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@@ -1,284 +1,289 b'' | |||||
1 | # -*- coding: utf-8 -*- |
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1 | # -*- coding: utf-8 -*- | |
2 | """Displayhook for IPython. |
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2 | """Displayhook for IPython. | |
3 |
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3 | |||
4 | Authors: |
|
4 | Authors: | |
5 |
|
5 | |||
6 | * Fernando Perez |
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6 | * Fernando Perez | |
7 | * Brian Granger |
|
7 | * Brian Granger | |
8 | """ |
|
8 | """ | |
9 |
|
9 | |||
10 | #----------------------------------------------------------------------------- |
|
10 | #----------------------------------------------------------------------------- | |
11 | # Copyright (C) 2008-2010 The IPython Development Team |
|
11 | # Copyright (C) 2008-2010 The IPython Development Team | |
12 | # Copyright (C) 2001-2007 Fernando Perez <fperez@colorado.edu> |
|
12 | # Copyright (C) 2001-2007 Fernando Perez <fperez@colorado.edu> | |
13 | # |
|
13 | # | |
14 | # Distributed under the terms of the BSD License. The full license is in |
|
14 | # Distributed under the terms of the BSD License. The full license is in | |
15 | # the file COPYING, distributed as part of this software. |
|
15 | # the file COPYING, distributed as part of this software. | |
16 | #----------------------------------------------------------------------------- |
|
16 | #----------------------------------------------------------------------------- | |
17 |
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17 | |||
18 | #----------------------------------------------------------------------------- |
|
18 | #----------------------------------------------------------------------------- | |
19 | # Imports |
|
19 | # Imports | |
20 | #----------------------------------------------------------------------------- |
|
20 | #----------------------------------------------------------------------------- | |
21 |
|
21 | |||
22 | import __builtin__ |
|
22 | import __builtin__ | |
23 | from pprint import PrettyPrinter |
|
23 | from pprint import PrettyPrinter | |
24 | pformat = PrettyPrinter().pformat |
|
24 | pformat = PrettyPrinter().pformat | |
25 |
|
25 | |||
26 | from IPython.config.configurable import Configurable |
|
26 | from IPython.config.configurable import Configurable | |
27 | from IPython.core import prompts |
|
27 | from IPython.core import prompts | |
28 | import IPython.utils.generics |
|
28 | import IPython.utils.generics | |
29 | import IPython.utils.io |
|
29 | import IPython.utils.io | |
30 | from IPython.utils.traitlets import Instance |
|
30 | from IPython.utils.traitlets import Instance | |
31 | from IPython.utils.warn import warn |
|
31 | from IPython.utils.warn import warn | |
32 |
|
32 | |||
33 | #----------------------------------------------------------------------------- |
|
33 | #----------------------------------------------------------------------------- | |
34 | # Main displayhook class |
|
34 | # Main displayhook class | |
35 | #----------------------------------------------------------------------------- |
|
35 | #----------------------------------------------------------------------------- | |
36 |
|
36 | |||
37 | # TODO: The DisplayHook class should be split into two classes, one that |
|
37 | # TODO: The DisplayHook class should be split into two classes, one that | |
38 | # manages the prompts and their synchronization and another that just does the |
|
38 | # manages the prompts and their synchronization and another that just does the | |
39 | # displayhook logic and calls into the prompt manager. |
|
39 | # displayhook logic and calls into the prompt manager. | |
40 |
|
40 | |||
41 | # TODO: Move the various attributes (cache_size, colors, input_sep, |
|
41 | # TODO: Move the various attributes (cache_size, colors, input_sep, | |
42 | # output_sep, output_sep2, ps1, ps2, ps_out, pad_left). Some of these are also |
|
42 | # output_sep, output_sep2, ps1, ps2, ps_out, pad_left). Some of these are also | |
43 | # attributes of InteractiveShell. They should be on ONE object only and the |
|
43 | # attributes of InteractiveShell. They should be on ONE object only and the | |
44 | # other objects should ask that one object for their values. |
|
44 | # other objects should ask that one object for their values. | |
45 |
|
45 | |||
46 | class DisplayHook(Configurable): |
|
46 | class DisplayHook(Configurable): | |
47 | """The custom IPython displayhook to replace sys.displayhook. |
|
47 | """The custom IPython displayhook to replace sys.displayhook. | |
48 |
|
48 | |||
49 | This class does many things, but the basic idea is that it is a callable |
|
49 | This class does many things, but the basic idea is that it is a callable | |
50 | that gets called anytime user code returns a value. |
|
50 | that gets called anytime user code returns a value. | |
51 |
|
51 | |||
52 | Currently this class does more than just the displayhook logic and that |
|
52 | Currently this class does more than just the displayhook logic and that | |
53 | extra logic should eventually be moved out of here. |
|
53 | extra logic should eventually be moved out of here. | |
54 | """ |
|
54 | """ | |
55 |
|
55 | |||
56 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') |
|
56 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') | |
57 |
|
57 | |||
58 | def __init__(self, shell=None, cache_size=1000, |
|
58 | def __init__(self, shell=None, cache_size=1000, | |
59 | colors='NoColor', input_sep='\n', |
|
59 | colors='NoColor', input_sep='\n', | |
60 | output_sep='\n', output_sep2='', |
|
60 | output_sep='\n', output_sep2='', | |
61 | ps1 = None, ps2 = None, ps_out = None, pad_left=True, |
|
61 | ps1 = None, ps2 = None, ps_out = None, pad_left=True, | |
62 | config=None): |
|
62 | config=None): | |
63 | super(DisplayHook, self).__init__(shell=shell, config=config) |
|
63 | super(DisplayHook, self).__init__(shell=shell, config=config) | |
64 |
|
64 | |||
65 | cache_size_min = 3 |
|
65 | cache_size_min = 3 | |
66 | if cache_size <= 0: |
|
66 | if cache_size <= 0: | |
67 | self.do_full_cache = 0 |
|
67 | self.do_full_cache = 0 | |
68 | cache_size = 0 |
|
68 | cache_size = 0 | |
69 | elif cache_size < cache_size_min: |
|
69 | elif cache_size < cache_size_min: | |
70 | self.do_full_cache = 0 |
|
70 | self.do_full_cache = 0 | |
71 | cache_size = 0 |
|
71 | cache_size = 0 | |
72 | warn('caching was disabled (min value for cache size is %s).' % |
|
72 | warn('caching was disabled (min value for cache size is %s).' % | |
73 | cache_size_min,level=3) |
|
73 | cache_size_min,level=3) | |
74 | else: |
|
74 | else: | |
75 | self.do_full_cache = 1 |
|
75 | self.do_full_cache = 1 | |
76 |
|
76 | |||
77 | self.cache_size = cache_size |
|
77 | self.cache_size = cache_size | |
78 | self.input_sep = input_sep |
|
78 | self.input_sep = input_sep | |
79 |
|
79 | |||
80 | # we need a reference to the user-level namespace |
|
80 | # we need a reference to the user-level namespace | |
81 | self.shell = shell |
|
81 | self.shell = shell | |
82 |
|
82 | |||
83 | # Set input prompt strings and colors |
|
83 | # Set input prompt strings and colors | |
84 | if cache_size == 0: |
|
84 | if cache_size == 0: | |
85 | if ps1.find('%n') > -1 or ps1.find(r'\#') > -1 \ |
|
85 | if ps1.find('%n') > -1 or ps1.find(r'\#') > -1 \ | |
86 | or ps1.find(r'\N') > -1: |
|
86 | or ps1.find(r'\N') > -1: | |
87 | ps1 = '>>> ' |
|
87 | ps1 = '>>> ' | |
88 | if ps2.find('%n') > -1 or ps2.find(r'\#') > -1 \ |
|
88 | if ps2.find('%n') > -1 or ps2.find(r'\#') > -1 \ | |
89 | or ps2.find(r'\N') > -1: |
|
89 | or ps2.find(r'\N') > -1: | |
90 | ps2 = '... ' |
|
90 | ps2 = '... ' | |
91 | self.ps1_str = self._set_prompt_str(ps1,'In [\\#]: ','>>> ') |
|
91 | self.ps1_str = self._set_prompt_str(ps1,'In [\\#]: ','>>> ') | |
92 | self.ps2_str = self._set_prompt_str(ps2,' .\\D.: ','... ') |
|
92 | self.ps2_str = self._set_prompt_str(ps2,' .\\D.: ','... ') | |
93 | self.ps_out_str = self._set_prompt_str(ps_out,'Out[\\#]: ','') |
|
93 | self.ps_out_str = self._set_prompt_str(ps_out,'Out[\\#]: ','') | |
94 |
|
94 | |||
95 | self.color_table = prompts.PromptColors |
|
95 | self.color_table = prompts.PromptColors | |
96 | self.prompt1 = prompts.Prompt1(self,sep=input_sep,prompt=self.ps1_str, |
|
96 | self.prompt1 = prompts.Prompt1(self,sep=input_sep,prompt=self.ps1_str, | |
97 | pad_left=pad_left) |
|
97 | pad_left=pad_left) | |
98 | self.prompt2 = prompts.Prompt2(self,prompt=self.ps2_str,pad_left=pad_left) |
|
98 | self.prompt2 = prompts.Prompt2(self,prompt=self.ps2_str,pad_left=pad_left) | |
99 | self.prompt_out = prompts.PromptOut(self,sep='',prompt=self.ps_out_str, |
|
99 | self.prompt_out = prompts.PromptOut(self,sep='',prompt=self.ps_out_str, | |
100 | pad_left=pad_left) |
|
100 | pad_left=pad_left) | |
101 | self.set_colors(colors) |
|
101 | self.set_colors(colors) | |
102 |
|
102 | |||
103 | # other more normal stuff |
|
103 | # other more normal stuff | |
104 | # b/c each call to the In[] prompt raises it by 1, even the first. |
|
104 | # b/c each call to the In[] prompt raises it by 1, even the first. | |
105 | self.prompt_count = 0 |
|
105 | self.prompt_count = 0 | |
106 | # Store the last prompt string each time, we need it for aligning |
|
106 | # Store the last prompt string each time, we need it for aligning | |
107 | # continuation and auto-rewrite prompts |
|
107 | # continuation and auto-rewrite prompts | |
108 | self.last_prompt = '' |
|
108 | self.last_prompt = '' | |
109 | self.output_sep = output_sep |
|
109 | self.output_sep = output_sep | |
110 | self.output_sep2 = output_sep2 |
|
110 | self.output_sep2 = output_sep2 | |
111 | self._,self.__,self.___ = '','','' |
|
111 | self._,self.__,self.___ = '','','' | |
112 | self.pprint_types = map(type,[(),[],{}]) |
|
112 | self.pprint_types = map(type,[(),[],{}]) | |
113 |
|
113 | |||
114 | # these are deliberately global: |
|
114 | # these are deliberately global: | |
115 | to_user_ns = {'_':self._,'__':self.__,'___':self.___} |
|
115 | to_user_ns = {'_':self._,'__':self.__,'___':self.___} | |
116 | self.shell.user_ns.update(to_user_ns) |
|
116 | self.shell.user_ns.update(to_user_ns) | |
117 |
|
117 | |||
118 | def _set_prompt_str(self,p_str,cache_def,no_cache_def): |
|
118 | def _set_prompt_str(self,p_str,cache_def,no_cache_def): | |
119 | if p_str is None: |
|
119 | if p_str is None: | |
120 | if self.do_full_cache: |
|
120 | if self.do_full_cache: | |
121 | return cache_def |
|
121 | return cache_def | |
122 | else: |
|
122 | else: | |
123 | return no_cache_def |
|
123 | return no_cache_def | |
124 | else: |
|
124 | else: | |
125 | return p_str |
|
125 | return p_str | |
126 |
|
126 | |||
127 | def set_colors(self, colors): |
|
127 | def set_colors(self, colors): | |
128 | """Set the active color scheme and configure colors for the three |
|
128 | """Set the active color scheme and configure colors for the three | |
129 | prompt subsystems.""" |
|
129 | prompt subsystems.""" | |
130 |
|
130 | |||
131 | # FIXME: This modifying of the global prompts.prompt_specials needs |
|
131 | # FIXME: This modifying of the global prompts.prompt_specials needs | |
132 | # to be fixed. We need to refactor all of the prompts stuff to use |
|
132 | # to be fixed. We need to refactor all of the prompts stuff to use | |
133 | # proper configuration and traits notifications. |
|
133 | # proper configuration and traits notifications. | |
134 | if colors.lower()=='nocolor': |
|
134 | if colors.lower()=='nocolor': | |
135 | prompts.prompt_specials = prompts.prompt_specials_nocolor |
|
135 | prompts.prompt_specials = prompts.prompt_specials_nocolor | |
136 | else: |
|
136 | else: | |
137 | prompts.prompt_specials = prompts.prompt_specials_color |
|
137 | prompts.prompt_specials = prompts.prompt_specials_color | |
138 |
|
138 | |||
139 | self.color_table.set_active_scheme(colors) |
|
139 | self.color_table.set_active_scheme(colors) | |
140 | self.prompt1.set_colors() |
|
140 | self.prompt1.set_colors() | |
141 | self.prompt2.set_colors() |
|
141 | self.prompt2.set_colors() | |
142 | self.prompt_out.set_colors() |
|
142 | self.prompt_out.set_colors() | |
143 |
|
143 | |||
144 | #------------------------------------------------------------------------- |
|
144 | #------------------------------------------------------------------------- | |
145 | # Methods used in __call__. Override these methods to modify the behavior |
|
145 | # Methods used in __call__. Override these methods to modify the behavior | |
146 | # of the displayhook. |
|
146 | # of the displayhook. | |
147 | #------------------------------------------------------------------------- |
|
147 | #------------------------------------------------------------------------- | |
148 |
|
148 | |||
149 | def check_for_underscore(self): |
|
149 | def check_for_underscore(self): | |
150 | """Check if the user has set the '_' variable by hand.""" |
|
150 | """Check if the user has set the '_' variable by hand.""" | |
151 | # If something injected a '_' variable in __builtin__, delete |
|
151 | # If something injected a '_' variable in __builtin__, delete | |
152 | # ipython's automatic one so we don't clobber that. gettext() in |
|
152 | # ipython's automatic one so we don't clobber that. gettext() in | |
153 | # particular uses _, so we need to stay away from it. |
|
153 | # particular uses _, so we need to stay away from it. | |
154 | if '_' in __builtin__.__dict__: |
|
154 | if '_' in __builtin__.__dict__: | |
155 | try: |
|
155 | try: | |
156 | del self.shell.user_ns['_'] |
|
156 | del self.shell.user_ns['_'] | |
157 | except KeyError: |
|
157 | except KeyError: | |
158 | pass |
|
158 | pass | |
159 |
|
159 | |||
160 |
def qui |
|
160 | def quiet(self): | |
161 | """Should we silence the display hook because of ';'?""" |
|
161 | """Should we silence the display hook because of ';'?""" | |
162 | # do not print output if input ends in ';' |
|
162 | # do not print output if input ends in ';' | |
163 | try: |
|
163 | try: | |
164 | if self.shell.input_hist[self.prompt_count].endswith(';\n'): |
|
164 | if self.shell.input_hist[self.prompt_count].endswith(';\n'): | |
165 | return True |
|
165 | return True | |
166 | except IndexError: |
|
166 | except IndexError: | |
167 | # some uses of ipshellembed may fail here |
|
167 | # some uses of ipshellembed may fail here | |
168 | pass |
|
168 | pass | |
169 | return False |
|
169 | return False | |
170 |
|
170 | |||
|
171 | def start_displayhook(self): | |||
|
172 | """Start the displayhook, initializing resources.""" | |||
|
173 | pass | |||
|
174 | ||||
171 | def write_output_prompt(self): |
|
175 | def write_output_prompt(self): | |
172 | """Write the output prompt.""" |
|
176 | """Write the output prompt.""" | |
173 | # Use write, not print which adds an extra space. |
|
177 | # Use write, not print which adds an extra space. | |
174 | IPython.utils.io.Term.cout.write(self.output_sep) |
|
178 | IPython.utils.io.Term.cout.write(self.output_sep) | |
175 | outprompt = str(self.prompt_out) |
|
179 | outprompt = str(self.prompt_out) | |
176 | if self.do_full_cache: |
|
180 | if self.do_full_cache: | |
177 | IPython.utils.io.Term.cout.write(outprompt) |
|
181 | IPython.utils.io.Term.cout.write(outprompt) | |
178 |
|
182 | |||
179 | # TODO: Make this method an extension point. The previous implementation |
|
183 | # TODO: Make this method an extension point. The previous implementation | |
180 | # has both a result_display hook as well as a result_display generic |
|
184 | # has both a result_display hook as well as a result_display generic | |
181 | # function to customize the repr on a per class basis. We need to rethink |
|
185 | # function to customize the repr on a per class basis. We need to rethink | |
182 | # the hooks mechanism before doing this though. |
|
186 | # the hooks mechanism before doing this though. | |
183 | def compute_result_repr(self, result): |
|
187 | def compute_result_repr(self, result): | |
184 | """Compute and return the repr of the object to be displayed. |
|
188 | """Compute and return the repr of the object to be displayed. | |
185 |
|
189 | |||
186 | This method only compute the string form of the repr and should NOT |
|
190 | This method only compute the string form of the repr and should NOT | |
187 | actual print or write that to a stream. This method may also transform |
|
191 | actual print or write that to a stream. This method may also transform | |
188 | the result itself, but the default implementation passes the original |
|
192 | the result itself, but the default implementation passes the original | |
189 | through. |
|
193 | through. | |
190 | """ |
|
194 | """ | |
191 | try: |
|
195 | try: | |
192 | if self.shell.pprint: |
|
196 | if self.shell.pprint: | |
193 | result_repr = pformat(result) |
|
197 | result_repr = pformat(result) | |
194 | if '\n' in result_repr: |
|
198 | if '\n' in result_repr: | |
195 | # So that multi-line strings line up with the left column of |
|
199 | # So that multi-line strings line up with the left column of | |
196 | # the screen, instead of having the output prompt mess up |
|
200 | # the screen, instead of having the output prompt mess up | |
197 | # their first line. |
|
201 | # their first line. | |
198 | result_repr = '\n' + result_repr |
|
202 | result_repr = '\n' + result_repr | |
199 | else: |
|
203 | else: | |
200 | result_repr = repr(result) |
|
204 | result_repr = repr(result) | |
201 | except TypeError: |
|
205 | except TypeError: | |
202 | # This happens when result.__repr__ doesn't return a string, |
|
206 | # This happens when result.__repr__ doesn't return a string, | |
203 | # such as when it returns None. |
|
207 | # such as when it returns None. | |
204 | result_repr = '\n' |
|
208 | result_repr = '\n' | |
205 | return result, result_repr |
|
209 | return result, result_repr | |
206 |
|
210 | |||
207 | def write_result_repr(self, result_repr): |
|
211 | def write_result_repr(self, result_repr): | |
