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@@ -1,645 +1,645 b'' | |||||
1 | # -*- coding: utf-8 -*- |
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1 | # -*- coding: utf-8 -*- | |
2 | """ |
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2 | """ | |
3 | Pdb debugger class. |
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3 | Pdb debugger class. | |
4 |
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4 | |||
5 | Modified from the standard pdb.Pdb class to avoid including readline, so that |
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5 | Modified from the standard pdb.Pdb class to avoid including readline, so that | |
6 | the command line completion of other programs which include this isn't |
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6 | the command line completion of other programs which include this isn't | |
7 | damaged. |
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7 | damaged. | |
8 |
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8 | |||
9 | In the future, this class will be expanded with improvements over the standard |
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9 | In the future, this class will be expanded with improvements over the standard | |
10 | pdb. |
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10 | pdb. | |
11 |
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11 | |||
12 | The code in this file is mainly lifted out of cmd.py in Python 2.2, with minor |
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12 | The code in this file is mainly lifted out of cmd.py in Python 2.2, with minor | |
13 | changes. Licensing should therefore be under the standard Python terms. For |
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13 | changes. Licensing should therefore be under the standard Python terms. For | |
14 | details on the PSF (Python Software Foundation) standard license, see: |
|
14 | details on the PSF (Python Software Foundation) standard license, see: | |
15 |
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15 | |||
16 | https://docs.python.org/2/license.html |
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16 | https://docs.python.org/2/license.html | |
17 | """ |
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17 | """ | |
18 |
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18 | |||
19 | #***************************************************************************** |
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19 | #***************************************************************************** | |
20 | # |
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20 | # | |
21 | # This file is licensed under the PSF license. |
|
21 | # This file is licensed under the PSF license. | |
22 | # |
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22 | # | |
23 | # Copyright (C) 2001 Python Software Foundation, www.python.org |
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23 | # Copyright (C) 2001 Python Software Foundation, www.python.org | |
24 | # Copyright (C) 2005-2006 Fernando Perez. <fperez@colorado.edu> |
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24 | # Copyright (C) 2005-2006 Fernando Perez. <fperez@colorado.edu> | |
25 | # |
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25 | # | |
26 | # |
|
26 | # | |
27 | #***************************************************************************** |
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27 | #***************************************************************************** | |
28 |
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28 | |||
29 | import bdb |
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29 | import bdb | |
30 | import functools |
|
30 | import functools | |
31 | import inspect |
|
31 | import inspect | |
32 | import linecache |
|
32 | import linecache | |
33 | import sys |
|
33 | import sys | |
34 | import warnings |
|
34 | import warnings | |
35 | import re |
|
35 | import re | |
36 |
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36 | |||
37 | from IPython import get_ipython |
|
37 | from IPython import get_ipython | |
38 | from IPython.utils import PyColorize |
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38 | from IPython.utils import PyColorize | |
39 | from IPython.utils import coloransi, py3compat |
|
39 | from IPython.utils import coloransi, py3compat | |
40 | from IPython.core.excolors import exception_colors |
|
40 | from IPython.core.excolors import exception_colors | |
41 | from IPython.testing.skipdoctest import skip_doctest |
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41 | from IPython.testing.skipdoctest import skip_doctest | |
42 |
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42 | |||
43 |
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43 | |||
44 | prompt = 'ipdb> ' |
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44 | prompt = 'ipdb> ' | |
45 |
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45 | |||
46 | #We have to check this directly from sys.argv, config struct not yet available |
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46 | #We have to check this directly from sys.argv, config struct not yet available | |
47 | from pdb import Pdb as OldPdb |
|
47 | from pdb import Pdb as OldPdb | |
48 |
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48 | |||
49 | # Allow the set_trace code to operate outside of an ipython instance, even if |
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49 | # Allow the set_trace code to operate outside of an ipython instance, even if | |
50 | # it does so with some limitations. The rest of this support is implemented in |
|
50 | # it does so with some limitations. The rest of this support is implemented in | |
51 | # the Tracer constructor. |
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51 | # the Tracer constructor. | |
52 |
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52 | |||
53 | def make_arrow(pad): |
|
53 | def make_arrow(pad): | |
54 | """generate the leading arrow in front of traceback or debugger""" |
|
54 | """generate the leading arrow in front of traceback or debugger""" | |
55 | if pad >= 2: |
|
55 | if pad >= 2: | |
56 | return '-'*(pad-2) + '> ' |
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56 | return '-'*(pad-2) + '> ' | |
57 | elif pad == 1: |
|
57 | elif pad == 1: | |
58 | return '>' |
|
58 | return '>' | |
59 | return '' |
|
59 | return '' | |
60 |
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60 | |||
61 |
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61 | |||
62 | def BdbQuit_excepthook(et, ev, tb, excepthook=None): |
|
62 | def BdbQuit_excepthook(et, ev, tb, excepthook=None): | |
63 | """Exception hook which handles `BdbQuit` exceptions. |
|
63 | """Exception hook which handles `BdbQuit` exceptions. | |
64 |
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64 | |||
65 | All other exceptions are processed using the `excepthook` |
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65 | All other exceptions are processed using the `excepthook` | |
66 | parameter. |
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66 | parameter. | |
67 | """ |
|
67 | """ | |
68 | warnings.warn("`BdbQuit_excepthook` is deprecated since version 5.1", |
|
68 | warnings.warn("`BdbQuit_excepthook` is deprecated since version 5.1", | |
69 | DeprecationWarning, stacklevel=2) |
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69 | DeprecationWarning, stacklevel=2) | |
70 | if et==bdb.BdbQuit: |
|
70 | if et==bdb.BdbQuit: | |
71 | print('Exiting Debugger.') |
|
71 | print('Exiting Debugger.') | |
72 | elif excepthook is not None: |
|
72 | elif excepthook is not None: | |
73 | excepthook(et, ev, tb) |
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73 | excepthook(et, ev, tb) | |
74 | else: |
|
74 | else: | |
75 | # Backwards compatibility. Raise deprecation warning? |
|
75 | # Backwards compatibility. Raise deprecation warning? | |
76 | BdbQuit_excepthook.excepthook_ori(et,ev,tb) |
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76 | BdbQuit_excepthook.excepthook_ori(et,ev,tb) | |
77 |
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77 | |||
78 |
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78 | |||
79 | def BdbQuit_IPython_excepthook(self,et,ev,tb,tb_offset=None): |
|
79 | def BdbQuit_IPython_excepthook(self,et,ev,tb,tb_offset=None): | |
80 | warnings.warn( |
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80 | warnings.warn( | |
81 | "`BdbQuit_IPython_excepthook` is deprecated since version 5.1", |
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81 | "`BdbQuit_IPython_excepthook` is deprecated since version 5.1", | |
82 | DeprecationWarning, stacklevel=2) |
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82 | DeprecationWarning, stacklevel=2) | |
83 | print('Exiting Debugger.') |
|
83 | print('Exiting Debugger.') | |
84 |
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84 | |||
85 |
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85 | |||
86 | class Tracer(object): |
|
86 | class Tracer(object): | |
87 | """ |
|
87 | """ | |
88 | DEPRECATED |
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88 | DEPRECATED | |
89 |
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89 | |||
90 | Class for local debugging, similar to pdb.set_trace. |
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90 | Class for local debugging, similar to pdb.set_trace. | |
91 |
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91 | |||
92 | Instances of this class, when called, behave like pdb.set_trace, but |
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92 | Instances of this class, when called, behave like pdb.set_trace, but | |
93 | providing IPython's enhanced capabilities. |
|
93 | providing IPython's enhanced capabilities. | |
94 |
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94 | |||
95 | This is implemented as a class which must be initialized in your own code |
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95 | This is implemented as a class which must be initialized in your own code | |
96 | and not as a standalone function because we need to detect at runtime |
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96 | and not as a standalone function because we need to detect at runtime | |
97 | whether IPython is already active or not. That detection is done in the |
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97 | whether IPython is already active or not. That detection is done in the | |
98 | constructor, ensuring that this code plays nicely with a running IPython, |
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98 | constructor, ensuring that this code plays nicely with a running IPython, | |
99 | while functioning acceptably (though with limitations) if outside of it. |
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99 | while functioning acceptably (though with limitations) if outside of it. | |
100 | """ |
|
100 | """ | |
101 |
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101 | |||
102 | @skip_doctest |
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102 | @skip_doctest | |
103 | def __init__(self, colors=None): |
|
103 | def __init__(self, colors=None): | |
104 | """ |
|
104 | """ | |
105 | DEPRECATED |
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105 | DEPRECATED | |
106 |
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106 | |||
107 | Create a local debugger instance. |
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107 | Create a local debugger instance. | |
108 |
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108 | |||
109 | Parameters |
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109 | Parameters | |
110 | ---------- |
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110 | ---------- | |
111 |
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111 | |||
112 | colors : str, optional |
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112 | colors : str, optional | |
113 | The name of the color scheme to use, it must be one of IPython's |
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113 | The name of the color scheme to use, it must be one of IPython's | |
114 | valid color schemes. If not given, the function will default to |
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114 | valid color schemes. If not given, the function will default to | |
115 | the current IPython scheme when running inside IPython, and to |
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115 | the current IPython scheme when running inside IPython, and to | |
116 | 'NoColor' otherwise. |
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116 | 'NoColor' otherwise. | |
117 |
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117 | |||
118 | Examples |
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118 | Examples | |
119 | -------- |
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119 | -------- | |
120 | :: |
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120 | :: | |
121 |
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121 | |||
122 | from IPython.core.debugger import Tracer; debug_here = Tracer() |
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122 | from IPython.core.debugger import Tracer; debug_here = Tracer() | |
123 |
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123 | |||
124 | Later in your code:: |
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124 | Later in your code:: | |
125 |
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125 | |||
126 | debug_here() # -> will open up the debugger at that point. |
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126 | debug_here() # -> will open up the debugger at that point. | |
127 |
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127 | |||
128 | Once the debugger activates, you can use all of its regular commands to |
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128 | Once the debugger activates, you can use all of its regular commands to | |
129 | step through code, set breakpoints, etc. See the pdb documentation |
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129 | step through code, set breakpoints, etc. See the pdb documentation | |
130 | from the Python standard library for usage details. |
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130 | from the Python standard library for usage details. | |
131 | """ |
|
131 | """ | |
132 | warnings.warn("`Tracer` is deprecated since version 5.1, directly use " |
|
132 | warnings.warn("`Tracer` is deprecated since version 5.1, directly use " | |
133 | "`IPython.core.debugger.Pdb.set_trace()`", |
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133 | "`IPython.core.debugger.Pdb.set_trace()`", | |
134 | DeprecationWarning, stacklevel=2) |
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134 | DeprecationWarning, stacklevel=2) | |
135 |
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135 | |||
136 | ip = get_ipython() |
|
136 | ip = get_ipython() | |
137 | if ip is None: |
|
137 | if ip is None: | |
138 | # Outside of ipython, we set our own exception hook manually |
|
138 | # Outside of ipython, we set our own exception hook manually | |
139 | sys.excepthook = functools.partial(BdbQuit_excepthook, |
|
139 | sys.excepthook = functools.partial(BdbQuit_excepthook, | |
140 | excepthook=sys.excepthook) |
|
140 | excepthook=sys.excepthook) | |
141 | def_colors = 'NoColor' |
|
141 | def_colors = 'NoColor' | |
142 | else: |
|
142 | else: | |
143 | # In ipython, we use its custom exception handler mechanism |
|
143 | # In ipython, we use its custom exception handler mechanism | |
144 | def_colors = ip.colors |
|
144 | def_colors = ip.colors | |
145 | ip.set_custom_exc((bdb.BdbQuit,), BdbQuit_IPython_excepthook) |
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145 | ip.set_custom_exc((bdb.BdbQuit,), BdbQuit_IPython_excepthook) | |
146 |
|
146 | |||
147 | if colors is None: |
|
147 | if colors is None: | |
148 | colors = def_colors |
|
148 | colors = def_colors | |
149 |
|
149 | |||
150 | # The stdlib debugger internally uses a modified repr from the `repr` |
|
150 | # The stdlib debugger internally uses a modified repr from the `repr` | |
151 | # module, that limits the length of printed strings to a hardcoded |
|
151 | # module, that limits the length of printed strings to a hardcoded | |
152 | # limit of 30 characters. That much trimming is too aggressive, let's |
|
152 | # limit of 30 characters. That much trimming is too aggressive, let's | |
153 | # at least raise that limit to 80 chars, which should be enough for |
|
153 | # at least raise that limit to 80 chars, which should be enough for | |
154 | # most interactive uses. |
|
154 | # most interactive uses. | |
155 | try: |
|
155 | try: | |
156 | try: |
|
156 | try: | |
157 | from reprlib import aRepr # Py 3 |
|
157 | from reprlib import aRepr # Py 3 | |
158 | except ImportError: |
|
158 | except ImportError: | |
159 | from repr import aRepr # Py 2 |
|
159 | from repr import aRepr # Py 2 | |
160 | aRepr.maxstring = 80 |
|
160 | aRepr.maxstring = 80 | |
161 | except: |
|
161 | except: | |
162 | # This is only a user-facing convenience, so any error we encounter |
|
162 | # This is only a user-facing convenience, so any error we encounter | |
