tpl_line_em = '%s%%s%s %%s%s' % (Colors.linenoEm,Colors.line, |
|
632 | 638 | ColorsNormal) |
|
633 | 639 | |
|
634 | 640 | # now, loop over all records printing context and info |
|
635 | 641 | abspath = os.path.abspath |
|
636 | 642 | for frame, file, lnum, func, lines, index in records: |
|
637 | 643 | #print '*** record:',file,lnum,func,lines,index # dbg |
|
638 | 644 | try: |
|
639 | 645 | file = file and abspath(file) or '?' |
|
640 | 646 | except OSError: |
|
641 | 647 | # if file is '<console>' or something not in the filesystem, |
|
642 | 648 | # the abspath call will throw an OSError. Just ignore it and |
|
643 | 649 | # keep the original file string. |
|
644 | 650 | pass |
|
645 | 651 | link = tpl_link % file |
|
646 | 652 | try: |
|
647 | 653 | args, varargs, varkw, locals = inspect.getargvalues(frame) |
|
648 | 654 | except: |
|
649 | 655 | # This can happen due to a bug in python2.3. We should be |
|
650 | 656 | # able to remove this try/except when 2.4 becomes a |
|
651 | 657 | # requirement. Bug details at http://python.org/sf/1005466 |
|
652 | 658 | inspect_error() |
|
653 | 659 | traceback.print_exc(file=Term.cerr) |
|
654 | 660 | info("\nIPython's exception reporting continues...\n") |
|
655 | 661 | |
|
656 | 662 | if func == '?': |
|
657 | 663 | call = '' |
|
658 | 664 | else: |
|
659 | 665 | # Decide whether to include variable details or not |
|
660 | 666 | var_repr = self.include_vars and eqrepr or nullrepr |
|
661 | 667 | try: |
|
662 | 668 | call = tpl_call % (func,inspect.formatargvalues(args, |
|
663 | 669 | varargs, varkw, |
|
664 | 670 | locals,formatvalue=var_repr)) |
|
665 | 671 | except KeyError: |
|
666 | 672 | # Very odd crash from inspect.formatargvalues(). The |
|
667 | 673 | # scenario under which it appeared was a call to |
|
668 | 674 | # view(array,scale) in NumTut.view.view(), where scale had |
|
669 | 675 | # been defined as a scalar (it should be a tuple). Somehow |
|
670 | 676 | # inspect messes up resolving the argument list of view() |
|
671 | 677 | # and barfs out. At some point I should dig into this one |
|
672 | 678 | # and file a bug report about it. |
|
673 | 679 | inspect_error() |
|
674 | 680 | traceback.print_exc(file=Term.cerr) |
|
675 | 681 | info("\nIPython's exception reporting continues...\n") |
|
676 | 682 | call = tpl_call_fail % func |
|
677 | 683 | |
|
678 | 684 | # Initialize a list of names on the current line, which the |
|
679 | 685 | # tokenizer below will populate. |
|
680 | 686 | names = [] |
|
681 | 687 | |
|
682 | 688 | def tokeneater(token_type, token, start, end, line): |
|
683 | 689 | """Stateful tokeneater which builds dotted names. |
|
684 | 690 | |
|
685 | 691 | The list of names it appends to (from the enclosing scope) can |
|
686 | 692 | contain repeated composite names. This is unavoidable, since |
|
687 | 693 | there is no way to disambguate partial dotted structures until |
|
688 | 694 | the full list is known. The caller is responsible for pruning |
|
689 | 695 | the final list of duplicates before using it.""" |
|
690 | 696 | |
|
691 | 697 | # build composite names |
|
692 | 698 | if token == '.': |
|
693 | 699 | try: |
|
694 | 700 | names[-1] += '.' |
|
695 | 701 | # store state so the next token is added for x.y.z names |
|
696 | 702 | tokeneater.name_cont = True |
|
697 | 703 | return |
|
698 | 704 | except IndexError: |
|
699 | 705 | pass |
|
700 | 706 | if token_type == tokenize.NAME and token not in keyword.kwlist: |
|
701 | 707 | if tokeneater.name_cont: |
|
702 | 708 | # Dotted names |
|
703 | 709 | names[-1] += token |
|
704 | 710 | tokeneater.name_cont = False |
|
705 | 711 | else: |
|
706 | 712 | # Regular new names. We append everything, the caller |
|
707 | 713 | # will be responsible for pruning the list later. It's |
|
708 | 714 | # very tricky to try to prune as we go, b/c composite |
|
709 | 715 | # names can fool us. The pruning at the end is easy |
|
710 | 716 | # to do (or the caller can print a list with repeated |
|
711 | 717 | # names if so desired. |
|
712 | 718 | names.append(token) |
|
713 | 719 | elif token_type == tokenize.NEWLINE: |
|
714 | 720 | raise IndexError |
|
715 | 721 | # we need to store a bit of state in the tokenizer to build |
|
716 | 722 | # dotted names |
|
717 | 723 | tokeneater.name_cont = False |
|
718 | 724 | |
|
719 | 725 | def linereader(file=file, lnum=[lnum], getline=linecache.getline): |
|
720 | 726 | line = getline(file, lnum[0]) |
|
721 | 727 | lnum[0] += 1 |
|
722 | 728 | return line |
|
723 | 729 | |
|
724 | 730 | # Build the list of names on this line of code where the exception |
|
725 | 731 | # occurred. |
|
726 | 732 | try: |
|
727 | 733 | # This builds the names list in-place by capturing it from the |
|
728 | 734 | # enclosing scope. |
|
729 | 735 | tokenize.tokenize(linereader, tokeneater) |
|
730 | 736 | except IndexError: |
|
731 | 737 | # signals exit of tokenizer |
|
732 | 738 | pass |
|
733 | 739 | except tokenize.TokenError,msg: |
|
734 | 740 | _m = ("An unexpected error occurred while tokenizing input\n" |
|
735 | 741 | "The following traceback may be corrupted or invalid\n" |
|
736 | 742 | "The error message is: %s\n" % msg) |
|
737 | 743 | error(_m) |
|
738 | 744 | |
|
739 | 745 | # prune names list of duplicates, but keep the right order |
|
740 | 746 | unique_names = uniq_stable(names) |
|
741 | 747 | |
|
742 | 748 | # Start loop over vars |
|
743 | 749 | lvals = [] |
|
744 | 750 | if self.include_vars: |
|
745 | 751 | for name_full in unique_names: |
|
746 | 752 | name_base = name_full.split('.',1)[0] |
|
747 | 753 | if name_base in frame.f_code.co_varnames: |
|
748 | 754 | if locals.has_key(name_base): |
|
749 | 755 | try: |
|
750 | 756 | value = repr(eval(name_full,locals)) |
|
751 | 757 | except: |
|
752 | 758 | value = undefined |
|
753 | 759 | else: |
|
754 | 760 | value = undefined |
|
755 | 761 | name = tpl_local_var % name_full |
|
756 | 762 | else: |
|
757 | 763 | if frame.f_globals.has_key(name_base): |
|
758 | 764 | try: |
|
759 | 765 | value = repr(eval(name_full,frame.f_globals)) |
|
760 | 766 | except: |
|
761 | 767 | value = undefined |
|
762 | 768 | else: |
|
763 | 769 | value = undefined |
|
764 | 770 | name = tpl_global_var % name_full |
|
765 | 771 | lvals.append(tpl_name_val % (name,value)) |
|
766 | 772 | if lvals: |
|
767 | 773 | lvals = '%s%s' % (indent,em_normal.join(lvals)) |
|
768 | 774 | else: |
|
769 | 775 | lvals = '' |
|
770 | 776 | |
|
771 | 777 | level = '%s %s\n' % (link,call) |
|
772 | 778 | |
|
773 | 779 | if index is None: |
|
774 | 780 | frames.append(level) |
|
775 | 781 | else: |
|
776 | 782 | frames.append('%s%s' % (level,''.join( |
|
777 | 783 | _formatTracebackLines(lnum,index,lines,Colors,lvals, |
|
778 | 784 | col_scheme)))) |
|
779 | 785 | |
|
780 | 786 | # Get (safely) a string form of the exception info |
|
781 | 787 | try: |
|
782 | 788 | etype_str,evalue_str = map(str,(etype,evalue)) |
|
783 | 789 | except: |
|
784 | 790 | # User exception is improperly defined. |
|
785 | 791 | etype,evalue = str,sys.exc_info()[:2] |
|
786 | 792 | etype_str,evalue_str = map(str,(etype,evalue)) |
|
787 | 793 | # ... and format it |
|
788 | 794 | exception = ['%s%s%s: %s' % (Colors.excName, etype_str, |
|
789 | 795 | ColorsNormal, evalue_str)] |
|
790 | 796 | if type(evalue) is types.InstanceType: |
|
791 | 797 | try: |
|
792 | 798 | names = [w for w in dir(evalue) if isinstance(w, basestring)] |
|
793 | 799 | except: |
|
794 | 800 | # Every now and then, an object with funny inernals blows up |
|
795 | 801 | # when dir() is called on it. We do the best we can to report |
|
796 | 802 | # the problem and continue |
|
797 | 803 | _m = '%sException reporting error (object with broken dir())%s:' |
|
798 | 804 | exception.append(_m % (Colors.excName,ColorsNormal)) |
|
799 | 805 | etype_str,evalue_str = map(str,sys.exc_info()[:2]) |
|
800 | 806 | exception.append('%s%s%s: %s' % (Colors.excName,etype_str, |
|
801 | 807 | ColorsNormal, evalue_str)) |
|
802 | 808 | names = [] |
|
803 | 809 | for name in names: |
|
804 | 810 | value = text_repr(getattr(evalue, name)) |
|
805 | 811 | exception.append('\n%s%s = %s' % (indent, name, value)) |
|
806 | 812 | |
|
807 | # vds: >> | |
|
808 | if records: | |
|
809 | filepath, lnum = records[-1][1:3] | |
|
810 | #print "file:", str(file), "linenb", str(lnum) # dbg | |
|
811 | filepath = os.path.abspath(filepath) | |
|
812 | __IPYTHON__.hooks.synchronize_with_editor(filepath, lnum, 0) | |
|
813 | # vds: << | |
|
813 | # This is being commented out for now as the __IPYTHON__ variable | |
|
814 | # referenced here is not resolved and causes massive test failures | |
|
815 | # and errors. B. Granger, 04/2009. XXX | |
|