208 | # We want to print because we want to always make sure we have a |
|
212 | # We want to print because we want to always make sure we have a | |
209 | # newline, even if all the prompt separators are ''. This is the |
|
213 | # newline, even if all the prompt separators are ''. This is the | |
210 | # standard IPython behavior. |
|
214 | # standard IPython behavior. | |
211 | print >>IPython.utils.io.Term.cout, result_repr |
|
215 | print >>IPython.utils.io.Term.cout, result_repr | |
212 |
|
216 | |||
213 | def update_user_ns(self, result): |
|
217 | def update_user_ns(self, result): | |
214 | """Update user_ns with various things like _, __, _1, etc.""" |
|
218 | """Update user_ns with various things like _, __, _1, etc.""" | |
215 |
|
219 | |||
216 | # Avoid recursive reference when displaying _oh/Out |
|
220 | # Avoid recursive reference when displaying _oh/Out | |
217 | if result is not self.shell.user_ns['_oh']: |
|
221 | if result is not self.shell.user_ns['_oh']: | |
218 | if len(self.shell.user_ns['_oh']) >= self.cache_size and self.do_full_cache: |
|
222 | if len(self.shell.user_ns['_oh']) >= self.cache_size and self.do_full_cache: | |
219 | warn('Output cache limit (currently '+ |
|
223 | warn('Output cache limit (currently '+ | |
220 | `self.cache_size`+' entries) hit.\n' |
|
224 | `self.cache_size`+' entries) hit.\n' | |
221 | 'Flushing cache and resetting history counter...\n' |
|
225 | 'Flushing cache and resetting history counter...\n' | |
222 | 'The only history variables available will be _,__,___ and _1\n' |
|
226 | 'The only history variables available will be _,__,___ and _1\n' | |
223 | 'with the current result.') |
|
227 | 'with the current result.') | |
224 |
|
228 | |||
225 | self.flush() |
|
229 | self.flush() | |
226 | # Don't overwrite '_' and friends if '_' is in __builtin__ (otherwise |
|
230 | # Don't overwrite '_' and friends if '_' is in __builtin__ (otherwise | |
227 | # we cause buggy behavior for things like gettext). |
|
231 | # we cause buggy behavior for things like gettext). | |
228 | if '_' not in __builtin__.__dict__: |
|
232 | if '_' not in __builtin__.__dict__: | |
229 | self.___ = self.__ |
|
233 | self.___ = self.__ | |
230 | self.__ = self._ |
|
234 | self.__ = self._ | |
231 | self._ = result |
|
235 | self._ = result | |
232 | self.shell.user_ns.update({'_':self._,'__':self.__,'___':self.___}) |
|
236 | self.shell.user_ns.update({'_':self._,'__':self.__,'___':self.___}) | |
233 |
|
237 | |||
234 | # hackish access to top-level namespace to create _1,_2... dynamically |
|
238 | # hackish access to top-level namespace to create _1,_2... dynamically | |
235 | to_main = {} |
|
239 | to_main = {} | |
236 | if self.do_full_cache: |
|
240 | if self.do_full_cache: | |
237 | new_result = '_'+`self.prompt_count` |
|
241 | new_result = '_'+`self.prompt_count` | |
238 | to_main[new_result] = result |
|
242 | to_main[new_result] = result | |
239 | self.shell.user_ns.update(to_main) |
|
243 | self.shell.user_ns.update(to_main) | |
240 | self.shell.user_ns['_oh'][self.prompt_count] = result |
|
244 | self.shell.user_ns['_oh'][self.prompt_count] = result | |
241 |
|
245 | |||
242 | def log_output(self, result): |
|
246 | def log_output(self, result): | |
243 | """Log the output.""" |
|
247 | """Log the output.""" | |
244 | if self.shell.logger.log_output: |
|
248 | if self.shell.logger.log_output: | |
245 | self.shell.logger.log_write(repr(result),'output') |
|
249 | self.shell.logger.log_write(repr(result),'output') | |
246 |
|
250 | |||
247 | def finish_displayhook(self): |
|
251 | def finish_displayhook(self): | |
248 | """Finish up all displayhook activities.""" |
|
252 | """Finish up all displayhook activities.""" | |
249 | IPython.utils.io.Term.cout.write(self.output_sep2) |
|
253 | IPython.utils.io.Term.cout.write(self.output_sep2) | |
250 | IPython.utils.io.Term.cout.flush() |
|
254 | IPython.utils.io.Term.cout.flush() | |
251 |
|
255 | |||
252 | def __call__(self, result=None): |
|
256 | def __call__(self, result=None): | |
253 | """Printing with history cache management. |
|
257 | """Printing with history cache management. | |
254 |
|
258 | |||
255 | This is invoked everytime the interpreter needs to print, and is |
|
259 | This is invoked everytime the interpreter needs to print, and is | |
256 | activated by setting the variable sys.displayhook to it. |
|
260 | activated by setting the variable sys.displayhook to it. | |
257 | """ |
|
261 | """ | |
258 | self.check_for_underscore() |
|
262 | self.check_for_underscore() | |
259 |
if result is not None and not self.qui |
|
263 | if result is not None and not self.quiet(): | |
|
264 | self.start_displayhook() | |||
260 | self.write_output_prompt() |
|
265 | self.write_output_prompt() | |
261 | result, result_repr = self.compute_result_repr(result) |
|
266 | result, result_repr = self.compute_result_repr(result) | |
262 | self.write_result_repr(result_repr) |
|
267 | self.write_result_repr(result_repr) | |
263 | self.update_user_ns(result) |
|
268 | self.update_user_ns(result) | |
264 | self.log_output(result) |
|
269 | self.log_output(result) | |
265 | self.finish_displayhook() |
|
270 | self.finish_displayhook() | |
266 |
|
271 | |||
267 | def flush(self): |
|
272 | def flush(self): | |
268 | if not self.do_full_cache: |
|
273 | if not self.do_full_cache: | |
269 | raise ValueError,"You shouldn't have reached the cache flush "\ |
|
274 | raise ValueError,"You shouldn't have reached the cache flush "\ | |
270 | "if full caching is not enabled!" |
|
275 | "if full caching is not enabled!" | |
271 | # delete auto-generated vars from global namespace |
|
276 | # delete auto-generated vars from global namespace | |
272 |
|
277 | |||
273 | for n in range(1,self.prompt_count + 1): |
|
278 | for n in range(1,self.prompt_count + 1): | |
274 | key = '_'+`n` |
|
279 | key = '_'+`n` | |
275 | try: |
|
280 | try: | |
276 | del self.shell.user_ns[key] |
|
281 | del self.shell.user_ns[key] | |
277 | except: pass |
|
282 | except: pass | |
278 | self.shell.user_ns['_oh'].clear() |
|
283 | self.shell.user_ns['_oh'].clear() | |
279 |
|
284 | |||
280 | if '_' not in __builtin__.__dict__: |
|
285 | if '_' not in __builtin__.__dict__: | |
281 | self.shell.user_ns.update({'_':None,'__':None, '___':None}) |
|
286 | self.shell.user_ns.update({'_':None,'__':None, '___':None}) | |
282 | import gc |
|
287 | import gc | |
283 | gc.collect() # xxx needed? |
|
288 | gc.collect() # xxx needed? | |
284 |
|
289 |
@@ -1,2060 +1,2063 b'' | |||||
1 | # -*- coding: utf-8 -*- |
|
1 | # -*- coding: utf-8 -*- | |
2 | """Main IPython class.""" |
|
2 | """Main IPython class.""" | |
3 |
|
3 | |||
4 | #----------------------------------------------------------------------------- |
|
4 | #----------------------------------------------------------------------------- | |
5 | # Copyright (C) 2001 Janko Hauser <jhauser@zscout.de> |
|
5 | # Copyright (C) 2001 Janko Hauser <jhauser@zscout.de> | |
6 | # Copyright (C) 2001-2007 Fernando Perez. <fperez@colorado.edu> |
|
6 | # Copyright (C) 2001-2007 Fernando Perez. <fperez@colorado.edu> | |
7 | # Copyright (C) 2008-2010 The IPython Development Team |
|
7 | # Copyright (C) 2008-2010 The IPython Development Team | |
8 | # |
|
8 | # | |
9 | # Distributed under the terms of the BSD License. The full license is in |
|
9 | # Distributed under the terms of the BSD License. The full license is in | |
10 | # the file COPYING, distributed as part of this software. |
|
10 | # the file COPYING, distributed as part of this software. | |
11 | #----------------------------------------------------------------------------- |
|
11 | #----------------------------------------------------------------------------- | |
12 |
|
12 | |||
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 | # Imports |
|
14 | # Imports | |
15 | #----------------------------------------------------------------------------- |
|
15 | #----------------------------------------------------------------------------- | |
16 |
|
16 | |||
17 | from __future__ import with_statement |
|
17 | from __future__ import with_statement | |
18 | from __future__ import absolute_import |
|
18 | from __future__ import absolute_import | |
19 |
|
19 | |||
20 | import __builtin__ |
|
20 | import __builtin__ | |
21 | import abc |
|
21 | import abc | |
22 | import codeop |
|
22 | import codeop | |
23 | import exceptions |
|
23 | import exceptions | |
24 | import new |
|
24 | import new | |
25 | import os |
|
25 | import os | |
26 | import re |
|
26 | import re | |
27 | import string |
|
27 | import string | |
28 | import sys |
|
28 | import sys | |
29 | import tempfile |
|
29 | import tempfile | |
30 | from contextlib import nested |
|
30 | from contextlib import nested | |
31 |
|
31 | |||
32 | from IPython.core import debugger, oinspect |
|
32 | from IPython.core import debugger, oinspect | |
33 | from IPython.core import history as ipcorehist |
|
33 | from IPython.core import history as ipcorehist | |
34 | from IPython.core import prefilter |
|
34 | from IPython.core import prefilter | |
35 | from IPython.core import shadowns |
|
35 | from IPython.core import shadowns | |
36 | from IPython.core import ultratb |
|
36 | from IPython.core import ultratb | |
37 | from IPython.core.alias import AliasManager |
|
37 | from IPython.core.alias import AliasManager | |
38 | from IPython.core.builtin_trap import BuiltinTrap |
|
38 | from IPython.core.builtin_trap import BuiltinTrap | |
39 | from IPython.config.configurable import Configurable |
|
39 | from IPython.config.configurable import Configurable | |
40 | from IPython.core.display_trap import DisplayTrap |
|
40 | from IPython.core.display_trap import DisplayTrap | |
41 | from IPython.core.error import UsageError |
|
41 | from IPython.core.error import UsageError | |
42 | from IPython.core.extensions import ExtensionManager |
|
42 | from IPython.core.extensions import ExtensionManager | |
43 | from IPython.core.fakemodule import FakeModule, init_fakemod_dict |
|
43 | from IPython.core.fakemodule import FakeModule, init_fakemod_dict | |
44 | from IPython.core.inputlist import InputList |
|
44 | from IPython.core.inputlist import InputList | |
45 | from IPython.core.logger import Logger |
|
45 | from IPython.core.logger import Logger | |
46 | from IPython.core.magic import Magic |
|
46 | from IPython.core.magic import Magic | |
47 | from IPython.core.plugin import PluginManager |
|
47 | from IPython.core.plugin import PluginManager | |
48 | from IPython.core.prefilter import PrefilterManager |
|
48 | from IPython.core.prefilter import PrefilterManager | |
49 | from IPython.core.displayhook import DisplayHook |
|
49 | from IPython.core.displayhook import DisplayHook | |
50 | import IPython.core.hooks |
|
50 | import IPython.core.hooks | |
51 | from IPython.external.Itpl import ItplNS |
|
51 | from IPython.external.Itpl import ItplNS | |
52 | from IPython.utils import PyColorize |
|
52 | from IPython.utils import PyColorize | |
53 | from IPython.utils import pickleshare |
|
53 | from IPython.utils import pickleshare | |
54 | from IPython.utils.doctestreload import doctest_reload |
|
54 | from IPython.utils.doctestreload import doctest_reload | |
55 | from IPython.utils.ipstruct import Struct |
|
55 | from IPython.utils.ipstruct import Struct | |
56 | import IPython.utils.io |
|
56 | import IPython.utils.io | |
57 | from IPython.utils.io import ask_yes_no |
|
57 | from IPython.utils.io import ask_yes_no | |
58 | from IPython.utils.path import get_home_dir, get_ipython_dir, HomeDirError |
|
58 | from IPython.utils.path import get_home_dir, get_ipython_dir, HomeDirError | |
59 | from IPython.utils.process import getoutput, getoutputerror |
|
59 | from IPython.utils.process import getoutput, getoutputerror | |
60 | from IPython.utils.strdispatch import StrDispatch |
|
60 | from IPython.utils.strdispatch import StrDispatch | |
61 | from IPython.utils.syspathcontext import prepended_to_syspath |
|
61 | from IPython.utils.syspathcontext import prepended_to_syspath | |
62 | from IPython.utils.text import num_ini_spaces |
|
62 | from IPython.utils.text import num_ini_spaces | |
63 | from IPython.utils.warn import warn, error, fatal |
|
63 | from IPython.utils.warn import warn, error, fatal | |
64 | from IPython.utils.traitlets import ( |
|
64 | from IPython.utils.traitlets import ( | |
65 | Int, Str, CBool, CaselessStrEnum, Enum, List, Unicode, Instance |
|
65 | Int, Str, CBool, CaselessStrEnum, Enum, List, Unicode, Instance, Type | |
66 | ) |
|
66 | ) | |
67 |
|
67 | |||
68 | # from IPython.utils import growl |
|
68 | # from IPython.utils import growl | |
69 | # growl.start("IPython") |
|
69 | # growl.start("IPython") | |
70 |
|
70 | |||
71 | #----------------------------------------------------------------------------- |
|
71 | #----------------------------------------------------------------------------- | |
72 | # Globals |
|
72 | # Globals | |
73 | #----------------------------------------------------------------------------- |
|
73 | #----------------------------------------------------------------------------- | |
74 |
|
74 | |||
75 | # compiled regexps for autoindent management |
|
75 | # compiled regexps for autoindent management | |
76 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') |
|
76 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') | |
77 |
|
77 | |||
78 | #----------------------------------------------------------------------------- |
|
78 | #----------------------------------------------------------------------------- | |
79 | # Utilities |
|
79 | # Utilities | |
80 | #----------------------------------------------------------------------------- |
|
80 | #----------------------------------------------------------------------------- | |
81 |
|
81 | |||
82 | # store the builtin raw_input globally, and use this always, in case user code |
|
82 | # store the builtin raw_input globally, and use this always, in case user code | |
83 | # overwrites it (like wx.py.PyShell does) |
|
83 | # overwrites it (like wx.py.PyShell does) | |
84 | raw_input_original = raw_input |
|
84 | raw_input_original = raw_input | |
85 |
|
85 | |||
86 | def softspace(file, newvalue): |
|
86 | def softspace(file, newvalue): | |
87 | """Copied from code.py, to remove the dependency""" |
|
87 | """Copied from code.py, to remove the dependency""" | |
88 |
|
88 | |||
89 | oldvalue = 0 |
|
89 | oldvalue = 0 | |
90 | try: |
|
90 | try: | |
91 | oldvalue = file.softspace |
|
91 | oldvalue = file.softspace | |
92 | except AttributeError: |
|
92 | except AttributeError: | |
93 | pass |
|
93 | pass | |
94 | try: |
|
94 | try: | |
95 | file.softspace = newvalue |
|
95 | file.softspace = newvalue | |
96 | except (AttributeError, TypeError): |
|
96 | except (AttributeError, TypeError): | |
97 | # "attribute-less object" or "read-only attributes" |
|
97 | # "attribute-less object" or "read-only attributes" | |
98 | pass |
|
98 | pass | |
99 | return oldvalue |
|
99 | return oldvalue | |
100 |
|
100 | |||
101 |
|
101 | |||
102 | def no_op(*a, **kw): pass |
|
102 | def no_op(*a, **kw): pass | |
103 |
|
103 | |||
104 | class SpaceInInput(exceptions.Exception): pass |
|
104 | class SpaceInInput(exceptions.Exception): pass | |
105 |
|
105 | |||
106 | class Bunch: pass |
|
106 | class Bunch: pass | |
107 |
|
107 | |||
108 | class SyntaxTB(ultratb.ListTB): |
|
108 | class SyntaxTB(ultratb.ListTB): | |
109 | """Extension which holds some state: the last exception value""" |
|
109 | """Extension which holds some state: the last exception value""" | |
110 |
|
110 | |||
111 | def __init__(self,color_scheme = 'NoColor'): |
|
111 | def __init__(self,color_scheme = 'NoColor'): | |
112 | ultratb.ListTB.__init__(self,color_scheme) |
|
112 | ultratb.ListTB.__init__(self,color_scheme) | |
113 | self.last_syntax_error = None |
|
113 | self.last_syntax_error = None | |
114 |
|
114 | |||
115 | def __call__(self, etype, value, elist): |
|
115 | def __call__(self, etype, value, elist): | |
116 | self.last_syntax_error = value |
|
116 | self.last_syntax_error = value | |
117 | ultratb.ListTB.__call__(self,etype,value,elist) |
|
117 | ultratb.ListTB.__call__(self,etype,value,elist) | |
118 |
|
118 | |||
119 | def clear_err_state(self): |
|
119 | def clear_err_state(self): | |
120 | """Return the current error state and clear it""" |
|
120 | """Return the current error state and clear it""" | |
121 | e = self.last_syntax_error |
|
121 | e = self.last_syntax_error | |
122 | self.last_syntax_error = None |
|
122 | self.last_syntax_error = None | |
123 | return e |
|
123 | return e | |
124 |
|
124 | |||
125 |
|
125 | |||
126 | def get_default_colors(): |
|
126 | def get_default_colors(): | |
127 | if sys.platform=='darwin': |
|
127 | if sys.platform=='darwin': | |
128 | return "LightBG" |
|
128 | return "LightBG" | |
129 | elif os.name=='nt': |
|
129 | elif os.name=='nt': | |
130 | return 'Linux' |
|
130 | return 'Linux' | |
131 | else: |
|
131 | else: | |
132 | return 'Linux' |
|
132 | return 'Linux' | |
133 |
|
133 | |||
134 |
|
134 | |||
135 | class SeparateStr(Str): |
|
135 | class SeparateStr(Str): | |
136 | """A Str subclass to validate separate_in, separate_out, etc. |
|
136 | """A Str subclass to validate separate_in, separate_out, etc. | |
137 |
|
137 | |||
138 | This is a Str based trait that converts '0'->'' and '\\n'->'\n'. |
|
138 | This is a Str based trait that converts '0'->'' and '\\n'->'\n'. | |
139 | """ |
|
139 | """ | |
140 |
|
140 | |||
141 | def validate(self, obj, value): |
|
141 | def validate(self, obj, value): | |
142 | if value == '0': value = '' |
|
142 | if value == '0': value = '' | |
143 | value = value.replace('\\n','\n') |
|
143 | value = value.replace('\\n','\n') | |
144 | return super(SeparateStr, self).validate(obj, value) |
|
144 | return super(SeparateStr, self).validate(obj, value) | |
145 |
|
145 | |||
146 |
|
146 | |||
147 | #----------------------------------------------------------------------------- |
|