163 | # here can be warned about but can be otherwise ignored. These |
|
163 | # here can be warned about but can be otherwise ignored. These | |
164 | # printouts will tell us about problems if this API changes |
|
164 | # printouts will tell us about problems if this API changes | |
165 | import traceback |
|
165 | import traceback | |
166 | traceback.print_exc() |
|
166 | traceback.print_exc() | |
167 |
|
167 | |||
168 | self.debugger = Pdb(colors) |
|
168 | self.debugger = Pdb(colors) | |
169 |
|
169 | |||
170 | def __call__(self): |
|
170 | def __call__(self): | |
171 | """Starts an interactive debugger at the point where called. |
|
171 | """Starts an interactive debugger at the point where called. | |
172 |
|
172 | |||
173 | This is similar to the pdb.set_trace() function from the std lib, but |
|
173 | This is similar to the pdb.set_trace() function from the std lib, but | |
174 | using IPython's enhanced debugger.""" |
|
174 | using IPython's enhanced debugger.""" | |
175 |
|
175 | |||
176 | self.debugger.set_trace(sys._getframe().f_back) |
|
176 | self.debugger.set_trace(sys._getframe().f_back) | |
177 |
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177 | |||
178 |
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178 | |||
179 | RGX_EXTRA_INDENT = re.compile('(?<=\n)\s+') |
|
179 | RGX_EXTRA_INDENT = re.compile(r'(?<=\n)\s+') | |
180 |
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180 | |||
181 |
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181 | |||
182 | def strip_indentation(multiline_string): |
|
182 | def strip_indentation(multiline_string): | |
183 | return RGX_EXTRA_INDENT.sub('', multiline_string) |
|
183 | return RGX_EXTRA_INDENT.sub('', multiline_string) | |
184 |
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184 | |||
185 |
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185 | |||
186 | def decorate_fn_with_doc(new_fn, old_fn, additional_text=""): |
|
186 | def decorate_fn_with_doc(new_fn, old_fn, additional_text=""): | |
187 | """Make new_fn have old_fn's doc string. This is particularly useful |
|
187 | """Make new_fn have old_fn's doc string. This is particularly useful | |
188 | for the ``do_...`` commands that hook into the help system. |
|
188 | for the ``do_...`` commands that hook into the help system. | |
189 | Adapted from from a comp.lang.python posting |
|
189 | Adapted from from a comp.lang.python posting | |
190 | by Duncan Booth.""" |
|
190 | by Duncan Booth.""" | |
191 | def wrapper(*args, **kw): |
|
191 | def wrapper(*args, **kw): | |
192 | return new_fn(*args, **kw) |
|
192 | return new_fn(*args, **kw) | |
193 | if old_fn.__doc__: |
|
193 | if old_fn.__doc__: | |
194 | wrapper.__doc__ = strip_indentation(old_fn.__doc__) + additional_text |
|
194 | wrapper.__doc__ = strip_indentation(old_fn.__doc__) + additional_text | |
195 | return wrapper |
|
195 | return wrapper | |
196 |
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196 | |||
197 |
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197 | |||
198 | def _file_lines(fname): |
|
198 | def _file_lines(fname): | |
199 | """Return the contents of a named file as a list of lines. |
|
199 | """Return the contents of a named file as a list of lines. | |
200 |
|
200 | |||
201 | This function never raises an IOError exception: if the file can't be |
|
201 | This function never raises an IOError exception: if the file can't be | |
202 | read, it simply returns an empty list.""" |
|
202 | read, it simply returns an empty list.""" | |
203 |
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203 | |||
204 | try: |
|
204 | try: | |
205 | outfile = open(fname) |
|
205 | outfile = open(fname) | |
206 | except IOError: |
|
206 | except IOError: | |
207 | return [] |
|
207 | return [] | |
208 | else: |
|
208 | else: | |
209 | out = outfile.readlines() |
|
209 | out = outfile.readlines() | |
210 | outfile.close() |
|
210 | outfile.close() | |
211 | return out |
|
211 | return out | |
212 |
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212 | |||
213 |
|
213 | |||
214 | class Pdb(OldPdb): |
|
214 | class Pdb(OldPdb): | |
215 | """Modified Pdb class, does not load readline. |
|
215 | """Modified Pdb class, does not load readline. | |
216 |
|
216 | |||
217 | for a standalone version that uses prompt_toolkit, see |
|
217 | for a standalone version that uses prompt_toolkit, see | |
218 | `IPython.terminal.debugger.TerminalPdb` and |
|
218 | `IPython.terminal.debugger.TerminalPdb` and | |
219 | `IPython.terminal.debugger.set_trace()` |
|
219 | `IPython.terminal.debugger.set_trace()` | |
220 | """ |
|
220 | """ | |
221 |
|
221 | |||
222 | def __init__(self, color_scheme=None, completekey=None, |
|
222 | def __init__(self, color_scheme=None, completekey=None, | |
223 | stdin=None, stdout=None, context=5): |
|
223 | stdin=None, stdout=None, context=5): | |
224 |
|
224 | |||
225 | # Parent constructor: |
|
225 | # Parent constructor: | |
226 | try: |
|
226 | try: | |
227 | self.context = int(context) |
|
227 | self.context = int(context) | |
228 | if self.context <= 0: |
|
228 | if self.context <= 0: | |
229 | raise ValueError("Context must be a positive integer") |
|
229 | raise ValueError("Context must be a positive integer") | |
230 | except (TypeError, ValueError): |
|
230 | except (TypeError, ValueError): | |
231 | raise ValueError("Context must be a positive integer") |
|
231 | raise ValueError("Context must be a positive integer") | |
232 |
|
232 | |||
233 | OldPdb.__init__(self, completekey, stdin, stdout) |
|
233 | OldPdb.__init__(self, completekey, stdin, stdout) | |
234 |
|
234 | |||
235 | # IPython changes... |
|
235 | # IPython changes... | |
236 | self.shell = get_ipython() |
|
236 | self.shell = get_ipython() | |
237 |
|
237 | |||
238 | if self.shell is None: |
|
238 | if self.shell is None: | |
239 | save_main = sys.modules['__main__'] |
|
239 | save_main = sys.modules['__main__'] | |
240 | # No IPython instance running, we must create one |
|
240 | # No IPython instance running, we must create one | |
241 | from IPython.terminal.interactiveshell import \ |
|
241 | from IPython.terminal.interactiveshell import \ | |
242 | TerminalInteractiveShell |
|
242 | TerminalInteractiveShell | |
243 | self.shell = TerminalInteractiveShell.instance() |
|
243 | self.shell = TerminalInteractiveShell.instance() | |
244 | # needed by any code which calls __import__("__main__") after |
|
244 | # needed by any code which calls __import__("__main__") after | |
245 | # the debugger was entered. See also #9941. |
|
245 | # the debugger was entered. See also #9941. | |
246 | sys.modules['__main__'] = save_main |
|
246 | sys.modules['__main__'] = save_main | |
247 |
|
247 | |||
248 | if color_scheme is not None: |
|
248 | if color_scheme is not None: | |
249 | warnings.warn( |
|
249 | warnings.warn( | |
250 | "The `color_scheme` argument is deprecated since version 5.1", |
|
250 | "The `color_scheme` argument is deprecated since version 5.1", | |
251 | DeprecationWarning, stacklevel=2) |
|
251 | DeprecationWarning, stacklevel=2) | |
252 | else: |
|
252 | else: | |
253 | color_scheme = self.shell.colors |
|
253 | color_scheme = self.shell.colors | |
254 |
|
254 | |||
255 | self.aliases = {} |
|
255 | self.aliases = {} | |
256 |
|
256 | |||
257 | # Create color table: we copy the default one from the traceback |
|
257 | # Create color table: we copy the default one from the traceback | |
258 | # module and add a few attributes needed for debugging |
|
258 | # module and add a few attributes needed for debugging | |
259 | self.color_scheme_table = exception_colors() |
|
259 | self.color_scheme_table = exception_colors() | |
260 |
|
260 | |||
261 | # shorthands |
|
261 | # shorthands | |
262 | C = coloransi.TermColors |
|
262 | C = coloransi.TermColors | |
263 | cst = self.color_scheme_table |
|
263 | cst = self.color_scheme_table | |
264 |
|
264 | |||
265 | cst['NoColor'].colors.prompt = C.NoColor |
|
265 | cst['NoColor'].colors.prompt = C.NoColor | |
266 | cst['NoColor'].colors.breakpoint_enabled = C.NoColor |
|
266 | cst['NoColor'].colors.breakpoint_enabled = C.NoColor | |
267 | cst['NoColor'].colors.breakpoint_disabled = C.NoColor |
|
267 | cst['NoColor'].colors.breakpoint_disabled = C.NoColor | |
268 |
|
268 | |||
269 | cst['Linux'].colors.prompt = C.Green |
|
269 | cst['Linux'].colors.prompt = C.Green | |
270 | cst['Linux'].colors.breakpoint_enabled = C.LightRed |
|
270 | cst['Linux'].colors.breakpoint_enabled = C.LightRed | |
271 | cst['Linux'].colors.breakpoint_disabled = C.Red |
|
271 | cst['Linux'].colors.breakpoint_disabled = C.Red | |
272 |
|
272 | |||
273 | cst['LightBG'].colors.prompt = C.Blue |
|
273 | cst['LightBG'].colors.prompt = C.Blue | |
274 | cst['LightBG'].colors.breakpoint_enabled = C.LightRed |
|
274 | cst['LightBG'].colors.breakpoint_enabled = C.LightRed | |
275 | cst['LightBG'].colors.breakpoint_disabled = C.Red |
|
275 | cst['LightBG'].colors.breakpoint_disabled = C.Red | |
276 |
|
276 | |||
277 | cst['Neutral'].colors.prompt = C.Blue |
|
277 | cst['Neutral'].colors.prompt = C.Blue | |
278 | cst['Neutral'].colors.breakpoint_enabled = C.LightRed |
|
278 | cst['Neutral'].colors.breakpoint_enabled = C.LightRed | |
279 | cst['Neutral'].colors.breakpoint_disabled = C.Red |
|
279 | cst['Neutral'].colors.breakpoint_disabled = C.Red | |
280 |
|
280 | |||
281 |
|
281 | |||
282 | # Add a python parser so we can syntax highlight source while |
|
282 | # Add a python parser so we can syntax highlight source while | |
283 | # debugging. |
|
283 | # debugging. | |
284 | self.parser = PyColorize.Parser(style=color_scheme) |
|
284 | self.parser = PyColorize.Parser(style=color_scheme) | |
285 | self.set_colors(color_scheme) |
|
285 | self.set_colors(color_scheme) | |
286 |
|
286 | |||
287 | # Set the prompt - the default prompt is '(Pdb)' |
|
287 | # Set the prompt - the default prompt is '(Pdb)' | |
288 | self.prompt = prompt |
|
288 | self.prompt = prompt | |
289 |
|
289 | |||
290 | def set_colors(self, scheme): |
|
290 | def set_colors(self, scheme): | |
291 | """Shorthand access to the color table scheme selector method.""" |
|
291 | """Shorthand access to the color table scheme selector method.""" | |
292 | self.color_scheme_table.set_active_scheme(scheme) |
|
292 | self.color_scheme_table.set_active_scheme(scheme) | |
293 | self.parser.style = scheme |
|
293 | self.parser.style = scheme | |
294 |
|
294 | |||
295 | def interaction(self, frame, traceback): |
|
295 | def interaction(self, frame, traceback): | |
296 | try: |
|
296 | try: | |
297 | OldPdb.interaction(self, frame, traceback) |
|
297 | OldPdb.interaction(self, frame, traceback) | |
298 | except KeyboardInterrupt: |
|
298 | except KeyboardInterrupt: | |
299 | sys.stdout.write('\n' + self.shell.get_exception_only()) |
|
299 | sys.stdout.write('\n' + self.shell.get_exception_only()) | |
300 |
|
300 | |||
301 | def new_do_up(self, arg): |
|
301 | def new_do_up(self, arg): | |
302 | OldPdb.do_up(self, arg) |
|
302 | OldPdb.do_up(self, arg) | |
303 | do_u = do_up = decorate_fn_with_doc(new_do_up, OldPdb.do_up) |
|
303 | do_u = do_up = decorate_fn_with_doc(new_do_up, OldPdb.do_up) | |
304 |
|
304 | |||
305 | def new_do_down(self, arg): |
|
305 | def new_do_down(self, arg): | |
306 | OldPdb.do_down(self, arg) |
|
306 | OldPdb.do_down(self, arg) | |
307 |
|
307 | |||
308 | do_d = do_down = decorate_fn_with_doc(new_do_down, OldPdb.do_down) |
|
308 | do_d = do_down = decorate_fn_with_doc(new_do_down, OldPdb.do_down) | |
309 |
|
309 | |||
310 | def new_do_frame(self, arg): |
|
310 | def new_do_frame(self, arg): | |
311 | OldPdb.do_frame(self, arg) |
|
311 | OldPdb.do_frame(self, arg) | |
312 |
|
312 | |||
313 | def new_do_quit(self, arg): |
|
313 | def new_do_quit(self, arg): | |
314 |
|
314 | |||
315 | if hasattr(self, 'old_all_completions'): |
|
315 | if hasattr(self, 'old_all_completions'): | |
316 | self.shell.Completer.all_completions=self.old_all_completions |
|
316 | self.shell.Completer.all_completions=self.old_all_completions | |
317 |
|
317 | |||
318 | return OldPdb.do_quit(self, arg) |
|
318 | return OldPdb.do_quit(self, arg) | |
319 |
|
319 | |||
320 | do_q = do_quit = decorate_fn_with_doc(new_do_quit, OldPdb.do_quit) |
|
320 | do_q = do_quit = decorate_fn_with_doc(new_do_quit, OldPdb.do_quit) | |
321 |
|
321 | |||
322 | def new_do_restart(self, arg): |
|
322 | def new_do_restart(self, arg): | |
323 | """Restart command. In the context of ipython this is exactly the same |
|
323 | """Restart command. In the context of ipython this is exactly the same | |
324 | thing as 'quit'.""" |
|
324 | thing as 'quit'.""" | |
325 | self.msg("Restart doesn't make sense here. Using 'quit' instead.") |
|
325 | self.msg("Restart doesn't make sense here. Using 'quit' instead.") | |
326 | return self.do_quit(arg) |
|
326 | return self.do_quit(arg) | |
327 |
|
327 | |||
328 | def print_stack_trace(self, context=None): |
|
328 | def print_stack_trace(self, context=None): | |
329 | if context is None: |
|
329 | if context is None: | |
330 | context = self.context |
|
330 | context = self.context | |
331 | try: |
|
331 | try: | |
332 | context=int(context) |
|
332 | context=int(context) | |
333 | if context <= 0: |
|
333 | if context <= 0: | |
334 | raise ValueError("Context must be a positive integer") |
|
334 | raise ValueError("Context must be a positive integer") | |
335 | except (TypeError, ValueError): |
|
335 | except (TypeError, ValueError): | |
336 | raise ValueError("Context must be a positive integer") |
|
336 | raise ValueError("Context must be a positive integer") | |
337 | try: |
|
337 | try: | |
338 | for frame_lineno in self.stack: |
|
338 | for frame_lineno in self.stack: | |
339 | self.print_stack_entry(frame_lineno, context=context) |
|
339 | self.print_stack_entry(frame_lineno, context=context) | |
340 | except KeyboardInterrupt: |
|
340 | except KeyboardInterrupt: | |
341 | pass |
|
341 | pass | |
342 |
|
342 | |||
343 | def print_stack_entry(self,frame_lineno, prompt_prefix='\n-> ', |
|
343 | def print_stack_entry(self,frame_lineno, prompt_prefix='\n-> ', | |
344 | context=None): |
|
344 | context=None): | |
345 | if context is None: |
|
345 | if context is None: | |
346 | context = self.context |
|
346 | context = self.context | |
347 | try: |
|
347 | try: | |
348 | context=int(context) |
|
348 | context=int(context) | |
349 | if context <= 0: |
|
349 | if context <= 0: | |
350 | raise ValueError("Context must be a positive integer") |
|
350 | raise ValueError("Context must be a positive integer") | |
351 | except (TypeError, ValueError): |
|
351 | except (TypeError, ValueError): | |
352 | raise ValueError("Context must be a positive integer") |
|
352 | raise ValueError("Context must be a positive integer") | |
353 | print(self.format_stack_entry(frame_lineno, '', context)) |
|
353 | print(self.format_stack_entry(frame_lineno, '', context)) | |
354 |
|
354 | |||
355 | # vds: >> |
|
355 | # vds: >> | |
356 | frame, lineno = frame_lineno |
|
356 | frame, lineno = frame_lineno | |
357 | filename = frame.f_code.co_filename |
|
357 | filename = frame.f_code.co_filename | |
358 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) |
|
358 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) | |
359 | # vds: << |
|
359 | # vds: << | |
360 |
|
360 | |||
361 | def format_stack_entry(self, frame_lineno, lprefix=': ', context=None): |
|
361 | def format_stack_entry(self, frame_lineno, lprefix=': ', context=None): | |
362 | if context is None: |
|
362 | if context is None: | |
363 | context = self.context |
|
363 | context = self.context | |
364 | try: |
|
364 | try: | |
365 | context=int(context) |
|
365 | context=int(context) | |
366 | if context <= 0: |
|
366 | if context <= 0: | |
367 | print("Context must be a positive integer") |
|
367 | print("Context must be a positive integer") | |
368 | except (TypeError, ValueError): |
|
368 | except (TypeError, ValueError): | |
369 | print("Context must be a positive integer") |
|
369 | print("Context must be a positive integer") | |
370 | try: |
|
370 | try: | |
371 | import reprlib # Py 3 |
|
371 | import reprlib # Py 3 | |
372 | except ImportError: |
|
372 | except ImportError: | |
373 | import repr as reprlib # Py 2 |
|
373 | import repr as reprlib # Py 2 | |
374 |
|
374 | |||
375 | ret = [] |
|
375 | ret = [] | |
376 |
|
376 | |||
377 | Colors = self.color_scheme_table.active_colors |
|
377 | Colors = self.color_scheme_table.active_colors | |
378 | ColorsNormal = Colors.Normal |
|
378 | ColorsNormal = Colors.Normal | |
379 | tpl_link = u'%s%%s%s' % (Colors.filenameEm, ColorsNormal) |
|
379 | tpl_link = u'%s%%s%s' % (Colors.filenameEm, ColorsNormal) | |
380 | tpl_call = u'%s%%s%s%%s%s' % (Colors.vName, Colors.valEm, ColorsNormal) |
|
380 | tpl_call = u'%s%%s%s%%s%s' % (Colors.vName, Colors.valEm, ColorsNormal) | |
381 | tpl_line = u'%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) |
|
381 | tpl_line = u'%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) | |
382 | tpl_line_em = u'%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, |
|
382 | tpl_line_em = u'%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, | |
383 | ColorsNormal) |
|
383 | ColorsNormal) | |
384 |
|
384 | |||
385 | frame, lineno = frame_lineno |
|
385 | frame, lineno = frame_lineno | |
386 |
|
386 | |||
387 | return_value = '' |
|
387 | return_value = '' | |
388 | if '__return__' in frame.f_locals: |