816 | # See https://bugs.launchpad.net/bugs/362137 | |
|
817 | # # vds: >> | |
|
818 | # if records: | |
|
819 | # filepath, lnum = records[-1][1:3] | |
|
820 | # #print "file:", str(file), "linenb", str(lnum) # dbg | |
|
821 | # filepath = os.path.abspath(filepath) | |
|
822 | # __IPYTHON__.hooks.synchronize_with_editor(filepath, lnum, 0) | |
|
823 | # # vds: << | |
|
814 | 824 | |
|
815 | 825 | # return all our info assembled as a single string |
|
816 | 826 | return '%s\n\n%s\n%s' % (head,'\n'.join(frames),''.join(exception[0]) ) |
|
817 | 827 | |
|
818 | 828 | def debugger(self,force=False): |
|
819 | 829 | """Call up the pdb debugger if desired, always clean up the tb |
|
820 | 830 | reference. |
|
821 | 831 | |
|
822 | 832 | Keywords: |
|
823 | 833 | |
|
824 | 834 | - force(False): by default, this routine checks the instance call_pdb |
|
825 | 835 | flag and does not actually invoke the debugger if the flag is false. |
|
826 | 836 | The 'force' option forces the debugger to activate even if the flag |
|
827 | 837 | is false. |
|
828 | 838 | |
|
829 | 839 | If the call_pdb flag is set, the pdb interactive debugger is |
|
830 | 840 | invoked. In all cases, the self.tb reference to the current traceback |
|
831 | 841 | is deleted to prevent lingering references which hamper memory |
|
832 | 842 | management. |
|
833 | 843 | |
|
834 | 844 | Note that each call to pdb() does an 'import readline', so if your app |
|
835 | 845 | requires a special setup for the readline completers, you'll have to |
|
836 | 846 | fix that by hand after invoking the exception handler.""" |
|
837 | 847 | |
|
838 | 848 | if force or self.call_pdb: |
|
839 | 849 | if self.pdb is None: |
|
840 | 850 | self.pdb = Debugger.Pdb( |
|
841 | 851 | self.color_scheme_table.active_scheme_name) |
|
842 | 852 | # the system displayhook may have changed, restore the original |
|
843 | 853 | # for pdb |
|
844 | 854 | dhook = sys.displayhook |
|
845 | 855 | sys.displayhook = sys.__displayhook__ |
|
846 | 856 | self.pdb.reset() |
|
847 | 857 | # Find the right frame so we don't pop up inside ipython itself |
|
848 | 858 | if hasattr(self,'tb'): |
|
849 | 859 | etb = self.tb |
|
850 | 860 | else: |
|
851 | 861 | etb = self.tb = sys.last_traceback |
|
852 | 862 | while self.tb.tb_next is not None: |
|
853 | 863 | self.tb = self.tb.tb_next |
|
854 | 864 | try: |
|
855 | 865 | if etb and etb.tb_next: |
|
856 | 866 | etb = etb.tb_next |
|
857 | 867 | self.pdb.botframe = etb.tb_frame |
|
858 | 868 | self.pdb.interaction(self.tb.tb_frame, self.tb) |
|
859 | 869 | finally: |
|
860 | 870 | sys.displayhook = dhook |
|
861 | 871 | |
|
862 | 872 | if hasattr(self,'tb'): |
|
863 | 873 | del self.tb |
|
864 | 874 | |
|
865 | 875 | def handler(self, info=None): |
|
866 | 876 | (etype, evalue, etb) = info or sys.exc_info() |
|
867 | 877 | self.tb = etb |
|
868 | 878 | Term.cout.flush() |
|
869 | 879 | print >> Term.cerr, self.text(etype, evalue, etb) |
|
870 | 880 | Term.cerr.flush() |
|
871 | 881 | |
|
872 | 882 | # Changed so an instance can just be called as VerboseTB_inst() and print |
|
873 | 883 | # out the right info on its own. |
|
874 | 884 | def __call__(self, etype=None, evalue=None, etb=None): |
|
875 | 885 | """This hook can replace sys.excepthook (for Python 2.1 or higher).""" |
|
876 | 886 | if etb is None: |
|
877 | 887 | self.handler() |
|
878 | 888 | else: |
|
879 | 889 | self.handler((etype, evalue, etb)) |
|
880 | 890 | try: |
|
881 | 891 | self.debugger() |
|
882 | 892 | except KeyboardInterrupt: |
|
883 | 893 | print "\nKeyboardInterrupt" |
|
884 | 894 | |
|
885 | 895 | #---------------------------------------------------------------------------- |
|
886 | 896 | class FormattedTB(VerboseTB,ListTB): |
|
887 | 897 | """Subclass ListTB but allow calling with a traceback. |
|
888 | 898 | |
|
889 | 899 | It can thus be used as a sys.excepthook for Python > 2.1. |
|
890 | 900 | |
|
891 | 901 | Also adds 'Context' and 'Verbose' modes, not available in ListTB. |
|
892 | 902 | |
|
893 | 903 | Allows a tb_offset to be specified. This is useful for situations where |
|
894 | 904 | one needs to remove a number of topmost frames from the traceback (such as |
|
895 | 905 | occurs with python programs that themselves execute other python code, |
|
896 | 906 | like Python shells). """ |
|
897 | 907 | |
|
898 | 908 | def __init__(self, mode = 'Plain', color_scheme='Linux', |
|
899 | 909 | tb_offset = 0,long_header=0,call_pdb=0,include_vars=0): |
|
900 | 910 | |
|
901 | 911 | # NEVER change the order of this list. Put new modes at the end: |
|
902 | 912 | self.valid_modes = ['Plain','Context','Verbose'] |
|
903 | 913 | self.verbose_modes = self.valid_modes[1:3] |
|
904 | 914 | |
|
905 | 915 | VerboseTB.__init__(self,color_scheme,tb_offset,long_header, |
|
906 | 916 | call_pdb=call_pdb,include_vars=include_vars) |
|
907 | 917 | self.set_mode(mode) |
|
908 | 918 | |
|
909 | 919 | def _extract_tb(self,tb): |
|
910 | 920 | if tb: |
|
911 | 921 | return traceback.extract_tb(tb) |
|
912 | 922 | else: |
|
913 | 923 | return None |
|
914 | 924 | |
|
915 | 925 | def text(self, etype, value, tb,context=5,mode=None): |
|
916 | 926 | """Return formatted traceback. |
|
917 | 927 | |
|
918 | 928 | If the optional mode parameter is given, it overrides the current |
|
919 | 929 | mode.""" |
|
920 | 930 | |
|
921 | 931 | if mode is None: |
|
922 | 932 | mode = self.mode |
|
923 | 933 | if mode in self.verbose_modes: |
|
924 | 934 | # verbose modes need a full traceback |
|
925 | 935 | return VerboseTB.text(self,etype, value, tb,context=5) |
|
926 | 936 | else: |
|
927 | 937 | # We must check the source cache because otherwise we can print |
|
928 | 938 | # out-of-date source code. |
|
929 | 939 | linecache.checkcache() |
|
930 | 940 | # Now we can extract and format the exception |
|
931 | 941 | elist = self._extract_tb(tb) |
|
932 | 942 | if len(elist) > self.tb_offset: |
|
933 | 943 | del elist[:self.tb_offset] |
|
934 | 944 | return ListTB.text(self,etype,value,elist) |
|
935 | 945 | |
|
936 | 946 | def set_mode(self,mode=None): |
|
937 | 947 | """Switch to the desired mode. |
|
938 | 948 | |
|
939 | 949 | If mode is not specified, cycles through the available modes.""" |
|
940 | 950 | |
|
941 | 951 | if not mode: |
|
942 | 952 | new_idx = ( self.valid_modes.index(self.mode) + 1 ) % \ |
|
943 | 953 | len(self.valid_modes) |
|
944 | 954 | self.mode = self.valid_modes[new_idx] |
|
945 | 955 | elif mode not in self.valid_modes: |
|
946 | 956 | raise ValueError, 'Unrecognized mode in FormattedTB: <'+mode+'>\n'\ |
|
947 | 957 | 'Valid modes: '+str(self.valid_modes) |
|
948 | 958 | else: |
|
949 | 959 | self.mode = mode |
|
950 | 960 | # include variable details only in 'Verbose' mode |
|
951 | 961 | self.include_vars = (self.mode == self.valid_modes[2]) |
|
952 | 962 | |
|
953 | 963 | # some convenient shorcuts |
|
954 | 964 | def plain(self): |
|
955 | 965 | self.set_mode(self.valid_modes[0]) |
|
956 | 966 | |
|
957 | 967 | def context(self): |
|
958 | 968 | self.set_mode(self.valid_modes[1]) |
|
959 | 969 | |
|
960 | 970 | def verbose(self): |
|
961 | 971 | self.set_mode(self.valid_modes[2]) |
|
962 | 972 | |
|
963 | 973 | #---------------------------------------------------------------------------- |
|
964 | 974 | class AutoFormattedTB(FormattedTB): |
|
965 | 975 | """A traceback printer which can be called on the fly. |
|
966 | 976 | |
|
967 | 977 | It will find out about exceptions by itself. |
|
968 | 978 | |
|
969 | 979 | A brief example: |
|
970 | 980 | |
|
971 | 981 | AutoTB = AutoFormattedTB(mode = 'Verbose',color_scheme='Linux') |
|
972 | 982 | try: |
|
973 | 983 | ... |
|
974 | 984 | except: |
|
975 | 985 | AutoTB() # or AutoTB(out=logfile) where logfile is an open file object |
|
976 | 986 | """ |
|
977 | 987 | def __call__(self,etype=None,evalue=None,etb=None, |
|
978 | 988 | out=None,tb_offset=None): |
|
979 | 989 | """Print out a formatted exception traceback. |
|
980 | 990 | |
|
981 | 991 | Optional arguments: |
|
982 | 992 | - out: an open file-like object to direct output to. |
|
983 | 993 | |
|
984 | 994 | - tb_offset: the number of frames to skip over in the stack, on a |
|
985 | 995 | per-call basis (this overrides temporarily the instance's tb_offset |
|
986 | 996 | given at initialization time. """ |
|
987 | 997 | |
|
988 | 998 | if out is None: |
|
989 | 999 | out = Term.cerr |
|
990 | 1000 | Term.cout.flush() |
|
991 | 1001 | if tb_offset is not None: |
|
992 | 1002 | tb_offset, self.tb_offset = self.tb_offset, tb_offset |
|
993 | 1003 | print >> out, self.text(etype, evalue, etb) |
|
994 | 1004 | self.tb_offset = tb_offset |
|
995 | 1005 | else: |
|
996 | 1006 | print >> out, self.text(etype, evalue, etb) |
|