147 | #----------------------------------------------------------------------------- | |
148 | # Main IPython class |
|
148 | # Main IPython class | |
149 | #----------------------------------------------------------------------------- |
|
149 | #----------------------------------------------------------------------------- | |
150 |
|
150 | |||
151 |
|
151 | |||
152 | class InteractiveShell(Configurable, Magic): |
|
152 | class InteractiveShell(Configurable, Magic): | |
153 | """An enhanced, interactive shell for Python.""" |
|
153 | """An enhanced, interactive shell for Python.""" | |
154 |
|
154 | |||
155 | autocall = Enum((0,1,2), default_value=1, config=True) |
|
155 | autocall = Enum((0,1,2), default_value=1, config=True) | |
156 | # TODO: remove all autoindent logic and put into frontends. |
|
156 | # TODO: remove all autoindent logic and put into frontends. | |
157 | # We can't do this yet because even runlines uses the autoindent. |
|
157 | # We can't do this yet because even runlines uses the autoindent. | |
158 | autoindent = CBool(True, config=True) |
|
158 | autoindent = CBool(True, config=True) | |
159 | automagic = CBool(True, config=True) |
|
159 | automagic = CBool(True, config=True) | |
160 | cache_size = Int(1000, config=True) |
|
160 | cache_size = Int(1000, config=True) | |
161 | color_info = CBool(True, config=True) |
|
161 | color_info = CBool(True, config=True) | |
162 | colors = CaselessStrEnum(('NoColor','LightBG','Linux'), |
|
162 | colors = CaselessStrEnum(('NoColor','LightBG','Linux'), | |
163 | default_value=get_default_colors(), config=True) |
|
163 | default_value=get_default_colors(), config=True) | |
164 | debug = CBool(False, config=True) |
|
164 | debug = CBool(False, config=True) | |
165 | deep_reload = CBool(False, config=True) |
|
165 | deep_reload = CBool(False, config=True) | |
|
166 | displayhook_class = Type(DisplayHook) | |||
166 | filename = Str("<ipython console>") |
|
167 | filename = Str("<ipython console>") | |
167 | ipython_dir= Unicode('', config=True) # Set to get_ipython_dir() in __init__ |
|
168 | ipython_dir= Unicode('', config=True) # Set to get_ipython_dir() in __init__ | |
168 | logstart = CBool(False, config=True) |
|
169 | logstart = CBool(False, config=True) | |
169 | logfile = Str('', config=True) |
|
170 | logfile = Str('', config=True) | |
170 | logappend = Str('', config=True) |
|
171 | logappend = Str('', config=True) | |
171 | object_info_string_level = Enum((0,1,2), default_value=0, |
|
172 | object_info_string_level = Enum((0,1,2), default_value=0, | |
172 | config=True) |
|
173 | config=True) | |
173 | pdb = CBool(False, config=True) |
|
174 | pdb = CBool(False, config=True) | |
174 | pprint = CBool(True, config=True) |
|
175 | pprint = CBool(True, config=True) | |
175 | profile = Str('', config=True) |
|
176 | profile = Str('', config=True) | |
176 | prompt_in1 = Str('In [\\#]: ', config=True) |
|
177 | prompt_in1 = Str('In [\\#]: ', config=True) | |
177 | prompt_in2 = Str(' .\\D.: ', config=True) |
|
178 | prompt_in2 = Str(' .\\D.: ', config=True) | |
178 | prompt_out = Str('Out[\\#]: ', config=True) |
|
179 | prompt_out = Str('Out[\\#]: ', config=True) | |
179 | prompts_pad_left = CBool(True, config=True) |
|
180 | prompts_pad_left = CBool(True, config=True) | |
180 | quiet = CBool(False, config=True) |
|
181 | quiet = CBool(False, config=True) | |
181 |
|
182 | |||
182 | # The readline stuff will eventually be moved to the terminal subclass |
|
183 | # The readline stuff will eventually be moved to the terminal subclass | |
183 | # but for now, we can't do that as readline is welded in everywhere. |
|
184 | # but for now, we can't do that as readline is welded in everywhere. | |
184 | readline_use = CBool(True, config=True) |
|
185 | readline_use = CBool(True, config=True) | |
185 | readline_merge_completions = CBool(True, config=True) |
|
186 | readline_merge_completions = CBool(True, config=True) | |
186 | readline_omit__names = Enum((0,1,2), default_value=0, config=True) |
|
187 | readline_omit__names = Enum((0,1,2), default_value=0, config=True) | |
187 | readline_remove_delims = Str('-/~', config=True) |
|
188 | readline_remove_delims = Str('-/~', config=True) | |
188 | readline_parse_and_bind = List([ |
|
189 | readline_parse_and_bind = List([ | |
189 | 'tab: complete', |
|
190 | 'tab: complete', | |
190 | '"\C-l": clear-screen', |
|
191 | '"\C-l": clear-screen', | |
191 | 'set show-all-if-ambiguous on', |
|
192 | 'set show-all-if-ambiguous on', | |
192 | '"\C-o": tab-insert', |
|
193 | '"\C-o": tab-insert', | |
193 | '"\M-i": " "', |
|
194 | '"\M-i": " "', | |
194 | '"\M-o": "\d\d\d\d"', |
|
195 | '"\M-o": "\d\d\d\d"', | |
195 | '"\M-I": "\d\d\d\d"', |
|
196 | '"\M-I": "\d\d\d\d"', | |
196 | '"\C-r": reverse-search-history', |
|
197 | '"\C-r": reverse-search-history', | |
197 | '"\C-s": forward-search-history', |
|
198 | '"\C-s": forward-search-history', | |
198 | '"\C-p": history-search-backward', |
|
199 | '"\C-p": history-search-backward', | |
199 | '"\C-n": history-search-forward', |
|
200 | '"\C-n": history-search-forward', | |
200 | '"\e[A": history-search-backward', |
|
201 | '"\e[A": history-search-backward', | |
201 | '"\e[B": history-search-forward', |
|
202 | '"\e[B": history-search-forward', | |
202 | '"\C-k": kill-line', |
|
203 | '"\C-k": kill-line', | |
203 | '"\C-u": unix-line-discard', |
|
204 | '"\C-u": unix-line-discard', | |
204 | ], allow_none=False, config=True) |
|
205 | ], allow_none=False, config=True) | |
205 |
|
206 | |||
206 | # TODO: this part of prompt management should be moved to the frontends. |
|
207 | # TODO: this part of prompt management should be moved to the frontends. | |
207 | # Use custom TraitTypes that convert '0'->'' and '\\n'->'\n' |
|
208 | # Use custom TraitTypes that convert '0'->'' and '\\n'->'\n' | |
208 | separate_in = SeparateStr('\n', config=True) |
|
209 | separate_in = SeparateStr('\n', config=True) | |
209 | separate_out = SeparateStr('\n', config=True) |
|
210 | separate_out = SeparateStr('\n', config=True) | |
210 | separate_out2 = SeparateStr('\n', config=True) |
|
211 | separate_out2 = SeparateStr('\n', config=True) | |
211 | system_header = Str('IPython system call: ', config=True) |
|
212 | system_header = Str('IPython system call: ', config=True) | |
212 | system_verbose = CBool(False, config=True) |
|
213 | system_verbose = CBool(False, config=True) | |
213 | wildcards_case_sensitive = CBool(True, config=True) |
|
214 | wildcards_case_sensitive = CBool(True, config=True) | |
214 | xmode = CaselessStrEnum(('Context','Plain', 'Verbose'), |
|
215 | xmode = CaselessStrEnum(('Context','Plain', 'Verbose'), | |
215 | default_value='Context', config=True) |
|
216 | default_value='Context', config=True) | |
216 |
|
217 | |||
217 | # Subcomponents of InteractiveShell |
|
218 | # Subcomponents of InteractiveShell | |
218 | alias_manager = Instance('IPython.core.alias.AliasManager') |
|
219 | alias_manager = Instance('IPython.core.alias.AliasManager') | |
219 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager') |
|
220 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager') | |
220 | builtin_trap = Instance('IPython.core.builtin_trap.BuiltinTrap') |
|
221 | builtin_trap = Instance('IPython.core.builtin_trap.BuiltinTrap') | |
221 | display_trap = Instance('IPython.core.display_trap.DisplayTrap') |
|
222 | display_trap = Instance('IPython.core.display_trap.DisplayTrap') | |
222 | extension_manager = Instance('IPython.core.extensions.ExtensionManager') |
|
223 | extension_manager = Instance('IPython.core.extensions.ExtensionManager') | |
223 | plugin_manager = Instance('IPython.core.plugin.PluginManager') |
|
224 | plugin_manager = Instance('IPython.core.plugin.PluginManager') | |
224 |
|
225 | |||
225 | def __init__(self, config=None, ipython_dir=None, |
|
226 | def __init__(self, config=None, ipython_dir=None, | |
226 | user_ns=None, user_global_ns=None, |
|
227 | user_ns=None, user_global_ns=None, | |
227 | custom_exceptions=((),None)): |
|
228 | custom_exceptions=((),None)): | |
228 |
|
229 | |||
229 | # This is where traits with a config_key argument are updated |
|
230 | # This is where traits with a config_key argument are updated | |
230 | # from the values on config. |
|
231 | # from the values on config. | |
231 | super(InteractiveShell, self).__init__(config=config) |
|
232 | super(InteractiveShell, self).__init__(config=config) | |
232 |
|
233 | |||
233 | # These are relatively independent and stateless |
|
234 | # These are relatively independent and stateless | |
234 | self.init_ipython_dir(ipython_dir) |
|
235 | self.init_ipython_dir(ipython_dir) | |
235 | self.init_instance_attrs() |
|
236 | self.init_instance_attrs() | |
236 |
|
237 | |||
237 | # Create namespaces (user_ns, user_global_ns, etc.) |
|
238 | # Create namespaces (user_ns, user_global_ns, etc.) | |
238 | self.init_create_namespaces(user_ns, user_global_ns) |
|
239 | self.init_create_namespaces(user_ns, user_global_ns) | |
239 | # This has to be done after init_create_namespaces because it uses |
|
240 | # This has to be done after init_create_namespaces because it uses | |
240 | # something in self.user_ns, but before init_sys_modules, which |
|
241 | # something in self.user_ns, but before init_sys_modules, which | |
241 | # is the first thing to modify sys. |
|
242 | # is the first thing to modify sys. | |
242 | self.save_sys_module_state() |
|
243 | self.save_sys_module_state() | |
243 | self.init_sys_modules() |
|
244 | self.init_sys_modules() | |
244 |
|
245 | |||
245 | self.init_history() |
|
246 | self.init_history() | |
246 | self.init_encoding() |
|
247 | self.init_encoding() | |
247 | self.init_prefilter() |
|
248 | self.init_prefilter() | |
248 |
|
249 | |||
249 | Magic.__init__(self, self) |
|
250 | Magic.__init__(self, self) | |
250 |
|
251 | |||
251 | self.init_syntax_highlighting() |
|
252 | self.init_syntax_highlighting() | |
252 | self.init_hooks() |
|
253 | self.init_hooks() | |
253 | self.init_pushd_popd_magic() |
|
254 | self.init_pushd_popd_magic() | |
254 | # TODO: init_io() needs to happen before init_traceback handlers |
|
255 | # TODO: init_io() needs to happen before init_traceback handlers | |
255 | # because the traceback handlers hardcode the stdout/stderr streams. |
|
256 | # because the traceback handlers hardcode the stdout/stderr streams. | |
256 | # This logic in in debugger.Pdb and should eventually be changed. |
|
257 | # This logic in in debugger.Pdb and should eventually be changed. | |
257 | self.init_io() |
|
258 | self.init_io() | |
258 | self.init_traceback_handlers(custom_exceptions) |
|
259 | self.init_traceback_handlers(custom_exceptions) | |
259 | self.init_user_ns() |
|
260 | self.init_user_ns() | |
260 | self.init_logger() |
|
261 | self.init_logger() | |
261 | self.init_alias() |
|
262 | self.init_alias() | |
262 | self.init_builtins() |
|
263 | self.init_builtins() | |
263 |
|
264 | |||
264 | # pre_config_initialization |
|
265 | # pre_config_initialization | |
265 | self.init_shadow_hist() |
|
266 | self.init_shadow_hist() | |
266 |
|
267 | |||
267 | # The next section should contain averything that was in ipmaker. |
|
268 | # The next section should contain averything that was in ipmaker. | |
268 | self.init_logstart() |
|
269 | self.init_logstart() | |
269 |
|
270 | |||
270 | # The following was in post_config_initialization |
|
271 | # The following was in post_config_initialization | |
271 | self.init_inspector() |
|
272 | self.init_inspector() | |
272 | self.init_readline() |
|
273 | self.init_readline() | |
273 | self.init_prompts() |
|
274 | self.init_prompts() | |
274 | self.init_displayhook() |
|
275 | self.init_displayhook() | |
275 | self.init_reload_doctest() |
|
276 | self.init_reload_doctest() | |
276 | self.init_magics() |
|
277 | self.init_magics() | |
277 | self.init_pdb() |
|
278 | self.init_pdb() | |
278 | self.init_extension_manager() |
|
279 | self.init_extension_manager() | |
279 | self.init_plugin_manager() |
|
280 | self.init_plugin_manager() | |
280 | self.hooks.late_startup_hook() |
|
281 | self.hooks.late_startup_hook() | |
281 |
|
282 | |||
282 | @classmethod |
|
283 | @classmethod | |
283 | def instance(cls, *args, **kwargs): |
|
284 | def instance(cls, *args, **kwargs): | |
284 | """Returns a global InteractiveShell instance.""" |
|
285 | """Returns a global InteractiveShell instance.""" | |
285 | if not hasattr(cls, "_instance"): |
|
286 | if not hasattr(cls, "_instance"): | |
286 | cls._instance = cls(*args, **kwargs) |
|
287 | cls._instance = cls(*args, **kwargs) | |
287 | return cls._instance |
|
288 | return cls._instance | |
288 |
|
289 | |||
289 | @classmethod |
|
290 | @classmethod | |
290 | def initialized(cls): |
|
291 | def initialized(cls): | |
291 | return hasattr(cls, "_instance") |
|
292 | return hasattr(cls, "_instance") | |
292 |
|
293 | |||
293 | def get_ipython(self): |
|
294 | def get_ipython(self): | |
294 | """Return the currently running IPython instance.""" |
|
295 | """Return the currently running IPython instance.""" | |
295 | return self |
|
296 | return self | |
296 |
|
297 | |||
297 | #------------------------------------------------------------------------- |
|
298 | #------------------------------------------------------------------------- | |
298 | # Trait changed handlers |
|
299 | # Trait changed handlers | |
299 | #------------------------------------------------------------------------- |
|
300 | #------------------------------------------------------------------------- | |
300 |
|
301 | |||
301 | def _ipython_dir_changed(self, name, new): |
|
302 | def _ipython_dir_changed(self, name, new): | |
302 | if not os.path.isdir(new): |
|
303 | if not os.path.isdir(new): | |
303 | os.makedirs(new, mode = 0777) |
|
304 | os.makedirs(new, mode = 0777) | |
304 |
|
305 | |||
305 | def set_autoindent(self,value=None): |
|
306 | def set_autoindent(self,value=None): | |
306 | """Set the autoindent flag, checking for readline support. |
|
307 | """Set the autoindent flag, checking for readline support. | |
307 |
|
308 | |||
308 | If called with no arguments, it acts as a toggle.""" |
|
309 | If called with no arguments, it acts as a toggle.""" | |
309 |
|
310 | |||
310 | if not self.has_readline: |
|
311 | if not self.has_readline: | |
311 | if os.name == 'posix': |
|
312 | if os.name == 'posix': | |
312 | warn("The auto-indent feature requires the readline library") |
|
313 | warn("The auto-indent feature requires the readline library") | |
313 | self.autoindent = 0 |
|
314 | self.autoindent = 0 | |
314 | return |
|
315 | return | |
315 | if value is None: |
|
316 | if value is None: | |
316 | self.autoindent = not self.autoindent |
|
317 | self.autoindent = not self.autoindent | |
317 | else: |
|
318 | else: | |
318 | self.autoindent = value |
|
319 | self.autoindent = value | |
319 |
|
320 | |||
320 | #------------------------------------------------------------------------- |
|
321 | #------------------------------------------------------------------------- | |
321 | # init_* methods called by __init__ |
|
322 | # init_* methods called by __init__ | |
322 | #------------------------------------------------------------------------- |
|
323 | #------------------------------------------------------------------------- | |
323 |
|
324 | |||
324 | def init_ipython_dir(self, ipython_dir): |
|
325 | def init_ipython_dir(self, ipython_dir): | |
325 | if ipython_dir is not None: |
|
326 | if ipython_dir is not None: | |
326 | self.ipython_dir = ipython_dir |
|
327 | self.ipython_dir = ipython_dir | |
327 | self.config.Global.ipython_dir = self.ipython_dir |
|
328 | self.config.Global.ipython_dir = self.ipython_dir | |
328 | return |
|
329 | return | |
329 |
|
330 | |||
330 | if hasattr(self.config.Global, 'ipython_dir'): |
|
331 | if hasattr(self.config.Global, 'ipython_dir'): | |
331 | self.ipython_dir = self.config.Global.ipython_dir |
|
332 | self.ipython_dir = self.config.Global.ipython_dir | |
332 | else: |
|
333 | else: | |
333 | self.ipython_dir = get_ipython_dir() |
|
334 | self.ipython_dir = get_ipython_dir() | |
334 |
|
335 | |||
335 | # All children can just read this |
|
336 | # All children can just read this | |
336 | self.config.Global.ipython_dir = self.ipython_dir |
|
337 | self.config.Global.ipython_dir = self.ipython_dir | |
337 |
|
338 | |||
338 | def init_instance_attrs(self): |
|
339 | def init_instance_attrs(self): | |
339 | self.more = False |
|
340 | self.more = False | |
340 |
|
341 | |||
341 | # command compiler |
|
342 | # command compiler | |
342 | self.compile = codeop.CommandCompiler() |
|
343 | self.compile = codeop.CommandCompiler() | |
343 |
|
344 | |||
344 | # User input buffer |
|
345 | # User input buffer | |
345 | self.buffer = [] |
|
346 | self.buffer = [] | |
346 |
|
347 | |||
347 | # Make an empty namespace, which extension writers can rely on both |
|
348 | # Make an empty namespace, which extension writers can rely on both | |
348 | # existing and NEVER being used by ipython itself. This gives them a |
|
349 | # existing and NEVER being used by ipython itself. This gives them a | |
349 | # convenient location for storing additional information and state |
|
350 | # convenient location for storing additional information and state | |
350 | # their extensions may require, without fear of collisions with other |
|
351 | # their extensions may require, without fear of collisions with other | |
351 | # ipython names that may develop later. |
|
352 | # ipython names that may develop later. | |
352 | self.meta = Struct() |
|
353 | self.meta = Struct() | |
353 |
|
354 | |||
354 | # Object variable to store code object waiting execution. This is |
|
355 | # Object variable to store code object waiting execution. This is | |
355 | # used mainly by the multithreaded shells, but it can come in handy in |
|
356 | # used mainly by the multithreaded shells, but it can come in handy in | |
356 | # other situations. No need to use a Queue here, since it's a single |
|