|
388 | if '__return__' in frame.f_locals: | |
389 | rv = frame.f_locals['__return__'] |
|
389 | rv = frame.f_locals['__return__'] | |
390 | #return_value += '->' |
|
390 | #return_value += '->' | |
391 | return_value += reprlib.repr(rv) + '\n' |
|
391 | return_value += reprlib.repr(rv) + '\n' | |
392 | ret.append(return_value) |
|
392 | ret.append(return_value) | |
393 |
|
393 | |||
394 | #s = filename + '(' + `lineno` + ')' |
|
394 | #s = filename + '(' + `lineno` + ')' | |
395 | filename = self.canonic(frame.f_code.co_filename) |
|
395 | filename = self.canonic(frame.f_code.co_filename) | |
396 | link = tpl_link % py3compat.cast_unicode(filename) |
|
396 | link = tpl_link % py3compat.cast_unicode(filename) | |
397 |
|
397 | |||
398 | if frame.f_code.co_name: |
|
398 | if frame.f_code.co_name: | |
399 | func = frame.f_code.co_name |
|
399 | func = frame.f_code.co_name | |
400 | else: |
|
400 | else: | |
401 | func = "<lambda>" |
|
401 | func = "<lambda>" | |
402 |
|
402 | |||
403 | call = '' |
|
403 | call = '' | |
404 | if func != '?': |
|
404 | if func != '?': | |
405 | if '__args__' in frame.f_locals: |
|
405 | if '__args__' in frame.f_locals: | |
406 | args = reprlib.repr(frame.f_locals['__args__']) |
|
406 | args = reprlib.repr(frame.f_locals['__args__']) | |
407 | else: |
|
407 | else: | |
408 | args = '()' |
|
408 | args = '()' | |
409 | call = tpl_call % (func, args) |
|
409 | call = tpl_call % (func, args) | |
410 |
|
410 | |||
411 | # The level info should be generated in the same format pdb uses, to |
|
411 | # The level info should be generated in the same format pdb uses, to | |
412 | # avoid breaking the pdbtrack functionality of python-mode in *emacs. |
|
412 | # avoid breaking the pdbtrack functionality of python-mode in *emacs. | |
413 | if frame is self.curframe: |
|
413 | if frame is self.curframe: | |
414 | ret.append('> ') |
|
414 | ret.append('> ') | |
415 | else: |
|
415 | else: | |
416 | ret.append(' ') |
|
416 | ret.append(' ') | |
417 | ret.append(u'%s(%s)%s\n' % (link,lineno,call)) |
|
417 | ret.append(u'%s(%s)%s\n' % (link,lineno,call)) | |
418 |
|
418 | |||
419 | start = lineno - 1 - context//2 |
|
419 | start = lineno - 1 - context//2 | |
420 | lines = linecache.getlines(filename) |
|
420 | lines = linecache.getlines(filename) | |
421 | start = min(start, len(lines) - context) |
|
421 | start = min(start, len(lines) - context) | |
422 | start = max(start, 0) |
|
422 | start = max(start, 0) | |
423 | lines = lines[start : start + context] |
|
423 | lines = lines[start : start + context] | |
424 |
|
424 | |||
425 | for i,line in enumerate(lines): |
|
425 | for i,line in enumerate(lines): | |
426 | show_arrow = (start + 1 + i == lineno) |
|
426 | show_arrow = (start + 1 + i == lineno) | |
427 | linetpl = (frame is self.curframe or show_arrow) \ |
|
427 | linetpl = (frame is self.curframe or show_arrow) \ | |
428 | and tpl_line_em \ |
|
428 | and tpl_line_em \ | |
429 | or tpl_line |
|
429 | or tpl_line | |
430 | ret.append(self.__format_line(linetpl, filename, |
|
430 | ret.append(self.__format_line(linetpl, filename, | |
431 | start + 1 + i, line, |
|
431 | start + 1 + i, line, | |
432 | arrow = show_arrow) ) |
|
432 | arrow = show_arrow) ) | |
433 | return ''.join(ret) |
|
433 | return ''.join(ret) | |
434 |
|
434 | |||
435 | def __format_line(self, tpl_line, filename, lineno, line, arrow = False): |
|
435 | def __format_line(self, tpl_line, filename, lineno, line, arrow = False): | |
436 | bp_mark = "" |
|
436 | bp_mark = "" | |
437 | bp_mark_color = "" |
|
437 | bp_mark_color = "" | |
438 |
|
438 | |||
439 | new_line, err = self.parser.format2(line, 'str') |
|
439 | new_line, err = self.parser.format2(line, 'str') | |
440 | if not err: |
|
440 | if not err: | |
441 | line = new_line |
|
441 | line = new_line | |
442 |
|
442 | |||
443 | bp = None |
|
443 | bp = None | |
444 | if lineno in self.get_file_breaks(filename): |
|
444 | if lineno in self.get_file_breaks(filename): | |
445 | bps = self.get_breaks(filename, lineno) |
|
445 | bps = self.get_breaks(filename, lineno) | |
446 | bp = bps[-1] |
|
446 | bp = bps[-1] | |
447 |
|
447 | |||
448 | if bp: |
|
448 | if bp: | |
449 | Colors = self.color_scheme_table.active_colors |
|
449 | Colors = self.color_scheme_table.active_colors | |
450 | bp_mark = str(bp.number) |
|
450 | bp_mark = str(bp.number) | |
451 | bp_mark_color = Colors.breakpoint_enabled |
|
451 | bp_mark_color = Colors.breakpoint_enabled | |
452 | if not bp.enabled: |
|
452 | if not bp.enabled: | |
453 | bp_mark_color = Colors.breakpoint_disabled |
|
453 | bp_mark_color = Colors.breakpoint_disabled | |
454 |
|
454 | |||
455 | numbers_width = 7 |
|
455 | numbers_width = 7 | |
456 | if arrow: |
|
456 | if arrow: | |
457 | # This is the line with the error |
|
457 | # This is the line with the error | |
458 | pad = numbers_width - len(str(lineno)) - len(bp_mark) |
|
458 | pad = numbers_width - len(str(lineno)) - len(bp_mark) | |
459 | num = '%s%s' % (make_arrow(pad), str(lineno)) |
|
459 | num = '%s%s' % (make_arrow(pad), str(lineno)) | |
460 | else: |
|
460 | else: | |
461 | num = '%*s' % (numbers_width - len(bp_mark), str(lineno)) |
|
461 | num = '%*s' % (numbers_width - len(bp_mark), str(lineno)) | |
462 |
|
462 | |||
463 | return tpl_line % (bp_mark_color + bp_mark, num, line) |
|
463 | return tpl_line % (bp_mark_color + bp_mark, num, line) | |
464 |
|
464 | |||
465 |
|
465 | |||
466 | def print_list_lines(self, filename, first, last): |
|
466 | def print_list_lines(self, filename, first, last): | |
467 | """The printing (as opposed to the parsing part of a 'list' |
|
467 | """The printing (as opposed to the parsing part of a 'list' | |
468 | command.""" |
|
468 | command.""" | |
469 | try: |
|
469 | try: | |
470 | Colors = self.color_scheme_table.active_colors |
|
470 | Colors = self.color_scheme_table.active_colors | |
471 | ColorsNormal = Colors.Normal |
|
471 | ColorsNormal = Colors.Normal | |
472 | tpl_line = '%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) |
|
472 | tpl_line = '%%s%s%%s %s%%s' % (Colors.lineno, ColorsNormal) | |
473 | tpl_line_em = '%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, ColorsNormal) |
|
473 | tpl_line_em = '%%s%s%%s %s%%s%s' % (Colors.linenoEm, Colors.line, ColorsNormal) | |
474 | src = [] |
|
474 | src = [] | |
475 | if filename == "<string>" and hasattr(self, "_exec_filename"): |
|
475 | if filename == "<string>" and hasattr(self, "_exec_filename"): | |
476 | filename = self._exec_filename |
|
476 | filename = self._exec_filename | |
477 |
|
477 | |||
478 | for lineno in range(first, last+1): |
|
478 | for lineno in range(first, last+1): | |
479 | line = linecache.getline(filename, lineno) |
|
479 | line = linecache.getline(filename, lineno) | |
480 | if not line: |
|
480 | if not line: | |
481 | break |
|
481 | break | |
482 |
|
482 | |||
483 | if lineno == self.curframe.f_lineno: |
|
483 | if lineno == self.curframe.f_lineno: | |
484 | line = self.__format_line(tpl_line_em, filename, lineno, line, arrow = True) |
|
484 | line = self.__format_line(tpl_line_em, filename, lineno, line, arrow = True) | |
485 | else: |
|
485 | else: | |
486 | line = self.__format_line(tpl_line, filename, lineno, line, arrow = False) |
|
486 | line = self.__format_line(tpl_line, filename, lineno, line, arrow = False) | |
487 |
|
487 | |||
488 | src.append(line) |
|
488 | src.append(line) | |
489 | self.lineno = lineno |
|
489 | self.lineno = lineno | |
490 |
|
490 | |||
491 | print(''.join(src)) |
|
491 | print(''.join(src)) | |
492 |
|
492 | |||
493 | except KeyboardInterrupt: |
|
493 | except KeyboardInterrupt: | |
494 | pass |
|
494 | pass | |
495 |
|
495 | |||
496 | def do_list(self, arg): |
|
496 | def do_list(self, arg): | |
497 | """Print lines of code from the current stack frame |
|
497 | """Print lines of code from the current stack frame | |
498 | """ |
|
498 | """ | |
499 | self.lastcmd = 'list' |
|
499 | self.lastcmd = 'list' | |
500 | last = None |
|
500 | last = None | |
501 | if arg: |
|
501 | if arg: | |
502 | try: |
|
502 | try: | |
503 | x = eval(arg, {}, {}) |
|
503 | x = eval(arg, {}, {}) | |
504 | if type(x) == type(()): |
|
504 | if type(x) == type(()): | |
505 | first, last = x |
|
505 | first, last = x | |
506 | first = int(first) |
|
506 | first = int(first) | |
507 | last = int(last) |
|
507 | last = int(last) | |
508 | if last < first: |
|
508 | if last < first: | |
509 | # Assume it's a count |
|
509 | # Assume it's a count | |
510 | last = first + last |
|
510 | last = first + last | |
511 | else: |
|
511 | else: | |
512 | first = max(1, int(x) - 5) |
|
512 | first = max(1, int(x) - 5) | |
513 | except: |
|
513 | except: | |
514 | print('*** Error in argument:', repr(arg)) |
|
514 | print('*** Error in argument:', repr(arg)) | |
515 | return |
|
515 | return | |
516 | elif self.lineno is None: |
|
516 | elif self.lineno is None: | |
517 | first = max(1, self.curframe.f_lineno - 5) |
|
517 | first = max(1, self.curframe.f_lineno - 5) | |
518 | else: |
|
518 | else: | |
519 | first = self.lineno + 1 |
|
519 | first = self.lineno + 1 | |
520 | if last is None: |
|
520 | if last is None: | |
521 | last = first + 10 |
|
521 | last = first + 10 | |
522 | self.print_list_lines(self.curframe.f_code.co_filename, first, last) |
|
522 | self.print_list_lines(self.curframe.f_code.co_filename, first, last) | |
523 |
|
523 | |||
524 | # vds: >> |
|
524 | # vds: >> | |
525 | lineno = first |
|
525 | lineno = first | |
526 | filename = self.curframe.f_code.co_filename |
|
526 | filename = self.curframe.f_code.co_filename | |
527 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) |
|
527 | self.shell.hooks.synchronize_with_editor(filename, lineno, 0) | |
528 | # vds: << |
|
528 | # vds: << | |
529 |
|
529 | |||
530 | do_l = do_list |
|
530 | do_l = do_list | |
531 |
|
531 | |||
532 | def getsourcelines(self, obj): |
|
532 | def getsourcelines(self, obj): | |
533 | lines, lineno = inspect.findsource(obj) |
|
533 | lines, lineno = inspect.findsource(obj) | |
534 | if inspect.isframe(obj) and obj.f_globals is obj.f_locals: |
|
534 | if inspect.isframe(obj) and obj.f_globals is obj.f_locals: | |
535 | # must be a module frame: do not try to cut a block out of it |
|
535 | # must be a module frame: do not try to cut a block out of it | |
536 | return lines, 1 |
|
536 | return lines, 1 | |
537 | elif inspect.ismodule(obj): |
|
537 | elif inspect.ismodule(obj): | |
538 | return lines, 1 |
|
538 | return lines, 1 | |
539 | return inspect.getblock(lines[lineno:]), lineno+1 |
|
539 | return inspect.getblock(lines[lineno:]), lineno+1 | |
540 |
|
540 | |||
541 | def do_longlist(self, arg): |
|
541 | def do_longlist(self, arg): | |
542 | """Print lines of code from the current stack frame. |
|
542 | """Print lines of code from the current stack frame. | |
543 |
|
543 | |||
544 | Shows more lines than 'list' does. |
|
544 | Shows more lines than 'list' does. | |
545 | """ |
|
545 | """ | |
546 | self.lastcmd = 'longlist' |
|
546 | self.lastcmd = 'longlist' | |
547 | try: |
|
547 | try: | |
548 | lines, lineno = self.getsourcelines(self.curframe) |
|
548 | lines, lineno = self.getsourcelines(self.curframe) | |
549 | except OSError as err: |
|
549 | except OSError as err: | |
550 | self.error(err) |
|
550 | self.error(err) | |
551 | return |
|
551 | return | |
552 | last = lineno + len(lines) |
|
552 | last = lineno + len(lines) | |
553 | self.print_list_lines(self.curframe.f_code.co_filename, lineno, last) |
|
553 | self.print_list_lines(self.curframe.f_code.co_filename, lineno, last) | |
554 | do_ll = do_longlist |
|
554 | do_ll = do_longlist | |
555 |
|
555 | |||
556 | def do_debug(self, arg): |
|
556 | def do_debug(self, arg): | |
557 | """debug code |
|
557 | """debug code | |
558 | Enter a recursive debugger that steps through the code |
|
558 | Enter a recursive debugger that steps through the code | |
559 | argument (which is an arbitrary expression or statement to be |
|
559 | argument (which is an arbitrary expression or statement to be | |
560 | executed in the current environment). |
|
560 | executed in the current environment). | |
561 | """ |
|
561 | """ | |
562 | sys.settrace(None) |
|
562 | sys.settrace(None) | |
563 | globals = self.curframe.f_globals |
|
563 | globals = self.curframe.f_globals | |
564 | locals = self.curframe_locals |
|
564 | locals = self.curframe_locals | |
565 | p = self.__class__(completekey=self.completekey, |
|
565 | p = self.__class__(completekey=self.completekey, | |
566 | stdin=self.stdin, stdout=self.stdout) |
|
566 | stdin=self.stdin, stdout=self.stdout) | |
567 | p.use_rawinput = self.use_rawinput |
|
567 | p.use_rawinput = self.use_rawinput | |
568 | p.prompt = "(%s) " % self.prompt.strip() |
|
568 | p.prompt = "(%s) " % self.prompt.strip() | |
569 | self.message("ENTERING RECURSIVE DEBUGGER") |
|
569 | self.message("ENTERING RECURSIVE DEBUGGER") | |
570 | sys.call_tracing(p.run, (arg, globals, locals)) |
|
570 | sys.call_tracing(p.run, (arg, globals, locals)) | |
571 | self.message("LEAVING RECURSIVE DEBUGGER") |
|
571 | self.message("LEAVING RECURSIVE DEBUGGER") | |
572 | sys.settrace(self.trace_dispatch) |
|
572 | sys.settrace(self.trace_dispatch) | |
573 | self.lastcmd = p.lastcmd |
|
573 | self.lastcmd = p.lastcmd | |
574 |
|
574 | |||
575 | def do_pdef(self, arg): |
|
575 | def do_pdef(self, arg): | |
576 | """Print the call signature for any callable object. |
|
576 | """Print the call signature for any callable object. | |
577 |
|
577 | |||
578 | The debugger interface to %pdef""" |
|
578 | The debugger interface to %pdef""" | |
579 | namespaces = [('Locals', self.curframe.f_locals), |
|
579 | namespaces = [('Locals', self.curframe.f_locals), | |
580 | ('Globals', self.curframe.f_globals)] |
|
580 | ('Globals', self.curframe.f_globals)] | |
581 | self.shell.find_line_magic('pdef')(arg, namespaces=namespaces) |
|
581 | self.shell.find_line_magic('pdef')(arg, namespaces=namespaces) | |
582 |
|
582 | |||
583 | def do_pdoc(self, arg): |
|
583 | def do_pdoc(self, arg): | |
584 | """Print the docstring for an object. |
|
584 | """Print the docstring for an object. | |
585 |
|
585 | |||
586 | The debugger interface to %pdoc.""" |
|
586 | The debugger interface to %pdoc.""" | |
587 | namespaces = [('Locals', self.curframe.f_locals), |
|
587 | namespaces = [('Locals', self.curframe.f_locals), | |
588 | ('Globals', self.curframe.f_globals)] |
|
588 | ('Globals', self.curframe.f_globals)] | |
589 | self.shell.find_line_magic('pdoc')(arg, namespaces=namespaces) |
|
589 | self.shell.find_line_magic('pdoc')(arg, namespaces=namespaces) | |
590 |
|
590 | |||
591 | def do_pfile(self, arg): |
|
591 | def do_pfile(self, arg): | |
592 | """Print (or run through pager) the file where an object is defined. |
|
592 | """Print (or run through pager) the file where an object is defined. | |
593 |
|
593 | |||
594 | The debugger interface to %pfile. |
|
594 | The debugger interface to %pfile. | |
595 | """ |
|
595 | """ | |
596 | namespaces = [('Locals', self.curframe.f_locals), |
|
596 | namespaces = [('Locals', self.curframe.f_locals), | |
597 | ('Globals', self.curframe.f_globals)] |
|
597 | ('Globals', self.curframe.f_globals)] | |
598 | self.shell.find_line_magic('pfile')(arg, namespaces=namespaces) |
|
598 | self.shell.find_line_magic('pfile')(arg, namespaces=namespaces) | |
599 |
|
599 | |||
600 | def do_pinfo(self, arg): |
|
600 | def do_pinfo(self, arg): | |
601 | """Provide detailed information about an object. |
|
601 | """Provide detailed information about an object. | |
602 |
|
602 | |||
603 | The debugger interface to %pinfo, i.e., obj?.""" |
|
603 | The debugger interface to %pinfo, i.e., obj?.""" | |
604 | namespaces = [('Locals', self.curframe.f_locals), |
|
604 | namespaces = [('Locals', self.curframe.f_locals), | |
605 | ('Globals', self.curframe.f_globals)] |
|
605 | ('Globals', self.curframe.f_globals)] | |
606 | self.shell.find_line_magic('pinfo')(arg, namespaces=namespaces) |
|
606 | self.shell.find_line_magic('pinfo')(arg, namespaces=namespaces) | |
607 |
|
607 | |||
608 | def do_pinfo2(self, arg): |
|
608 | def do_pinfo2(self, arg): | |
609 | """Provide extra detailed information about an object. |
|
609 | """Provide extra detailed information about an object. | |
610 |
|
610 | |||
611 | The debugger interface to %pinfo2, i.e., obj??.""" |
|
611 | The debugger interface to %pinfo2, i.e., obj??.""" | |
612 | namespaces = [('Locals', self.curframe.f_locals), |
|
612 | namespaces = [('Locals', self.curframe.f_locals), | |
613 | ('Globals', self.curframe.f_globals)] |
|
613 | ('Globals', self.curframe.f_globals)] | |
614 | self.shell.find_line_magic('pinfo2')(arg, namespaces=namespaces) |
|
614 | self.shell.find_line_magic('pinfo2')(arg, namespaces=namespaces) | |
615 |
|
615 | |||
616 | def do_psource(self, arg): |
|
616 | def do_psource(self, arg): | |
617 | """Print (or run through pager) the source code for an object.""" |
|
617 | """Print (or run through pager) the source code for an object.""" | |
618 | namespaces = [('Locals', self.curframe.f_locals), |
|
618 | namespaces = [('Locals', self.curframe.f_locals), | |
619 | ('Globals', self.curframe.f_globals)] |
|
619 | ('Globals', self.curframe.f_globals)] | |
620 | self.shell.find_line_magic('psource')(arg, namespaces=namespaces) |
|
620 | self.shell.find_line_magic('psource')(arg, namespaces=namespaces) | |