997 | 1007 | out.flush() |
|
998 | 1008 | try: |
|
999 | 1009 | self.debugger() |
|
1000 | 1010 | except KeyboardInterrupt: |
|
1001 | 1011 | print "\nKeyboardInterrupt" |
|
1002 | 1012 | |
|
1003 | 1013 | def text(self,etype=None,value=None,tb=None,context=5,mode=None): |
|
1004 | 1014 | if etype is None: |
|
1005 | 1015 | etype,value,tb = sys.exc_info() |
|
1006 | 1016 | self.tb = tb |
|
1007 | 1017 | return FormattedTB.text(self,etype,value,tb,context=5,mode=mode) |
|
1008 | 1018 | |
|
1009 | 1019 | #--------------------------------------------------------------------------- |
|
1010 | 1020 | # A simple class to preserve Nathan's original functionality. |
|
1011 | 1021 | class ColorTB(FormattedTB): |
|
1012 | 1022 | """Shorthand to initialize a FormattedTB in Linux colors mode.""" |
|
1013 | 1023 | def __init__(self,color_scheme='Linux',call_pdb=0): |
|
1014 | 1024 | FormattedTB.__init__(self,color_scheme=color_scheme, |
|
1015 | 1025 | call_pdb=call_pdb) |
|
1016 | 1026 | |
|
1017 | 1027 | #---------------------------------------------------------------------------- |
|
1018 | 1028 | # module testing (minimal) |
|
1019 | 1029 | if __name__ == "__main__": |
|
1020 | 1030 | def spam(c, (d, e)): |
|
1021 | 1031 | x = c + d |
|
1022 | 1032 | y = c * d |
|
1023 | 1033 | foo(x, y) |
|
1024 | 1034 | |
|
1025 | 1035 | def foo(a, b, bar=1): |
|
1026 | 1036 | eggs(a, b + bar) |
|
1027 | 1037 | |
|
1028 | 1038 | def eggs(f, g, z=globals()): |
|
1029 | 1039 | h = f + g |
|
1030 | 1040 | i = f - g |
|
1031 | 1041 | return h / i |
|
1032 | 1042 | |
|
1033 | 1043 | print '' |
|
1034 | 1044 | print '*** Before ***' |
|
1035 | 1045 | try: |
|
1036 | 1046 | print spam(1, (2, 3)) |
|
1037 | 1047 | except: |
|
1038 | 1048 | traceback.print_exc() |
|
1039 | 1049 | print '' |
|
1040 | 1050 | |
|
1041 | 1051 | handler = ColorTB() |
|
1042 | 1052 | print '*** ColorTB ***' |
|
1043 | 1053 | try: |
|
1044 | 1054 | print spam(1, (2, 3)) |
|
1045 | 1055 | except: |
|
1046 | 1056 | apply(handler, sys.exc_info() ) |
|
1047 | 1057 | print '' |
|
1048 | 1058 | |
|
1049 | 1059 | handler = VerboseTB() |
|
1050 | 1060 | print '*** VerboseTB ***' |
|
1051 | 1061 | try: |
|
1052 | 1062 | print spam(1, (2, 3)) |
|
1053 | 1063 | except: |
|
1054 | 1064 | apply(handler, sys.exc_info() ) |
|
1055 | 1065 | print '' |
|
1056 | 1066 |
@@ -1,92 +1,92 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """A class that manages the engines connection to the controller.""" |
|
4 | 4 | |
|
5 | 5 | __docformat__ = "restructuredtext en" |
|
6 | 6 | |
|
7 | 7 | #------------------------------------------------------------------------------- |
|
8 | 8 | # Copyright (C) 2008 The IPython Development Team |
|
9 | 9 | # |
|
10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | 11 | # the file COPYING, distributed as part of this software. |
|
12 | 12 | #------------------------------------------------------------------------------- |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #------------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | 18 | import os |
|
19 | 19 | import cPickle as pickle |
|
20 | 20 | |
|
21 | 21 | from twisted.python import log, failure |
|
22 | 22 | from twisted.internet import defer |
|
23 | 23 | |
|
24 | 24 | from IPython.kernel.fcutil import find_furl |
|
25 | 25 | from IPython.kernel.enginefc import IFCEngine |
|
26 | 26 | |
|
27 | 27 | #------------------------------------------------------------------------------- |
|
28 | 28 | # The ClientConnector class |
|
29 | 29 | #------------------------------------------------------------------------------- |
|
30 | 30 | |
|
31 | 31 | class EngineConnector(object): |
|
32 | 32 | """Manage an engines connection to a controller. |
|
33 | 33 | |
|
34 | 34 | This class takes a foolscap `Tub` and provides a `connect_to_controller` |
|
35 | 35 | method that will use the `Tub` to connect to a controller and register |
|
36 | 36 | the engine with the controller. |
|
37 | 37 | """ |
|
38 | 38 | |
|
39 | 39 | def __init__(self, tub): |
|
40 | 40 | self.tub = tub |
|
41 | 41 | |
|
42 | 42 | def connect_to_controller(self, engine_service, furl_or_file): |
|
43 | 43 | """ |
|
44 | 44 | Make a connection to a controller specified by a furl. |
|
45 | 45 | |
|
46 | 46 | This method takes an `IEngineBase` instance and a foolcap URL and uses |
|
47 | 47 | the `tub` attribute to make a connection to the controller. The |
|
48 | 48 | foolscap URL contains all the information needed to connect to the |
|
49 | 49 | controller, including the ip and port as well as any encryption and |
|
50 | 50 | authentication information needed for the connection. |
|
51 | 51 | |
|
52 | 52 | After getting a reference to the controller, this method calls the |
|
53 | 53 | `register_engine` method of the controller to actually register the |
|
54 | 54 | engine. |
|
55 | 55 | |
|
56 | 56 | :Parameters: |
|
57 | 57 | engine_service : IEngineBase |
|
58 | 58 | An instance of an `IEngineBase` implementer |
|
59 | 59 | furl_or_file : str |
|
60 | 60 | A furl or a filename containing a furl |
|
61 | 61 | """ |
|
62 | 62 | if not self.tub.running: |
|
63 | 63 | self.tub.startService() |
|
64 | 64 | self.engine_service = engine_service |
|
65 | 65 | self.engine_reference = IFCEngine(self.engine_service) |
|
66 | 66 | try: |
|
67 | 67 | self.furl = find_furl(furl_or_file) |
|
68 | 68 | except ValueError: |
|
69 | 69 | return defer.fail(failure.Failure()) |
|
70 | # return defer.fail(failure.Failure(ValueError('not a valid furl or furl file: %r' % furl_or_file))) | |
|
71 | d = self.tub.getReference(self.furl) | |
|
72 | d.addCallbacks(self._register, self._log_failure) | |
|
73 | return d | |
|
70 | else: | |
|
71 | d = self.tub.getReference(self.furl) | |
|
72 | d.addCallbacks(self._register, self._log_failure) | |
|
73 | return d | |
|
74 | 74 | |
|
75 | 75 | def _log_failure(self, reason): |
|
76 | 76 | log.err('EngineConnector: engine registration failed:') |
|
77 | 77 | log.err(reason) |
|
78 | 78 | return reason |
|
79 | 79 | |
|
80 | 80 | def _register(self, rr): |
|
81 | 81 | self.remote_ref = rr |
|
82 | 82 | # Now register myself with the controller |
|
83 | 83 | desired_id = self.engine_service.id |
|
84 | 84 | d = self.remote_ref.callRemote('register_engine', self.engine_reference, |
|
85 | 85 | desired_id, os.getpid(), pickle.dumps(self.engine_service.properties,2)) |
|
86 | 86 | return d.addCallbacks(self._reference_sent, self._log_failure) |
|
87 | 87 | |
|
88 | 88 | def _reference_sent(self, registration_dict): |
|
89 | 89 | self.engine_service.id = registration_dict['id'] |
|
90 | 90 | log.msg("engine registration succeeded, got id: %r" % self.engine_service.id) |
|
91 | 91 | return self.engine_service.id |
|
92 | 92 |
@@ -1,903 +1,906 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | # -*- test-case-name: IPython.kernel.tests.test_engineservice -*- |
|
3 | 3 | |
|
4 | 4 | """A Twisted Service Representation of the IPython core. |
|
5 | 5 | |
|
6 | 6 | The IPython Core exposed to the network is called the Engine. Its |
|
7 | 7 | representation in Twisted in the EngineService. Interfaces and adapters |
|
8 | 8 | are used to abstract out the details of the actual network protocol used. |
|
9 | 9 | The EngineService is an Engine that knows nothing about the actual protocol |
|
10 | 10 | used. |
|
11 | 11 | |
|
12 | 12 | The EngineService is exposed with various network protocols in modules like: |
|
13 | 13 | |
|
14 | 14 | enginepb.py |
|
15 | 15 | enginevanilla.py |
|
16 | 16 | |
|
17 | 17 | As of 12/12/06 the classes in this module have been simplified greatly. It was |
|
18 | 18 | felt that we had over-engineered things. To improve the maintainability of the |
|
19 | 19 | code we have taken out the ICompleteEngine interface and the completeEngine |
|
20 | 20 | method that automatically added methods to engines. |
|
21 | 21 | |
|
22 | 22 | """ |
|
23 | 23 | |
|
24 | 24 | __docformat__ = "restructuredtext en" |
|
25 | 25 | |
|
26 | 26 | #------------------------------------------------------------------------------- |
|
27 | 27 | # Copyright (C) 2008 The IPython Development Team |
|
28 | 28 | # |
|
29 | 29 | # Distributed under the terms of the BSD License. The full license is in |
|
30 | 30 | # the file COPYING, distributed as part of this software. |
|
31 | 31 | #------------------------------------------------------------------------------- |
|
32 | 32 | |
|
33 | 33 | #------------------------------------------------------------------------------- |
|
34 | 34 | # Imports |
|
35 | 35 | #------------------------------------------------------------------------------- |
|
36 | 36 | |
|
37 | # Tell nose to skip the testing of this module | |
|
38 | __test__ = {} | |