357 | # other situations. No need to use a Queue here, since it's a single | |
357 | # item which gets cleared once run. |
|
358 | # item which gets cleared once run. | |
358 | self.code_to_run = None |
|
359 | self.code_to_run = None | |
359 |
|
360 | |||
360 | # Temporary files used for various purposes. Deleted at exit. |
|
361 | # Temporary files used for various purposes. Deleted at exit. | |
361 | self.tempfiles = [] |
|
362 | self.tempfiles = [] | |
362 |
|
363 | |||
363 | # Keep track of readline usage (later set by init_readline) |
|
364 | # Keep track of readline usage (later set by init_readline) | |
364 | self.has_readline = False |
|
365 | self.has_readline = False | |
365 |
|
366 | |||
366 | # keep track of where we started running (mainly for crash post-mortem) |
|
367 | # keep track of where we started running (mainly for crash post-mortem) | |
367 | # This is not being used anywhere currently. |
|
368 | # This is not being used anywhere currently. | |
368 | self.starting_dir = os.getcwd() |
|
369 | self.starting_dir = os.getcwd() | |
369 |
|
370 | |||
370 | # Indentation management |
|
371 | # Indentation management | |
371 | self.indent_current_nsp = 0 |
|
372 | self.indent_current_nsp = 0 | |
372 |
|
373 | |||
373 | def init_encoding(self): |
|
374 | def init_encoding(self): | |
374 | # Get system encoding at startup time. Certain terminals (like Emacs |
|
375 | # Get system encoding at startup time. Certain terminals (like Emacs | |
375 | # under Win32 have it set to None, and we need to have a known valid |
|
376 | # under Win32 have it set to None, and we need to have a known valid | |
376 | # encoding to use in the raw_input() method |
|
377 | # encoding to use in the raw_input() method | |
377 | try: |
|
378 | try: | |
378 | self.stdin_encoding = sys.stdin.encoding or 'ascii' |
|
379 | self.stdin_encoding = sys.stdin.encoding or 'ascii' | |
379 | except AttributeError: |
|
380 | except AttributeError: | |
380 | self.stdin_encoding = 'ascii' |
|
381 | self.stdin_encoding = 'ascii' | |
381 |
|
382 | |||
382 | def init_syntax_highlighting(self): |
|
383 | def init_syntax_highlighting(self): | |
383 | # Python source parser/formatter for syntax highlighting |
|
384 | # Python source parser/formatter for syntax highlighting | |
384 | pyformat = PyColorize.Parser().format |
|
385 | pyformat = PyColorize.Parser().format | |
385 | self.pycolorize = lambda src: pyformat(src,'str',self.colors) |
|
386 | self.pycolorize = lambda src: pyformat(src,'str',self.colors) | |
386 |
|
387 | |||
387 | def init_pushd_popd_magic(self): |
|
388 | def init_pushd_popd_magic(self): | |
388 | # for pushd/popd management |
|
389 | # for pushd/popd management | |
389 | try: |
|
390 | try: | |
390 | self.home_dir = get_home_dir() |
|
391 | self.home_dir = get_home_dir() | |
391 | except HomeDirError, msg: |
|
392 | except HomeDirError, msg: | |
392 | fatal(msg) |
|
393 | fatal(msg) | |
393 |
|
394 | |||
394 | self.dir_stack = [] |
|
395 | self.dir_stack = [] | |
395 |
|
396 | |||
396 | def init_logger(self): |
|
397 | def init_logger(self): | |
397 | self.logger = Logger(self, logfname='ipython_log.py', logmode='rotate') |
|
398 | self.logger = Logger(self, logfname='ipython_log.py', logmode='rotate') | |
398 | # local shortcut, this is used a LOT |
|
399 | # local shortcut, this is used a LOT | |
399 | self.log = self.logger.log |
|
400 | self.log = self.logger.log | |
400 |
|
401 | |||
401 | def init_logstart(self): |
|
402 | def init_logstart(self): | |
402 | if self.logappend: |
|
403 | if self.logappend: | |
403 | self.magic_logstart(self.logappend + ' append') |
|
404 | self.magic_logstart(self.logappend + ' append') | |
404 | elif self.logfile: |
|
405 | elif self.logfile: | |
405 | self.magic_logstart(self.logfile) |
|
406 | self.magic_logstart(self.logfile) | |
406 | elif self.logstart: |
|
407 | elif self.logstart: | |
407 | self.magic_logstart() |
|
408 | self.magic_logstart() | |
408 |
|
409 | |||
409 | def init_builtins(self): |
|
410 | def init_builtins(self): | |
410 | self.builtin_trap = BuiltinTrap(shell=self) |
|
411 | self.builtin_trap = BuiltinTrap(shell=self) | |
411 |
|
412 | |||
412 | def init_inspector(self): |
|
413 | def init_inspector(self): | |
413 | # Object inspector |
|
414 | # Object inspector | |
414 | self.inspector = oinspect.Inspector(oinspect.InspectColors, |
|
415 | self.inspector = oinspect.Inspector(oinspect.InspectColors, | |
415 | PyColorize.ANSICodeColors, |
|
416 | PyColorize.ANSICodeColors, | |
416 | 'NoColor', |
|
417 | 'NoColor', | |
417 | self.object_info_string_level) |
|
418 | self.object_info_string_level) | |
418 |
|
419 | |||
419 | def init_io(self): |
|
420 | def init_io(self): | |
420 | import IPython.utils.io |
|
421 | import IPython.utils.io | |
421 | if sys.platform == 'win32' and readline.have_readline and \ |
|
422 | if sys.platform == 'win32' and readline.have_readline and \ | |
422 | self.readline_use: |
|
423 | self.readline_use: | |
423 | Term = IPython.utils.io.IOTerm( |
|
424 | Term = IPython.utils.io.IOTerm( | |
424 | cout=readline._outputfile,cerr=readline._outputfile |
|
425 | cout=readline._outputfile,cerr=readline._outputfile | |
425 | ) |
|
426 | ) | |
426 | else: |
|
427 | else: | |
427 | Term = IPython.utils.io.IOTerm() |
|
428 | Term = IPython.utils.io.IOTerm() | |
428 | IPython.utils.io.Term = Term |
|
429 | IPython.utils.io.Term = Term | |
429 |
|
430 | |||
430 | def init_prompts(self): |
|
431 | def init_prompts(self): | |
431 | # TODO: This is a pass for now because the prompts are managed inside |
|
432 | # TODO: This is a pass for now because the prompts are managed inside | |
432 | # the DisplayHook. Once there is a separate prompt manager, this |
|
433 | # the DisplayHook. Once there is a separate prompt manager, this | |
433 | # will initialize that object and all prompt related information. |
|
434 | # will initialize that object and all prompt related information. | |
434 | pass |
|
435 | pass | |
435 |
|
436 | |||
436 | def init_displayhook(self): |
|
437 | def init_displayhook(self): | |
437 | # Initialize displayhook, set in/out prompts and printing system |
|
438 | # Initialize displayhook, set in/out prompts and printing system | |
438 |
self.displayhook = |
|
439 | self.displayhook = self.displayhook_class( | |
439 | cache_size=self.cache_size, |
|
440 | shell=self, | |
440 | input_sep = self.separate_in, |
|
441 | cache_size=self.cache_size, | |
441 |
|
|
442 | input_sep = self.separate_in, | |
442 |
|
|
443 | output_sep = self.separate_out, | |
443 | ps1 = self.prompt_in1, |
|
444 | output_sep2 = self.separate_out2, | |
444 |
|
|
445 | ps1 = self.prompt_in1, | |
445 |
|
|
446 | ps2 = self.prompt_in2, | |
446 | pad_left = self.prompts_pad_left) |
|
447 | ps_out = self.prompt_out, | |
|
448 | pad_left = self.prompts_pad_left | |||
|
449 | ) | |||
447 | # This is a context manager that installs/revmoes the displayhook at |
|
450 | # This is a context manager that installs/revmoes the displayhook at | |
448 | # the appropriate time. |
|
451 | # the appropriate time. | |
449 | self.display_trap = DisplayTrap(hook=self.displayhook) |
|
452 | self.display_trap = DisplayTrap(hook=self.displayhook) | |
450 |
|
453 | |||
451 | def init_reload_doctest(self): |
|
454 | def init_reload_doctest(self): | |
452 | # Do a proper resetting of doctest, including the necessary displayhook |
|
455 | # Do a proper resetting of doctest, including the necessary displayhook | |
453 | # monkeypatching |
|
456 | # monkeypatching | |
454 | try: |
|
457 | try: | |
455 | doctest_reload() |
|
458 | doctest_reload() | |
456 | except ImportError: |
|
459 | except ImportError: | |
457 | warn("doctest module does not exist.") |
|
460 | warn("doctest module does not exist.") | |
458 |
|
461 | |||
459 | #------------------------------------------------------------------------- |
|
462 | #------------------------------------------------------------------------- | |
460 | # Things related to injections into the sys module |
|
463 | # Things related to injections into the sys module | |
461 | #------------------------------------------------------------------------- |
|
464 | #------------------------------------------------------------------------- | |
462 |
|
465 | |||
463 | def save_sys_module_state(self): |
|
466 | def save_sys_module_state(self): | |
464 | """Save the state of hooks in the sys module. |
|
467 | """Save the state of hooks in the sys module. | |
465 |
|
468 | |||
466 | This has to be called after self.user_ns is created. |
|
469 | This has to be called after self.user_ns is created. | |
467 | """ |
|
470 | """ | |
468 | self._orig_sys_module_state = {} |
|
471 | self._orig_sys_module_state = {} | |
469 | self._orig_sys_module_state['stdin'] = sys.stdin |
|
472 | self._orig_sys_module_state['stdin'] = sys.stdin | |
470 | self._orig_sys_module_state['stdout'] = sys.stdout |
|
473 | self._orig_sys_module_state['stdout'] = sys.stdout | |
471 | self._orig_sys_module_state['stderr'] = sys.stderr |
|
474 | self._orig_sys_module_state['stderr'] = sys.stderr | |
472 | self._orig_sys_module_state['excepthook'] = sys.excepthook |
|
475 | self._orig_sys_module_state['excepthook'] = sys.excepthook | |
473 | try: |
|
476 | try: | |
474 | self._orig_sys_modules_main_name = self.user_ns['__name__'] |
|
477 | self._orig_sys_modules_main_name = self.user_ns['__name__'] | |
475 | except KeyError: |
|
478 | except KeyError: | |
476 | pass |
|
479 | pass | |
477 |
|
480 | |||
478 | def restore_sys_module_state(self): |
|
481 | def restore_sys_module_state(self): | |
479 | """Restore the state of the sys module.""" |
|
482 | """Restore the state of the sys module.""" | |
480 | try: |
|
483 | try: | |
481 | for k, v in self._orig_sys_module_state.items(): |
|
484 | for k, v in self._orig_sys_module_state.items(): | |
482 | setattr(sys, k, v) |
|
485 | setattr(sys, k, v) | |
483 | except AttributeError: |
|
486 | except AttributeError: | |
484 | pass |
|
487 | pass | |
485 | try: |
|
488 | try: | |
486 | delattr(sys, 'ipcompleter') |
|
489 | delattr(sys, 'ipcompleter') | |
487 | except AttributeError: |
|
490 | except AttributeError: | |
488 | pass |
|
491 | pass | |
489 | # Reset what what done in self.init_sys_modules |
|
492 | # Reset what what done in self.init_sys_modules | |
490 | try: |
|
493 | try: | |
491 | sys.modules[self.user_ns['__name__']] = self._orig_sys_modules_main_name |
|
494 | sys.modules[self.user_ns['__name__']] = self._orig_sys_modules_main_name | |
492 | except (AttributeError, KeyError): |
|
495 | except (AttributeError, KeyError): | |
493 | pass |
|
496 | pass | |
494 |
|
497 | |||
495 | #------------------------------------------------------------------------- |
|
498 | #------------------------------------------------------------------------- | |
496 | # Things related to hooks |
|
499 | # Things related to hooks | |
497 | #------------------------------------------------------------------------- |
|
500 | #------------------------------------------------------------------------- | |
498 |
|
501 | |||
499 | def init_hooks(self): |
|
502 | def init_hooks(self): | |
500 | # hooks holds pointers used for user-side customizations |
|
503 | # hooks holds pointers used for user-side customizations | |
501 | self.hooks = Struct() |
|
504 | self.hooks = Struct() | |
502 |
|
505 | |||
503 | self.strdispatchers = {} |
|
506 | self.strdispatchers = {} | |
504 |
|
507 | |||
505 | # Set all default hooks, defined in the IPython.hooks module. |
|
508 | # Set all default hooks, defined in the IPython.hooks module. | |
506 | hooks = IPython.core.hooks |
|
509 | hooks = IPython.core.hooks | |
507 | for hook_name in hooks.__all__: |
|
510 | for hook_name in hooks.__all__: | |
508 | # default hooks have priority 100, i.e. low; user hooks should have |
|
511 | # default hooks have priority 100, i.e. low; user hooks should have | |
509 | # 0-100 priority |
|
512 | # 0-100 priority | |
510 | self.set_hook(hook_name,getattr(hooks,hook_name), 100) |
|
513 | self.set_hook(hook_name,getattr(hooks,hook_name), 100) | |
511 |
|
514 | |||
512 | def set_hook(self,name,hook, priority = 50, str_key = None, re_key = None): |
|
515 | def set_hook(self,name,hook, priority = 50, str_key = None, re_key = None): | |
513 | """set_hook(name,hook) -> sets an internal IPython hook. |
|
516 | """set_hook(name,hook) -> sets an internal IPython hook. | |
514 |
|
517 | |||
515 | IPython exposes some of its internal API as user-modifiable hooks. By |
|
518 | IPython exposes some of its internal API as user-modifiable hooks. By | |
516 | adding your function to one of these hooks, you can modify IPython's |
|
519 | adding your function to one of these hooks, you can modify IPython's | |
517 | behavior to call at runtime your own routines.""" |
|
520 | behavior to call at runtime your own routines.""" | |
518 |
|
521 | |||
519 | # At some point in the future, this should validate the hook before it |
|
522 | # At some point in the future, this should validate the hook before it | |
520 | # accepts it. Probably at least check that the hook takes the number |
|
523 | # accepts it. Probably at least check that the hook takes the number | |
521 | # of args it's supposed to. |
|
524 | # of args it's supposed to. | |
522 |
|
525 | |||
523 | f = new.instancemethod(hook,self,self.__class__) |
|
526 | f = new.instancemethod(hook,self,self.__class__) | |
524 |
|
527 | |||
525 | # check if the hook is for strdispatcher first |
|
528 | # check if the hook is for strdispatcher first | |
526 | if str_key is not None: |
|
529 | if str_key is not None: | |
527 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
530 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
528 | sdp.add_s(str_key, f, priority ) |
|
531 | sdp.add_s(str_key, f, priority ) | |
529 | self.strdispatchers[name] = sdp |
|
532 | self.strdispatchers[name] = sdp | |
530 | return |
|
533 | return | |
531 | if re_key is not None: |
|
534 | if re_key is not None: | |
532 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
535 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
533 | sdp.add_re(re.compile(re_key), f, priority ) |
|
536 | sdp.add_re(re.compile(re_key), f, priority ) | |
534 | self.strdispatchers[name] = sdp |
|
537 | self.strdispatchers[name] = sdp | |
535 | return |
|
538 | return | |
536 |
|
539 | |||
537 | dp = getattr(self.hooks, name, None) |
|
540 | dp = getattr(self.hooks, name, None) | |
538 | if name not in IPython.core.hooks.__all__: |
|
541 | if name not in IPython.core.hooks.__all__: | |
539 | print "Warning! Hook '%s' is not one of %s" % (name, IPython.core.hooks.__all__ ) |
|
542 | print "Warning! Hook '%s' is not one of %s" % (name, IPython.core.hooks.__all__ ) | |
540 | if not dp: |
|
543 | if not dp: | |
541 | dp = IPython.core.hooks.CommandChainDispatcher() |
|
544 | dp = IPython.core.hooks.CommandChainDispatcher() | |
542 |
|
545 | |||
543 | try: |
|
546 | try: | |
544 | dp.add(f,priority) |
|
547 | dp.add(f,priority) | |
545 | except AttributeError: |
|
548 | except AttributeError: | |
546 | # it was not commandchain, plain old func - replace |
|
549 | # it was not commandchain, plain old func - replace | |
547 | dp = f |
|
550 | dp = f | |
548 |
|
551 | |||
549 | setattr(self.hooks,name, dp) |
|
552 | setattr(self.hooks,name, dp) | |
550 |
|
553 | |||
551 | #------------------------------------------------------------------------- |
|
554 | #------------------------------------------------------------------------- | |
552 | # Things related to the "main" module |
|
555 | # Things related to the "main" module | |
553 | #------------------------------------------------------------------------- |
|
556 | #------------------------------------------------------------------------- | |
554 |
|
557 | |||
555 | def new_main_mod(self,ns=None): |
|
558 | def new_main_mod(self,ns=None): | |
556 | """Return a new 'main' module object for user code execution. |
|
559 | """Return a new 'main' module object for user code execution. | |
557 | """ |
|
560 | """ | |
558 | main_mod = self._user_main_module |
|
561 | main_mod = self._user_main_module | |
559 | init_fakemod_dict(main_mod,ns) |
|
562 | init_fakemod_dict(main_mod,ns) | |
560 | return main_mod |
|
563 | return main_mod | |
561 |
|
564 | |||
562 | def cache_main_mod(self,ns,fname): |
|
565 | def cache_main_mod(self,ns,fname): | |
563 | """Cache a main module's namespace. |
|
566 | """Cache a main module's namespace. | |
564 |
|
567 | |||
565 | When scripts are executed via %run, we must keep a reference to the |
|
568 | When scripts are executed via %run, we must keep a reference to the | |
566 | namespace of their __main__ module (a FakeModule instance) around so |
|
569 | namespace of their __main__ module (a FakeModule instance) around so | |
567 | that Python doesn't clear it, rendering objects defined therein |
|
570 | that Python doesn't clear it, rendering objects defined therein | |
568 | useless. |
|
571 | useless. | |
569 |
|
572 | |||
570 | This method keeps said reference in a private dict, keyed by the |
|
573 | This method keeps said reference in a private dict, keyed by the | |
571 | absolute path of the module object (which corresponds to the script |
|
574 | absolute path of the module object (which corresponds to the script | |
572 | path). This way, for multiple executions of the same script we only |
|
575 | path). This way, for multiple executions of the same script we only | |
573 | keep one copy of the namespace (the last one), thus preventing memory |
|
576 | keep one copy of the namespace (the last one), thus preventing memory | |
574 | leaks from old references while allowing the objects from the last |
|
577 | leaks from old references while allowing the objects from the last | |
575 | execution to be accessible. |
|
578 | execution to be accessible. | |
576 |
|
579 | |||
577 | Note: we can not allow the actual FakeModule instances to be deleted, |
|
580 | Note: we can not allow the actual FakeModule instances to be deleted, | |
578 | because of how Python tears down modules (it hard-sets all their |