621 |
|
621 | |||
622 | def do_where(self, arg): |
|
622 | def do_where(self, arg): | |
623 | """w(here) |
|
623 | """w(here) | |
624 | Print a stack trace, with the most recent frame at the bottom. |
|
624 | Print a stack trace, with the most recent frame at the bottom. | |
625 | An arrow indicates the "current frame", which determines the |
|
625 | An arrow indicates the "current frame", which determines the | |
626 | context of most commands. 'bt' is an alias for this command. |
|
626 | context of most commands. 'bt' is an alias for this command. | |
627 |
|
627 | |||
628 | Take a number as argument as an (optional) number of context line to |
|
628 | Take a number as argument as an (optional) number of context line to | |
629 | print""" |
|
629 | print""" | |
630 | if arg: |
|
630 | if arg: | |
631 | context = int(arg) |
|
631 | context = int(arg) | |
632 | self.print_stack_trace(context) |
|
632 | self.print_stack_trace(context) | |
633 | else: |
|
633 | else: | |
634 | self.print_stack_trace() |
|
634 | self.print_stack_trace() | |
635 |
|
635 | |||
636 | do_w = do_where |
|
636 | do_w = do_where | |
637 |
|
637 | |||
638 |
|
638 | |||
639 | def set_trace(frame=None): |
|
639 | def set_trace(frame=None): | |
640 | """ |
|
640 | """ | |
641 | Start debugging from `frame`. |
|
641 | Start debugging from `frame`. | |
642 |
|
642 | |||
643 | If frame is not specified, debugging starts from caller's frame. |
|
643 | If frame is not specified, debugging starts from caller's frame. | |
644 | """ |
|
644 | """ | |
645 | Pdb().set_trace(frame or sys._getframe().f_back) |
|
645 | Pdb().set_trace(frame or sys._getframe().f_back) |
@@ -1,438 +1,438 b'' | |||||
1 | # encoding: utf-8 |
|
1 | # encoding: utf-8 | |
2 | """ |
|
2 | """ | |
3 | Utilities for path handling. |
|
3 | Utilities for path handling. | |
4 | """ |
|
4 | """ | |
5 |
|
5 | |||
6 | # Copyright (c) IPython Development Team. |
|
6 | # Copyright (c) IPython Development Team. | |
7 | # Distributed under the terms of the Modified BSD License. |
|
7 | # Distributed under the terms of the Modified BSD License. | |
8 |
|
8 | |||
9 | import os |
|
9 | import os | |
10 | import sys |
|
10 | import sys | |
11 | import errno |
|
11 | import errno | |
12 | import shutil |
|
12 | import shutil | |
13 | import random |
|
13 | import random | |
14 | import glob |
|
14 | import glob | |
15 | from warnings import warn |
|
15 | from warnings import warn | |
16 |
|
16 | |||
17 | from IPython.utils.process import system |
|
17 | from IPython.utils.process import system | |
18 | from IPython.utils import py3compat |
|
18 | from IPython.utils import py3compat | |
19 | from IPython.utils.decorators import undoc |
|
19 | from IPython.utils.decorators import undoc | |
20 |
|
20 | |||
21 | #----------------------------------------------------------------------------- |
|
21 | #----------------------------------------------------------------------------- | |
22 | # Code |
|
22 | # Code | |
23 | #----------------------------------------------------------------------------- |
|
23 | #----------------------------------------------------------------------------- | |
24 |
|
24 | |||
25 | fs_encoding = sys.getfilesystemencoding() |
|
25 | fs_encoding = sys.getfilesystemencoding() | |
26 |
|
26 | |||
27 | def _writable_dir(path): |
|
27 | def _writable_dir(path): | |
28 | """Whether `path` is a directory, to which the user has write access.""" |
|
28 | """Whether `path` is a directory, to which the user has write access.""" | |
29 | return os.path.isdir(path) and os.access(path, os.W_OK) |
|
29 | return os.path.isdir(path) and os.access(path, os.W_OK) | |
30 |
|
30 | |||
31 | if sys.platform == 'win32': |
|
31 | if sys.platform == 'win32': | |
32 | def _get_long_path_name(path): |
|
32 | def _get_long_path_name(path): | |
33 | """Get a long path name (expand ~) on Windows using ctypes. |
|
33 | """Get a long path name (expand ~) on Windows using ctypes. | |
34 |
|
34 | |||
35 | Examples |
|
35 | Examples | |
36 | -------- |
|
36 | -------- | |
37 |
|
37 | |||
38 | >>> get_long_path_name('c:\\docume~1') |
|
38 | >>> get_long_path_name('c:\\docume~1') | |
39 | 'c:\\\\Documents and Settings' |
|
39 | 'c:\\\\Documents and Settings' | |
40 |
|
40 | |||
41 | """ |
|
41 | """ | |
42 | try: |
|
42 | try: | |
43 | import ctypes |
|
43 | import ctypes | |
44 | except ImportError: |
|
44 | except ImportError: | |
45 | raise ImportError('you need to have ctypes installed for this to work') |
|
45 | raise ImportError('you need to have ctypes installed for this to work') | |
46 | _GetLongPathName = ctypes.windll.kernel32.GetLongPathNameW |
|
46 | _GetLongPathName = ctypes.windll.kernel32.GetLongPathNameW | |
47 | _GetLongPathName.argtypes = [ctypes.c_wchar_p, ctypes.c_wchar_p, |
|
47 | _GetLongPathName.argtypes = [ctypes.c_wchar_p, ctypes.c_wchar_p, | |
48 | ctypes.c_uint ] |
|
48 | ctypes.c_uint ] | |
49 |
|
49 | |||
50 | buf = ctypes.create_unicode_buffer(260) |
|
50 | buf = ctypes.create_unicode_buffer(260) | |
51 | rv = _GetLongPathName(path, buf, 260) |
|
51 | rv = _GetLongPathName(path, buf, 260) | |
52 | if rv == 0 or rv > 260: |
|
52 | if rv == 0 or rv > 260: | |
53 | return path |
|
53 | return path | |
54 | else: |
|
54 | else: | |
55 | return buf.value |
|
55 | return buf.value | |
56 | else: |
|
56 | else: | |
57 | def _get_long_path_name(path): |
|
57 | def _get_long_path_name(path): | |
58 | """Dummy no-op.""" |
|
58 | """Dummy no-op.""" | |
59 | return path |
|
59 | return path | |
60 |
|
60 | |||
61 |
|
61 | |||
62 |
|
62 | |||
63 | def get_long_path_name(path): |
|
63 | def get_long_path_name(path): | |
64 | """Expand a path into its long form. |
|
64 | """Expand a path into its long form. | |
65 |
|
65 | |||
66 | On Windows this expands any ~ in the paths. On other platforms, it is |
|
66 | On Windows this expands any ~ in the paths. On other platforms, it is | |
67 | a null operation. |
|
67 | a null operation. | |
68 | """ |
|
68 | """ | |
69 | return _get_long_path_name(path) |
|
69 | return _get_long_path_name(path) | |
70 |
|
70 | |||
71 |
|
71 | |||
72 | def unquote_filename(name, win32=(sys.platform=='win32')): |
|
72 | def unquote_filename(name, win32=(sys.platform=='win32')): | |
73 | """ On Windows, remove leading and trailing quotes from filenames. |
|
73 | """ On Windows, remove leading and trailing quotes from filenames. | |
74 |
|
74 | |||
75 | This function has been deprecated and should not be used any more: |
|
75 | This function has been deprecated and should not be used any more: | |
76 | unquoting is now taken care of by :func:`IPython.utils.process.arg_split`. |
|
76 | unquoting is now taken care of by :func:`IPython.utils.process.arg_split`. | |
77 | """ |
|
77 | """ | |
78 | warn("'unquote_filename' is deprecated since IPython 5.0 and should not " |
|
78 | warn("'unquote_filename' is deprecated since IPython 5.0 and should not " | |
79 | "be used anymore", DeprecationWarning, stacklevel=2) |
|
79 | "be used anymore", DeprecationWarning, stacklevel=2) | |
80 | if win32: |
|
80 | if win32: | |
81 | if name.startswith(("'", '"')) and name.endswith(("'", '"')): |
|
81 | if name.startswith(("'", '"')) and name.endswith(("'", '"')): | |
82 | name = name[1:-1] |
|
82 | name = name[1:-1] | |
83 | return name |
|
83 | return name | |
84 |
|
84 | |||
85 |
|
85 | |||
86 | def compress_user(path): |
|
86 | def compress_user(path): | |
87 | """Reverse of :func:`os.path.expanduser` |
|
87 | """Reverse of :func:`os.path.expanduser` | |
88 | """ |
|
88 | """ | |
89 | home = os.path.expanduser('~') |
|
89 | home = os.path.expanduser('~') | |
90 | if path.startswith(home): |
|
90 | if path.startswith(home): | |
91 | path = "~" + path[len(home):] |
|
91 | path = "~" + path[len(home):] | |
92 | return path |
|
92 | return path | |
93 |
|
93 | |||
94 | def get_py_filename(name, force_win32=None): |
|
94 | def get_py_filename(name, force_win32=None): | |
95 | """Return a valid python filename in the current directory. |
|
95 | """Return a valid python filename in the current directory. | |
96 |
|
96 | |||
97 | If the given name is not a file, it adds '.py' and searches again. |
|
97 | If the given name is not a file, it adds '.py' and searches again. | |
98 | Raises IOError with an informative message if the file isn't found. |
|
98 | Raises IOError with an informative message if the file isn't found. | |
99 | """ |
|
99 | """ | |
100 |
|
100 | |||
101 | name = os.path.expanduser(name) |
|
101 | name = os.path.expanduser(name) | |
102 | if force_win32 is not None: |
|
102 | if force_win32 is not None: | |
103 | warn("The 'force_win32' argument to 'get_py_filename' is deprecated " |
|
103 | warn("The 'force_win32' argument to 'get_py_filename' is deprecated " | |
104 | "since IPython 5.0 and should not be used anymore", |
|
104 | "since IPython 5.0 and should not be used anymore", | |
105 | DeprecationWarning, stacklevel=2) |
|
105 | DeprecationWarning, stacklevel=2) | |
106 | if not os.path.isfile(name) and not name.endswith('.py'): |
|
106 | if not os.path.isfile(name) and not name.endswith('.py'): | |
107 | name += '.py' |
|
107 | name += '.py' | |
108 | if os.path.isfile(name): |
|
108 | if os.path.isfile(name): | |
109 | return name |
|
109 | return name | |
110 | else: |
|
110 | else: | |
111 | raise IOError('File `%r` not found.' % name) |
|
111 | raise IOError('File `%r` not found.' % name) | |
112 |
|
112 | |||
113 |
|
113 | |||
114 | def filefind(filename, path_dirs=None): |
|
114 | def filefind(filename, path_dirs=None): | |
115 | """Find a file by looking through a sequence of paths. |
|
115 | """Find a file by looking through a sequence of paths. | |
116 |
|
116 | |||
117 | This iterates through a sequence of paths looking for a file and returns |
|
117 | This iterates through a sequence of paths looking for a file and returns | |
118 | the full, absolute path of the first occurrence of the file. If no set of |
|
118 | the full, absolute path of the first occurrence of the file. If no set of | |
119 | path dirs is given, the filename is tested as is, after running through |
|
119 | path dirs is given, the filename is tested as is, after running through | |
120 | :func:`expandvars` and :func:`expanduser`. Thus a simple call:: |
|
120 | :func:`expandvars` and :func:`expanduser`. Thus a simple call:: | |
121 |
|
121 | |||
122 | filefind('myfile.txt') |
|
122 | filefind('myfile.txt') | |
123 |
|
123 | |||
124 | will find the file in the current working dir, but:: |
|
124 | will find the file in the current working dir, but:: | |
125 |
|
125 | |||
126 | filefind('~/myfile.txt') |
|
126 | filefind('~/myfile.txt') | |
127 |
|
127 | |||
128 | Will find the file in the users home directory. This function does not |
|
128 | Will find the file in the users home directory. This function does not | |
129 | automatically try any paths, such as the cwd or the user's home directory. |
|
129 | automatically try any paths, such as the cwd or the user's home directory. | |
130 |
|
130 | |||
131 | Parameters |
|
131 | Parameters | |
132 | ---------- |
|
132 | ---------- | |
133 | filename : str |
|
133 | filename : str | |
134 | The filename to look for. |
|
134 | The filename to look for. | |
135 | path_dirs : str, None or sequence of str |
|
135 | path_dirs : str, None or sequence of str | |
136 | The sequence of paths to look for the file in. If None, the filename |
|
136 | The sequence of paths to look for the file in. If None, the filename | |
137 | need to be absolute or be in the cwd. If a string, the string is |
|
137 | need to be absolute or be in the cwd. If a string, the string is | |
138 | put into a sequence and the searched. If a sequence, walk through |
|
138 | put into a sequence and the searched. If a sequence, walk through | |
139 | each element and join with ``filename``, calling :func:`expandvars` |
|
139 | each element and join with ``filename``, calling :func:`expandvars` | |
140 | and :func:`expanduser` before testing for existence. |
|
140 | and :func:`expanduser` before testing for existence. | |
141 |
|
141 | |||
142 | Returns |
|
142 | Returns | |
143 | ------- |
|
143 | ------- | |
144 | Raises :exc:`IOError` or returns absolute path to file. |
|
144 | Raises :exc:`IOError` or returns absolute path to file. | |
145 | """ |
|
145 | """ | |
146 |
|
146 | |||
147 | # If paths are quoted, abspath gets confused, strip them... |
|
147 | # If paths are quoted, abspath gets confused, strip them... | |
148 | filename = filename.strip('"').strip("'") |
|
148 | filename = filename.strip('"').strip("'") | |
149 | # If the input is an absolute path, just check it exists |
|
149 | # If the input is an absolute path, just check it exists | |
150 | if os.path.isabs(filename) and os.path.isfile(filename): |
|
150 | if os.path.isabs(filename) and os.path.isfile(filename): | |
151 | return filename |
|
151 | return filename | |
152 |
|
152 | |||
153 | if path_dirs is None: |
|
153 | if path_dirs is None: | |
154 | path_dirs = ("",) |
|
154 | path_dirs = ("",) | |
155 | elif isinstance(path_dirs, str): |
|
155 | elif isinstance(path_dirs, str): | |
156 | path_dirs = (path_dirs,) |
|
156 | path_dirs = (path_dirs,) | |
157 |
|
157 | |||
158 | for path in path_dirs: |
|
158 | for path in path_dirs: | |
159 | if path == '.': path = os.getcwd() |
|
159 | if path == '.': path = os.getcwd() | |
160 | testname = expand_path(os.path.join(path, filename)) |
|
160 | testname = expand_path(os.path.join(path, filename)) | |
161 | if os.path.isfile(testname): |
|
161 | if os.path.isfile(testname): | |
162 | return os.path.abspath(testname) |
|
162 | return os.path.abspath(testname) | |
163 |
|
163 | |||
164 | raise IOError("File %r does not exist in any of the search paths: %r" % |
|
164 | raise IOError("File %r does not exist in any of the search paths: %r" % | |
165 | (filename, path_dirs) ) |
|
165 | (filename, path_dirs) ) | |
166 |
|
166 | |||
167 |
|
167 | |||
168 | class HomeDirError(Exception): |
|
168 | class HomeDirError(Exception): | |
169 | pass |
|
169 | pass | |
170 |
|
170 | |||
171 |
|
171 | |||
172 | def get_home_dir(require_writable=False): |
|
172 | def get_home_dir(require_writable=False): | |
173 | """Return the 'home' directory, as a unicode string. |
|
173 | """Return the 'home' directory, as a unicode string. | |
174 |
|
174 | |||
175 | Uses os.path.expanduser('~'), and checks for writability. |
|
175 | Uses os.path.expanduser('~'), and checks for writability. | |
176 |
|
176 | |||
177 | See stdlib docs for how this is determined. |
|
177 | See stdlib docs for how this is determined. | |
178 | $HOME is first priority on *ALL* platforms. |
|
178 | $HOME is first priority on *ALL* platforms. | |
179 |
|
179 | |||
180 | Parameters |
|
180 | Parameters | |
181 | ---------- |
|
181 | ---------- | |
182 |
|
182 | |||
183 | require_writable : bool [default: False] |
|
183 | require_writable : bool [default: False] | |
184 | if True: |
|
184 | if True: | |
185 | guarantees the return value is a writable directory, otherwise |
|
185 | guarantees the return value is a writable directory, otherwise | |
186 | raises HomeDirError |
|
186 | raises HomeDirError | |
187 | if False: |
|
187 | if False: | |
188 | The path is resolved, but it is not guaranteed to exist or be writable. |
|
188 | The path is resolved, but it is not guaranteed to exist or be writable. | |
189 | """ |
|
189 | """ | |
190 |
|
190 | |||
191 | homedir = os.path.expanduser('~') |
|
191 | homedir = os.path.expanduser('~') | |
192 | # Next line will make things work even when /home/ is a symlink to |
|
192 | # Next line will make things work even when /home/ is a symlink to | |
193 | # /usr/home as it is on FreeBSD, for example |
|
193 | # /usr/home as it is on FreeBSD, for example | |
194 | homedir = os.path.realpath(homedir) |
|
194 | homedir = os.path.realpath(homedir) | |
195 |
|
195 | |||
196 | if not _writable_dir(homedir) and os.name == 'nt': |
|
196 | if not _writable_dir(homedir) and os.name == 'nt': | |
197 | # expanduser failed, use the registry to get the 'My Documents' folder. |
|
197 | # expanduser failed, use the registry to get the 'My Documents' folder. | |
198 | try: |
|
198 | try: | |
199 | try: |
|
199 | try: | |
200 | import winreg as wreg # Py 3 |
|
200 | import winreg as wreg # Py 3 | |
201 | except ImportError: |
|
201 | except ImportError: | |
202 | import _winreg as wreg # Py 2 |
|
202 | import _winreg as wreg # Py 2 | |
203 | key = wreg.OpenKey( |
|
203 | key = wreg.OpenKey( | |
204 | wreg.HKEY_CURRENT_USER, |
|
204 | wreg.HKEY_CURRENT_USER, | |
205 | "Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" |
|
205 | r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders" | |
206 | ) |
|
206 | ) | |
207 | homedir = wreg.QueryValueEx(key,'Personal')[0] |
|
207 | homedir = wreg.QueryValueEx(key,'Personal')[0] | |
208 | key.Close() |
|
208 | key.Close() | |
209 | except: |
|
209 | except: | |
210 | pass |
|
210 | pass | |
211 |
|
211 | |||
212 | if (not require_writable) or _writable_dir(homedir): |
|
212 | if (not require_writable) or _writable_dir(homedir): | |
213 | return py3compat.cast_unicode(homedir, fs_encoding) |
|
213 | return py3compat.cast_unicode(homedir, fs_encoding) | |
214 | else: |
|
214 | else: | |
215 | raise HomeDirError('%s is not a writable dir, ' |
|
215 | raise HomeDirError('%s is not a writable dir, ' | |