|
39 | ||
|
37 | 40 | import os, sys, copy |
|
38 | 41 | import cPickle as pickle |
|
39 | 42 | from new import instancemethod |
|
40 | 43 | |
|
41 | 44 | from twisted.application import service |
|
42 | 45 | from twisted.internet import defer, reactor |
|
43 | 46 | from twisted.python import log, failure, components |
|
44 | 47 | import zope.interface as zi |
|
45 | 48 | |
|
46 | 49 | from IPython.kernel.core.interpreter import Interpreter |
|
47 | 50 | from IPython.kernel import newserialized, error, util |
|
48 | 51 | from IPython.kernel.util import printer |
|
49 | 52 | from IPython.kernel.twistedutil import gatherBoth, DeferredList |
|
50 | 53 | from IPython.kernel import codeutil |
|
51 | 54 | |
|
52 | 55 | |
|
53 | 56 | #------------------------------------------------------------------------------- |
|
54 | 57 | # Interface specification for the Engine |
|
55 | 58 | #------------------------------------------------------------------------------- |
|
56 | 59 | |
|
57 | 60 | class IEngineCore(zi.Interface): |
|
58 | 61 | """The minimal required interface for the IPython Engine. |
|
59 | 62 | |
|
60 | 63 | This interface provides a formal specification of the IPython core. |
|
61 | 64 | All these methods should return deferreds regardless of what side of a |
|
62 | 65 | network connection they are on. |
|
63 | 66 | |
|
64 | 67 | In general, this class simply wraps a shell class and wraps its return |
|
65 | 68 | values as Deferred objects. If the underlying shell class method raises |
|
66 | 69 | an exception, this class should convert it to a twisted.failure.Failure |
|
67 | 70 | that will be propagated along the Deferred's errback chain. |
|
68 | 71 | |
|
69 | 72 | In addition, Failures are aggressive. By this, we mean that if a method |
|
70 | 73 | is performing multiple actions (like pulling multiple object) if any |
|
71 | 74 | single one fails, the entire method will fail with that Failure. It is |
|
72 | 75 | all or nothing. |
|
73 | 76 | """ |
|
74 | 77 | |
|
75 | 78 | id = zi.interface.Attribute("the id of the Engine object") |
|
76 | 79 | properties = zi.interface.Attribute("A dict of properties of the Engine") |
|
77 | 80 | |
|
78 | 81 | def execute(lines): |
|
79 | 82 | """Execute lines of Python code. |
|
80 | 83 | |
|
81 | 84 | Returns a dictionary with keys (id, number, stdin, stdout, stderr) |
|
82 | 85 | upon success. |
|
83 | 86 | |
|
84 | 87 | Returns a failure object if the execution of lines raises an exception. |
|
85 | 88 | """ |
|
86 | 89 | |
|
87 | 90 | def push(namespace): |
|
88 | 91 | """Push dict namespace into the user's namespace. |
|
89 | 92 | |
|
90 | 93 | Returns a deferred to None or a failure. |
|
91 | 94 | """ |
|
92 | 95 | |
|
93 | 96 | def pull(keys): |
|
94 | 97 | """Pulls values out of the user's namespace by keys. |
|
95 | 98 | |
|
96 | 99 | Returns a deferred to a tuple objects or a single object. |
|
97 | 100 | |
|
98 | 101 | Raises NameError if any one of objects doess not exist. |
|
99 | 102 | """ |
|
100 | 103 | |
|
101 | 104 | def push_function(namespace): |
|
102 | 105 | """Push a dict of key, function pairs into the user's namespace. |
|
103 | 106 | |
|
104 | 107 | Returns a deferred to None or a failure.""" |
|
105 | 108 | |
|
106 | 109 | def pull_function(keys): |
|
107 | 110 | """Pulls functions out of the user's namespace by keys. |
|
108 | 111 | |
|
109 | 112 | Returns a deferred to a tuple of functions or a single function. |
|
110 | 113 | |
|
111 | 114 | Raises NameError if any one of the functions does not exist. |
|
112 | 115 | """ |
|
113 | 116 | |
|
114 | 117 | def get_result(i=None): |
|
115 | 118 | """Get the stdin/stdout/stderr of command i. |
|
116 | 119 | |
|
117 | 120 | Returns a deferred to a dict with keys |
|
118 | 121 | (id, number, stdin, stdout, stderr). |
|
119 | 122 | |
|
120 | 123 | Raises IndexError if command i does not exist. |
|
121 | 124 | Raises TypeError if i in not an int. |
|
122 | 125 | """ |
|
123 | 126 | |
|
124 | 127 | def reset(): |
|
125 | 128 | """Reset the shell. |
|
126 | 129 | |
|
127 | 130 | This clears the users namespace. Won't cause modules to be |
|
128 | 131 | reloaded. Should also re-initialize certain variables like id. |
|
129 | 132 | """ |
|
130 | 133 | |
|
131 | 134 | def kill(): |
|
132 | 135 | """Kill the engine by stopping the reactor.""" |
|
133 | 136 | |
|
134 | 137 | def keys(): |
|
135 | 138 | """Return the top level variables in the users namspace. |
|
136 | 139 | |
|
137 | 140 | Returns a deferred to a dict.""" |
|
138 | 141 | |
|
139 | 142 | |
|
140 | 143 | class IEngineSerialized(zi.Interface): |
|
141 | 144 | """Push/Pull methods that take Serialized objects. |
|
142 | 145 | |
|
143 | 146 | All methods should return deferreds. |
|
144 | 147 | """ |
|
145 | 148 | |
|
146 | 149 | def push_serialized(namespace): |
|
147 | 150 | """Push a dict of keys and Serialized objects into the user's namespace.""" |
|
148 | 151 | |
|
149 | 152 | def pull_serialized(keys): |
|
150 | 153 | """Pull objects by key from the user's namespace as Serialized. |
|
151 | 154 | |
|
152 | 155 | Returns a list of or one Serialized. |
|
153 | 156 | |
|
154 | 157 | Raises NameError is any one of the objects does not exist. |
|
155 | 158 | """ |
|
156 | 159 | |
|
157 | 160 | |
|
158 | 161 | class IEngineProperties(zi.Interface): |
|
159 | 162 | """Methods for access to the properties object of an Engine""" |
|
160 | 163 | |
|
161 | 164 | properties = zi.Attribute("A StrictDict object, containing the properties") |
|
162 | 165 | |
|
163 | 166 | def set_properties(properties): |
|
164 | 167 | """set properties by key and value""" |
|
165 | 168 | |
|
166 | 169 | def get_properties(keys=None): |
|
167 | 170 | """get a list of properties by `keys`, if no keys specified, get all""" |
|
168 | 171 | |
|
169 | 172 | def del_properties(keys): |
|
170 | 173 | """delete properties by `keys`""" |
|
171 | 174 | |
|
172 | 175 | def has_properties(keys): |
|
173 | 176 | """get a list of bool values for whether `properties` has `keys`""" |
|
174 | 177 | |
|
175 | 178 | def clear_properties(): |
|
176 | 179 | """clear the properties dict""" |
|
177 | 180 | |
|
178 | 181 | class IEngineBase(IEngineCore, IEngineSerialized, IEngineProperties): |
|
179 | 182 | """The basic engine interface that EngineService will implement. |
|
180 | 183 | |
|
181 | 184 | This exists so it is easy to specify adapters that adapt to and from the |
|
182 | 185 | API that the basic EngineService implements. |
|
183 | 186 | """ |
|
184 | 187 | pass |
|
185 | 188 | |
|
186 | 189 | class IEngineQueued(IEngineBase): |
|
187 | 190 | """Interface for adding a queue to an IEngineBase. |
|
188 | 191 | |
|
189 | 192 | This interface extends the IEngineBase interface to add methods for managing |
|
190 | 193 | the engine's queue. The implicit details of this interface are that the |
|
191 | 194 | execution of all methods declared in IEngineBase should appropriately be |
|
192 | 195 | put through a queue before execution. |
|
193 | 196 | |
|
194 | 197 | All methods should return deferreds. |
|
195 | 198 | """ |
|
196 | 199 | |
|
197 | 200 | def clear_queue(): |
|
198 | 201 | """Clear the queue.""" |
|
199 | 202 | |
|
200 | 203 | def queue_status(): |
|
201 | 204 | """Get the queued and pending commands in the queue.""" |
|
202 | 205 | |
|
203 | 206 | def register_failure_observer(obs): |
|
204 | 207 | """Register an observer of pending Failures. |
|
205 | 208 | |
|
206 | 209 | The observer must implement IFailureObserver. |
|
207 | 210 | """ |
|
208 | 211 | |
|
209 | 212 | def unregister_failure_observer(obs): |
|
210 | 213 | """Unregister an observer of pending Failures.""" |
|
211 | 214 | |
|
212 | 215 | |
|
213 | 216 | class IEngineThreaded(zi.Interface): |
|
214 | 217 | """A place holder for threaded commands. |
|
215 | 218 | |
|
216 | 219 | All methods should return deferreds. |
|
217 | 220 | """ |
|
218 | 221 | pass |
|
219 | 222 | |
|
220 | 223 | |
|
221 | 224 | #------------------------------------------------------------------------------- |
|
222 | 225 | # Functions and classes to implement the EngineService |
|
223 | 226 | #------------------------------------------------------------------------------- |
|
224 | 227 | |
|
225 | 228 | |
|
226 | 229 | class StrictDict(dict): |
|
227 | 230 | """This is a strict copying dictionary for use as the interface to the |
|
228 | 231 | properties of an Engine. |
|
229 | 232 | |
|
230 | 233 | :IMPORTANT: |
|
231 | 234 | This object copies the values you set to it, and returns copies to you |
|
232 | 235 | when you request them. The only way to change properties os explicitly |
|
233 | 236 | through the setitem and getitem of the dictionary interface. |
|
234 | 237 | |
|