|
581 | because of how Python tears down modules (it hard-sets all their | |
579 | references to None without regard for reference counts). This method |
|
582 | references to None without regard for reference counts). This method | |
580 | must therefore make a *copy* of the given namespace, to allow the |
|
583 | must therefore make a *copy* of the given namespace, to allow the | |
581 | original module's __dict__ to be cleared and reused. |
|
584 | original module's __dict__ to be cleared and reused. | |
582 |
|
585 | |||
583 |
|
586 | |||
584 | Parameters |
|
587 | Parameters | |
585 | ---------- |
|
588 | ---------- | |
586 | ns : a namespace (a dict, typically) |
|
589 | ns : a namespace (a dict, typically) | |
587 |
|
590 | |||
588 | fname : str |
|
591 | fname : str | |
589 | Filename associated with the namespace. |
|
592 | Filename associated with the namespace. | |
590 |
|
593 | |||
591 | Examples |
|
594 | Examples | |
592 | -------- |
|
595 | -------- | |
593 |
|
596 | |||
594 | In [10]: import IPython |
|
597 | In [10]: import IPython | |
595 |
|
598 | |||
596 | In [11]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
599 | In [11]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) | |
597 |
|
600 | |||
598 | In [12]: IPython.__file__ in _ip._main_ns_cache |
|
601 | In [12]: IPython.__file__ in _ip._main_ns_cache | |
599 | Out[12]: True |
|
602 | Out[12]: True | |
600 | """ |
|
603 | """ | |
601 | self._main_ns_cache[os.path.abspath(fname)] = ns.copy() |
|
604 | self._main_ns_cache[os.path.abspath(fname)] = ns.copy() | |
602 |
|
605 | |||
603 | def clear_main_mod_cache(self): |
|
606 | def clear_main_mod_cache(self): | |
604 | """Clear the cache of main modules. |
|
607 | """Clear the cache of main modules. | |
605 |
|
608 | |||
606 | Mainly for use by utilities like %reset. |
|
609 | Mainly for use by utilities like %reset. | |
607 |
|
610 | |||
608 | Examples |
|
611 | Examples | |
609 | -------- |
|
612 | -------- | |
610 |
|
613 | |||
611 | In [15]: import IPython |
|
614 | In [15]: import IPython | |
612 |
|
615 | |||
613 | In [16]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
616 | In [16]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) | |
614 |
|
617 | |||
615 | In [17]: len(_ip._main_ns_cache) > 0 |
|
618 | In [17]: len(_ip._main_ns_cache) > 0 | |
616 | Out[17]: True |
|
619 | Out[17]: True | |
617 |
|
620 | |||
618 | In [18]: _ip.clear_main_mod_cache() |
|
621 | In [18]: _ip.clear_main_mod_cache() | |
619 |
|
622 | |||
620 | In [19]: len(_ip._main_ns_cache) == 0 |
|
623 | In [19]: len(_ip._main_ns_cache) == 0 | |
621 | Out[19]: True |
|
624 | Out[19]: True | |
622 | """ |
|
625 | """ | |
623 | self._main_ns_cache.clear() |
|
626 | self._main_ns_cache.clear() | |
624 |
|
627 | |||
625 | #------------------------------------------------------------------------- |
|
628 | #------------------------------------------------------------------------- | |
626 | # Things related to debugging |
|
629 | # Things related to debugging | |
627 | #------------------------------------------------------------------------- |
|
630 | #------------------------------------------------------------------------- | |
628 |
|
631 | |||
629 | def init_pdb(self): |
|
632 | def init_pdb(self): | |
630 | # Set calling of pdb on exceptions |
|
633 | # Set calling of pdb on exceptions | |
631 | # self.call_pdb is a property |
|
634 | # self.call_pdb is a property | |
632 | self.call_pdb = self.pdb |
|
635 | self.call_pdb = self.pdb | |
633 |
|
636 | |||
634 | def _get_call_pdb(self): |
|
637 | def _get_call_pdb(self): | |
635 | return self._call_pdb |
|
638 | return self._call_pdb | |
636 |
|
639 | |||
637 | def _set_call_pdb(self,val): |
|
640 | def _set_call_pdb(self,val): | |
638 |
|
641 | |||
639 | if val not in (0,1,False,True): |
|
642 | if val not in (0,1,False,True): | |
640 | raise ValueError,'new call_pdb value must be boolean' |
|
643 | raise ValueError,'new call_pdb value must be boolean' | |
641 |
|
644 | |||
642 | # store value in instance |
|
645 | # store value in instance | |
643 | self._call_pdb = val |
|
646 | self._call_pdb = val | |
644 |
|
647 | |||
645 | # notify the actual exception handlers |
|
648 | # notify the actual exception handlers | |
646 | self.InteractiveTB.call_pdb = val |
|
649 | self.InteractiveTB.call_pdb = val | |
647 |
|
650 | |||
648 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, |
|
651 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, | |
649 | 'Control auto-activation of pdb at exceptions') |
|
652 | 'Control auto-activation of pdb at exceptions') | |
650 |
|
653 | |||
651 | def debugger(self,force=False): |
|
654 | def debugger(self,force=False): | |
652 | """Call the pydb/pdb debugger. |
|
655 | """Call the pydb/pdb debugger. | |
653 |
|
656 | |||
654 | Keywords: |
|
657 | Keywords: | |
655 |
|
658 | |||
656 | - force(False): by default, this routine checks the instance call_pdb |
|
659 | - force(False): by default, this routine checks the instance call_pdb | |
657 | flag and does not actually invoke the debugger if the flag is false. |
|
660 | flag and does not actually invoke the debugger if the flag is false. | |
658 | The 'force' option forces the debugger to activate even if the flag |
|
661 | The 'force' option forces the debugger to activate even if the flag | |
659 | is false. |
|
662 | is false. | |
660 | """ |
|
663 | """ | |
661 |
|
664 | |||
662 | if not (force or self.call_pdb): |
|
665 | if not (force or self.call_pdb): | |
663 | return |
|
666 | return | |
664 |
|
667 | |||
665 | if not hasattr(sys,'last_traceback'): |
|
668 | if not hasattr(sys,'last_traceback'): | |
666 | error('No traceback has been produced, nothing to debug.') |
|
669 | error('No traceback has been produced, nothing to debug.') | |
667 | return |
|
670 | return | |
668 |
|
671 | |||
669 | # use pydb if available |
|
672 | # use pydb if available | |
670 | if debugger.has_pydb: |
|
673 | if debugger.has_pydb: | |
671 | from pydb import pm |
|
674 | from pydb import pm | |
672 | else: |
|
675 | else: | |
673 | # fallback to our internal debugger |
|
676 | # fallback to our internal debugger | |
674 | pm = lambda : self.InteractiveTB.debugger(force=True) |
|
677 | pm = lambda : self.InteractiveTB.debugger(force=True) | |
675 | self.history_saving_wrapper(pm)() |
|
678 | self.history_saving_wrapper(pm)() | |
676 |
|
679 | |||
677 | #------------------------------------------------------------------------- |
|
680 | #------------------------------------------------------------------------- | |
678 | # Things related to IPython's various namespaces |
|
681 | # Things related to IPython's various namespaces | |
679 | #------------------------------------------------------------------------- |
|
682 | #------------------------------------------------------------------------- | |
680 |
|
683 | |||
681 | def init_create_namespaces(self, user_ns=None, user_global_ns=None): |
|
684 | def init_create_namespaces(self, user_ns=None, user_global_ns=None): | |
682 | # Create the namespace where the user will operate. user_ns is |
|
685 | # Create the namespace where the user will operate. user_ns is | |
683 | # normally the only one used, and it is passed to the exec calls as |
|
686 | # normally the only one used, and it is passed to the exec calls as | |
684 | # the locals argument. But we do carry a user_global_ns namespace |
|
687 | # the locals argument. But we do carry a user_global_ns namespace | |
685 | # given as the exec 'globals' argument, This is useful in embedding |
|
688 | # given as the exec 'globals' argument, This is useful in embedding | |
686 | # situations where the ipython shell opens in a context where the |
|
689 | # situations where the ipython shell opens in a context where the | |
687 | # distinction between locals and globals is meaningful. For |
|
690 | # distinction between locals and globals is meaningful. For | |
688 | # non-embedded contexts, it is just the same object as the user_ns dict. |
|
691 | # non-embedded contexts, it is just the same object as the user_ns dict. | |
689 |
|
692 | |||
690 | # FIXME. For some strange reason, __builtins__ is showing up at user |
|
693 | # FIXME. For some strange reason, __builtins__ is showing up at user | |
691 | # level as a dict instead of a module. This is a manual fix, but I |
|
694 | # level as a dict instead of a module. This is a manual fix, but I | |
692 | # should really track down where the problem is coming from. Alex |
|
695 | # should really track down where the problem is coming from. Alex | |
693 | # Schmolck reported this problem first. |
|
696 | # Schmolck reported this problem first. | |
694 |
|
697 | |||
695 | # A useful post by Alex Martelli on this topic: |
|
698 | # A useful post by Alex Martelli on this topic: | |
696 | # Re: inconsistent value from __builtins__ |
|
699 | # Re: inconsistent value from __builtins__ | |
697 | # Von: Alex Martelli <aleaxit@yahoo.com> |
|
700 | # Von: Alex Martelli <aleaxit@yahoo.com> | |
698 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends |
|
701 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends | |
699 | # Gruppen: comp.lang.python |
|
702 | # Gruppen: comp.lang.python | |
700 |
|
703 | |||
701 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: |
|
704 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: | |
702 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) |
|
705 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) | |
703 | # > <type 'dict'> |
|
706 | # > <type 'dict'> | |
704 | # > >>> print type(__builtins__) |
|
707 | # > >>> print type(__builtins__) | |
705 | # > <type 'module'> |
|
708 | # > <type 'module'> | |
706 | # > Is this difference in return value intentional? |
|
709 | # > Is this difference in return value intentional? | |
707 |
|
710 | |||
708 | # Well, it's documented that '__builtins__' can be either a dictionary |
|
711 | # Well, it's documented that '__builtins__' can be either a dictionary | |
709 | # or a module, and it's been that way for a long time. Whether it's |
|
712 | # or a module, and it's been that way for a long time. Whether it's | |
710 | # intentional (or sensible), I don't know. In any case, the idea is |
|
713 | # intentional (or sensible), I don't know. In any case, the idea is | |
711 | # that if you need to access the built-in namespace directly, you |
|
714 | # that if you need to access the built-in namespace directly, you | |
712 | # should start with "import __builtin__" (note, no 's') which will |
|
715 | # should start with "import __builtin__" (note, no 's') which will | |
713 | # definitely give you a module. Yeah, it's somewhat confusing:-(. |
|
716 | # definitely give you a module. Yeah, it's somewhat confusing:-(. | |
714 |
|
717 | |||
715 | # These routines return properly built dicts as needed by the rest of |
|
718 | # These routines return properly built dicts as needed by the rest of | |
716 | # the code, and can also be used by extension writers to generate |
|
719 | # the code, and can also be used by extension writers to generate | |
717 | # properly initialized namespaces. |
|
720 | # properly initialized namespaces. | |
718 | user_ns, user_global_ns = self.make_user_namespaces(user_ns, user_global_ns) |
|
721 | user_ns, user_global_ns = self.make_user_namespaces(user_ns, user_global_ns) | |
719 |
|
722 | |||
720 | # Assign namespaces |
|
723 | # Assign namespaces | |
721 | # This is the namespace where all normal user variables live |
|
724 | # This is the namespace where all normal user variables live | |
722 | self.user_ns = user_ns |
|
725 | self.user_ns = user_ns | |
723 | self.user_global_ns = user_global_ns |
|
726 | self.user_global_ns = user_global_ns | |
724 |
|
727 | |||
725 | # An auxiliary namespace that checks what parts of the user_ns were |
|
728 | # An auxiliary namespace that checks what parts of the user_ns were | |
726 | # loaded at startup, so we can list later only variables defined in |
|
729 | # loaded at startup, so we can list later only variables defined in | |
727 | # actual interactive use. Since it is always a subset of user_ns, it |
|
730 | # actual interactive use. Since it is always a subset of user_ns, it | |
728 | # doesn't need to be separately tracked in the ns_table. |
|
731 | # doesn't need to be separately tracked in the ns_table. | |
729 | self.user_ns_hidden = {} |
|
732 | self.user_ns_hidden = {} | |
730 |
|
733 | |||
731 | # A namespace to keep track of internal data structures to prevent |
|
734 | # A namespace to keep track of internal data structures to prevent | |
732 | # them from cluttering user-visible stuff. Will be updated later |
|
735 | # them from cluttering user-visible stuff. Will be updated later | |
733 | self.internal_ns = {} |
|
736 | self.internal_ns = {} | |
734 |
|
737 | |||
735 | # Now that FakeModule produces a real module, we've run into a nasty |
|
738 | # Now that FakeModule produces a real module, we've run into a nasty | |
736 | # problem: after script execution (via %run), the module where the user |
|
739 | # problem: after script execution (via %run), the module where the user | |
737 | # code ran is deleted. Now that this object is a true module (needed |
|
740 | # code ran is deleted. Now that this object is a true module (needed | |
738 | # so docetst and other tools work correctly), the Python module |
|
741 | # so docetst and other tools work correctly), the Python module | |
739 | # teardown mechanism runs over it, and sets to None every variable |
|
742 | # teardown mechanism runs over it, and sets to None every variable | |
740 | # present in that module. Top-level references to objects from the |
|
743 | # present in that module. Top-level references to objects from the | |
741 | # script survive, because the user_ns is updated with them. However, |
|
744 | # script survive, because the user_ns is updated with them. However, | |
742 | # calling functions defined in the script that use other things from |
|
745 | # calling functions defined in the script that use other things from | |
743 | # the script will fail, because the function's closure had references |
|
746 | # the script will fail, because the function's closure had references | |
744 | # to the original objects, which are now all None. So we must protect |
|
747 | # to the original objects, which are now all None. So we must protect | |
745 | # these modules from deletion by keeping a cache. |
|
748 | # these modules from deletion by keeping a cache. | |
746 | # |
|
749 | # | |
747 | # To avoid keeping stale modules around (we only need the one from the |
|
750 | # To avoid keeping stale modules around (we only need the one from the | |
748 | # last run), we use a dict keyed with the full path to the script, so |
|
751 | # last run), we use a dict keyed with the full path to the script, so | |
749 | # only the last version of the module is held in the cache. Note, |
|
752 | # only the last version of the module is held in the cache. Note, | |
750 | # however, that we must cache the module *namespace contents* (their |
|
753 | # however, that we must cache the module *namespace contents* (their | |
751 | # __dict__). Because if we try to cache the actual modules, old ones |
|
754 | # __dict__). Because if we try to cache the actual modules, old ones | |
752 | # (uncached) could be destroyed while still holding references (such as |
|
755 | # (uncached) could be destroyed while still holding references (such as | |
753 | # those held by GUI objects that tend to be long-lived)> |
|
756 | # those held by GUI objects that tend to be long-lived)> | |
754 | # |
|
757 | # | |
755 | # The %reset command will flush this cache. See the cache_main_mod() |
|
758 | # The %reset command will flush this cache. See the cache_main_mod() | |
756 | # and clear_main_mod_cache() methods for details on use. |
|
759 | # and clear_main_mod_cache() methods for details on use. | |
757 |
|
760 | |||
758 | # This is the cache used for 'main' namespaces |
|
761 | # This is the cache used for 'main' namespaces | |
759 | self._main_ns_cache = {} |
|
762 | self._main_ns_cache = {} | |
760 | # And this is the single instance of FakeModule whose __dict__ we keep |
|
763 | # And this is the single instance of FakeModule whose __dict__ we keep | |
761 | # copying and clearing for reuse on each %run |
|
764 | # copying and clearing for reuse on each %run | |
762 | self._user_main_module = FakeModule() |
|
765 | self._user_main_module = FakeModule() | |
763 |
|
766 | |||
764 | # A table holding all the namespaces IPython deals with, so that |
|
767 | # A table holding all the namespaces IPython deals with, so that | |
765 | # introspection facilities can search easily. |
|
768 | # introspection facilities can search easily. | |
766 | self.ns_table = {'user':user_ns, |
|
769 | self.ns_table = {'user':user_ns, | |
767 | 'user_global':user_global_ns, |
|
770 | 'user_global':user_global_ns, | |
768 | 'internal':self.internal_ns, |
|
771 | 'internal':self.internal_ns, | |
769 | 'builtin':__builtin__.__dict__ |
|
772 | 'builtin':__builtin__.__dict__ | |
770 | } |
|
773 | } | |
771 |
|
774 | |||
772 | # Similarly, track all namespaces where references can be held and that |
|
775 | # Similarly, track all namespaces where references can be held and that | |
773 | # we can safely clear (so it can NOT include builtin). This one can be |
|
776 | # we can safely clear (so it can NOT include builtin). This one can be | |
774 | # a simple list. |
|
777 | # a simple list. | |
775 | self.ns_refs_table = [ user_ns, user_global_ns, self.user_ns_hidden, |
|
778 | self.ns_refs_table = [ user_ns, user_global_ns, self.user_ns_hidden, | |
776 | self.internal_ns, self._main_ns_cache ] |
|
779 | self.internal_ns, self._main_ns_cache ] | |
777 |
|
780 | |||
778 | def make_user_namespaces(self, user_ns=None, user_global_ns=None): |
|
781 | def make_user_namespaces(self, user_ns=None, user_global_ns=None): | |