216 | 'set $HOME environment variable to override' % homedir) |
|
216 | 'set $HOME environment variable to override' % homedir) | |
217 |
|
217 | |||
218 | def get_xdg_dir(): |
|
218 | def get_xdg_dir(): | |
219 | """Return the XDG_CONFIG_HOME, if it is defined and exists, else None. |
|
219 | """Return the XDG_CONFIG_HOME, if it is defined and exists, else None. | |
220 |
|
220 | |||
221 | This is only for non-OS X posix (Linux,Unix,etc.) systems. |
|
221 | This is only for non-OS X posix (Linux,Unix,etc.) systems. | |
222 | """ |
|
222 | """ | |
223 |
|
223 | |||
224 | env = os.environ |
|
224 | env = os.environ | |
225 |
|
225 | |||
226 | if os.name == 'posix' and sys.platform != 'darwin': |
|
226 | if os.name == 'posix' and sys.platform != 'darwin': | |
227 | # Linux, Unix, AIX, etc. |
|
227 | # Linux, Unix, AIX, etc. | |
228 | # use ~/.config if empty OR not set |
|
228 | # use ~/.config if empty OR not set | |
229 | xdg = env.get("XDG_CONFIG_HOME", None) or os.path.join(get_home_dir(), '.config') |
|
229 | xdg = env.get("XDG_CONFIG_HOME", None) or os.path.join(get_home_dir(), '.config') | |
230 | if xdg and _writable_dir(xdg): |
|
230 | if xdg and _writable_dir(xdg): | |
231 | return py3compat.cast_unicode(xdg, fs_encoding) |
|
231 | return py3compat.cast_unicode(xdg, fs_encoding) | |
232 |
|
232 | |||
233 | return None |
|
233 | return None | |
234 |
|
234 | |||
235 |
|
235 | |||
236 | def get_xdg_cache_dir(): |
|
236 | def get_xdg_cache_dir(): | |
237 | """Return the XDG_CACHE_HOME, if it is defined and exists, else None. |
|
237 | """Return the XDG_CACHE_HOME, if it is defined and exists, else None. | |
238 |
|
238 | |||
239 | This is only for non-OS X posix (Linux,Unix,etc.) systems. |
|
239 | This is only for non-OS X posix (Linux,Unix,etc.) systems. | |
240 | """ |
|
240 | """ | |
241 |
|
241 | |||
242 | env = os.environ |
|
242 | env = os.environ | |
243 |
|
243 | |||
244 | if os.name == 'posix' and sys.platform != 'darwin': |
|
244 | if os.name == 'posix' and sys.platform != 'darwin': | |
245 | # Linux, Unix, AIX, etc. |
|
245 | # Linux, Unix, AIX, etc. | |
246 | # use ~/.cache if empty OR not set |
|
246 | # use ~/.cache if empty OR not set | |
247 | xdg = env.get("XDG_CACHE_HOME", None) or os.path.join(get_home_dir(), '.cache') |
|
247 | xdg = env.get("XDG_CACHE_HOME", None) or os.path.join(get_home_dir(), '.cache') | |
248 | if xdg and _writable_dir(xdg): |
|
248 | if xdg and _writable_dir(xdg): | |
249 | return py3compat.cast_unicode(xdg, fs_encoding) |
|
249 | return py3compat.cast_unicode(xdg, fs_encoding) | |
250 |
|
250 | |||
251 | return None |
|
251 | return None | |
252 |
|
252 | |||
253 |
|
253 | |||
254 | @undoc |
|
254 | @undoc | |
255 | def get_ipython_dir(): |
|
255 | def get_ipython_dir(): | |
256 | warn("get_ipython_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) |
|
256 | warn("get_ipython_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) | |
257 | from IPython.paths import get_ipython_dir |
|
257 | from IPython.paths import get_ipython_dir | |
258 | return get_ipython_dir() |
|
258 | return get_ipython_dir() | |
259 |
|
259 | |||
260 | @undoc |
|
260 | @undoc | |
261 | def get_ipython_cache_dir(): |
|
261 | def get_ipython_cache_dir(): | |
262 | warn("get_ipython_cache_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) |
|
262 | warn("get_ipython_cache_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) | |
263 | from IPython.paths import get_ipython_cache_dir |
|
263 | from IPython.paths import get_ipython_cache_dir | |
264 | return get_ipython_cache_dir() |
|
264 | return get_ipython_cache_dir() | |
265 |
|
265 | |||
266 | @undoc |
|
266 | @undoc | |
267 | def get_ipython_package_dir(): |
|
267 | def get_ipython_package_dir(): | |
268 | warn("get_ipython_package_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) |
|
268 | warn("get_ipython_package_dir has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) | |
269 | from IPython.paths import get_ipython_package_dir |
|
269 | from IPython.paths import get_ipython_package_dir | |
270 | return get_ipython_package_dir() |
|
270 | return get_ipython_package_dir() | |
271 |
|
271 | |||
272 | @undoc |
|
272 | @undoc | |
273 | def get_ipython_module_path(module_str): |
|
273 | def get_ipython_module_path(module_str): | |
274 | warn("get_ipython_module_path has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) |
|
274 | warn("get_ipython_module_path has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) | |
275 | from IPython.paths import get_ipython_module_path |
|
275 | from IPython.paths import get_ipython_module_path | |
276 | return get_ipython_module_path(module_str) |
|
276 | return get_ipython_module_path(module_str) | |
277 |
|
277 | |||
278 | @undoc |
|
278 | @undoc | |
279 | def locate_profile(profile='default'): |
|
279 | def locate_profile(profile='default'): | |
280 | warn("locate_profile has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) |
|
280 | warn("locate_profile has moved to the IPython.paths module since IPython 4.0.", stacklevel=2) | |
281 | from IPython.paths import locate_profile |
|
281 | from IPython.paths import locate_profile | |
282 | return locate_profile(profile=profile) |
|
282 | return locate_profile(profile=profile) | |
283 |
|
283 | |||
284 | def expand_path(s): |
|
284 | def expand_path(s): | |
285 | """Expand $VARS and ~names in a string, like a shell |
|
285 | """Expand $VARS and ~names in a string, like a shell | |
286 |
|
286 | |||
287 | :Examples: |
|
287 | :Examples: | |
288 |
|
288 | |||
289 | In [2]: os.environ['FOO']='test' |
|
289 | In [2]: os.environ['FOO']='test' | |
290 |
|
290 | |||
291 | In [3]: expand_path('variable FOO is $FOO') |
|
291 | In [3]: expand_path('variable FOO is $FOO') | |
292 | Out[3]: 'variable FOO is test' |
|
292 | Out[3]: 'variable FOO is test' | |
293 | """ |
|
293 | """ | |
294 | # This is a pretty subtle hack. When expand user is given a UNC path |
|
294 | # This is a pretty subtle hack. When expand user is given a UNC path | |
295 | # on Windows (\\server\share$\%username%), os.path.expandvars, removes |
|
295 | # on Windows (\\server\share$\%username%), os.path.expandvars, removes | |
296 | # the $ to get (\\server\share\%username%). I think it considered $ |
|
296 | # the $ to get (\\server\share\%username%). I think it considered $ | |
297 | # alone an empty var. But, we need the $ to remains there (it indicates |
|
297 | # alone an empty var. But, we need the $ to remains there (it indicates | |
298 | # a hidden share). |
|
298 | # a hidden share). | |
299 | if os.name=='nt': |
|
299 | if os.name=='nt': | |
300 | s = s.replace('$\\', 'IPYTHON_TEMP') |
|
300 | s = s.replace('$\\', 'IPYTHON_TEMP') | |
301 | s = os.path.expandvars(os.path.expanduser(s)) |
|
301 | s = os.path.expandvars(os.path.expanduser(s)) | |
302 | if os.name=='nt': |
|
302 | if os.name=='nt': | |
303 | s = s.replace('IPYTHON_TEMP', '$\\') |
|
303 | s = s.replace('IPYTHON_TEMP', '$\\') | |
304 | return s |
|
304 | return s | |
305 |
|
305 | |||
306 |
|
306 | |||
307 | def unescape_glob(string): |
|
307 | def unescape_glob(string): | |
308 | """Unescape glob pattern in `string`.""" |
|
308 | """Unescape glob pattern in `string`.""" | |
309 | def unescape(s): |
|
309 | def unescape(s): | |
310 | for pattern in '*[]!?': |
|
310 | for pattern in '*[]!?': | |
311 | s = s.replace(r'\{0}'.format(pattern), pattern) |
|
311 | s = s.replace(r'\{0}'.format(pattern), pattern) | |
312 | return s |
|
312 | return s | |
313 | return '\\'.join(map(unescape, string.split('\\\\'))) |
|
313 | return '\\'.join(map(unescape, string.split('\\\\'))) | |
314 |
|
314 | |||
315 |
|
315 | |||
316 | def shellglob(args): |
|
316 | def shellglob(args): | |
317 | """ |
|
317 | """ | |
318 | Do glob expansion for each element in `args` and return a flattened list. |
|
318 | Do glob expansion for each element in `args` and return a flattened list. | |
319 |
|
319 | |||
320 | Unmatched glob pattern will remain as-is in the returned list. |
|
320 | Unmatched glob pattern will remain as-is in the returned list. | |
321 |
|
321 | |||
322 | """ |
|
322 | """ | |
323 | expanded = [] |
|
323 | expanded = [] | |
324 | # Do not unescape backslash in Windows as it is interpreted as |
|
324 | # Do not unescape backslash in Windows as it is interpreted as | |
325 | # path separator: |
|
325 | # path separator: | |
326 | unescape = unescape_glob if sys.platform != 'win32' else lambda x: x |
|
326 | unescape = unescape_glob if sys.platform != 'win32' else lambda x: x | |
327 | for a in args: |
|
327 | for a in args: | |
328 | expanded.extend(glob.glob(a) or [unescape(a)]) |
|
328 | expanded.extend(glob.glob(a) or [unescape(a)]) | |
329 | return expanded |
|
329 | return expanded | |
330 |
|
330 | |||
331 |
|
331 | |||
332 | def target_outdated(target,deps): |
|
332 | def target_outdated(target,deps): | |
333 | """Determine whether a target is out of date. |
|
333 | """Determine whether a target is out of date. | |
334 |
|
334 | |||
335 | target_outdated(target,deps) -> 1/0 |
|
335 | target_outdated(target,deps) -> 1/0 | |
336 |
|
336 | |||
337 | deps: list of filenames which MUST exist. |
|
337 | deps: list of filenames which MUST exist. | |
338 | target: single filename which may or may not exist. |
|
338 | target: single filename which may or may not exist. | |
339 |
|
339 | |||
340 | If target doesn't exist or is older than any file listed in deps, return |
|
340 | If target doesn't exist or is older than any file listed in deps, return | |
341 | true, otherwise return false. |
|
341 | true, otherwise return false. | |
342 | """ |
|
342 | """ | |
343 | try: |
|
343 | try: | |
344 | target_time = os.path.getmtime(target) |
|
344 | target_time = os.path.getmtime(target) | |
345 | except os.error: |
|
345 | except os.error: | |
346 | return 1 |
|
346 | return 1 | |
347 | for dep in deps: |
|
347 | for dep in deps: | |
348 | dep_time = os.path.getmtime(dep) |
|
348 | dep_time = os.path.getmtime(dep) | |
349 | if dep_time > target_time: |
|
349 | if dep_time > target_time: | |
350 | #print "For target",target,"Dep failed:",dep # dbg |
|
350 | #print "For target",target,"Dep failed:",dep # dbg | |
351 | #print "times (dep,tar):",dep_time,target_time # dbg |
|
351 | #print "times (dep,tar):",dep_time,target_time # dbg | |
352 | return 1 |
|
352 | return 1 | |
353 | return 0 |
|
353 | return 0 | |
354 |
|
354 | |||
355 |
|
355 | |||
356 | def target_update(target,deps,cmd): |
|
356 | def target_update(target,deps,cmd): | |
357 | """Update a target with a given command given a list of dependencies. |
|
357 | """Update a target with a given command given a list of dependencies. | |
358 |
|
358 | |||
359 | target_update(target,deps,cmd) -> runs cmd if target is outdated. |
|
359 | target_update(target,deps,cmd) -> runs cmd if target is outdated. | |
360 |
|
360 | |||
361 | This is just a wrapper around target_outdated() which calls the given |
|
361 | This is just a wrapper around target_outdated() which calls the given | |
362 | command if target is outdated.""" |
|
362 | command if target is outdated.""" | |
363 |
|
363 | |||
364 | if target_outdated(target,deps): |
|
364 | if target_outdated(target,deps): | |
365 | system(cmd) |
|
365 | system(cmd) | |
366 |
|
366 | |||
367 |
|
367 | |||
368 | ENOLINK = 1998 |
|
368 | ENOLINK = 1998 | |
369 |
|
369 | |||
370 | def link(src, dst): |
|
370 | def link(src, dst): | |
371 | """Hard links ``src`` to ``dst``, returning 0 or errno. |
|
371 | """Hard links ``src`` to ``dst``, returning 0 or errno. | |
372 |
|
372 | |||
373 | Note that the special errno ``ENOLINK`` will be returned if ``os.link`` isn't |
|
373 | Note that the special errno ``ENOLINK`` will be returned if ``os.link`` isn't | |
374 | supported by the operating system. |
|
374 | supported by the operating system. | |
375 | """ |
|
375 | """ | |
376 |
|
376 | |||
377 | if not hasattr(os, "link"): |
|
377 | if not hasattr(os, "link"): | |
378 | return ENOLINK |
|
378 | return ENOLINK | |
379 | link_errno = 0 |
|
379 | link_errno = 0 | |
380 | try: |
|
380 | try: | |
381 | os.link(src, dst) |
|
381 | os.link(src, dst) | |
382 | except OSError as e: |
|
382 | except OSError as e: | |
383 | link_errno = e.errno |
|
383 | link_errno = e.errno | |
384 | return link_errno |
|
384 | return link_errno | |
385 |
|
385 | |||
386 |
|
386 | |||
387 | def link_or_copy(src, dst): |
|
387 | def link_or_copy(src, dst): | |
388 | """Attempts to hardlink ``src`` to ``dst``, copying if the link fails. |
|
388 | """Attempts to hardlink ``src`` to ``dst``, copying if the link fails. | |
389 |
|
389 | |||
390 | Attempts to maintain the semantics of ``shutil.copy``. |
|
390 | Attempts to maintain the semantics of ``shutil.copy``. | |
391 |
|
391 | |||
392 | Because ``os.link`` does not overwrite files, a unique temporary file |
|
392 | Because ``os.link`` does not overwrite files, a unique temporary file | |
393 | will be used if the target already exists, then that file will be moved |
|
393 | will be used if the target already exists, then that file will be moved | |
394 | into place. |
|
394 | into place. | |
395 | """ |
|
395 | """ | |
396 |
|
396 | |||
397 | if os.path.isdir(dst): |
|
397 | if os.path.isdir(dst): | |
398 | dst = os.path.join(dst, os.path.basename(src)) |
|
398 | dst = os.path.join(dst, os.path.basename(src)) | |
399 |
|
399 | |||
400 | link_errno = link(src, dst) |
|
400 | link_errno = link(src, dst) | |
401 | if link_errno == errno.EEXIST: |
|
401 | if link_errno == errno.EEXIST: | |
402 | if os.stat(src).st_ino == os.stat(dst).st_ino: |
|
402 | if os.stat(src).st_ino == os.stat(dst).st_ino: | |
403 | # dst is already a hard link to the correct file, so we don't need |
|
403 | # dst is already a hard link to the correct file, so we don't need | |
404 | # to do anything else. If we try to link and rename the file |
|
404 | # to do anything else. If we try to link and rename the file | |
405 | # anyway, we get duplicate files - see http://bugs.python.org/issue21876 |
|
405 | # anyway, we get duplicate files - see http://bugs.python.org/issue21876 | |
406 | return |
|
406 | return | |
407 |
|
407 | |||
408 | new_dst = dst + "-temp-%04X" %(random.randint(1, 16**4), ) |
|
408 | new_dst = dst + "-temp-%04X" %(random.randint(1, 16**4), ) | |
409 | try: |
|
409 | try: | |
410 | link_or_copy(src, new_dst) |
|
410 | link_or_copy(src, new_dst) | |
411 | except: |
|
411 | except: | |
412 | try: |
|
412 | try: | |
413 | os.remove(new_dst) |
|
413 | os.remove(new_dst) | |
414 | except OSError: |
|
414 | except OSError: | |
415 | pass |
|
415 | pass | |
416 | raise |
|
416 | raise | |
417 | os.rename(new_dst, dst) |
|
417 | os.rename(new_dst, dst) | |
418 | elif link_errno != 0: |
|
418 | elif link_errno != 0: | |
419 | # Either link isn't supported, or the filesystem doesn't support |
|
419 | # Either link isn't supported, or the filesystem doesn't support | |
420 | # linking, or 'src' and 'dst' are on different filesystems. |
|
420 | # linking, or 'src' and 'dst' are on different filesystems. | |
421 | shutil.copy(src, dst) |
|
421 | shutil.copy(src, dst) | |
422 |
|
422 | |||
423 | def ensure_dir_exists(path, mode=0o755): |
|
423 | def ensure_dir_exists(path, mode=0o755): | |
424 | """ensure that a directory exists |
|
424 | """ensure that a directory exists | |
425 |
|
425 | |||
426 | If it doesn't exist, try to create it and protect against a race condition |
|
426 | If it doesn't exist, try to create it and protect against a race condition | |
427 | if another process is doing the same. |
|
427 | if another process is doing the same. | |
428 |
|
428 | |||
429 | The default permissions are 755, which differ from os.makedirs default of 777. |
|
429 | The default permissions are 755, which differ from os.makedirs default of 777. | |
430 | """ |
|
430 | """ | |
431 | if not os.path.exists(path): |
|
431 | if not os.path.exists(path): | |
432 | try: |
|
432 | try: | |
433 | os.makedirs(path, mode=mode) |
|
433 | os.makedirs(path, mode=mode) | |
434 | except OSError as e: |
|
434 | except OSError as e: | |
435 | if e.errno != errno.EEXIST: |
|
435 | if e.errno != errno.EEXIST: | |
436 | raise |
|
436 | raise | |
437 | elif not os.path.isdir(path): |
|
437 | elif not os.path.isdir(path): | |
438 | raise IOError("%r exists but is not a directory" % path) |
|
438 | raise IOError("%r exists but is not a directory" % path) |
@@ -1,772 +1,772 b'' | |||||
1 | # encoding: utf-8 |
|
1 | # encoding: utf-8 | |
2 | """ |
|
2 | """ | |
3 | Utilities for working with strings and text. |
|
3 | Utilities for working with strings and text. | |
4 |
|
4 | |||
5 | Inheritance diagram: |
|
5 | Inheritance diagram: | |
6 |
|
6 | |||
7 | .. inheritance-diagram:: IPython.utils.text |
|
7 | .. inheritance-diagram:: IPython.utils.text | |
8 | :parts: 3 |
|
8 | :parts: 3 | |
9 | """ |
|
9 | """ | |
10 |
|
10 | |||
11 | import os |
|
11 | import os | |
12 | import re |
|
12 | import re | |
13 | import sys |
|
13 | import sys | |
14 | import textwrap |
|
14 | import textwrap | |
15 | from string import Formatter |
|
15 | from string import Formatter | |
16 | from pathlib import Path |
|
16 | from pathlib import Path | |
17 |
|
17 | |||
18 | from IPython.utils import py3compat |
|
18 | from IPython.utils import py3compat | |
19 |
|
19 | |||
20 | # datetime.strftime date format for ipython |