235 | 238 | Example: |
|
236 | 239 | >>> e = get_engine(id) |
|
237 | 240 | >>> L = [1,2,3] |
|
238 | 241 | >>> e.properties['L'] = L |
|
239 | 242 | >>> L == e.properties['L'] |
|
240 | 243 | True |
|
241 | 244 | >>> L.append(99) |
|
242 | 245 | >>> L == e.properties['L'] |
|
243 | 246 | False |
|
244 | 247 | |
|
245 | 248 | Note that getitem copies, so calls to methods of objects do not affect |
|
246 | 249 | the properties, as seen here: |
|
247 | 250 | |
|
248 | 251 | >>> e.properties[1] = range(2) |
|
249 | 252 | >>> print e.properties[1] |
|
250 | 253 | [0, 1] |
|
251 | 254 | >>> e.properties[1].append(2) |
|
252 | 255 | >>> print e.properties[1] |
|
253 | 256 | [0, 1] |
|
254 | 257 | """ |
|
255 | 258 | def __init__(self, *args, **kwargs): |
|
256 | 259 | dict.__init__(self, *args, **kwargs) |
|
257 | 260 | self.modified = True |
|
258 | 261 | |
|
259 | 262 | def __getitem__(self, key): |
|
260 | 263 | return copy.deepcopy(dict.__getitem__(self, key)) |
|
261 | 264 | |
|
262 | 265 | def __setitem__(self, key, value): |
|
263 | 266 | # check if this entry is valid for transport around the network |
|
264 | 267 | # and copying |
|
265 | 268 | try: |
|
266 | 269 | pickle.dumps(key, 2) |
|
267 | 270 | pickle.dumps(value, 2) |
|
268 | 271 | newvalue = copy.deepcopy(value) |
|
269 | except: | |
|
270 | raise error.InvalidProperty(value) | |
|
272 | except Exception, e: | |
|
273 | raise error.InvalidProperty("can't be a value: %r" % value) | |
|
271 | 274 | dict.__setitem__(self, key, newvalue) |
|
272 | 275 | self.modified = True |
|
273 | 276 | |
|
274 | 277 | def __delitem__(self, key): |
|
275 | 278 | dict.__delitem__(self, key) |
|
276 | 279 | self.modified = True |
|
277 | 280 | |
|
278 | 281 | def update(self, dikt): |
|
279 | 282 | for k,v in dikt.iteritems(): |
|
280 | 283 | self[k] = v |
|
281 | 284 | |
|
282 | 285 | def pop(self, key): |
|
283 | 286 | self.modified = True |
|
284 | 287 | return dict.pop(self, key) |
|
285 | 288 | |
|
286 | 289 | def popitem(self): |
|
287 | 290 | self.modified = True |
|
288 | 291 | return dict.popitem(self) |
|
289 | 292 | |
|
290 | 293 | def clear(self): |
|
291 | 294 | self.modified = True |
|
292 | 295 | dict.clear(self) |
|
293 | 296 | |
|
294 | 297 | def subDict(self, *keys): |
|
295 | 298 | d = {} |
|
296 | 299 | for key in keys: |
|
297 | 300 | d[key] = self[key] |
|
298 | 301 | return d |
|
299 | 302 | |
|
300 | 303 | |
|
301 | 304 | |
|
302 | 305 | class EngineAPI(object): |
|
303 | 306 | """This is the object through which the user can edit the `properties` |
|
304 | 307 | attribute of an Engine. |
|
305 | 308 | The Engine Properties object copies all object in and out of itself. |
|
306 | 309 | See the EngineProperties object for details. |
|
307 | 310 | """ |
|
308 | 311 | _fix=False |
|
309 | 312 | def __init__(self, id): |
|
310 | 313 | self.id = id |
|
311 | 314 | self.properties = StrictDict() |
|
312 | 315 | self._fix=True |
|
313 | 316 | |
|
314 | 317 | def __setattr__(self, k,v): |
|
315 | 318 | if self._fix: |
|
316 | 319 | raise error.KernelError("I am protected!") |
|
317 | 320 | else: |
|
318 | 321 | object.__setattr__(self, k, v) |
|
319 | 322 | |
|
320 | 323 | def __delattr__(self, key): |
|
321 | 324 | raise error.KernelError("I am protected!") |
|
322 | 325 | |
|
323 | 326 | |
|
324 | 327 | _apiDict = {} |
|
325 | 328 | |
|
326 | 329 | def get_engine(id): |
|
327 | 330 | """Get the Engine API object, whcih currently just provides the properties |
|
328 | 331 | object, by ID""" |
|
329 | 332 | global _apiDict |
|
330 | 333 | if not _apiDict.get(id): |
|
331 | 334 | _apiDict[id] = EngineAPI(id) |
|
332 | 335 | return _apiDict[id] |
|
333 | 336 | |
|
334 | 337 | def drop_engine(id): |
|
335 | 338 | """remove an engine""" |
|
336 | 339 | global _apiDict |
|
337 | 340 | if _apiDict.has_key(id): |
|
338 | 341 | del _apiDict[id] |
|
339 | 342 | |
|
340 | 343 | class EngineService(object, service.Service): |
|
341 | 344 | """Adapt a IPython shell into a IEngine implementing Twisted Service.""" |
|
342 | 345 | |
|
343 | 346 | zi.implements(IEngineBase) |
|
344 | 347 | name = 'EngineService' |
|
345 | 348 | |
|
346 | 349 | def __init__(self, shellClass=Interpreter, mpi=None): |
|
347 | 350 | """Create an EngineService. |
|
348 | 351 | |
|
349 | 352 | shellClass: something that implements IInterpreter or core1 |
|
350 | 353 | mpi: an mpi module that has rank and size attributes |
|
351 | 354 | """ |
|
352 | 355 | self.shellClass = shellClass |
|
353 | 356 | self.shell = self.shellClass() |
|
354 | 357 | self.mpi = mpi |
|
355 | 358 | self.id = None |
|
356 | 359 | self.properties = get_engine(self.id).properties |
|
357 | 360 | if self.mpi is not None: |
|
358 | 361 | log.msg("MPI started with rank = %i and size = %i" % |
|
359 | 362 | (self.mpi.rank, self.mpi.size)) |
|
360 | 363 | self.id = self.mpi.rank |
|
361 | 364 | self._seedNamespace() |
|
362 | 365 | |
|
363 | 366 | # Make id a property so that the shell can get the updated id |
|
364 | 367 | |
|
365 | 368 | def _setID(self, id): |
|
366 | 369 | self._id = id |
|
367 | 370 | self.properties = get_engine(id).properties |
|
368 | 371 | self.shell.push({'id': id}) |
|
369 | 372 | |
|
370 | 373 | def _getID(self): |
|
371 | 374 | return self._id |
|
372 | 375 | |
|
373 | 376 | id = property(_getID, _setID) |
|
374 | 377 | |
|
375 | 378 | def _seedNamespace(self): |
|
376 | 379 | self.shell.push({'mpi': self.mpi, 'id' : self.id}) |
|
377 | 380 | |
|
378 | 381 | def executeAndRaise(self, msg, callable, *args, **kwargs): |
|
379 | 382 | """Call a method of self.shell and wrap any exception.""" |
|
380 | 383 | d = defer.Deferred() |
|
381 | 384 | try: |
|
382 | 385 | result = callable(*args, **kwargs) |
|
383 | 386 | except: |
|
384 | 387 | # This gives the following: |
|
385 | 388 | # et=exception class |
|
386 | 389 | # ev=exception class instance |
|
387 | 390 | # tb=traceback object |
|
388 | 391 | et,ev,tb = sys.exc_info() |
|
389 | 392 | # This call adds attributes to the exception value |
|
390 | 393 | et,ev,tb = self.shell.formatTraceback(et,ev,tb,msg) |
|
391 | 394 | # Add another attribute |
|
392 | 395 | ev._ipython_engine_info = msg |
|
393 | 396 | f = failure.Failure(ev,et,None) |
|
394 | 397 | d.errback(f) |
|
395 | 398 | else: |
|
396 | 399 | d.callback(result) |
|
397 | 400 | |
|
398 | 401 | return d |
|
399 | 402 | |
|
400 | 403 | |
|
401 | 404 | # The IEngine methods. See the interface for documentation. |
|
402 | 405 | |
|
403 | 406 | def execute(self, lines): |
|
404 | 407 | msg = {'engineid':self.id, |
|
405 | 408 | 'method':'execute', |
|
406 | 409 | 'args':[lines]} |
|
407 | 410 | d = self.executeAndRaise(msg, self.shell.execute, lines) |
|
408 | 411 | d.addCallback(self.addIDToResult) |
|
409 | 412 | return d |
|
410 | 413 | |
|
411 | 414 | def addIDToResult(self, result): |
|
412 | 415 | result['id'] = self.id |
|
413 | 416 | return result |
|
414 | 417 | |
|
415 | 418 | def push(self, namespace): |
|
416 | 419 | msg = {'engineid':self.id, |
|
417 | 420 | 'method':'push', |
|
418 | 421 | 'args':[repr(namespace.keys())]} |
|
419 | 422 | d = self.executeAndRaise(msg, self.shell.push, namespace) |
|
420 | 423 | return d |
|
421 | 424 | |
|
422 | 425 | def pull(self, keys): |
|
423 | 426 | msg = {'engineid':self.id, |
|
424 | 427 | 'method':'pull', |
|
425 | 428 | 'args':[repr(keys)]} |
|
426 | 429 | d = self.executeAndRaise(msg, self.shell.pull, keys) |
|
427 | 430 | return d |
|
428 | 431 | |
|
429 | 432 | def push_function(self, namespace): |
|
430 | 433 | msg = {'engineid':self.id, |
|
431 | 434 | 'method':'push_function', |
|
432 | 435 | 'args':[repr(namespace.keys())]} |
|
433 | 436 | d = self.executeAndRaise(msg, self.shell.push_function, namespace) |
|
434 | 437 | return d |
|
435 | 438 | |
|
436 | 439 | def pull_function(self, keys): |
|
437 | 440 | msg = {'engineid':self.id, |
|
438 | 441 | 'method':'pull_function', |
|
439 | 442 | 'args':[repr(keys)]} |
|
440 | 443 | d = self.executeAndRaise(msg, self.shell.pull_function, keys) |
|
441 | 444 | return d |
|
442 | 445 | |
|
443 | 446 | def get_result(self, i=None): |
|
444 | 447 | msg = {'engineid':self.id, |
|
445 | 448 | 'method':'get_result', |
|
446 | 449 | 'args':[repr(i)]} |
|
447 | 450 | d = self.executeAndRaise(msg, self.shell.getCommand, i) |
|
448 | 451 | d.addCallback(self.addIDToResult) |
|
449 | 452 | return d |
|
450 | 453 | |
|
451 | 454 | def reset(self): |
|
452 | 455 | msg = {'engineid':self.id, |
|
453 | 456 | 'method':'reset', |
|
454 | 457 | 'args':[]} |
|
455 | 458 | del self.shell |
|
456 | 459 | self.shell = self.shellClass() |
|
457 | 460 | self.properties.clear() |
|
458 | 461 | d = self.executeAndRaise(msg, self._seedNamespace) |
|