779 | """Return a valid local and global user interactive namespaces. |
|
782 | """Return a valid local and global user interactive namespaces. | |
780 |
|
783 | |||
781 | This builds a dict with the minimal information needed to operate as a |
|
784 | This builds a dict with the minimal information needed to operate as a | |
782 | valid IPython user namespace, which you can pass to the various |
|
785 | valid IPython user namespace, which you can pass to the various | |
783 | embedding classes in ipython. The default implementation returns the |
|
786 | embedding classes in ipython. The default implementation returns the | |
784 | same dict for both the locals and the globals to allow functions to |
|
787 | same dict for both the locals and the globals to allow functions to | |
785 | refer to variables in the namespace. Customized implementations can |
|
788 | refer to variables in the namespace. Customized implementations can | |
786 | return different dicts. The locals dictionary can actually be anything |
|
789 | return different dicts. The locals dictionary can actually be anything | |
787 | following the basic mapping protocol of a dict, but the globals dict |
|
790 | following the basic mapping protocol of a dict, but the globals dict | |
788 | must be a true dict, not even a subclass. It is recommended that any |
|
791 | must be a true dict, not even a subclass. It is recommended that any | |
789 | custom object for the locals namespace synchronize with the globals |
|
792 | custom object for the locals namespace synchronize with the globals | |
790 | dict somehow. |
|
793 | dict somehow. | |
791 |
|
794 | |||
792 | Raises TypeError if the provided globals namespace is not a true dict. |
|
795 | Raises TypeError if the provided globals namespace is not a true dict. | |
793 |
|
796 | |||
794 | Parameters |
|
797 | Parameters | |
795 | ---------- |
|
798 | ---------- | |
796 | user_ns : dict-like, optional |
|
799 | user_ns : dict-like, optional | |
797 | The current user namespace. The items in this namespace should |
|
800 | The current user namespace. The items in this namespace should | |
798 | be included in the output. If None, an appropriate blank |
|
801 | be included in the output. If None, an appropriate blank | |
799 | namespace should be created. |
|
802 | namespace should be created. | |
800 | user_global_ns : dict, optional |
|
803 | user_global_ns : dict, optional | |
801 | The current user global namespace. The items in this namespace |
|
804 | The current user global namespace. The items in this namespace | |
802 | should be included in the output. If None, an appropriate |
|
805 | should be included in the output. If None, an appropriate | |
803 | blank namespace should be created. |
|
806 | blank namespace should be created. | |
804 |
|
807 | |||
805 | Returns |
|
808 | Returns | |
806 | ------- |
|
809 | ------- | |
807 | A pair of dictionary-like object to be used as the local namespace |
|
810 | A pair of dictionary-like object to be used as the local namespace | |
808 | of the interpreter and a dict to be used as the global namespace. |
|
811 | of the interpreter and a dict to be used as the global namespace. | |
809 | """ |
|
812 | """ | |
810 |
|
813 | |||
811 |
|
814 | |||
812 | # We must ensure that __builtin__ (without the final 's') is always |
|
815 | # We must ensure that __builtin__ (without the final 's') is always | |
813 | # available and pointing to the __builtin__ *module*. For more details: |
|
816 | # available and pointing to the __builtin__ *module*. For more details: | |
814 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html |
|
817 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html | |
815 |
|
818 | |||
816 | if user_ns is None: |
|
819 | if user_ns is None: | |
817 | # Set __name__ to __main__ to better match the behavior of the |
|
820 | # Set __name__ to __main__ to better match the behavior of the | |
818 | # normal interpreter. |
|
821 | # normal interpreter. | |
819 | user_ns = {'__name__' :'__main__', |
|
822 | user_ns = {'__name__' :'__main__', | |
820 | '__builtin__' : __builtin__, |
|
823 | '__builtin__' : __builtin__, | |
821 | '__builtins__' : __builtin__, |
|
824 | '__builtins__' : __builtin__, | |
822 | } |
|
825 | } | |
823 | else: |
|
826 | else: | |
824 | user_ns.setdefault('__name__','__main__') |
|
827 | user_ns.setdefault('__name__','__main__') | |
825 | user_ns.setdefault('__builtin__',__builtin__) |
|
828 | user_ns.setdefault('__builtin__',__builtin__) | |
826 | user_ns.setdefault('__builtins__',__builtin__) |
|
829 | user_ns.setdefault('__builtins__',__builtin__) | |
827 |
|
830 | |||
828 | if user_global_ns is None: |
|
831 | if user_global_ns is None: | |
829 | user_global_ns = user_ns |
|
832 | user_global_ns = user_ns | |
830 | if type(user_global_ns) is not dict: |
|
833 | if type(user_global_ns) is not dict: | |
831 | raise TypeError("user_global_ns must be a true dict; got %r" |
|
834 | raise TypeError("user_global_ns must be a true dict; got %r" | |
832 | % type(user_global_ns)) |
|
835 | % type(user_global_ns)) | |
833 |
|
836 | |||
834 | return user_ns, user_global_ns |
|
837 | return user_ns, user_global_ns | |
835 |
|
838 | |||
836 | def init_sys_modules(self): |
|
839 | def init_sys_modules(self): | |
837 | # We need to insert into sys.modules something that looks like a |
|
840 | # We need to insert into sys.modules something that looks like a | |
838 | # module but which accesses the IPython namespace, for shelve and |
|
841 | # module but which accesses the IPython namespace, for shelve and | |
839 | # pickle to work interactively. Normally they rely on getting |
|
842 | # pickle to work interactively. Normally they rely on getting | |
840 | # everything out of __main__, but for embedding purposes each IPython |
|
843 | # everything out of __main__, but for embedding purposes each IPython | |
841 | # instance has its own private namespace, so we can't go shoving |
|
844 | # instance has its own private namespace, so we can't go shoving | |
842 | # everything into __main__. |
|
845 | # everything into __main__. | |
843 |
|
846 | |||
844 | # note, however, that we should only do this for non-embedded |
|
847 | # note, however, that we should only do this for non-embedded | |
845 | # ipythons, which really mimic the __main__.__dict__ with their own |
|
848 | # ipythons, which really mimic the __main__.__dict__ with their own | |
846 | # namespace. Embedded instances, on the other hand, should not do |
|
849 | # namespace. Embedded instances, on the other hand, should not do | |
847 | # this because they need to manage the user local/global namespaces |
|
850 | # this because they need to manage the user local/global namespaces | |
848 | # only, but they live within a 'normal' __main__ (meaning, they |
|
851 | # only, but they live within a 'normal' __main__ (meaning, they | |
849 | # shouldn't overtake the execution environment of the script they're |
|
852 | # shouldn't overtake the execution environment of the script they're | |
850 | # embedded in). |
|
853 | # embedded in). | |
851 |
|
854 | |||
852 | # This is overridden in the InteractiveShellEmbed subclass to a no-op. |
|
855 | # This is overridden in the InteractiveShellEmbed subclass to a no-op. | |
853 |
|
856 | |||
854 | try: |
|
857 | try: | |
855 | main_name = self.user_ns['__name__'] |
|
858 | main_name = self.user_ns['__name__'] | |
856 | except KeyError: |
|
859 | except KeyError: | |
857 | raise KeyError('user_ns dictionary MUST have a "__name__" key') |
|
860 | raise KeyError('user_ns dictionary MUST have a "__name__" key') | |
858 | else: |
|
861 | else: | |
859 | sys.modules[main_name] = FakeModule(self.user_ns) |
|
862 | sys.modules[main_name] = FakeModule(self.user_ns) | |
860 |
|
863 | |||
861 | def init_user_ns(self): |
|
864 | def init_user_ns(self): | |
862 | """Initialize all user-visible namespaces to their minimum defaults. |
|
865 | """Initialize all user-visible namespaces to their minimum defaults. | |
863 |
|
866 | |||
864 | Certain history lists are also initialized here, as they effectively |
|
867 | Certain history lists are also initialized here, as they effectively | |
865 | act as user namespaces. |
|
868 | act as user namespaces. | |
866 |
|
869 | |||
867 | Notes |
|
870 | Notes | |
868 | ----- |
|
871 | ----- | |
869 | All data structures here are only filled in, they are NOT reset by this |
|
872 | All data structures here are only filled in, they are NOT reset by this | |
870 | method. If they were not empty before, data will simply be added to |
|
873 | method. If they were not empty before, data will simply be added to | |
871 | therm. |
|
874 | therm. | |
872 | """ |
|
875 | """ | |
873 | # This function works in two parts: first we put a few things in |
|
876 | # This function works in two parts: first we put a few things in | |
874 | # user_ns, and we sync that contents into user_ns_hidden so that these |
|
877 | # user_ns, and we sync that contents into user_ns_hidden so that these | |
875 | # initial variables aren't shown by %who. After the sync, we add the |
|
878 | # initial variables aren't shown by %who. After the sync, we add the | |
876 | # rest of what we *do* want the user to see with %who even on a new |
|
879 | # rest of what we *do* want the user to see with %who even on a new | |
877 | # session (probably nothing, so theye really only see their own stuff) |
|
880 | # session (probably nothing, so theye really only see their own stuff) | |
878 |
|
881 | |||
879 | # The user dict must *always* have a __builtin__ reference to the |
|
882 | # The user dict must *always* have a __builtin__ reference to the | |
880 | # Python standard __builtin__ namespace, which must be imported. |
|
883 | # Python standard __builtin__ namespace, which must be imported. | |
881 | # This is so that certain operations in prompt evaluation can be |
|
884 | # This is so that certain operations in prompt evaluation can be | |
882 | # reliably executed with builtins. Note that we can NOT use |
|
885 | # reliably executed with builtins. Note that we can NOT use | |
883 | # __builtins__ (note the 's'), because that can either be a dict or a |
|
886 | # __builtins__ (note the 's'), because that can either be a dict or a | |
884 | # module, and can even mutate at runtime, depending on the context |
|
887 | # module, and can even mutate at runtime, depending on the context | |
885 | # (Python makes no guarantees on it). In contrast, __builtin__ is |
|
888 | # (Python makes no guarantees on it). In contrast, __builtin__ is | |
886 | # always a module object, though it must be explicitly imported. |
|
889 | # always a module object, though it must be explicitly imported. | |
887 |
|
890 | |||
888 | # For more details: |
|
891 | # For more details: | |
889 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html |
|
892 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html | |
890 | ns = dict(__builtin__ = __builtin__) |
|
893 | ns = dict(__builtin__ = __builtin__) | |
891 |
|
894 | |||
892 | # Put 'help' in the user namespace |
|
895 | # Put 'help' in the user namespace | |
893 | try: |
|
896 | try: | |
894 | from site import _Helper |
|
897 | from site import _Helper | |
895 | ns['help'] = _Helper() |
|
898 | ns['help'] = _Helper() | |
896 | except ImportError: |
|
899 | except ImportError: | |
897 | warn('help() not available - check site.py') |
|
900 | warn('help() not available - check site.py') | |
898 |
|
901 | |||
899 | # make global variables for user access to the histories |
|
902 | # make global variables for user access to the histories | |
900 | ns['_ih'] = self.input_hist |
|
903 | ns['_ih'] = self.input_hist | |
901 | ns['_oh'] = self.output_hist |
|
904 | ns['_oh'] = self.output_hist | |
902 | ns['_dh'] = self.dir_hist |
|
905 | ns['_dh'] = self.dir_hist | |
903 |
|
906 | |||
904 | ns['_sh'] = shadowns |
|
907 | ns['_sh'] = shadowns | |
905 |
|
908 | |||
906 | # user aliases to input and output histories. These shouldn't show up |
|
909 | # user aliases to input and output histories. These shouldn't show up | |
907 | # in %who, as they can have very large reprs. |
|
910 | # in %who, as they can have very large reprs. | |
908 | ns['In'] = self.input_hist |
|
911 | ns['In'] = self.input_hist | |
909 | ns['Out'] = self.output_hist |
|
912 | ns['Out'] = self.output_hist | |
910 |
|
913 | |||
911 | # Store myself as the public api!!! |
|
914 | # Store myself as the public api!!! | |
912 | ns['get_ipython'] = self.get_ipython |
|
915 | ns['get_ipython'] = self.get_ipython | |
913 |
|
916 | |||
914 | # Sync what we've added so far to user_ns_hidden so these aren't seen |
|
917 | # Sync what we've added so far to user_ns_hidden so these aren't seen | |
915 | # by %who |
|
918 | # by %who | |
916 | self.user_ns_hidden.update(ns) |
|
919 | self.user_ns_hidden.update(ns) | |
917 |
|
920 | |||
918 | # Anything put into ns now would show up in %who. Think twice before |
|
921 | # Anything put into ns now would show up in %who. Think twice before | |
919 | # putting anything here, as we really want %who to show the user their |
|
922 | # putting anything here, as we really want %who to show the user their | |
920 | # stuff, not our variables. |
|
923 | # stuff, not our variables. | |
921 |
|
924 | |||
922 | # Finally, update the real user's namespace |
|
925 | # Finally, update the real user's namespace | |
923 | self.user_ns.update(ns) |
|
926 | self.user_ns.update(ns) | |
924 |
|
927 | |||
925 |
|
928 | |||
926 | def reset(self): |
|
929 | def reset(self): | |
927 | """Clear all internal namespaces. |
|
930 | """Clear all internal namespaces. | |
928 |
|
931 | |||
929 | Note that this is much more aggressive than %reset, since it clears |
|
932 | Note that this is much more aggressive than %reset, since it clears | |
930 | fully all namespaces, as well as all input/output lists. |
|
933 | fully all namespaces, as well as all input/output lists. | |
931 | """ |
|
934 | """ | |
932 | for ns in self.ns_refs_table: |
|
935 | for ns in self.ns_refs_table: | |
933 | ns.clear() |
|
936 | ns.clear() | |
934 |
|
937 | |||
935 | self.alias_manager.clear_aliases() |
|
938 | self.alias_manager.clear_aliases() | |
936 |
|
939 | |||
937 | # Clear input and output histories |
|
940 | # Clear input and output histories | |
938 | self.input_hist[:] = [] |
|
941 | self.input_hist[:] = [] | |
939 | self.input_hist_raw[:] = [] |
|
942 | self.input_hist_raw[:] = [] | |
940 | self.output_hist.clear() |
|
943 | self.output_hist.clear() | |
941 |
|
944 | |||
942 | # Restore the user namespaces to minimal usability |
|
945 | # Restore the user namespaces to minimal usability | |
943 | self.init_user_ns() |
|
946 | self.init_user_ns() | |
944 |
|
947 | |||
945 | # Restore the default and user aliases |
|
948 | # Restore the default and user aliases | |
946 | self.alias_manager.init_aliases() |
|
949 | self.alias_manager.init_aliases() | |
947 |
|
950 | |||
948 | def reset_selective(self, regex=None): |
|
951 | def reset_selective(self, regex=None): | |
949 | """Clear selective variables from internal namespaces based on a specified regular expression. |
|
952 | """Clear selective variables from internal namespaces based on a specified regular expression. | |
950 |
|
953 | |||
951 | Parameters |
|
954 | Parameters | |
952 | ---------- |
|
955 | ---------- | |
953 | regex : string or compiled pattern, optional |
|
956 | regex : string or compiled pattern, optional | |
954 | A regular expression pattern that will be used in searching variable names in the users |
|
957 | A regular expression pattern that will be used in searching variable names in the users | |
955 | namespaces. |
|
958 | namespaces. | |
956 | """ |
|
959 | """ | |
957 | if regex is not None: |
|
960 | if regex is not None: | |
958 | try: |
|
961 | try: | |
959 | m = re.compile(regex) |
|
962 | m = re.compile(regex) | |
960 | except TypeError: |
|
963 | except TypeError: | |
961 | raise TypeError('regex must be a string or compiled pattern') |
|
964 | raise TypeError('regex must be a string or compiled pattern') | |
962 | # Search for keys in each namespace that match the given regex |
|
965 | # Search for keys in each namespace that match the given regex | |
963 | # If a match is found, delete the key/value pair. |
|
966 | # If a match is found, delete the key/value pair. | |
964 | for ns in self.ns_refs_table: |
|
967 | for ns in self.ns_refs_table: | |
965 | for var in ns: |
|
968 | for var in ns: | |
966 | if m.search(var): |
|
969 | if m.search(var): | |
967 | del ns[var] |
|
970 | del ns[var] | |
968 |
|
971 | |||
969 | def push(self, variables, interactive=True): |
|
972 | def push(self, variables, interactive=True): | |
970 | """Inject a group of variables into the IPython user namespace. |
|
973 | """Inject a group of variables into the IPython user namespace. | |
971 |
|
974 | |||
972 | Parameters |
|
975 | Parameters | |
973 | ---------- |
|
976 | ---------- | |
974 | variables : dict, str or list/tuple of str |
|
977 | variables : dict, str or list/tuple of str | |
975 | The variables to inject into the user's namespace. If a dict, |
|
978 | The variables to inject into the user's namespace. If a dict, | |
976 | a simple update is done. If a str, the string is assumed to |
|
979 | a simple update is done. If a str, the string is assumed to | |
977 | have variable names separated by spaces. A list/tuple of str |
|
980 | have variable names separated by spaces. A list/tuple of str | |
978 | can also be used to give the variable names. If just the variable |
|
981 | can also be used to give the variable names. If just the variable | |
979 | names are give (list/tuple/str) then the variable values looked |
|
982 | names are give (list/tuple/str) then the variable values looked | |
980 | up in the callers frame. |
|
983 | up in the callers frame. | |
981 | interactive : bool |
|
984 | interactive : bool | |
982 | If True (default), the variables will be listed with the ``who`` |
|
985 | If True (default), the variables will be listed with the ``who`` | |