|
20 | # datetime.strftime date format for ipython | |
21 | if sys.platform == 'win32': |
|
21 | if sys.platform == 'win32': | |
22 | date_format = "%B %d, %Y" |
|
22 | date_format = "%B %d, %Y" | |
23 | else: |
|
23 | else: | |
24 | date_format = "%B %-d, %Y" |
|
24 | date_format = "%B %-d, %Y" | |
25 |
|
25 | |||
26 | class LSString(str): |
|
26 | class LSString(str): | |
27 | """String derivative with a special access attributes. |
|
27 | """String derivative with a special access attributes. | |
28 |
|
28 | |||
29 | These are normal strings, but with the special attributes: |
|
29 | These are normal strings, but with the special attributes: | |
30 |
|
30 | |||
31 | .l (or .list) : value as list (split on newlines). |
|
31 | .l (or .list) : value as list (split on newlines). | |
32 | .n (or .nlstr): original value (the string itself). |
|
32 | .n (or .nlstr): original value (the string itself). | |
33 | .s (or .spstr): value as whitespace-separated string. |
|
33 | .s (or .spstr): value as whitespace-separated string. | |
34 | .p (or .paths): list of path objects (requires path.py package) |
|
34 | .p (or .paths): list of path objects (requires path.py package) | |
35 |
|
35 | |||
36 | Any values which require transformations are computed only once and |
|
36 | Any values which require transformations are computed only once and | |
37 | cached. |
|
37 | cached. | |
38 |
|
38 | |||
39 | Such strings are very useful to efficiently interact with the shell, which |
|
39 | Such strings are very useful to efficiently interact with the shell, which | |
40 | typically only understands whitespace-separated options for commands.""" |
|
40 | typically only understands whitespace-separated options for commands.""" | |
41 |
|
41 | |||
42 | def get_list(self): |
|
42 | def get_list(self): | |
43 | try: |
|
43 | try: | |
44 | return self.__list |
|
44 | return self.__list | |
45 | except AttributeError: |
|
45 | except AttributeError: | |
46 | self.__list = self.split('\n') |
|
46 | self.__list = self.split('\n') | |
47 | return self.__list |
|
47 | return self.__list | |
48 |
|
48 | |||
49 | l = list = property(get_list) |
|
49 | l = list = property(get_list) | |
50 |
|
50 | |||
51 | def get_spstr(self): |
|
51 | def get_spstr(self): | |
52 | try: |
|
52 | try: | |
53 | return self.__spstr |
|
53 | return self.__spstr | |
54 | except AttributeError: |
|
54 | except AttributeError: | |
55 | self.__spstr = self.replace('\n',' ') |
|
55 | self.__spstr = self.replace('\n',' ') | |
56 | return self.__spstr |
|
56 | return self.__spstr | |
57 |
|
57 | |||
58 | s = spstr = property(get_spstr) |
|
58 | s = spstr = property(get_spstr) | |
59 |
|
59 | |||
60 | def get_nlstr(self): |
|
60 | def get_nlstr(self): | |
61 | return self |
|
61 | return self | |
62 |
|
62 | |||
63 | n = nlstr = property(get_nlstr) |
|
63 | n = nlstr = property(get_nlstr) | |
64 |
|
64 | |||
65 | def get_paths(self): |
|
65 | def get_paths(self): | |
66 | try: |
|
66 | try: | |
67 | return self.__paths |
|
67 | return self.__paths | |
68 | except AttributeError: |
|
68 | except AttributeError: | |
69 | self.__paths = [Path(p) for p in self.split('\n') if os.path.exists(p)] |
|
69 | self.__paths = [Path(p) for p in self.split('\n') if os.path.exists(p)] | |
70 | return self.__paths |
|
70 | return self.__paths | |
71 |
|
71 | |||
72 | p = paths = property(get_paths) |
|
72 | p = paths = property(get_paths) | |
73 |
|
73 | |||
74 | # FIXME: We need to reimplement type specific displayhook and then add this |
|
74 | # FIXME: We need to reimplement type specific displayhook and then add this | |
75 | # back as a custom printer. This should also be moved outside utils into the |
|
75 | # back as a custom printer. This should also be moved outside utils into the | |
76 | # core. |
|
76 | # core. | |
77 |
|
77 | |||
78 | # def print_lsstring(arg): |
|
78 | # def print_lsstring(arg): | |
79 | # """ Prettier (non-repr-like) and more informative printer for LSString """ |
|
79 | # """ Prettier (non-repr-like) and more informative printer for LSString """ | |
80 | # print "LSString (.p, .n, .l, .s available). Value:" |
|
80 | # print "LSString (.p, .n, .l, .s available). Value:" | |
81 | # print arg |
|
81 | # print arg | |
82 | # |
|
82 | # | |
83 | # |
|
83 | # | |
84 | # print_lsstring = result_display.when_type(LSString)(print_lsstring) |
|
84 | # print_lsstring = result_display.when_type(LSString)(print_lsstring) | |
85 |
|
85 | |||
86 |
|
86 | |||
87 | class SList(list): |
|
87 | class SList(list): | |
88 | """List derivative with a special access attributes. |
|
88 | """List derivative with a special access attributes. | |
89 |
|
89 | |||
90 | These are normal lists, but with the special attributes: |
|
90 | These are normal lists, but with the special attributes: | |
91 |
|
91 | |||
92 | * .l (or .list) : value as list (the list itself). |
|
92 | * .l (or .list) : value as list (the list itself). | |
93 | * .n (or .nlstr): value as a string, joined on newlines. |
|
93 | * .n (or .nlstr): value as a string, joined on newlines. | |
94 | * .s (or .spstr): value as a string, joined on spaces. |
|
94 | * .s (or .spstr): value as a string, joined on spaces. | |
95 | * .p (or .paths): list of path objects (requires path.py package) |
|
95 | * .p (or .paths): list of path objects (requires path.py package) | |
96 |
|
96 | |||
97 | Any values which require transformations are computed only once and |
|
97 | Any values which require transformations are computed only once and | |
98 | cached.""" |
|
98 | cached.""" | |
99 |
|
99 | |||
100 | def get_list(self): |
|
100 | def get_list(self): | |
101 | return self |
|
101 | return self | |
102 |
|
102 | |||
103 | l = list = property(get_list) |
|
103 | l = list = property(get_list) | |
104 |
|
104 | |||
105 | def get_spstr(self): |
|
105 | def get_spstr(self): | |
106 | try: |
|
106 | try: | |
107 | return self.__spstr |
|
107 | return self.__spstr | |
108 | except AttributeError: |
|
108 | except AttributeError: | |
109 | self.__spstr = ' '.join(self) |
|
109 | self.__spstr = ' '.join(self) | |
110 | return self.__spstr |
|
110 | return self.__spstr | |
111 |
|
111 | |||
112 | s = spstr = property(get_spstr) |
|
112 | s = spstr = property(get_spstr) | |
113 |
|
113 | |||
114 | def get_nlstr(self): |
|
114 | def get_nlstr(self): | |
115 | try: |
|
115 | try: | |
116 | return self.__nlstr |
|
116 | return self.__nlstr | |
117 | except AttributeError: |
|
117 | except AttributeError: | |
118 | self.__nlstr = '\n'.join(self) |
|
118 | self.__nlstr = '\n'.join(self) | |
119 | return self.__nlstr |
|
119 | return self.__nlstr | |
120 |
|
120 | |||
121 | n = nlstr = property(get_nlstr) |
|
121 | n = nlstr = property(get_nlstr) | |
122 |
|
122 | |||
123 | def get_paths(self): |
|
123 | def get_paths(self): | |
124 | try: |
|
124 | try: | |
125 | return self.__paths |
|
125 | return self.__paths | |
126 | except AttributeError: |
|
126 | except AttributeError: | |
127 | self.__paths = [Path(p) for p in self if os.path.exists(p)] |
|
127 | self.__paths = [Path(p) for p in self if os.path.exists(p)] | |
128 | return self.__paths |
|
128 | return self.__paths | |
129 |
|
129 | |||
130 | p = paths = property(get_paths) |
|
130 | p = paths = property(get_paths) | |
131 |
|
131 | |||
132 | def grep(self, pattern, prune = False, field = None): |
|
132 | def grep(self, pattern, prune = False, field = None): | |
133 | """ Return all strings matching 'pattern' (a regex or callable) |
|
133 | """ Return all strings matching 'pattern' (a regex or callable) | |
134 |
|
134 | |||
135 | This is case-insensitive. If prune is true, return all items |
|
135 | This is case-insensitive. If prune is true, return all items | |
136 | NOT matching the pattern. |
|
136 | NOT matching the pattern. | |
137 |
|
137 | |||
138 | If field is specified, the match must occur in the specified |
|
138 | If field is specified, the match must occur in the specified | |
139 | whitespace-separated field. |
|
139 | whitespace-separated field. | |
140 |
|
140 | |||
141 | Examples:: |
|
141 | Examples:: | |
142 |
|
142 | |||
143 | a.grep( lambda x: x.startswith('C') ) |
|
143 | a.grep( lambda x: x.startswith('C') ) | |
144 | a.grep('Cha.*log', prune=1) |
|
144 | a.grep('Cha.*log', prune=1) | |
145 | a.grep('chm', field=-1) |
|
145 | a.grep('chm', field=-1) | |
146 | """ |
|
146 | """ | |
147 |
|
147 | |||
148 | def match_target(s): |
|
148 | def match_target(s): | |
149 | if field is None: |
|
149 | if field is None: | |
150 | return s |
|
150 | return s | |
151 | parts = s.split() |
|
151 | parts = s.split() | |
152 | try: |
|
152 | try: | |
153 | tgt = parts[field] |
|
153 | tgt = parts[field] | |
154 | return tgt |
|
154 | return tgt | |
155 | except IndexError: |
|
155 | except IndexError: | |
156 | return "" |
|
156 | return "" | |
157 |
|
157 | |||
158 | if isinstance(pattern, str): |
|
158 | if isinstance(pattern, str): | |
159 | pred = lambda x : re.search(pattern, x, re.IGNORECASE) |
|
159 | pred = lambda x : re.search(pattern, x, re.IGNORECASE) | |
160 | else: |
|
160 | else: | |
161 | pred = pattern |
|
161 | pred = pattern | |
162 | if not prune: |
|
162 | if not prune: | |
163 | return SList([el for el in self if pred(match_target(el))]) |
|
163 | return SList([el for el in self if pred(match_target(el))]) | |
164 | else: |
|
164 | else: | |
165 | return SList([el for el in self if not pred(match_target(el))]) |
|
165 | return SList([el for el in self if not pred(match_target(el))]) | |
166 |
|
166 | |||
167 | def fields(self, *fields): |
|
167 | def fields(self, *fields): | |
168 | """ Collect whitespace-separated fields from string list |
|
168 | """ Collect whitespace-separated fields from string list | |
169 |
|
169 | |||
170 | Allows quick awk-like usage of string lists. |
|
170 | Allows quick awk-like usage of string lists. | |
171 |
|
171 | |||
172 | Example data (in var a, created by 'a = !ls -l'):: |
|
172 | Example data (in var a, created by 'a = !ls -l'):: | |
173 |
|
173 | |||
174 | -rwxrwxrwx 1 ville None 18 Dec 14 2006 ChangeLog |
|
174 | -rwxrwxrwx 1 ville None 18 Dec 14 2006 ChangeLog | |
175 | drwxrwxrwx+ 6 ville None 0 Oct 24 18:05 IPython |
|
175 | drwxrwxrwx+ 6 ville None 0 Oct 24 18:05 IPython | |
176 |
|
176 | |||
177 | * ``a.fields(0)`` is ``['-rwxrwxrwx', 'drwxrwxrwx+']`` |
|
177 | * ``a.fields(0)`` is ``['-rwxrwxrwx', 'drwxrwxrwx+']`` | |
178 | * ``a.fields(1,0)`` is ``['1 -rwxrwxrwx', '6 drwxrwxrwx+']`` |
|
178 | * ``a.fields(1,0)`` is ``['1 -rwxrwxrwx', '6 drwxrwxrwx+']`` | |
179 | (note the joining by space). |
|
179 | (note the joining by space). | |
180 | * ``a.fields(-1)`` is ``['ChangeLog', 'IPython']`` |
|
180 | * ``a.fields(-1)`` is ``['ChangeLog', 'IPython']`` | |
181 |
|
181 | |||
182 | IndexErrors are ignored. |
|
182 | IndexErrors are ignored. | |
183 |
|
183 | |||
184 | Without args, fields() just split()'s the strings. |
|
184 | Without args, fields() just split()'s the strings. | |
185 | """ |
|
185 | """ | |
186 | if len(fields) == 0: |
|
186 | if len(fields) == 0: | |
187 | return [el.split() for el in self] |
|
187 | return [el.split() for el in self] | |
188 |
|
188 | |||
189 | res = SList() |
|
189 | res = SList() | |
190 | for el in [f.split() for f in self]: |
|
190 | for el in [f.split() for f in self]: | |
191 | lineparts = [] |
|
191 | lineparts = [] | |
192 |
|
192 | |||
193 | for fd in fields: |
|
193 | for fd in fields: | |
194 | try: |
|
194 | try: | |
195 | lineparts.append(el[fd]) |
|
195 | lineparts.append(el[fd]) | |
196 | except IndexError: |
|
196 | except IndexError: | |
197 | pass |
|
197 | pass | |
198 | if lineparts: |
|
198 | if lineparts: | |
199 | res.append(" ".join(lineparts)) |
|
199 | res.append(" ".join(lineparts)) | |
200 |
|
200 | |||
201 | return res |
|
201 | return res | |
202 |
|
202 | |||
203 | def sort(self,field= None, nums = False): |
|
203 | def sort(self,field= None, nums = False): | |
204 | """ sort by specified fields (see fields()) |
|
204 | """ sort by specified fields (see fields()) | |
205 |
|
205 | |||
206 | Example:: |
|
206 | Example:: | |
207 |
|
207 | |||
208 | a.sort(1, nums = True) |
|
208 | a.sort(1, nums = True) | |
209 |
|
209 | |||
210 | Sorts a by second field, in numerical order (so that 21 > 3) |
|
210 | Sorts a by second field, in numerical order (so that 21 > 3) | |
211 |
|
211 | |||
212 | """ |
|
212 | """ | |
213 |
|
213 | |||
214 | #decorate, sort, undecorate |
|
214 | #decorate, sort, undecorate | |
215 | if field is not None: |
|
215 | if field is not None: | |
216 | dsu = [[SList([line]).fields(field), line] for line in self] |
|
216 | dsu = [[SList([line]).fields(field), line] for line in self] | |
217 | else: |
|
217 | else: | |
218 | dsu = [[line, line] for line in self] |
|
218 | dsu = [[line, line] for line in self] | |
219 | if nums: |
|
219 | if nums: | |
220 | for i in range(len(dsu)): |
|
220 | for i in range(len(dsu)): | |
221 | numstr = "".join([ch for ch in dsu[i][0] if ch.isdigit()]) |
|
221 | numstr = "".join([ch for ch in dsu[i][0] if ch.isdigit()]) | |
222 | try: |
|
222 | try: | |
223 | n = int(numstr) |
|
223 | n = int(numstr) | |
224 | except ValueError: |
|
224 | except ValueError: | |
225 | n = 0 |
|
225 | n = 0 | |
226 | dsu[i][0] = n |
|
226 | dsu[i][0] = n | |
227 |
|
227 | |||
228 |
|
228 | |||
229 | dsu.sort() |
|
229 | dsu.sort() | |
230 | return SList([t[1] for t in dsu]) |
|
230 | return SList([t[1] for t in dsu]) | |
231 |
|
231 | |||
232 |
|
232 | |||
233 | # FIXME: We need to reimplement type specific displayhook and then add this |
|
233 | # FIXME: We need to reimplement type specific displayhook and then add this | |
234 | # back as a custom printer. This should also be moved outside utils into the |
|
234 | # back as a custom printer. This should also be moved outside utils into the | |
235 | # core. |
|
235 | # core. | |
236 |
|
236 | |||
237 | # def print_slist(arg): |
|
237 | # def print_slist(arg): | |
238 | # """ Prettier (non-repr-like) and more informative printer for SList """ |
|
238 | # """ Prettier (non-repr-like) and more informative printer for SList """ | |
239 | # print "SList (.p, .n, .l, .s, .grep(), .fields(), sort() available):" |
|
239 | # print "SList (.p, .n, .l, .s, .grep(), .fields(), sort() available):" | |
240 | # if hasattr(arg, 'hideonce') and arg.hideonce: |
|
240 | # if hasattr(arg, 'hideonce') and arg.hideonce: | |
241 | # arg.hideonce = False |
|
241 | # arg.hideonce = False | |
242 | # return |
|
242 | # return | |
243 | # |
|
243 | # | |
244 | # nlprint(arg) # This was a nested list printer, now removed. |
|
244 | # nlprint(arg) # This was a nested list printer, now removed. | |
245 | # |
|
245 | # | |
246 | # print_slist = result_display.when_type(SList)(print_slist) |
|
246 | # print_slist = result_display.when_type(SList)(print_slist) | |
247 |
|
247 | |||
248 |
|
248 | |||
249 | def indent(instr,nspaces=4, ntabs=0, flatten=False): |
|
249 | def indent(instr,nspaces=4, ntabs=0, flatten=False): | |
250 | """Indent a string a given number of spaces or tabstops. |
|
250 | """Indent a string a given number of spaces or tabstops. | |
251 |
|
251 | |||
252 | indent(str,nspaces=4,ntabs=0) -> indent str by ntabs+nspaces. |
|
252 | indent(str,nspaces=4,ntabs=0) -> indent str by ntabs+nspaces. | |
253 |
|
253 | |||
254 | Parameters |
|
254 | Parameters | |
255 | ---------- |
|
255 | ---------- | |
256 |
|
256 | |||
257 | instr : basestring |
|
257 | instr : basestring | |
258 | The string to be indented. |
|
258 | The string to be indented. | |
259 | nspaces : int (default: 4) |
|
259 | nspaces : int (default: 4) | |
260 | The number of spaces to be indented. |
|
260 | The number of spaces to be indented. | |
261 | ntabs : int (default: 0) |
|
261 | ntabs : int (default: 0) | |
262 | The number of tabs to be indented. |
|
262 | The number of tabs to be indented. | |
263 | flatten : bool (default: False) |
|
263 | flatten : bool (default: False) | |
264 | Whether to scrub existing indentation. If True, all lines will be |
|
264 | Whether to scrub existing indentation. If True, all lines will be | |
265 | aligned to the same indentation. If False, existing indentation will |
|
265 | aligned to the same indentation. If False, existing indentation will | |
266 | be strictly increased. |
|
266 | be strictly increased. | |
267 |
|
267 | |||
268 | Returns |
|
268 | Returns | |
269 | ------- |
|
269 | ------- | |
270 |
|
270 | |||
271 | str|unicode : string indented by ntabs and nspaces. |
|
271 | str|unicode : string indented by ntabs and nspaces. | |
272 |
|
272 | |||
273 | """ |
|
273 | """ | |
274 | if instr is None: |
|
274 | if instr is None: | |
275 | return |
|
275 | return | |
276 | ind = '\t'*ntabs+' '*nspaces |
|
276 | ind = '\t'*ntabs+' '*nspaces | |
277 | if flatten: |
|
277 | if flatten: | |
278 | pat = re.compile(r'^\s*', re.MULTILINE) |
|
278 | pat = re.compile(r'^\s*', re.MULTILINE) | |
279 | else: |
|
279 | else: | |
280 | pat = re.compile(r'^', re.MULTILINE) |
|
280 | pat = re.compile(r'^', re.MULTILINE) | |
281 | outstr = re.sub(pat, ind, instr) |
|
281 | outstr = re.sub(pat, ind, instr) | |
282 | if outstr.endswith(os.linesep+ind): |
|
282 | if outstr.endswith(os.linesep+ind): | |
283 | return outstr[:-len(ind)] |
|
283 | return outstr[:-len(ind)] | |
284 | else: |
|
284 | else: | |
285 | return outstr |
|