459 | 462 | return d |
|
460 | 463 | |
|
461 | 464 | def kill(self): |
|
462 | 465 | drop_engine(self.id) |
|
463 | 466 | try: |
|
464 | 467 | reactor.stop() |
|
465 | 468 | except RuntimeError: |
|
466 | 469 | log.msg('The reactor was not running apparently.') |
|
467 | 470 | return defer.fail() |
|
468 | 471 | else: |
|
469 | 472 | return defer.succeed(None) |
|
470 | 473 | |
|
471 | 474 | def keys(self): |
|
472 | 475 | """Return a list of variables names in the users top level namespace. |
|
473 | 476 | |
|
474 | 477 | This used to return a dict of all the keys/repr(values) in the |
|
475 | 478 | user's namespace. This was too much info for the ControllerService |
|
476 | 479 | to handle so it is now just a list of keys. |
|
477 | 480 | """ |
|
478 | 481 | |
|
479 | 482 | remotes = [] |
|
480 | 483 | for k in self.shell.user_ns.iterkeys(): |
|
481 | 484 | if k not in ['__name__', '_ih', '_oh', '__builtins__', |
|
482 | 485 | 'In', 'Out', '_', '__', '___', '__IP', 'input', 'raw_input']: |
|
483 | 486 | remotes.append(k) |
|
484 | 487 | return defer.succeed(remotes) |
|
485 | 488 | |
|
486 | 489 | def set_properties(self, properties): |
|
487 | 490 | msg = {'engineid':self.id, |
|
488 | 491 | 'method':'set_properties', |
|
489 | 492 | 'args':[repr(properties.keys())]} |
|
490 | 493 | return self.executeAndRaise(msg, self.properties.update, properties) |
|
491 | 494 | |
|
492 | 495 | def get_properties(self, keys=None): |
|
493 | 496 | msg = {'engineid':self.id, |
|
494 | 497 | 'method':'get_properties', |
|
495 | 498 | 'args':[repr(keys)]} |
|
496 | 499 | if keys is None: |
|
497 | 500 | keys = self.properties.keys() |
|
498 | 501 | return self.executeAndRaise(msg, self.properties.subDict, *keys) |
|
499 | 502 | |
|
500 | 503 | def _doDel(self, keys): |
|
501 | 504 | for key in keys: |
|
502 | 505 | del self.properties[key] |
|
503 | 506 | |
|
504 | 507 | def del_properties(self, keys): |
|
505 | 508 | msg = {'engineid':self.id, |
|
506 | 509 | 'method':'del_properties', |
|
507 | 510 | 'args':[repr(keys)]} |
|
508 | 511 | return self.executeAndRaise(msg, self._doDel, keys) |
|
509 | 512 | |
|
510 | 513 | def _doHas(self, keys): |
|
511 | 514 | return [self.properties.has_key(key) for key in keys] |
|
512 | 515 | |
|
513 | 516 | def has_properties(self, keys): |
|
514 | 517 | msg = {'engineid':self.id, |
|
515 | 518 | 'method':'has_properties', |
|
516 | 519 | 'args':[repr(keys)]} |
|
517 | 520 | return self.executeAndRaise(msg, self._doHas, keys) |
|
518 | 521 | |
|
519 | 522 | def clear_properties(self): |
|
520 | 523 | msg = {'engineid':self.id, |
|
521 | 524 | 'method':'clear_properties', |
|
522 | 525 | 'args':[]} |
|
523 | 526 | return self.executeAndRaise(msg, self.properties.clear) |
|
524 | 527 | |
|
525 | 528 | def push_serialized(self, sNamespace): |
|
526 | 529 | msg = {'engineid':self.id, |
|
527 | 530 | 'method':'push_serialized', |
|
528 | 531 | 'args':[repr(sNamespace.keys())]} |
|
529 | 532 | ns = {} |
|
530 | 533 | for k,v in sNamespace.iteritems(): |
|
531 | 534 | try: |
|
532 | 535 | unserialized = newserialized.IUnSerialized(v) |
|
533 | 536 | ns[k] = unserialized.getObject() |
|
534 | 537 | except: |
|
535 | 538 | return defer.fail() |
|
536 | 539 | return self.executeAndRaise(msg, self.shell.push, ns) |
|
537 | 540 | |
|
538 | 541 | def pull_serialized(self, keys): |
|
539 | 542 | msg = {'engineid':self.id, |
|
540 | 543 | 'method':'pull_serialized', |
|
541 | 544 | 'args':[repr(keys)]} |
|
542 | 545 | if isinstance(keys, str): |
|
543 | 546 | keys = [keys] |
|
544 | 547 | if len(keys)==1: |
|
545 | 548 | d = self.executeAndRaise(msg, self.shell.pull, keys) |
|
546 | 549 | d.addCallback(newserialized.serialize) |
|
547 | 550 | return d |
|
548 | 551 | elif len(keys)>1: |
|
549 | 552 | d = self.executeAndRaise(msg, self.shell.pull, keys) |
|
550 | 553 | @d.addCallback |
|
551 | 554 | def packThemUp(values): |
|
552 | 555 | serials = [] |
|
553 | 556 | for v in values: |
|
554 | 557 | try: |
|
555 | 558 | serials.append(newserialized.serialize(v)) |
|
556 | 559 | except: |
|
557 | 560 | return defer.fail(failure.Failure()) |
|
558 | 561 | return serials |
|
559 | 562 | return packThemUp |
|
560 | 563 | |
|
561 | 564 | |
|
562 | 565 | def queue(methodToQueue): |
|
563 | 566 | def queuedMethod(this, *args, **kwargs): |
|
564 | 567 | name = methodToQueue.__name__ |
|
565 | 568 | return this.submitCommand(Command(name, *args, **kwargs)) |
|
566 | 569 | return queuedMethod |
|
567 | 570 | |
|
568 | 571 | class QueuedEngine(object): |
|
569 | 572 | """Adapt an IEngineBase to an IEngineQueued by wrapping it. |
|
570 | 573 | |
|
571 | 574 | The resulting object will implement IEngineQueued which extends |
|
572 | 575 | IEngineCore which extends (IEngineBase, IEngineSerialized). |
|
573 | 576 | |
|
574 | 577 | This seems like the best way of handling it, but I am not sure. The |
|
575 | 578 | other option is to have the various base interfaces be used like |
|
576 | 579 | mix-in intefaces. The problem I have with this is adpatation is |
|
577 | 580 | more difficult and complicated because there can be can multiple |
|
578 | 581 | original and final Interfaces. |
|
579 | 582 | """ |
|
580 | 583 | |
|
581 | 584 | zi.implements(IEngineQueued) |
|
582 | 585 | |
|
583 | 586 | def __init__(self, engine): |
|
584 | 587 | """Create a QueuedEngine object from an engine |
|
585 | 588 | |
|
586 | 589 | engine: An implementor of IEngineCore and IEngineSerialized |
|
587 | 590 | keepUpToDate: whether to update the remote status when the |
|
588 | 591 | queue is empty. Defaults to False. |
|
589 | 592 | """ |
|
590 | 593 | |
|
591 | 594 | # This is the right way to do these tests rather than |
|
592 | 595 | # IEngineCore in list(zi.providedBy(engine)) which will only |
|
593 | 596 | # picks of the interfaces that are directly declared by engine. |
|
594 | 597 | assert IEngineBase.providedBy(engine), \ |
|
595 | 598 | "engine passed to QueuedEngine doesn't provide IEngineBase" |
|
596 | 599 | |
|
597 | 600 | self.engine = engine |
|
598 | 601 | self.id = engine.id |
|
599 | 602 | self.queued = [] |
|
600 | 603 | self.history = {} |
|
601 | 604 | self.engineStatus = {} |
|
602 | 605 | self.currentCommand = None |
|
603 | 606 | self.failureObservers = [] |
|
604 | 607 | |
|
605 | 608 | def _get_properties(self): |
|
606 | 609 | return self.engine.properties |
|
607 | 610 | |
|
608 | 611 | properties = property(_get_properties, lambda self, _: None) |
|
609 | 612 | # Queue management methods. You should not call these directly |
|
610 | 613 | |
|
611 | 614 | def submitCommand(self, cmd): |
|
612 | 615 | """Submit command to queue.""" |
|
613 | 616 | |
|
614 | 617 | d = defer.Deferred() |
|
615 | 618 | cmd.setDeferred(d) |
|
616 | 619 | if self.currentCommand is not None: |
|
617 | 620 | if self.currentCommand.finished: |
|
618 | 621 | # log.msg("Running command immediately: %r" % cmd) |
|
619 | 622 | self.currentCommand = cmd |
|
620 | 623 | self.runCurrentCommand() |
|
621 | 624 | else: # command is still running |
|
622 | 625 | # log.msg("Command is running: %r" % self.currentCommand) |
|
623 | 626 | # log.msg("Queueing: %r" % cmd) |
|
624 | 627 | self.queued.append(cmd) |
|
625 | 628 | else: |
|
626 | 629 | # log.msg("No current commands, running: %r" % cmd) |
|
627 | 630 | self.currentCommand = cmd |
|
628 | 631 | self.runCurrentCommand() |
|
629 | 632 | return d |
|
630 | 633 | |
|
631 | 634 | def runCurrentCommand(self): |
|
632 | 635 | """Run current command.""" |
|
633 | 636 | |
|
634 | 637 | cmd = self.currentCommand |
|
635 | 638 | f = getattr(self.engine, cmd.remoteMethod, None) |
|
636 | 639 | if f: |
|
637 | 640 | d = f(*cmd.args, **cmd.kwargs) |
|
638 | 641 | if cmd.remoteMethod is 'execute': |
|
639 | 642 | d.addCallback(self.saveResult) |
|
640 | 643 | d.addCallback(self.finishCommand) |
|
641 | 644 | d.addErrback(self.abortCommand) |
|
642 | 645 | else: |
|
643 | 646 | return defer.fail(AttributeError(cmd.remoteMethod)) |
|
644 | 647 | |
|
645 | 648 | def _flushQueue(self): |
|
646 | 649 | """Pop next command in queue and run it.""" |
|
647 | 650 | |
|
648 | 651 | if len(self.queued) > 0: |
|
649 | 652 | self.currentCommand = self.queued.pop(0) |
|
650 | 653 | self.runCurrentCommand() |
|
651 | 654 | |
|
652 | 655 | def saveResult(self, result): |
|
653 | 656 | """Put the result in the history.""" |
|
654 | 657 | self.history[result['number']] = result |
|
655 | 658 | return result |
|
656 | 659 | |
|
657 | 660 | def finishCommand(self, result): |
|
658 | 661 | """Finish currrent command.""" |
|
659 | 662 | |
|
660 | 663 | # The order of these commands is absolutely critical. |
|
661 | 664 | self.currentCommand.handleResult(result) |
|