983 | magic. |
|
986 | magic. | |
984 | """ |
|
987 | """ | |
985 | vdict = None |
|
988 | vdict = None | |
986 |
|
989 | |||
987 | # We need a dict of name/value pairs to do namespace updates. |
|
990 | # We need a dict of name/value pairs to do namespace updates. | |
988 | if isinstance(variables, dict): |
|
991 | if isinstance(variables, dict): | |
989 | vdict = variables |
|
992 | vdict = variables | |
990 | elif isinstance(variables, (basestring, list, tuple)): |
|
993 | elif isinstance(variables, (basestring, list, tuple)): | |
991 | if isinstance(variables, basestring): |
|
994 | if isinstance(variables, basestring): | |
992 | vlist = variables.split() |
|
995 | vlist = variables.split() | |
993 | else: |
|
996 | else: | |
994 | vlist = variables |
|
997 | vlist = variables | |
995 | vdict = {} |
|
998 | vdict = {} | |
996 | cf = sys._getframe(1) |
|
999 | cf = sys._getframe(1) | |
997 | for name in vlist: |
|
1000 | for name in vlist: | |
998 | try: |
|
1001 | try: | |
999 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) |
|
1002 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) | |
1000 | except: |
|
1003 | except: | |
1001 | print ('Could not get variable %s from %s' % |
|
1004 | print ('Could not get variable %s from %s' % | |
1002 | (name,cf.f_code.co_name)) |
|
1005 | (name,cf.f_code.co_name)) | |
1003 | else: |
|
1006 | else: | |
1004 | raise ValueError('variables must be a dict/str/list/tuple') |
|
1007 | raise ValueError('variables must be a dict/str/list/tuple') | |
1005 |
|
1008 | |||
1006 | # Propagate variables to user namespace |
|
1009 | # Propagate variables to user namespace | |
1007 | self.user_ns.update(vdict) |
|
1010 | self.user_ns.update(vdict) | |
1008 |
|
1011 | |||
1009 | # And configure interactive visibility |
|
1012 | # And configure interactive visibility | |
1010 | config_ns = self.user_ns_hidden |
|
1013 | config_ns = self.user_ns_hidden | |
1011 | if interactive: |
|
1014 | if interactive: | |
1012 | for name, val in vdict.iteritems(): |
|
1015 | for name, val in vdict.iteritems(): | |
1013 | config_ns.pop(name, None) |
|
1016 | config_ns.pop(name, None) | |
1014 | else: |
|
1017 | else: | |
1015 | for name,val in vdict.iteritems(): |
|
1018 | for name,val in vdict.iteritems(): | |
1016 | config_ns[name] = val |
|
1019 | config_ns[name] = val | |
1017 |
|
1020 | |||
1018 | #------------------------------------------------------------------------- |
|
1021 | #------------------------------------------------------------------------- | |
1019 | # Things related to history management |
|
1022 | # Things related to history management | |
1020 | #------------------------------------------------------------------------- |
|
1023 | #------------------------------------------------------------------------- | |
1021 |
|
1024 | |||
1022 | def init_history(self): |
|
1025 | def init_history(self): | |
1023 | # List of input with multi-line handling. |
|
1026 | # List of input with multi-line handling. | |
1024 | self.input_hist = InputList() |
|
1027 | self.input_hist = InputList() | |
1025 | # This one will hold the 'raw' input history, without any |
|
1028 | # This one will hold the 'raw' input history, without any | |
1026 | # pre-processing. This will allow users to retrieve the input just as |
|
1029 | # pre-processing. This will allow users to retrieve the input just as | |
1027 | # it was exactly typed in by the user, with %hist -r. |
|
1030 | # it was exactly typed in by the user, with %hist -r. | |
1028 | self.input_hist_raw = InputList() |
|
1031 | self.input_hist_raw = InputList() | |
1029 |
|
1032 | |||
1030 | # list of visited directories |
|
1033 | # list of visited directories | |
1031 | try: |
|
1034 | try: | |
1032 | self.dir_hist = [os.getcwd()] |
|
1035 | self.dir_hist = [os.getcwd()] | |
1033 | except OSError: |
|
1036 | except OSError: | |
1034 | self.dir_hist = [] |
|
1037 | self.dir_hist = [] | |
1035 |
|
1038 | |||
1036 | # dict of output history |
|
1039 | # dict of output history | |
1037 | self.output_hist = {} |
|
1040 | self.output_hist = {} | |
1038 |
|
1041 | |||
1039 | # Now the history file |
|
1042 | # Now the history file | |
1040 | if self.profile: |
|
1043 | if self.profile: | |
1041 | histfname = 'history-%s' % self.profile |
|
1044 | histfname = 'history-%s' % self.profile | |
1042 | else: |
|
1045 | else: | |
1043 | histfname = 'history' |
|
1046 | histfname = 'history' | |
1044 | self.histfile = os.path.join(self.ipython_dir, histfname) |
|
1047 | self.histfile = os.path.join(self.ipython_dir, histfname) | |
1045 |
|
1048 | |||
1046 | # Fill the history zero entry, user counter starts at 1 |
|
1049 | # Fill the history zero entry, user counter starts at 1 | |
1047 | self.input_hist.append('\n') |
|
1050 | self.input_hist.append('\n') | |
1048 | self.input_hist_raw.append('\n') |
|
1051 | self.input_hist_raw.append('\n') | |
1049 |
|
1052 | |||
1050 | def init_shadow_hist(self): |
|
1053 | def init_shadow_hist(self): | |
1051 | try: |
|
1054 | try: | |
1052 | self.db = pickleshare.PickleShareDB(self.ipython_dir + "/db") |
|
1055 | self.db = pickleshare.PickleShareDB(self.ipython_dir + "/db") | |
1053 | except exceptions.UnicodeDecodeError: |
|
1056 | except exceptions.UnicodeDecodeError: | |
1054 | print "Your ipython_dir can't be decoded to unicode!" |
|
1057 | print "Your ipython_dir can't be decoded to unicode!" | |
1055 | print "Please set HOME environment variable to something that" |
|
1058 | print "Please set HOME environment variable to something that" | |
1056 | print r"only has ASCII characters, e.g. c:\home" |
|
1059 | print r"only has ASCII characters, e.g. c:\home" | |
1057 | print "Now it is", self.ipython_dir |
|
1060 | print "Now it is", self.ipython_dir | |
1058 | sys.exit() |
|
1061 | sys.exit() | |
1059 | self.shadowhist = ipcorehist.ShadowHist(self.db) |
|
1062 | self.shadowhist = ipcorehist.ShadowHist(self.db) | |
1060 |
|
1063 | |||
1061 | def savehist(self): |
|
1064 | def savehist(self): | |
1062 | """Save input history to a file (via readline library).""" |
|
1065 | """Save input history to a file (via readline library).""" | |
1063 |
|
1066 | |||
1064 | try: |
|
1067 | try: | |
1065 | self.readline.write_history_file(self.histfile) |
|
1068 | self.readline.write_history_file(self.histfile) | |
1066 | except: |
|
1069 | except: | |
1067 | print 'Unable to save IPython command history to file: ' + \ |
|
1070 | print 'Unable to save IPython command history to file: ' + \ | |
1068 | `self.histfile` |
|
1071 | `self.histfile` | |
1069 |
|
1072 | |||
1070 | def reloadhist(self): |
|
1073 | def reloadhist(self): | |
1071 | """Reload the input history from disk file.""" |
|
1074 | """Reload the input history from disk file.""" | |
1072 |
|
1075 | |||
1073 | try: |
|
1076 | try: | |
1074 | self.readline.clear_history() |
|
1077 | self.readline.clear_history() | |
1075 | self.readline.read_history_file(self.shell.histfile) |
|
1078 | self.readline.read_history_file(self.shell.histfile) | |
1076 | except AttributeError: |
|
1079 | except AttributeError: | |
1077 | pass |
|
1080 | pass | |
1078 |
|
1081 | |||
1079 | def history_saving_wrapper(self, func): |
|
1082 | def history_saving_wrapper(self, func): | |
1080 | """ Wrap func for readline history saving |
|
1083 | """ Wrap func for readline history saving | |
1081 |
|
1084 | |||
1082 | Convert func into callable that saves & restores |
|
1085 | Convert func into callable that saves & restores | |
1083 | history around the call """ |
|
1086 | history around the call """ | |
1084 |
|
1087 | |||
1085 | if self.has_readline: |
|
1088 | if self.has_readline: | |
1086 | from IPython.utils import rlineimpl as readline |
|
1089 | from IPython.utils import rlineimpl as readline | |
1087 | else: |
|
1090 | else: | |
1088 | return func |
|
1091 | return func | |
1089 |
|
1092 | |||
1090 | def wrapper(): |
|
1093 | def wrapper(): | |
1091 | self.savehist() |
|
1094 | self.savehist() | |
1092 | try: |
|
1095 | try: | |
1093 | func() |
|
1096 | func() | |
1094 | finally: |
|
1097 | finally: | |
1095 | readline.read_history_file(self.histfile) |
|
1098 | readline.read_history_file(self.histfile) | |
1096 | return wrapper |
|
1099 | return wrapper | |
1097 |
|
1100 | |||
1098 | #------------------------------------------------------------------------- |
|
1101 | #------------------------------------------------------------------------- | |
1099 | # Things related to exception handling and tracebacks (not debugging) |
|
1102 | # Things related to exception handling and tracebacks (not debugging) | |
1100 | #------------------------------------------------------------------------- |
|
1103 | #------------------------------------------------------------------------- | |
1101 |
|
1104 | |||
1102 | def init_traceback_handlers(self, custom_exceptions): |
|
1105 | def init_traceback_handlers(self, custom_exceptions): | |
1103 | # Syntax error handler. |
|
1106 | # Syntax error handler. | |
1104 | self.SyntaxTB = SyntaxTB(color_scheme='NoColor') |
|
1107 | self.SyntaxTB = SyntaxTB(color_scheme='NoColor') | |
1105 |
|
1108 | |||
1106 | # The interactive one is initialized with an offset, meaning we always |
|
1109 | # The interactive one is initialized with an offset, meaning we always | |
1107 | # want to remove the topmost item in the traceback, which is our own |
|
1110 | # want to remove the topmost item in the traceback, which is our own | |
1108 | # internal code. Valid modes: ['Plain','Context','Verbose'] |
|
1111 | # internal code. Valid modes: ['Plain','Context','Verbose'] | |
1109 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', |
|
1112 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', | |
1110 | color_scheme='NoColor', |
|
1113 | color_scheme='NoColor', | |
1111 | tb_offset = 1) |
|
1114 | tb_offset = 1) | |
1112 |
|
1115 | |||
1113 | # The instance will store a pointer to the system-wide exception hook, |
|
1116 | # The instance will store a pointer to the system-wide exception hook, | |
1114 | # so that runtime code (such as magics) can access it. This is because |
|
1117 | # so that runtime code (such as magics) can access it. This is because | |
1115 | # during the read-eval loop, it may get temporarily overwritten. |
|
1118 | # during the read-eval loop, it may get temporarily overwritten. | |
1116 | self.sys_excepthook = sys.excepthook |
|
1119 | self.sys_excepthook = sys.excepthook | |
1117 |
|
1120 | |||
1118 | # and add any custom exception handlers the user may have specified |
|
1121 | # and add any custom exception handlers the user may have specified | |
1119 | self.set_custom_exc(*custom_exceptions) |
|
1122 | self.set_custom_exc(*custom_exceptions) | |
1120 |
|
1123 | |||
1121 | # Set the exception mode |
|
1124 | # Set the exception mode | |
1122 | self.InteractiveTB.set_mode(mode=self.xmode) |
|
1125 | self.InteractiveTB.set_mode(mode=self.xmode) | |
1123 |
|
1126 | |||
1124 | def set_custom_exc(self,exc_tuple,handler): |
|
1127 | def set_custom_exc(self,exc_tuple,handler): | |
1125 | """set_custom_exc(exc_tuple,handler) |
|
1128 | """set_custom_exc(exc_tuple,handler) | |
1126 |
|
1129 | |||
1127 | Set a custom exception handler, which will be called if any of the |
|
1130 | Set a custom exception handler, which will be called if any of the | |
1128 | exceptions in exc_tuple occur in the mainloop (specifically, in the |
|
1131 | exceptions in exc_tuple occur in the mainloop (specifically, in the | |
1129 | runcode() method. |
|
1132 | runcode() method. | |
1130 |
|
1133 | |||
1131 | Inputs: |
|
1134 | Inputs: | |
1132 |
|
1135 | |||
1133 | - exc_tuple: a *tuple* of valid exceptions to call the defined |
|
1136 | - exc_tuple: a *tuple* of valid exceptions to call the defined | |
1134 | handler for. It is very important that you use a tuple, and NOT A |
|
1137 | handler for. It is very important that you use a tuple, and NOT A | |
1135 | LIST here, because of the way Python's except statement works. If |
|
1138 | LIST here, because of the way Python's except statement works. If | |
1136 | you only want to trap a single exception, use a singleton tuple: |
|
1139 | you only want to trap a single exception, use a singleton tuple: | |
1137 |
|
1140 | |||
1138 | exc_tuple == (MyCustomException,) |
|
1141 | exc_tuple == (MyCustomException,) | |
1139 |
|
1142 | |||
1140 | - handler: this must be defined as a function with the following |
|
1143 | - handler: this must be defined as a function with the following | |
1141 | basic interface: def my_handler(self,etype,value,tb). |
|
1144 | basic interface: def my_handler(self,etype,value,tb). | |
1142 |
|
1145 | |||
1143 | This will be made into an instance method (via new.instancemethod) |
|
1146 | This will be made into an instance method (via new.instancemethod) | |
1144 | of IPython itself, and it will be called if any of the exceptions |
|
1147 | of IPython itself, and it will be called if any of the exceptions | |
1145 | listed in the exc_tuple are caught. If the handler is None, an |
|
1148 | listed in the exc_tuple are caught. If the handler is None, an | |
1146 | internal basic one is used, which just prints basic info. |
|
1149 | internal basic one is used, which just prints basic info. | |
1147 |
|
1150 | |||
1148 | WARNING: by putting in your own exception handler into IPython's main |
|
1151 | WARNING: by putting in your own exception handler into IPython's main | |
1149 | execution loop, you run a very good chance of nasty crashes. This |
|
1152 | execution loop, you run a very good chance of nasty crashes. This | |
1150 | facility should only be used if you really know what you are doing.""" |
|
1153 | facility should only be used if you really know what you are doing.""" | |
1151 |
|
1154 | |||
1152 | assert type(exc_tuple)==type(()) , \ |
|
1155 | assert type(exc_tuple)==type(()) , \ | |
1153 | "The custom exceptions must be given AS A TUPLE." |
|
1156 | "The custom exceptions must be given AS A TUPLE." | |
1154 |
|
1157 | |||
1155 | def dummy_handler(self,etype,value,tb): |
|
1158 | def dummy_handler(self,etype,value,tb): | |
1156 | print '*** Simple custom exception handler ***' |
|
1159 | print '*** Simple custom exception handler ***' | |
1157 | print 'Exception type :',etype |
|
1160 | print 'Exception type :',etype | |
1158 | print 'Exception value:',value |
|
1161 | print 'Exception value:',value | |
1159 | print 'Traceback :',tb |
|
1162 | print 'Traceback :',tb | |
1160 | print 'Source code :','\n'.join(self.buffer) |
|
1163 | print 'Source code :','\n'.join(self.buffer) | |
1161 |
|
1164 | |||
1162 | if handler is None: handler = dummy_handler |
|
1165 | if handler is None: handler = dummy_handler | |
1163 |
|
1166 | |||
1164 | self.CustomTB = new.instancemethod(handler,self,self.__class__) |
|
1167 | self.CustomTB = new.instancemethod(handler,self,self.__class__) | |
1165 | self.custom_exceptions = exc_tuple |
|
1168 | self.custom_exceptions = exc_tuple | |
1166 |
|
1169 | |||
1167 | def excepthook(self, etype, value, tb): |
|
1170 | def excepthook(self, etype, value, tb): | |
1168 | """One more defense for GUI apps that call sys.excepthook. |
|
1171 | """One more defense for GUI apps that call sys.excepthook. | |
1169 |
|
1172 | |||
1170 | GUI frameworks like wxPython trap exceptions and call |
|
1173 | GUI frameworks like wxPython trap exceptions and call | |
1171 | sys.excepthook themselves. I guess this is a feature that |
|
1174 | sys.excepthook themselves. I guess this is a feature that | |
1172 | enables them to keep running after exceptions that would |
|
1175 | enables them to keep running after exceptions that would | |
1173 | otherwise kill their mainloop. This is a bother for IPython |
|
1176 | otherwise kill their mainloop. This is a bother for IPython | |
1174 | which excepts to catch all of the program exceptions with a try: |
|
1177 | which excepts to catch all of the program exceptions with a try: | |
1175 | except: statement. |
|
1178 | except: statement. | |
1176 |
|
1179 | |||
1177 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if |
|
1180 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if | |
1178 | any app directly invokes sys.excepthook, it will look to the user like |
|
1181 | any app directly invokes sys.excepthook, it will look to the user like | |
1179 | IPython crashed. In order to work around this, we can disable the |
|
1182 | IPython crashed. In order to work around this, we can disable the | |
1180 | CrashHandler and replace it with this excepthook instead, which prints a |
|
1183 | CrashHandler and replace it with this excepthook instead, which prints a | |
1181 | regular traceback using our InteractiveTB. In this fashion, apps which |
|
1184 | regular traceback using our InteractiveTB. In this fashion, apps which | |
1182 | call sys.excepthook will generate a regular-looking exception from |
|
1185 | call sys.excepthook will generate a regular-looking exception from | |
1183 | IPython, and the CrashHandler will only be triggered by real IPython |
|
1186 | IPython, and the CrashHandler will only be triggered by real IPython | |
1184 | crashes. |
|
1187 | crashes. | |
1185 |
|
1188 | |||
1186 | This hook should be used sparingly, only in places which are not likely |
|
1189 | This hook should be used sparingly, only in places which are not likely | |
1187 | to be true IPython errors. |
|
1190 | to be true IPython errors. | |
1188 | """ |
|
1191 | """ | |
1189 | self.showtraceback((etype,value,tb),tb_offset=0) |
|
1192 | self.showtraceback((etype,value,tb),tb_offset=0) | |
1190 |
|
1193 | |||
1191 | def showtraceback(self,exc_tuple = None,filename=None,tb_offset=None, |
|
1194 | def showtraceback(self,exc_tuple = None,filename=None,tb_offset=None, | |
1192 | exception_only=False): |
|
1195 | exception_only=False): | |
1193 | """Display the exception that just occurred. |
|
1196 | """Display the exception that just occurred. | |
1194 |
|
1197 | |||
1195 | If nothing is known about the exception, this is the method which |