285 | return outstr | |
286 |
|
286 | |||
287 |
|
287 | |||
288 | def list_strings(arg): |
|
288 | def list_strings(arg): | |
289 | """Always return a list of strings, given a string or list of strings |
|
289 | """Always return a list of strings, given a string or list of strings | |
290 | as input. |
|
290 | as input. | |
291 |
|
291 | |||
292 | Examples |
|
292 | Examples | |
293 | -------- |
|
293 | -------- | |
294 | :: |
|
294 | :: | |
295 |
|
295 | |||
296 | In [7]: list_strings('A single string') |
|
296 | In [7]: list_strings('A single string') | |
297 | Out[7]: ['A single string'] |
|
297 | Out[7]: ['A single string'] | |
298 |
|
298 | |||
299 | In [8]: list_strings(['A single string in a list']) |
|
299 | In [8]: list_strings(['A single string in a list']) | |
300 | Out[8]: ['A single string in a list'] |
|
300 | Out[8]: ['A single string in a list'] | |
301 |
|
301 | |||
302 | In [9]: list_strings(['A','list','of','strings']) |
|
302 | In [9]: list_strings(['A','list','of','strings']) | |
303 | Out[9]: ['A', 'list', 'of', 'strings'] |
|
303 | Out[9]: ['A', 'list', 'of', 'strings'] | |
304 | """ |
|
304 | """ | |
305 |
|
305 | |||
306 | if isinstance(arg, str): |
|
306 | if isinstance(arg, str): | |
307 | return [arg] |
|
307 | return [arg] | |
308 | else: |
|
308 | else: | |
309 | return arg |
|
309 | return arg | |
310 |
|
310 | |||
311 |
|
311 | |||
312 | def marquee(txt='',width=78,mark='*'): |
|
312 | def marquee(txt='',width=78,mark='*'): | |
313 | """Return the input string centered in a 'marquee'. |
|
313 | """Return the input string centered in a 'marquee'. | |
314 |
|
314 | |||
315 | Examples |
|
315 | Examples | |
316 | -------- |
|
316 | -------- | |
317 | :: |
|
317 | :: | |
318 |
|
318 | |||
319 | In [16]: marquee('A test',40) |
|
319 | In [16]: marquee('A test',40) | |
320 | Out[16]: '**************** A test ****************' |
|
320 | Out[16]: '**************** A test ****************' | |
321 |
|
321 | |||
322 | In [17]: marquee('A test',40,'-') |
|
322 | In [17]: marquee('A test',40,'-') | |
323 | Out[17]: '---------------- A test ----------------' |
|
323 | Out[17]: '---------------- A test ----------------' | |
324 |
|
324 | |||
325 | In [18]: marquee('A test',40,' ') |
|
325 | In [18]: marquee('A test',40,' ') | |
326 | Out[18]: ' A test ' |
|
326 | Out[18]: ' A test ' | |
327 |
|
327 | |||
328 | """ |
|
328 | """ | |
329 | if not txt: |
|
329 | if not txt: | |
330 | return (mark*width)[:width] |
|
330 | return (mark*width)[:width] | |
331 | nmark = (width-len(txt)-2)//len(mark)//2 |
|
331 | nmark = (width-len(txt)-2)//len(mark)//2 | |
332 | if nmark < 0: nmark =0 |
|
332 | if nmark < 0: nmark =0 | |
333 | marks = mark*nmark |
|
333 | marks = mark*nmark | |
334 | return '%s %s %s' % (marks,txt,marks) |
|
334 | return '%s %s %s' % (marks,txt,marks) | |
335 |
|
335 | |||
336 |
|
336 | |||
337 | ini_spaces_re = re.compile(r'^(\s+)') |
|
337 | ini_spaces_re = re.compile(r'^(\s+)') | |
338 |
|
338 | |||
339 | def num_ini_spaces(strng): |
|
339 | def num_ini_spaces(strng): | |
340 | """Return the number of initial spaces in a string""" |
|
340 | """Return the number of initial spaces in a string""" | |
341 |
|
341 | |||
342 | ini_spaces = ini_spaces_re.match(strng) |
|
342 | ini_spaces = ini_spaces_re.match(strng) | |
343 | if ini_spaces: |
|
343 | if ini_spaces: | |
344 | return ini_spaces.end() |
|
344 | return ini_spaces.end() | |
345 | else: |
|
345 | else: | |
346 | return 0 |
|
346 | return 0 | |
347 |
|
347 | |||
348 |
|
348 | |||
349 | def format_screen(strng): |
|
349 | def format_screen(strng): | |
350 | """Format a string for screen printing. |
|
350 | """Format a string for screen printing. | |
351 |
|
351 | |||
352 | This removes some latex-type format codes.""" |
|
352 | This removes some latex-type format codes.""" | |
353 | # Paragraph continue |
|
353 | # Paragraph continue | |
354 | par_re = re.compile(r'\\$',re.MULTILINE) |
|
354 | par_re = re.compile(r'\\$',re.MULTILINE) | |
355 | strng = par_re.sub('',strng) |
|
355 | strng = par_re.sub('',strng) | |
356 | return strng |
|
356 | return strng | |
357 |
|
357 | |||
358 |
|
358 | |||
359 | def dedent(text): |
|
359 | def dedent(text): | |
360 | """Equivalent of textwrap.dedent that ignores unindented first line. |
|
360 | """Equivalent of textwrap.dedent that ignores unindented first line. | |
361 |
|
361 | |||
362 | This means it will still dedent strings like: |
|
362 | This means it will still dedent strings like: | |
363 | '''foo |
|
363 | '''foo | |
364 | is a bar |
|
364 | is a bar | |
365 | ''' |
|
365 | ''' | |
366 |
|
366 | |||
367 | For use in wrap_paragraphs. |
|
367 | For use in wrap_paragraphs. | |
368 | """ |
|
368 | """ | |
369 |
|
369 | |||
370 | if text.startswith('\n'): |
|
370 | if text.startswith('\n'): | |
371 | # text starts with blank line, don't ignore the first line |
|
371 | # text starts with blank line, don't ignore the first line | |
372 | return textwrap.dedent(text) |
|
372 | return textwrap.dedent(text) | |
373 |
|
373 | |||
374 | # split first line |
|
374 | # split first line | |
375 | splits = text.split('\n',1) |
|
375 | splits = text.split('\n',1) | |
376 | if len(splits) == 1: |
|
376 | if len(splits) == 1: | |
377 | # only one line |
|
377 | # only one line | |
378 | return textwrap.dedent(text) |
|
378 | return textwrap.dedent(text) | |
379 |
|
379 | |||
380 | first, rest = splits |
|
380 | first, rest = splits | |
381 | # dedent everything but the first line |
|
381 | # dedent everything but the first line | |
382 | rest = textwrap.dedent(rest) |
|
382 | rest = textwrap.dedent(rest) | |
383 | return '\n'.join([first, rest]) |
|
383 | return '\n'.join([first, rest]) | |
384 |
|
384 | |||
385 |
|
385 | |||
386 | def wrap_paragraphs(text, ncols=80): |
|
386 | def wrap_paragraphs(text, ncols=80): | |
387 | """Wrap multiple paragraphs to fit a specified width. |
|
387 | """Wrap multiple paragraphs to fit a specified width. | |
388 |
|
388 | |||
389 | This is equivalent to textwrap.wrap, but with support for multiple |
|
389 | This is equivalent to textwrap.wrap, but with support for multiple | |
390 | paragraphs, as separated by empty lines. |
|
390 | paragraphs, as separated by empty lines. | |
391 |
|
391 | |||
392 | Returns |
|
392 | Returns | |
393 | ------- |
|
393 | ------- | |
394 |
|
394 | |||
395 | list of complete paragraphs, wrapped to fill `ncols` columns. |
|
395 | list of complete paragraphs, wrapped to fill `ncols` columns. | |
396 | """ |
|
396 | """ | |
397 | paragraph_re = re.compile(r'\n(\s*\n)+', re.MULTILINE) |
|
397 | paragraph_re = re.compile(r'\n(\s*\n)+', re.MULTILINE) | |
398 | text = dedent(text).strip() |
|
398 | text = dedent(text).strip() | |
399 | paragraphs = paragraph_re.split(text)[::2] # every other entry is space |
|
399 | paragraphs = paragraph_re.split(text)[::2] # every other entry is space | |
400 | out_ps = [] |
|
400 | out_ps = [] | |
401 | indent_re = re.compile(r'\n\s+', re.MULTILINE) |
|
401 | indent_re = re.compile(r'\n\s+', re.MULTILINE) | |
402 | for p in paragraphs: |
|
402 | for p in paragraphs: | |
403 | # presume indentation that survives dedent is meaningful formatting, |
|
403 | # presume indentation that survives dedent is meaningful formatting, | |
404 | # so don't fill unless text is flush. |
|
404 | # so don't fill unless text is flush. | |
405 | if indent_re.search(p) is None: |
|
405 | if indent_re.search(p) is None: | |
406 | # wrap paragraph |
|
406 | # wrap paragraph | |
407 | p = textwrap.fill(p, ncols) |
|
407 | p = textwrap.fill(p, ncols) | |
408 | out_ps.append(p) |
|
408 | out_ps.append(p) | |
409 | return out_ps |
|
409 | return out_ps | |
410 |
|
410 | |||
411 |
|
411 | |||
412 | def long_substr(data): |
|
412 | def long_substr(data): | |
413 | """Return the longest common substring in a list of strings. |
|
413 | """Return the longest common substring in a list of strings. | |
414 |
|
414 | |||
415 | Credit: http://stackoverflow.com/questions/2892931/longest-common-substring-from-more-than-two-strings-python |
|
415 | Credit: http://stackoverflow.com/questions/2892931/longest-common-substring-from-more-than-two-strings-python | |
416 | """ |
|
416 | """ | |
417 | substr = '' |
|
417 | substr = '' | |
418 | if len(data) > 1 and len(data[0]) > 0: |
|
418 | if len(data) > 1 and len(data[0]) > 0: | |
419 | for i in range(len(data[0])): |
|
419 | for i in range(len(data[0])): | |
420 | for j in range(len(data[0])-i+1): |
|
420 | for j in range(len(data[0])-i+1): | |
421 | if j > len(substr) and all(data[0][i:i+j] in x for x in data): |
|
421 | if j > len(substr) and all(data[0][i:i+j] in x for x in data): | |
422 | substr = data[0][i:i+j] |
|
422 | substr = data[0][i:i+j] | |
423 | elif len(data) == 1: |
|
423 | elif len(data) == 1: | |
424 | substr = data[0] |
|
424 | substr = data[0] | |
425 | return substr |
|
425 | return substr | |
426 |
|
426 | |||
427 |
|
427 | |||
428 | def strip_email_quotes(text): |
|
428 | def strip_email_quotes(text): | |
429 | """Strip leading email quotation characters ('>'). |
|
429 | """Strip leading email quotation characters ('>'). | |
430 |
|
430 | |||
431 | Removes any combination of leading '>' interspersed with whitespace that |
|
431 | Removes any combination of leading '>' interspersed with whitespace that | |
432 | appears *identically* in all lines of the input text. |
|
432 | appears *identically* in all lines of the input text. | |
433 |
|
433 | |||
434 | Parameters |
|
434 | Parameters | |
435 | ---------- |
|
435 | ---------- | |
436 | text : str |
|
436 | text : str | |
437 |
|
437 | |||
438 | Examples |
|
438 | Examples | |
439 | -------- |
|
439 | -------- | |
440 |
|
440 | |||
441 | Simple uses:: |
|
441 | Simple uses:: | |
442 |
|
442 | |||
443 | In [2]: strip_email_quotes('> > text') |
|
443 | In [2]: strip_email_quotes('> > text') | |
444 | Out[2]: 'text' |
|
444 | Out[2]: 'text' | |
445 |
|
445 | |||
446 | In [3]: strip_email_quotes('> > text\\n> > more') |
|
446 | In [3]: strip_email_quotes('> > text\\n> > more') | |
447 | Out[3]: 'text\\nmore' |
|
447 | Out[3]: 'text\\nmore' | |
448 |
|
448 | |||
449 | Note how only the common prefix that appears in all lines is stripped:: |
|
449 | Note how only the common prefix that appears in all lines is stripped:: | |
450 |
|
450 | |||
451 | In [4]: strip_email_quotes('> > text\\n> > more\\n> more...') |
|
451 | In [4]: strip_email_quotes('> > text\\n> > more\\n> more...') | |
452 | Out[4]: '> text\\n> more\\nmore...' |
|
452 | Out[4]: '> text\\n> more\\nmore...' | |
453 |
|
453 | |||
454 | So if any line has no quote marks ('>') , then none are stripped from any |
|
454 | So if any line has no quote marks ('>') , then none are stripped from any | |
455 | of them :: |
|
455 | of them :: | |
456 |
|
456 | |||
457 | In [5]: strip_email_quotes('> > text\\n> > more\\nlast different') |
|
457 | In [5]: strip_email_quotes('> > text\\n> > more\\nlast different') | |
458 | Out[5]: '> > text\\n> > more\\nlast different' |
|
458 | Out[5]: '> > text\\n> > more\\nlast different' | |
459 | """ |
|
459 | """ | |
460 | lines = text.splitlines() |
|
460 | lines = text.splitlines() | |
461 | matches = set() |
|
461 | matches = set() | |
462 | for line in lines: |
|
462 | for line in lines: | |
463 | prefix = re.match(r'^(\s*>[ >]*)', line) |
|
463 | prefix = re.match(r'^(\s*>[ >]*)', line) | |
464 | if prefix: |
|
464 | if prefix: | |
465 | matches.add(prefix.group(1)) |
|
465 | matches.add(prefix.group(1)) | |
466 | else: |
|
466 | else: | |
467 | break |
|
467 | break | |
468 | else: |
|
468 | else: | |
469 | prefix = long_substr(list(matches)) |
|
469 | prefix = long_substr(list(matches)) | |
470 | if prefix: |
|
470 | if prefix: | |
471 | strip = len(prefix) |
|
471 | strip = len(prefix) | |
472 | text = '\n'.join([ ln[strip:] for ln in lines]) |
|
472 | text = '\n'.join([ ln[strip:] for ln in lines]) | |
473 | return text |
|
473 | return text | |
474 |
|
474 | |||
475 | def strip_ansi(source): |
|
475 | def strip_ansi(source): | |
476 | """ |
|
476 | """ | |
477 | Remove ansi escape codes from text. |
|
477 | Remove ansi escape codes from text. | |
478 |
|
478 | |||
479 | Parameters |
|
479 | Parameters | |
480 | ---------- |
|
480 | ---------- | |
481 | source : str |
|
481 | source : str | |
482 | Source to remove the ansi from |
|
482 | Source to remove the ansi from | |
483 | """ |
|
483 | """ | |
484 | return re.sub(r'\033\[(\d|;)+?m', '', source) |
|
484 | return re.sub(r'\033\[(\d|;)+?m', '', source) | |
485 |
|
485 | |||
486 |
|
486 | |||
487 | class EvalFormatter(Formatter): |
|
487 | class EvalFormatter(Formatter): | |
488 | """A String Formatter that allows evaluation of simple expressions. |
|
488 | """A String Formatter that allows evaluation of simple expressions. | |
489 |
|
489 | |||
490 | Note that this version interprets a : as specifying a format string (as per |
|
490 | Note that this version interprets a : as specifying a format string (as per | |
491 | standard string formatting), so if slicing is required, you must explicitly |
|
491 | standard string formatting), so if slicing is required, you must explicitly | |
492 | create a slice. |
|
492 | create a slice. | |
493 |
|
493 | |||
494 | This is to be used in templating cases, such as the parallel batch |
|
494 | This is to be used in templating cases, such as the parallel batch | |
495 | script templates, where simple arithmetic on arguments is useful. |
|
495 | script templates, where simple arithmetic on arguments is useful. | |
496 |
|
496 | |||
497 | Examples |
|
497 | Examples | |
498 | -------- |
|
498 | -------- | |
499 | :: |
|
499 | :: | |
500 |
|
500 | |||
501 | In [1]: f = EvalFormatter() |
|
501 | In [1]: f = EvalFormatter() | |
502 | In [2]: f.format('{n//4}', n=8) |
|
502 | In [2]: f.format('{n//4}', n=8) | |
503 | Out[2]: '2' |
|
503 | Out[2]: '2' | |
504 |
|
504 | |||
505 | In [3]: f.format("{greeting[slice(2,4)]}", greeting="Hello") |
|
505 | In [3]: f.format("{greeting[slice(2,4)]}", greeting="Hello") | |
506 | Out[3]: 'll' |
|
506 | Out[3]: 'll' | |
507 | """ |
|
507 | """ | |
508 | def get_field(self, name, args, kwargs): |
|
508 | def get_field(self, name, args, kwargs): | |
509 | v = eval(name, kwargs) |
|
509 | v = eval(name, kwargs) | |
510 | return v, name |
|
510 | return v, name | |
511 |
|
511 | |||
512 | #XXX: As of Python 3.4, the format string parsing no longer splits on a colon |
|
512 | #XXX: As of Python 3.4, the format string parsing no longer splits on a colon | |
513 | # inside [], so EvalFormatter can handle slicing. Once we only support 3.4 and |
|
513 | # inside [], so EvalFormatter can handle slicing. Once we only support 3.4 and | |
514 | # above, it should be possible to remove FullEvalFormatter. |
|
514 | # above, it should be possible to remove FullEvalFormatter. | |
515 |
|
515 | |||
516 | class FullEvalFormatter(Formatter): |
|
516 | class FullEvalFormatter(Formatter): | |
517 | """A String Formatter that allows evaluation of simple expressions. |
|
517 | """A String Formatter that allows evaluation of simple expressions. | |
518 |
|
518 | |||
519 | Any time a format key is not found in the kwargs, |
|
519 | Any time a format key is not found in the kwargs, | |
520 | it will be tried as an expression in the kwargs namespace. |
|
520 | it will be tried as an expression in the kwargs namespace. | |
521 |
|
521 | |||
522 | Note that this version allows slicing using [1:2], so you cannot specify |
|
522 | Note that this version allows slicing using [1:2], so you cannot specify | |
523 | a format string. Use :class:`EvalFormatter` to permit format strings. |
|
523 | a format string. Use :class:`EvalFormatter` to permit format strings. | |
524 |
|
524 | |||
525 | Examples |
|
525 | Examples | |
526 | -------- |
|
526 | -------- | |
527 | :: |
|
527 | :: | |
528 |
|
528 | |||
529 | In [1]: f = FullEvalFormatter() |
|
529 | In [1]: f = FullEvalFormatter() | |
530 | In [2]: f.format('{n//4}', n=8) |
|
530 | In [2]: f.format('{n//4}', n=8) | |
531 | Out[2]: '2' |
|
531 | Out[2]: '2' | |
532 |
|
532 | |||
533 | In [3]: f.format('{list(range(5))[2:4]}') |
|
533 | In [3]: f.format('{list(range(5))[2:4]}') | |
534 | Out[3]: '[2, 3]' |
|
534 | Out[3]: '[2, 3]' | |
535 |
|
535 | |||
536 | In [4]: f.format('{3*2}') |
|
536 | In [4]: f.format('{3*2}') | |
537 | Out[4]: '6' |
|
537 | Out[4]: '6' | |
538 | """ |
|
538 | """ | |
539 | # copied from Formatter._vformat with minor changes to allow eval |
|
539 | # copied from Formatter._vformat with minor changes to allow eval | |
540 | # and replace the format_spec code with slicing |
|
540 | # and replace the format_spec code with slicing | |
541 | def vformat(self, format_string, args, kwargs): |
|
541 | def vformat(self, format_string, args, kwargs): | |
542 | result = [] |
|
542 | result = [] | |
543 | for literal_text, field_name, format_spec, conversion in \ |
|
543 | for literal_text, field_name, format_spec, conversion in \ | |
544 | self.parse(format_string): |
|
544 | self.parse(format_string): | |
545 |
|
545 | |||
546 | # output the literal text |
|
546 | # output the literal text | |
547 | if literal_text: |
|
547 | if literal_text: | |
548 | result.append(literal_text) |
|
548 | result.append(literal_text) | |
549 |
|
549 | |||
550 | # if there's a field, output it |
|
550 | # if there's a field, output it | |
551 | if field_name is not None: |