662 | 665 | self.currentCommand.finished = True |
|
663 | 666 | self._flushQueue() |
|
664 | 667 | return result |
|
665 | 668 | |
|
666 | 669 | def abortCommand(self, reason): |
|
667 | 670 | """Abort current command. |
|
668 | 671 | |
|
669 | 672 | This eats the Failure but first passes it onto the Deferred that the |
|
670 | 673 | user has. |
|
671 | 674 | |
|
672 | 675 | It also clear out the queue so subsequence commands don't run. |
|
673 | 676 | """ |
|
674 | 677 | |
|
675 | 678 | # The order of these 3 commands is absolutely critical. The currentCommand |
|
676 | 679 | # must first be marked as finished BEFORE the queue is cleared and before |
|
677 | 680 | # the current command is sent the failure. |
|
678 | 681 | # Also, the queue must be cleared BEFORE the current command is sent the Failure |
|
679 | 682 | # otherwise the errback chain could trigger new commands to be added to the |
|
680 | 683 | # queue before we clear it. We should clear ONLY the commands that were in |
|
681 | 684 | # the queue when the error occured. |
|
682 | 685 | self.currentCommand.finished = True |
|
683 | 686 | s = "%r %r %r" % (self.currentCommand.remoteMethod, self.currentCommand.args, self.currentCommand.kwargs) |
|
684 | 687 | self.clear_queue(msg=s) |
|
685 | 688 | self.currentCommand.handleError(reason) |
|
686 | 689 | |
|
687 | 690 | return None |
|
688 | 691 | |
|
689 | 692 | #--------------------------------------------------------------------------- |
|
690 | 693 | # IEngineCore methods |
|
691 | 694 | #--------------------------------------------------------------------------- |
|
692 | 695 | |
|
693 | 696 | @queue |
|
694 | 697 | def execute(self, lines): |
|
695 | 698 | pass |
|
696 | 699 | |
|
697 | 700 | @queue |
|
698 | 701 | def push(self, namespace): |
|
699 | 702 | pass |
|
700 | 703 | |
|
701 | 704 | @queue |
|
702 | 705 | def pull(self, keys): |
|
703 | 706 | pass |
|
704 | 707 | |
|
705 | 708 | @queue |
|
706 | 709 | def push_function(self, namespace): |
|
707 | 710 | pass |
|
708 | 711 | |
|
709 | 712 | @queue |
|
710 | 713 | def pull_function(self, keys): |
|
711 | 714 | pass |
|
712 | 715 | |
|
713 | 716 | def get_result(self, i=None): |
|
714 | 717 | if i is None: |
|
715 | 718 | i = max(self.history.keys()+[None]) |
|
716 | 719 | |
|
717 | 720 | cmd = self.history.get(i, None) |
|
718 | 721 | # Uncomment this line to disable chaching of results |
|
719 | 722 | #cmd = None |
|
720 | 723 | if cmd is None: |
|
721 | 724 | return self.submitCommand(Command('get_result', i)) |
|
722 | 725 | else: |
|
723 | 726 | return defer.succeed(cmd) |
|
724 | 727 | |
|
725 | 728 | def reset(self): |
|
726 | 729 | self.clear_queue() |
|
727 | 730 | self.history = {} # reset the cache - I am not sure we should do this |
|
728 | 731 | return self.submitCommand(Command('reset')) |
|
729 | 732 | |
|
730 | 733 | def kill(self): |
|
731 | 734 | self.clear_queue() |
|
732 | 735 | return self.submitCommand(Command('kill')) |
|
733 | 736 | |
|
734 | 737 | @queue |
|
735 | 738 | def keys(self): |
|
736 | 739 | pass |
|
737 | 740 | |
|
738 | 741 | #--------------------------------------------------------------------------- |
|
739 | 742 | # IEngineSerialized methods |
|
740 | 743 | #--------------------------------------------------------------------------- |
|
741 | 744 | |
|
742 | 745 | @queue |
|
743 | 746 | def push_serialized(self, namespace): |
|
744 | 747 | pass |
|
745 | 748 | |
|
746 | 749 | @queue |
|
747 | 750 | def pull_serialized(self, keys): |
|
748 | 751 | pass |
|
749 | 752 | |
|
750 | 753 | #--------------------------------------------------------------------------- |
|
751 | 754 | # IEngineProperties methods |
|
752 | 755 | #--------------------------------------------------------------------------- |
|
753 | 756 | |
|
754 | 757 | @queue |
|
755 | 758 | def set_properties(self, namespace): |
|
756 | 759 | pass |
|
757 | 760 | |
|
758 | 761 | @queue |
|
759 | 762 | def get_properties(self, keys=None): |
|
760 | 763 | pass |
|
761 | 764 | |
|
762 | 765 | @queue |
|
763 | 766 | def del_properties(self, keys): |
|
764 | 767 | pass |
|
765 | 768 | |
|
766 | 769 | @queue |
|
767 | 770 | def has_properties(self, keys): |
|
768 | 771 | pass |
|
769 | 772 | |
|
770 | 773 | @queue |
|
771 | 774 | def clear_properties(self): |
|
772 | 775 | pass |
|
773 | 776 | |
|
774 | 777 | #--------------------------------------------------------------------------- |
|
775 | 778 | # IQueuedEngine methods |
|
776 | 779 | #--------------------------------------------------------------------------- |
|
777 | 780 | |
|
778 | 781 | def clear_queue(self, msg=''): |
|
779 | 782 | """Clear the queue, but doesn't cancel the currently running commmand.""" |
|
780 | 783 | |
|
781 | 784 | for cmd in self.queued: |
|
782 | 785 | cmd.deferred.errback(failure.Failure(error.QueueCleared(msg))) |
|
783 | 786 | self.queued = [] |
|
784 | 787 | return defer.succeed(None) |
|
785 | 788 | |
|
786 | 789 | def queue_status(self): |
|
787 | 790 | if self.currentCommand is not None: |
|
788 | 791 | if self.currentCommand.finished: |
|
789 | 792 | pending = repr(None) |
|
790 | 793 | else: |
|
791 | 794 | pending = repr(self.currentCommand) |
|
792 | 795 | else: |
|
793 | 796 | pending = repr(None) |
|
794 | 797 | dikt = {'queue':map(repr,self.queued), 'pending':pending} |
|
795 | 798 | return defer.succeed(dikt) |
|
796 | 799 | |
|
797 | 800 | def register_failure_observer(self, obs): |
|
798 | 801 | self.failureObservers.append(obs) |
|
799 | 802 | |
|
800 | 803 | def unregister_failure_observer(self, obs): |
|
801 | 804 | self.failureObservers.remove(obs) |
|
802 | 805 | |
|
803 | 806 | |
|
804 | 807 | # Now register QueuedEngine as an adpater class that makes an IEngineBase into a |
|
805 | 808 | # IEngineQueued. |
|
806 | 809 | components.registerAdapter(QueuedEngine, IEngineBase, IEngineQueued) |
|
807 | 810 | |
|
808 | 811 | |
|
809 | 812 | class Command(object): |
|
810 | 813 | """A command object that encapslates queued commands. |
|
811 | 814 | |
|
812 | 815 | This class basically keeps track of a command that has been queued |
|
813 | 816 | in a QueuedEngine. It manages the deferreds and hold the method to be called |
|
814 | 817 | and the arguments to that method. |
|
815 | 818 | """ |
|
816 | 819 | |
|
817 | 820 | |
|
818 | 821 | def __init__(self, remoteMethod, *args, **kwargs): |
|
819 | 822 | """Build a new Command object.""" |
|
820 | 823 | |
|
821 | 824 | self.remoteMethod = remoteMethod |
|
822 | 825 | self.args = args |
|
823 | 826 | self.kwargs = kwargs |
|
824 | 827 | self.finished = False |
|
825 | 828 | |
|
826 | 829 | def setDeferred(self, d): |
|
827 | 830 | """Sets the deferred attribute of the Command.""" |
|
828 | 831 | |
|
829 | 832 | self.deferred = d |
|
830 | 833 | |
|
831 | 834 | def __repr__(self): |
|
832 | 835 | if not self.args: |
|
833 | 836 | args = '' |
|
834 | 837 | else: |
|
835 | 838 | args = str(self.args)[1:-2] #cut off (...,) |
|
836 | 839 | for k,v in self.kwargs.iteritems(): |
|
837 | 840 | if args: |
|
838 | 841 | args += ', ' |
|
839 | 842 | args += '%s=%r' %(k,v) |
|
840 | 843 | return "%s(%s)" %(self.remoteMethod, args) |
|
841 | 844 | |
|
842 | 845 | def handleResult(self, result): |
|
843 | 846 | """When the result is ready, relay it to self.deferred.""" |
|
844 | 847 | |
|
845 | 848 | self.deferred.callback(result) |
|
846 | 849 | |
|
847 | 850 | def handleError(self, reason): |
|
848 | 851 | """When an error has occured, relay it to self.deferred.""" |
|
849 | 852 | |
|
850 | 853 | self.deferred.errback(reason) |
|
851 | 854 | |
|
852 | 855 | class ThreadedEngineService(EngineService): |
|
853 | 856 | """An EngineService subclass that defers execute commands to a separate |
|
854 | 857 | thread. |
|
855 | 858 | |
|
856 | 859 | ThreadedEngineService uses twisted.internet.threads.deferToThread to |
|
857 | 860 | defer execute requests to a separate thread. GUI frontends may want to |
|
858 | 861 | use ThreadedEngineService as the engine in an |
|
859 | 862 | IPython.frontend.frontendbase.FrontEndBase subclass to prevent |
|
860 | 863 | block execution from blocking the GUI thread. |
|
861 | 864 | """ |
|
862 | 865 | |
|
863 | 866 | zi.implements(IEngineBase) |
|
864 | 867 | |
|
865 | 868 | def __init__(self, shellClass=Interpreter, mpi=None): |
|
866 | 869 | EngineService.__init__(self, shellClass, mpi) |
|
867 | 870 | |
|
868 | 871 | def wrapped_execute(self, msg, lines): |
|
869 | 872 | """Wrap self.shell.execute to add extra information to tracebacks""" |
|
870 | 873 | |
|
871 | 874 | try: |
|
872 | 875 | result = self.shell.execute(lines) |
|
873 | 876 | except Exception,e: |
|
874 | 877 | # This gives the following: |
|
875 | 878 | # et=exception class |
|
876 | 879 | # ev=exception class instance |
|
877 | 880 | # tb=traceback object |
|
878 | 881 | et,ev,tb = sys.exc_info() |
|
879 | 882 | # This call adds attributes to the exception value |
|
880 | 883 | et,ev,tb = self.shell.formatTraceback(et,ev,tb,msg) |
|
881 | 884 | # Add another attribute |
|
882 | 885 | |
|
883 | 886 | # Create a new exception with the new attributes |
|
884 | 887 | e = et(ev._ipython_traceback_text) |
|
885 | 888 | e._ipython_engine_info = msg |
|
886 | 889 | |
|
887 | 890 | # Re-raise |
|
888 | 891 | raise e |
|
889 | 892 | |
|
890 | 893 | return result |
|
891 | 894 | |
|
892 | 895 | |
|
893 | 896 | def execute(self, lines): |
|
894 | 897 | # Only import this if we are going to use this class |
|
895 | 898 | from twisted.internet import threads |
|
896 | 899 | |
|
897 | 900 | msg = {'engineid':self.id, |
|
898 | 901 | 'method':'execute', |
|
899 | 902 | 'args':[lines]} |
|
900 | 903 | |
|
901 | 904 | d = threads.deferToThread(self.wrapped_execute, msg, lines) |
|
902 | 905 | d.addCallback(self.addIDToResult) |
|
903 | 906 | return d |
@@ -1,185 +1,202 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """Classes and functions for kernel related errors and exceptions.""" |
|
4 | 4 | |
|
5 | 5 | __docformat__ = "restructuredtext en" |
|
6 | 6 | |
|
7 | 7 | #------------------------------------------------------------------------------- |
|
8 | 8 | # Copyright (C) 2008 The IPython Development Team |
|
9 | 9 | # |
|
10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | 11 | # the file COPYING, distributed as part of this software. |
|
12 | 12 | #------------------------------------------------------------------------------- |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #------------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | 18 | from IPython.kernel.core import error |
|
19 | 19 | from twisted.python import failure |
|
20 | 20 | |
|
21 | 21 | #------------------------------------------------------------------------------- |
|
22 | 22 | # Error classes |
|
23 | 23 | #------------------------------------------------------------------------------- |
|
24 | 24 | |
|
25 | 25 | class KernelError(error.IPythonError): |
|
26 | 26 | pass |
|
27 | 27 | |
|
28 | 28 | class NotDefined(KernelError): |
|
29 | 29 | def __init__(self, name): |
|
30 | 30 | self.name = name |
|
31 | 31 | self.args = (name,) |
|
32 | 32 | |
|
33 | 33 | def __repr__(self): |
|
34 | 34 | return '<NotDefined: %s>' % self.name |
|
35 | 35 | |
|
36 | 36 | __str__ = __repr__ |
|
37 | 37 | |
|
38 | 38 | class QueueCleared(KernelError): |
|
39 | 39 | pass |
|
40 | 40 | |
|
41 | 41 | class IdInUse(KernelError): |
|
42 | 42 | pass |
|
43 | 43 | |
|
44 | 44 | class ProtocolError(KernelError): |
|
45 | 45 | pass |
|
46 | 46 | |
|
47 | 47 | class ConnectionError(KernelError): |
|
48 | 48 | pass |
|
49 | 49 | |
|
50 | 50 | class InvalidEngineID(KernelError): |
|
51 | 51 | pass |
|
52 | 52 | |
|
53 | 53 | class NoEnginesRegistered(KernelError): |
|
54 | 54 | pass |
|
55 | 55 | |
|
56 | 56 | class InvalidClientID(KernelError): |
|
57 | 57 | pass |
|
58 | 58 | |
|
59 | 59 | class InvalidDeferredID(KernelError): |
|
60 | 60 | pass |
|
61 | 61 | |
|
62 | 62 | class SerializationError(KernelError): |
|
63 | 63 | pass |
|
64 | 64 | |
|
65 | 65 | class MessageSizeError(KernelError): |
|
66 | 66 | pass |
|
67 | 67 | |
|
68 | 68 | class PBMessageSizeError(MessageSizeError): |
|
69 | 69 | pass |
|
70 | 70 | |
|
71 | 71 | class ResultNotCompleted(KernelError): |
|
72 | 72 | pass |
|
73 | 73 | |
|
74 | 74 | class ResultAlreadyRetrieved(KernelError): |
|
75 | 75 | pass |
|
76 | 76 | |
|
77 | 77 | class ClientError(KernelError): |
|
78 | 78 | pass |
|
79 | 79 | |
|
80 | 80 | class TaskAborted(KernelError): |
|
81 | 81 | pass |
|
82 | 82 | |
|
83 | 83 | class TaskTimeout(KernelError): |
|
84 | 84 | pass |
|
85 | 85 | |
|
86 | 86 | class NotAPendingResult(KernelError): |
|
87 | 87 | pass |
|
88 | 88 | |
|
89 | 89 | class UnpickleableException(KernelError): |
|
90 | 90 | pass |
|
91 | 91 | |
|
92 | 92 | class AbortedPendingDeferredError(KernelError): |
|
93 | 93 | pass |
|
94 | 94 | |
|
95 | 95 | class InvalidProperty(KernelError): |
|
96 | 96 | pass |
|
97 | 97 | |
|
98 | 98 | class MissingBlockArgument(KernelError): |
|
99 | 99 | pass |
|
100 | 100 | |
|
101 | 101 | class StopLocalExecution(KernelError): |
|
102 | 102 | pass |
|
103 | 103 | |
|
104 | 104 | class SecurityError(KernelError): |
|
105 | 105 | pass |
|
106 | 106 | |
|
107 | class FileTimeoutError(KernelError): | |
|
108 | pass | |
|
109 | ||
|
110 | class TaskRejectError(KernelError): | |
|
111 | """Exception to raise when a task should be rejected by an engine. | |
|
112 | ||
|
113 | This exception can be used to allow a task running on an engine to test | |
|
114 | if the engine (or the user's namespace on the engine) has the needed | |
|
115 | task dependencies. If not, the task should raise this exception. For | |
|
116 | the task to be retried on another engine, the task should be created | |
|
117 | with the `retries` argument > 1. | |
|
118 | ||
|
119 | The advantage of this approach over our older properties system is that | |
|
120 | tasks have full access to the user's namespace on the engines and the | |
|
121 | properties don't have to be managed or tested by the controller. | |
|
122 | """ | |
|
123 | ||
|
107 | 124 | class CompositeError(KernelError): |
|
108 | 125 | def __init__(self, message, elist): |
|
109 | 126 | Exception.__init__(self, *(message, elist)) |
|
110 | 127 | self.message = message |
|
111 | 128 | self.elist = elist |
|
112 | 129 | |
|
113 | 130 | def _get_engine_str(self, ev): |
|
114 | 131 | try: |
|
115 | 132 | ei = ev._ipython_engine_info |
|
116 | 133 | except AttributeError: |
|
117 | 134 | return '[Engine Exception]' |
|
118 | 135 | else: |
|
119 | 136 | return '[%i:%s]: ' % (ei['engineid'], ei['method']) |
|
120 | 137 | |
|
121 | 138 | def _get_traceback(self, ev): |
|
122 | 139 | try: |
|
123 | 140 | tb = ev._ipython_traceback_text |
|
124 | 141 | except AttributeError: |
|
125 | 142 | return 'No traceback available' |
|
126 | 143 | else: |
|
127 | 144 | return tb |
|
128 | 145 | |
|
129 | 146 | def __str__(self): |
|
130 | 147 | s = str(self.message) |
|
131 | 148 | for et, ev, etb in self.elist: |
|
132 | 149 | engine_str = self._get_engine_str(ev) |
|
133 | 150 | s = s + '\n' + engine_str + str(et.__name__) + ': ' + str(ev) |
|
134 | 151 | return s |
|
135 | 152 | |
|
136 | 153 | def print_tracebacks(self, excid=None): |
|
137 | 154 | if excid is None: |
|
138 | 155 | for (et,ev,etb) in self.elist: |
|
139 | 156 | print self._get_engine_str(ev) |
|
140 | 157 | print self._get_traceback(ev) |
|
141 | 158 | |
|
142 | 159 | else: |
|
143 | 160 | try: |
|
144 | 161 | et,ev,etb = self.elist[excid] |
|
145 | 162 | except: |
|
146 | 163 | raise IndexError("an exception with index %i does not exist"%excid) |
|
147 | 164 | else: |
|
148 | 165 | print self._get_engine_str(ev) |
|
149 | 166 | print self._get_traceback(ev) |
|
150 | 167 | |
|
151 | 168 | def raise_exception(self, excid=0): |
|
152 | 169 | try: |
|
153 | 170 | et,ev,etb = self.elist[excid] |
|
154 | 171 | except: |
|
155 | 172 | raise IndexError("an exception with index %i does not exist"%excid) |
|
156 | 173 | else: |
|
157 | 174 | raise et, ev, etb |
|
158 | 175 | |
|
159 | 176 | def collect_exceptions(rlist, method): |
|
160 | 177 | elist = [] |
|
161 | 178 | for r in rlist: |
|
162 | 179 | if isinstance(r, failure.Failure): |
|
163 | 180 | r.cleanFailure() |
|
164 | 181 | et, ev, etb = r.type, r.value, r.tb |
|
165 | 182 | # Sometimes we could have CompositeError in our list. Just take |
|
166 | 183 | # the errors out of them and put them in our new list. This |
|
167 | 184 | # has the effect of flattening lists of CompositeErrors into one |
|
168 | 185 | # CompositeError |
|
169 | 186 | if et==CompositeError: |
|
170 | 187 | for e in ev.elist: |
|
171 | 188 | elist.append(e) |
|
172 | 189 | else: |
|
173 | 190 | elist.append((et, ev, etb)) |
|
174 | 191 | if len(elist)==0: |
|
175 | 192 | return rlist |
|
176 | 193 | else: |
|
177 | 194 | msg = "one or more exceptions from call to method: %s" % (method) |
|
178 | 195 | # This silliness is needed so the debugger has access to the exception |
|
179 | 196 | # instance (e in this case) |
|
180 | 197 | try: |
|
181 | 198 | raise CompositeError(msg, elist) |
|
182 | 199 | except CompositeError, e: |
|
183 | 200 | raise e |
|
184 | 201 | |
|
185 | 202 |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
|
1 | NO CONTENT: modified file | |
The requested commit or file is too big and content was truncated. Show full diff |
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