|
551 | if field_name is not None: | |
552 | # this is some markup, find the object and do |
|
552 | # this is some markup, find the object and do | |
553 | # the formatting |
|
553 | # the formatting | |
554 |
|
554 | |||
555 | if format_spec: |
|
555 | if format_spec: | |
556 | # override format spec, to allow slicing: |
|
556 | # override format spec, to allow slicing: | |
557 | field_name = ':'.join([field_name, format_spec]) |
|
557 | field_name = ':'.join([field_name, format_spec]) | |
558 |
|
558 | |||
559 | # eval the contents of the field for the object |
|
559 | # eval the contents of the field for the object | |
560 | # to be formatted |
|
560 | # to be formatted | |
561 | obj = eval(field_name, kwargs) |
|
561 | obj = eval(field_name, kwargs) | |
562 |
|
562 | |||
563 | # do any conversion on the resulting object |
|
563 | # do any conversion on the resulting object | |
564 | obj = self.convert_field(obj, conversion) |
|
564 | obj = self.convert_field(obj, conversion) | |
565 |
|
565 | |||
566 | # format the object and append to the result |
|
566 | # format the object and append to the result | |
567 | result.append(self.format_field(obj, '')) |
|
567 | result.append(self.format_field(obj, '')) | |
568 |
|
568 | |||
569 | return ''.join(py3compat.cast_unicode(s) for s in result) |
|
569 | return ''.join(py3compat.cast_unicode(s) for s in result) | |
570 |
|
570 | |||
571 |
|
571 | |||
572 | class DollarFormatter(FullEvalFormatter): |
|
572 | class DollarFormatter(FullEvalFormatter): | |
573 | """Formatter allowing Itpl style $foo replacement, for names and attribute |
|
573 | """Formatter allowing Itpl style $foo replacement, for names and attribute | |
574 | access only. Standard {foo} replacement also works, and allows full |
|
574 | access only. Standard {foo} replacement also works, and allows full | |
575 | evaluation of its arguments. |
|
575 | evaluation of its arguments. | |
576 |
|
576 | |||
577 | Examples |
|
577 | Examples | |
578 | -------- |
|
578 | -------- | |
579 | :: |
|
579 | :: | |
580 |
|
580 | |||
581 | In [1]: f = DollarFormatter() |
|
581 | In [1]: f = DollarFormatter() | |
582 | In [2]: f.format('{n//4}', n=8) |
|
582 | In [2]: f.format('{n//4}', n=8) | |
583 | Out[2]: '2' |
|
583 | Out[2]: '2' | |
584 |
|
584 | |||
585 | In [3]: f.format('23 * 76 is $result', result=23*76) |
|
585 | In [3]: f.format('23 * 76 is $result', result=23*76) | |
586 | Out[3]: '23 * 76 is 1748' |
|
586 | Out[3]: '23 * 76 is 1748' | |
587 |
|
587 | |||
588 | In [4]: f.format('$a or {b}', a=1, b=2) |
|
588 | In [4]: f.format('$a or {b}', a=1, b=2) | |
589 | Out[4]: '1 or 2' |
|
589 | Out[4]: '1 or 2' | |
590 | """ |
|
590 | """ | |
591 | _dollar_pattern_ignore_single_quote = re.compile("(.*?)\$(\$?[\w\.]+)(?=([^']*'[^']*')*[^']*$)") |
|
591 | _dollar_pattern_ignore_single_quote = re.compile(r"(.*?)\$(\$?[\w\.]+)(?=([^']*'[^']*')*[^']*$)") | |
592 | def parse(self, fmt_string): |
|
592 | def parse(self, fmt_string): | |
593 | for literal_txt, field_name, format_spec, conversion \ |
|
593 | for literal_txt, field_name, format_spec, conversion \ | |
594 | in Formatter.parse(self, fmt_string): |
|
594 | in Formatter.parse(self, fmt_string): | |
595 |
|
595 | |||
596 | # Find $foo patterns in the literal text. |
|
596 | # Find $foo patterns in the literal text. | |
597 | continue_from = 0 |
|
597 | continue_from = 0 | |
598 | txt = "" |
|
598 | txt = "" | |
599 | for m in self._dollar_pattern_ignore_single_quote.finditer(literal_txt): |
|
599 | for m in self._dollar_pattern_ignore_single_quote.finditer(literal_txt): | |
600 | new_txt, new_field = m.group(1,2) |
|
600 | new_txt, new_field = m.group(1,2) | |
601 | # $$foo --> $foo |
|
601 | # $$foo --> $foo | |
602 | if new_field.startswith("$"): |
|
602 | if new_field.startswith("$"): | |
603 | txt += new_txt + new_field |
|
603 | txt += new_txt + new_field | |
604 | else: |
|
604 | else: | |
605 | yield (txt + new_txt, new_field, "", None) |
|
605 | yield (txt + new_txt, new_field, "", None) | |
606 | txt = "" |
|
606 | txt = "" | |
607 | continue_from = m.end() |
|
607 | continue_from = m.end() | |
608 |
|
608 | |||
609 | # Re-yield the {foo} style pattern |
|
609 | # Re-yield the {foo} style pattern | |
610 | yield (txt + literal_txt[continue_from:], field_name, format_spec, conversion) |
|
610 | yield (txt + literal_txt[continue_from:], field_name, format_spec, conversion) | |
611 |
|
611 | |||
612 | #----------------------------------------------------------------------------- |
|
612 | #----------------------------------------------------------------------------- | |
613 | # Utils to columnize a list of string |
|
613 | # Utils to columnize a list of string | |
614 | #----------------------------------------------------------------------------- |
|
614 | #----------------------------------------------------------------------------- | |
615 |
|
615 | |||
616 | def _col_chunks(l, max_rows, row_first=False): |
|
616 | def _col_chunks(l, max_rows, row_first=False): | |
617 | """Yield successive max_rows-sized column chunks from l.""" |
|
617 | """Yield successive max_rows-sized column chunks from l.""" | |
618 | if row_first: |
|
618 | if row_first: | |
619 | ncols = (len(l) // max_rows) + (len(l) % max_rows > 0) |
|
619 | ncols = (len(l) // max_rows) + (len(l) % max_rows > 0) | |
620 | for i in range(ncols): |
|
620 | for i in range(ncols): | |
621 | yield [l[j] for j in range(i, len(l), ncols)] |
|
621 | yield [l[j] for j in range(i, len(l), ncols)] | |
622 | else: |
|
622 | else: | |
623 | for i in range(0, len(l), max_rows): |
|
623 | for i in range(0, len(l), max_rows): | |
624 | yield l[i:(i + max_rows)] |
|
624 | yield l[i:(i + max_rows)] | |
625 |
|
625 | |||
626 |
|
626 | |||
627 | def _find_optimal(rlist, row_first=False, separator_size=2, displaywidth=80): |
|
627 | def _find_optimal(rlist, row_first=False, separator_size=2, displaywidth=80): | |
628 | """Calculate optimal info to columnize a list of string""" |
|
628 | """Calculate optimal info to columnize a list of string""" | |
629 | for max_rows in range(1, len(rlist) + 1): |
|
629 | for max_rows in range(1, len(rlist) + 1): | |
630 | col_widths = list(map(max, _col_chunks(rlist, max_rows, row_first))) |
|
630 | col_widths = list(map(max, _col_chunks(rlist, max_rows, row_first))) | |
631 | sumlength = sum(col_widths) |
|
631 | sumlength = sum(col_widths) | |
632 | ncols = len(col_widths) |
|
632 | ncols = len(col_widths) | |
633 | if sumlength + separator_size * (ncols - 1) <= displaywidth: |
|
633 | if sumlength + separator_size * (ncols - 1) <= displaywidth: | |
634 | break |
|
634 | break | |
635 | return {'num_columns': ncols, |
|
635 | return {'num_columns': ncols, | |
636 | 'optimal_separator_width': (displaywidth - sumlength) // (ncols - 1) if (ncols - 1) else 0, |
|
636 | 'optimal_separator_width': (displaywidth - sumlength) // (ncols - 1) if (ncols - 1) else 0, | |
637 | 'max_rows': max_rows, |
|
637 | 'max_rows': max_rows, | |
638 | 'column_widths': col_widths |
|
638 | 'column_widths': col_widths | |
639 | } |
|
639 | } | |
640 |
|
640 | |||
641 |
|
641 | |||
642 | def _get_or_default(mylist, i, default=None): |
|
642 | def _get_or_default(mylist, i, default=None): | |
643 | """return list item number, or default if don't exist""" |
|
643 | """return list item number, or default if don't exist""" | |
644 | if i >= len(mylist): |
|
644 | if i >= len(mylist): | |
645 | return default |
|
645 | return default | |
646 | else : |
|
646 | else : | |
647 | return mylist[i] |
|
647 | return mylist[i] | |
648 |
|
648 | |||
649 |
|
649 | |||
650 | def compute_item_matrix(items, row_first=False, empty=None, *args, **kwargs) : |
|
650 | def compute_item_matrix(items, row_first=False, empty=None, *args, **kwargs) : | |
651 | """Returns a nested list, and info to columnize items |
|
651 | """Returns a nested list, and info to columnize items | |
652 |
|
652 | |||
653 | Parameters |
|
653 | Parameters | |
654 | ---------- |
|
654 | ---------- | |
655 |
|
655 | |||
656 | items |
|
656 | items | |
657 | list of strings to columize |
|
657 | list of strings to columize | |
658 | row_first : (default False) |
|
658 | row_first : (default False) | |
659 | Whether to compute columns for a row-first matrix instead of |
|
659 | Whether to compute columns for a row-first matrix instead of | |
660 | column-first (default). |
|
660 | column-first (default). | |
661 | empty : (default None) |
|
661 | empty : (default None) | |
662 | default value to fill list if needed |
|
662 | default value to fill list if needed | |
663 | separator_size : int (default=2) |
|
663 | separator_size : int (default=2) | |
664 | How much characters will be used as a separation between each columns. |
|
664 | How much characters will be used as a separation between each columns. | |
665 | displaywidth : int (default=80) |
|
665 | displaywidth : int (default=80) | |
666 | The width of the area onto which the columns should enter |
|
666 | The width of the area onto which the columns should enter | |
667 |
|
667 | |||
668 | Returns |
|
668 | Returns | |
669 | ------- |
|
669 | ------- | |
670 |
|
670 | |||
671 | strings_matrix |
|
671 | strings_matrix | |
672 |
|
672 | |||
673 | nested list of string, the outer most list contains as many list as |
|
673 | nested list of string, the outer most list contains as many list as | |
674 | rows, the innermost lists have each as many element as columns. If the |
|
674 | rows, the innermost lists have each as many element as columns. If the | |
675 | total number of elements in `items` does not equal the product of |
|
675 | total number of elements in `items` does not equal the product of | |
676 | rows*columns, the last element of some lists are filled with `None`. |
|
676 | rows*columns, the last element of some lists are filled with `None`. | |
677 |
|
677 | |||
678 | dict_info |
|
678 | dict_info | |
679 | some info to make columnize easier: |
|
679 | some info to make columnize easier: | |
680 |
|
680 | |||
681 | num_columns |
|
681 | num_columns | |
682 | number of columns |
|
682 | number of columns | |
683 | max_rows |
|
683 | max_rows | |
684 | maximum number of rows (final number may be less) |
|
684 | maximum number of rows (final number may be less) | |
685 | column_widths |
|
685 | column_widths | |
686 | list of with of each columns |
|
686 | list of with of each columns | |
687 | optimal_separator_width |
|
687 | optimal_separator_width | |
688 | best separator width between columns |
|
688 | best separator width between columns | |
689 |
|
689 | |||
690 | Examples |
|
690 | Examples | |
691 | -------- |
|
691 | -------- | |
692 | :: |
|
692 | :: | |
693 |
|
693 | |||
694 | In [1]: l = ['aaa','b','cc','d','eeeee','f','g','h','i','j','k','l'] |
|
694 | In [1]: l = ['aaa','b','cc','d','eeeee','f','g','h','i','j','k','l'] | |
695 | In [2]: list, info = compute_item_matrix(l, displaywidth=12) |
|
695 | In [2]: list, info = compute_item_matrix(l, displaywidth=12) | |
696 | In [3]: list |
|
696 | In [3]: list | |
697 | Out[3]: [['aaa', 'f', 'k'], ['b', 'g', 'l'], ['cc', 'h', None], ['d', 'i', None], ['eeeee', 'j', None]] |
|
697 | Out[3]: [['aaa', 'f', 'k'], ['b', 'g', 'l'], ['cc', 'h', None], ['d', 'i', None], ['eeeee', 'j', None]] | |
698 | In [4]: ideal = {'num_columns': 3, 'column_widths': [5, 1, 1], 'optimal_separator_width': 2, 'max_rows': 5} |
|
698 | In [4]: ideal = {'num_columns': 3, 'column_widths': [5, 1, 1], 'optimal_separator_width': 2, 'max_rows': 5} | |
699 | In [5]: all((info[k] == ideal[k] for k in ideal.keys())) |
|
699 | In [5]: all((info[k] == ideal[k] for k in ideal.keys())) | |
700 | Out[5]: True |
|
700 | Out[5]: True | |
701 | """ |
|
701 | """ | |
702 | info = _find_optimal(list(map(len, items)), row_first, *args, **kwargs) |
|
702 | info = _find_optimal(list(map(len, items)), row_first, *args, **kwargs) | |
703 | nrow, ncol = info['max_rows'], info['num_columns'] |
|
703 | nrow, ncol = info['max_rows'], info['num_columns'] | |
704 | if row_first: |
|
704 | if row_first: | |
705 | return ([[_get_or_default(items, r * ncol + c, default=empty) for c in range(ncol)] for r in range(nrow)], info) |
|
705 | return ([[_get_or_default(items, r * ncol + c, default=empty) for c in range(ncol)] for r in range(nrow)], info) | |
706 | else: |
|
706 | else: | |
707 | return ([[_get_or_default(items, c * nrow + r, default=empty) for c in range(ncol)] for r in range(nrow)], info) |
|
707 | return ([[_get_or_default(items, c * nrow + r, default=empty) for c in range(ncol)] for r in range(nrow)], info) | |
708 |
|
708 | |||
709 |
|
709 | |||
710 | def columnize(items, row_first=False, separator=' ', displaywidth=80, spread=False): |
|
710 | def columnize(items, row_first=False, separator=' ', displaywidth=80, spread=False): | |
711 | """ Transform a list of strings into a single string with columns. |
|
711 | """ Transform a list of strings into a single string with columns. | |
712 |
|
712 | |||
713 | Parameters |
|
713 | Parameters | |
714 | ---------- |
|
714 | ---------- | |
715 | items : sequence of strings |
|
715 | items : sequence of strings | |
716 | The strings to process. |
|
716 | The strings to process. | |
717 |
|
717 | |||
718 | row_first : (default False) |
|
718 | row_first : (default False) | |
719 | Whether to compute columns for a row-first matrix instead of |
|
719 | Whether to compute columns for a row-first matrix instead of | |
720 | column-first (default). |
|
720 | column-first (default). | |
721 |
|
721 | |||
722 | separator : str, optional [default is two spaces] |
|
722 | separator : str, optional [default is two spaces] | |
723 | The string that separates columns. |
|
723 | The string that separates columns. | |
724 |
|
724 | |||
725 | displaywidth : int, optional [default is 80] |
|
725 | displaywidth : int, optional [default is 80] | |
726 | Width of the display in number of characters. |
|
726 | Width of the display in number of characters. | |
727 |
|
727 | |||
728 | Returns |
|
728 | Returns | |
729 | ------- |
|
729 | ------- | |
730 | The formatted string. |
|
730 | The formatted string. | |
731 | """ |
|
731 | """ | |
732 | if not items: |
|
732 | if not items: | |
733 | return '\n' |
|
733 | return '\n' | |
734 | matrix, info = compute_item_matrix(items, row_first=row_first, separator_size=len(separator), displaywidth=displaywidth) |
|
734 | matrix, info = compute_item_matrix(items, row_first=row_first, separator_size=len(separator), displaywidth=displaywidth) | |
735 | if spread: |
|
735 | if spread: | |
736 | separator = separator.ljust(int(info['optimal_separator_width'])) |
|
736 | separator = separator.ljust(int(info['optimal_separator_width'])) | |
737 | fmatrix = [filter(None, x) for x in matrix] |
|
737 | fmatrix = [filter(None, x) for x in matrix] | |
738 | sjoin = lambda x : separator.join([ y.ljust(w, ' ') for y, w in zip(x, info['column_widths'])]) |
|
738 | sjoin = lambda x : separator.join([ y.ljust(w, ' ') for y, w in zip(x, info['column_widths'])]) | |
739 | return '\n'.join(map(sjoin, fmatrix))+'\n' |
|
739 | return '\n'.join(map(sjoin, fmatrix))+'\n' | |
740 |
|
740 | |||
741 |
|
741 | |||
742 | def get_text_list(list_, last_sep=' and ', sep=", ", wrap_item_with=""): |
|
742 | def get_text_list(list_, last_sep=' and ', sep=", ", wrap_item_with=""): | |
743 | """ |
|
743 | """ | |
744 | Return a string with a natural enumeration of items |
|
744 | Return a string with a natural enumeration of items | |
745 |
|
745 | |||
746 | >>> get_text_list(['a', 'b', 'c', 'd']) |
|
746 | >>> get_text_list(['a', 'b', 'c', 'd']) | |
747 | 'a, b, c and d' |
|
747 | 'a, b, c and d' | |
748 | >>> get_text_list(['a', 'b', 'c'], ' or ') |
|
748 | >>> get_text_list(['a', 'b', 'c'], ' or ') | |
749 | 'a, b or c' |
|
749 | 'a, b or c' | |
750 | >>> get_text_list(['a', 'b', 'c'], ', ') |
|
750 | >>> get_text_list(['a', 'b', 'c'], ', ') | |
751 | 'a, b, c' |
|
751 | 'a, b, c' | |
752 | >>> get_text_list(['a', 'b'], ' or ') |
|
752 | >>> get_text_list(['a', 'b'], ' or ') | |
753 | 'a or b' |
|
753 | 'a or b' | |
754 | >>> get_text_list(['a']) |
|
754 | >>> get_text_list(['a']) | |
755 | 'a' |
|
755 | 'a' | |
756 | >>> get_text_list([]) |
|
756 | >>> get_text_list([]) | |
757 | '' |
|
757 | '' | |
758 | >>> get_text_list(['a', 'b'], wrap_item_with="`") |
|
758 | >>> get_text_list(['a', 'b'], wrap_item_with="`") | |
759 | '`a` and `b`' |
|
759 | '`a` and `b`' | |
760 | >>> get_text_list(['a', 'b', 'c', 'd'], " = ", sep=" + ") |
|
760 | >>> get_text_list(['a', 'b', 'c', 'd'], " = ", sep=" + ") | |
761 | 'a + b + c = d' |
|
761 | 'a + b + c = d' | |
762 | """ |
|
762 | """ | |
763 | if len(list_) == 0: |
|
763 | if len(list_) == 0: | |
764 | return '' |
|
764 | return '' | |
765 | if wrap_item_with: |
|
765 | if wrap_item_with: | |
766 | list_ = ['%s%s%s' % (wrap_item_with, item, wrap_item_with) for |
|
766 | list_ = ['%s%s%s' % (wrap_item_with, item, wrap_item_with) for | |
767 | item in list_] |
|
767 | item in list_] | |
768 | if len(list_) == 1: |
|
768 | if len(list_) == 1: | |
769 | return list_[0] |
|
769 | return list_[0] | |
770 | return '%s%s%s' % ( |
|
770 | return '%s%s%s' % ( | |
771 | sep.join(i for i in list_[:-1]), |
|
771 | sep.join(i for i in list_[:-1]), | |
772 | last_sep, list_[-1]) |
|
772 | last_sep, list_[-1]) |
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