|
1198 | If nothing is known about the exception, this is the method which | |
1196 | should be used throughout the code for presenting user tracebacks, |
|
1199 | should be used throughout the code for presenting user tracebacks, | |
1197 | rather than directly invoking the InteractiveTB object. |
|
1200 | rather than directly invoking the InteractiveTB object. | |
1198 |
|
1201 | |||
1199 | A specific showsyntaxerror() also exists, but this method can take |
|
1202 | A specific showsyntaxerror() also exists, but this method can take | |
1200 | care of calling it if needed, so unless you are explicitly catching a |
|
1203 | care of calling it if needed, so unless you are explicitly catching a | |
1201 | SyntaxError exception, don't try to analyze the stack manually and |
|
1204 | SyntaxError exception, don't try to analyze the stack manually and | |
1202 | simply call this method.""" |
|
1205 | simply call this method.""" | |
1203 |
|
1206 | |||
1204 | try: |
|
1207 | try: | |
1205 | if exc_tuple is None: |
|
1208 | if exc_tuple is None: | |
1206 | etype, value, tb = sys.exc_info() |
|
1209 | etype, value, tb = sys.exc_info() | |
1207 | else: |
|
1210 | else: | |
1208 | etype, value, tb = exc_tuple |
|
1211 | etype, value, tb = exc_tuple | |
1209 |
|
1212 | |||
1210 | if etype is None: |
|
1213 | if etype is None: | |
1211 | if hasattr(sys, 'last_type'): |
|
1214 | if hasattr(sys, 'last_type'): | |
1212 | etype, value, tb = sys.last_type, sys.last_value, \ |
|
1215 | etype, value, tb = sys.last_type, sys.last_value, \ | |
1213 | sys.last_traceback |
|
1216 | sys.last_traceback | |
1214 | else: |
|
1217 | else: | |
1215 | self.write('No traceback available to show.\n') |
|
1218 | self.write('No traceback available to show.\n') | |
1216 | return |
|
1219 | return | |
1217 |
|
1220 | |||
1218 | if etype is SyntaxError: |
|
1221 | if etype is SyntaxError: | |
1219 | # Though this won't be called by syntax errors in the input |
|
1222 | # Though this won't be called by syntax errors in the input | |
1220 | # line, there may be SyntaxError cases whith imported code. |
|
1223 | # line, there may be SyntaxError cases whith imported code. | |
1221 | self.showsyntaxerror(filename) |
|
1224 | self.showsyntaxerror(filename) | |
1222 | elif etype is UsageError: |
|
1225 | elif etype is UsageError: | |
1223 | print "UsageError:", value |
|
1226 | print "UsageError:", value | |
1224 | else: |
|
1227 | else: | |
1225 | # WARNING: these variables are somewhat deprecated and not |
|
1228 | # WARNING: these variables are somewhat deprecated and not | |
1226 | # necessarily safe to use in a threaded environment, but tools |
|
1229 | # necessarily safe to use in a threaded environment, but tools | |
1227 | # like pdb depend on their existence, so let's set them. If we |
|
1230 | # like pdb depend on their existence, so let's set them. If we | |
1228 | # find problems in the field, we'll need to revisit their use. |
|
1231 | # find problems in the field, we'll need to revisit their use. | |
1229 | sys.last_type = etype |
|
1232 | sys.last_type = etype | |
1230 | sys.last_value = value |
|
1233 | sys.last_value = value | |
1231 | sys.last_traceback = tb |
|
1234 | sys.last_traceback = tb | |
1232 |
|
1235 | |||
1233 | if etype in self.custom_exceptions: |
|
1236 | if etype in self.custom_exceptions: | |
1234 | self.CustomTB(etype,value,tb) |
|
1237 | self.CustomTB(etype,value,tb) | |
1235 | else: |
|
1238 | else: | |
1236 | if exception_only: |
|
1239 | if exception_only: | |
1237 | m = ('An exception has occurred, use %tb to see the ' |
|
1240 | m = ('An exception has occurred, use %tb to see the ' | |
1238 | 'full traceback.') |
|
1241 | 'full traceback.') | |
1239 | print m |
|
1242 | print m | |
1240 | self.InteractiveTB.show_exception_only(etype, value) |
|
1243 | self.InteractiveTB.show_exception_only(etype, value) | |
1241 | else: |
|
1244 | else: | |
1242 | self.InteractiveTB(etype,value,tb,tb_offset=tb_offset) |
|
1245 | self.InteractiveTB(etype,value,tb,tb_offset=tb_offset) | |
1243 | if self.InteractiveTB.call_pdb: |
|
1246 | if self.InteractiveTB.call_pdb: | |
1244 | # pdb mucks up readline, fix it back |
|
1247 | # pdb mucks up readline, fix it back | |
1245 | self.set_completer() |
|
1248 | self.set_completer() | |
1246 |
|
1249 | |||
1247 | except KeyboardInterrupt: |
|
1250 | except KeyboardInterrupt: | |
1248 | self.write("\nKeyboardInterrupt\n") |
|
1251 | self.write("\nKeyboardInterrupt\n") | |
1249 |
|
1252 | |||
1250 |
|
1253 | |||
1251 | def showsyntaxerror(self, filename=None): |
|
1254 | def showsyntaxerror(self, filename=None): | |
1252 | """Display the syntax error that just occurred. |
|
1255 | """Display the syntax error that just occurred. | |
1253 |
|
1256 | |||
1254 | This doesn't display a stack trace because there isn't one. |
|
1257 | This doesn't display a stack trace because there isn't one. | |
1255 |
|
1258 | |||
1256 | If a filename is given, it is stuffed in the exception instead |
|
1259 | If a filename is given, it is stuffed in the exception instead | |
1257 | of what was there before (because Python's parser always uses |
|
1260 | of what was there before (because Python's parser always uses | |
1258 | "<string>" when reading from a string). |
|
1261 | "<string>" when reading from a string). | |
1259 | """ |
|
1262 | """ | |
1260 | etype, value, last_traceback = sys.exc_info() |
|
1263 | etype, value, last_traceback = sys.exc_info() | |
1261 |
|
1264 | |||
1262 | # See note about these variables in showtraceback() above |
|
1265 | # See note about these variables in showtraceback() above | |
1263 | sys.last_type = etype |
|
1266 | sys.last_type = etype | |
1264 | sys.last_value = value |
|
1267 | sys.last_value = value | |
1265 | sys.last_traceback = last_traceback |
|
1268 | sys.last_traceback = last_traceback | |
1266 |
|
1269 | |||
1267 | if filename and etype is SyntaxError: |
|
1270 | if filename and etype is SyntaxError: | |
1268 | # Work hard to stuff the correct filename in the exception |
|
1271 | # Work hard to stuff the correct filename in the exception | |
1269 | try: |
|
1272 | try: | |
1270 | msg, (dummy_filename, lineno, offset, line) = value |
|
1273 | msg, (dummy_filename, lineno, offset, line) = value | |
1271 | except: |
|
1274 | except: | |
1272 | # Not the format we expect; leave it alone |
|
1275 | # Not the format we expect; leave it alone | |
1273 | pass |
|
1276 | pass | |
1274 | else: |
|
1277 | else: | |
1275 | # Stuff in the right filename |
|
1278 | # Stuff in the right filename | |
1276 | try: |
|
1279 | try: | |
1277 | # Assume SyntaxError is a class exception |
|
1280 | # Assume SyntaxError is a class exception | |
1278 | value = SyntaxError(msg, (filename, lineno, offset, line)) |
|
1281 | value = SyntaxError(msg, (filename, lineno, offset, line)) | |
1279 | except: |
|
1282 | except: | |
1280 | # If that failed, assume SyntaxError is a string |
|
1283 | # If that failed, assume SyntaxError is a string | |
1281 | value = msg, (filename, lineno, offset, line) |
|
1284 | value = msg, (filename, lineno, offset, line) | |
1282 | self.SyntaxTB(etype,value,[]) |
|
1285 | self.SyntaxTB(etype,value,[]) | |
1283 |
|
1286 | |||
1284 | #------------------------------------------------------------------------- |
|
1287 | #------------------------------------------------------------------------- | |
1285 | # Things related to tab completion |
|
1288 | # Things related to tab completion | |
1286 | #------------------------------------------------------------------------- |
|
1289 | #------------------------------------------------------------------------- | |
1287 |
|
1290 | |||
1288 | def complete(self, text): |
|
1291 | def complete(self, text): | |
1289 | """Return a sorted list of all possible completions on text. |
|
1292 | """Return a sorted list of all possible completions on text. | |
1290 |
|
1293 | |||
1291 | Inputs: |
|
1294 | Inputs: | |
1292 |
|
1295 | |||
1293 | - text: a string of text to be completed on. |
|
1296 | - text: a string of text to be completed on. | |
1294 |
|
1297 | |||
1295 | This is a wrapper around the completion mechanism, similar to what |
|
1298 | This is a wrapper around the completion mechanism, similar to what | |
1296 | readline does at the command line when the TAB key is hit. By |
|
1299 | readline does at the command line when the TAB key is hit. By | |
1297 | exposing it as a method, it can be used by other non-readline |
|
1300 | exposing it as a method, it can be used by other non-readline | |
1298 | environments (such as GUIs) for text completion. |
|
1301 | environments (such as GUIs) for text completion. | |
1299 |
|
1302 | |||
1300 | Simple usage example: |
|
1303 | Simple usage example: | |
1301 |
|
1304 | |||
1302 | In [7]: x = 'hello' |
|
1305 | In [7]: x = 'hello' | |
1303 |
|
1306 | |||
1304 | In [8]: x |
|
1307 | In [8]: x | |
1305 | Out[8]: 'hello' |
|
1308 | Out[8]: 'hello' | |
1306 |
|
1309 | |||
1307 | In [9]: print x |
|
1310 | In [9]: print x | |
1308 | hello |
|
1311 | hello | |
1309 |
|
1312 | |||
1310 | In [10]: _ip.complete('x.l') |
|
1313 | In [10]: _ip.complete('x.l') | |
1311 | Out[10]: ['x.ljust', 'x.lower', 'x.lstrip'] |
|
1314 | Out[10]: ['x.ljust', 'x.lower', 'x.lstrip'] | |
1312 | """ |
|
1315 | """ | |
1313 |
|
1316 | |||
1314 | # Inject names into __builtin__ so we can complete on the added names. |
|
1317 | # Inject names into __builtin__ so we can complete on the added names. | |
1315 | with self.builtin_trap: |
|
1318 | with self.builtin_trap: | |
1316 | complete = self.Completer.complete |
|
1319 | complete = self.Completer.complete | |
1317 | state = 0 |
|
1320 | state = 0 | |
1318 | # use a dict so we get unique keys, since ipyhton's multiple |
|
1321 | # use a dict so we get unique keys, since ipyhton's multiple | |
1319 | # completers can return duplicates. When we make 2.4 a requirement, |
|
1322 | # completers can return duplicates. When we make 2.4 a requirement, | |
1320 | # start using sets instead, which are faster. |
|
1323 | # start using sets instead, which are faster. | |
1321 | comps = {} |
|
1324 | comps = {} | |
1322 | while True: |
|
1325 | while True: | |
1323 | newcomp = complete(text,state,line_buffer=text) |
|
1326 | newcomp = complete(text,state,line_buffer=text) | |
1324 | if newcomp is None: |
|
1327 | if newcomp is None: | |
1325 | break |
|
1328 | break | |
1326 | comps[newcomp] = 1 |
|
1329 | comps[newcomp] = 1 | |
1327 | state += 1 |
|
1330 | state += 1 | |
1328 | outcomps = comps.keys() |
|
1331 | outcomps = comps.keys() | |
1329 | outcomps.sort() |
|
1332 | outcomps.sort() | |
1330 | #print "T:",text,"OC:",outcomps # dbg |
|
1333 | #print "T:",text,"OC:",outcomps # dbg | |
1331 | #print "vars:",self.user_ns.keys() |
|
1334 | #print "vars:",self.user_ns.keys() | |
1332 | return outcomps |
|
1335 | return outcomps | |
1333 |
|
1336 | |||
1334 | def set_custom_completer(self,completer,pos=0): |
|
1337 | def set_custom_completer(self,completer,pos=0): | |
1335 | """Adds a new custom completer function. |
|
1338 | """Adds a new custom completer function. | |
1336 |
|
1339 | |||
1337 | The position argument (defaults to 0) is the index in the completers |
|
1340 | The position argument (defaults to 0) is the index in the completers | |
1338 | list where you want the completer to be inserted.""" |
|
1341 | list where you want the completer to be inserted.""" | |
1339 |
|
1342 | |||
1340 | newcomp = new.instancemethod(completer,self.Completer, |
|
1343 | newcomp = new.instancemethod(completer,self.Completer, | |
1341 | self.Completer.__class__) |
|
1344 | self.Completer.__class__) | |
1342 | self.Completer.matchers.insert(pos,newcomp) |
|
1345 | self.Completer.matchers.insert(pos,newcomp) | |
1343 |
|
1346 | |||
1344 | def set_completer(self): |
|
1347 | def set_completer(self): | |
1345 | """Reset readline's completer to be our own.""" |
|
1348 | """Reset readline's completer to be our own.""" | |
1346 | self.readline.set_completer(self.Completer.complete) |
|
1349 | self.readline.set_completer(self.Completer.complete) | |
1347 |
|
1350 | |||
1348 | def set_completer_frame(self, frame=None): |
|
1351 | def set_completer_frame(self, frame=None): | |
1349 | """Set the frame of the completer.""" |
|
1352 | """Set the frame of the completer.""" | |
1350 | if frame: |
|
1353 | if frame: | |
1351 | self.Completer.namespace = frame.f_locals |
|
1354 | self.Completer.namespace = frame.f_locals | |
1352 | self.Completer.global_namespace = frame.f_globals |
|
1355 | self.Completer.global_namespace = frame.f_globals | |
1353 | else: |
|
1356 | else: | |
1354 | self.Completer.namespace = self.user_ns |
|
1357 | self.Completer.namespace = self.user_ns | |
1355 | self.Completer.global_namespace = self.user_global_ns |
|
1358 | self.Completer.global_namespace = self.user_global_ns | |
1356 |
|
1359 | |||
1357 | #------------------------------------------------------------------------- |
|
1360 | #------------------------------------------------------------------------- | |
1358 | # Things related to readline |
|
1361 | # Things related to readline | |
1359 | #------------------------------------------------------------------------- |
|
1362 | #------------------------------------------------------------------------- | |
1360 |
|
1363 | |||
1361 | def init_readline(self): |
|
1364 | def init_readline(self): | |
1362 | """Command history completion/saving/reloading.""" |
|
1365 | """Command history completion/saving/reloading.""" | |
1363 |
|
1366 | |||
1364 | if self.readline_use: |
|
1367 | if self.readline_use: | |
1365 | import IPython.utils.rlineimpl as readline |
|
1368 | import IPython.utils.rlineimpl as readline | |
1366 |
|
1369 | |||
1367 | self.rl_next_input = None |
|
1370 | self.rl_next_input = None | |
1368 | self.rl_do_indent = False |
|
1371 | self.rl_do_indent = False | |
1369 |
|
1372 | |||
1370 | if not self.readline_use or not readline.have_readline: |
|
1373 | if not self.readline_use or not readline.have_readline: | |
1371 | self.has_readline = False |
|
1374 | self.has_readline = False | |
1372 | self.readline = None |
|
1375 | self.readline = None | |
1373 | # Set a number of methods that depend on readline to be no-op |
|
1376 | # Set a number of methods that depend on readline to be no-op | |
1374 | self.savehist = no_op |
|
1377 | self.savehist = no_op | |
1375 | self.reloadhist = no_op |
|
1378 | self.reloadhist = no_op | |
1376 | self.set_completer = no_op |
|
1379 | self.set_completer = no_op | |
1377 | self.set_custom_completer = no_op |
|
1380 | self.set_custom_completer = no_op | |
1378 | self.set_completer_frame = no_op |
|
1381 | self.set_completer_frame = no_op | |
1379 | warn('Readline services not available or not loaded.') |
|
1382 | warn('Readline services not available or not loaded.') | |
1380 | else: |
|
1383 | else: | |
1381 | self.has_readline = True |
|
1384 | self.has_readline = True | |
1382 | self.readline = readline |
|
1385 | self.readline = readline | |
1383 | sys.modules['readline'] = readline |
|
1386 | sys.modules['readline'] = readline | |
1384 | import atexit |
|
1387 | import atexit | |
1385 | from IPython.core.completer import IPCompleter |
|
1388 | from IPython.core.completer import IPCompleter | |
1386 | self.Completer = IPCompleter(self, |
|
1389 | self.Completer = IPCompleter(self, | |
1387 | self.user_ns, |
|
1390 | self.user_ns, | |
1388 | self.user_global_ns, |
|
1391 | self.user_global_ns, | |
1389 | self.readline_omit__names, |
|
1392 | self.readline_omit__names, | |
1390 | self.alias_manager.alias_table) |
|
1393 | self.alias_manager.alias_table) | |
1391 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) |
|
1394 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) | |
1392 | self.strdispatchers['complete_command'] = sdisp |
|
1395 | self.strdispatchers['complete_command'] = sdisp | |
1393 | self.Completer.custom_completers = sdisp |
|
1396 | self.Completer.custom_completers = sdisp | |
1394 | # Platform-specific configuration |
|
1397 | # Platform-specific configuration | |
1395 | if os.name == 'nt': |
|
1398 | if os.name == 'nt': | |
1396 | self.readline_startup_hook = readline.set_pre_input_hook |
|
1399 | self.readline_startup_hook = readline.set_pre_input_hook | |
1397 | else: |
|
1400 | else: | |
1398 | self.readline_startup_hook = readline.set_startup_hook |
|
1401 | self.readline_startup_hook = readline.set_startup_hook | |
1399 |
|
1402 | |||
1400 | # Load user's initrc file (readline config) |
|
1403 | # Load user's initrc file (readline config) | |
1401 | # Or if libedit is used, load editrc. |
|
1404 | # Or if libedit is used, load editrc. | |
1402 | inputrc_name = os.environ.get('INPUTRC') |
|
1405 | inputrc_name = os.environ.get('INPUTRC') | |
1403 | if inputrc_name is None: |
|
1406 | if inputrc_name is None: | |
1404 | home_dir = get_home_dir() |
|
1407 | home_dir = get_home_dir() | |
1405 | if home_dir is not None: |
|
1408 | if home_dir is not None: | |
1406 | inputrc_name = '.inputrc' |
|
1409 | inputrc_name = '.inputrc' | |
1407 | if readline.uses_libedit: |
|
1410 | if readline.uses_libedit: | |
1408 | inputrc_name = '.editrc' |
|
1411 | inputrc_name = '.editrc' | |
1409 | inputrc_name = os.path.join(home_dir, inputrc_name) |
|
1412 | inputrc_name = os.path.join(home_dir, inputrc_name) | |
1410 | if os.path.isfile(inputrc_name): |
|
1413 | if os.path.isfile(inputrc_name): | |
1411 | try: |
|
1414 | try: | |
1412 | readline.read_init_file(inputrc_name) |
|
1415 | readline.read_init_file(inputrc_name) | |
1413 | except: |
|
1416 | except: | |
1414 | warn('Problems reading readline initialization file <%s>' |
|
1417 | warn('Problems reading readline initialization file <%s>' | |
1415 | % inputrc_name) |
|
1418 | % inputrc_name) | |
1416 |
|
1419 | |||
1417 | # save this in sys so embedded copies can restore it properly |
|
1420 | # save this in sys so embedded copies can restore it properly | |
1418 | sys.ipcompleter = self.Completer.complete |
|
1421 | sys.ipcompleter = self.Completer.complete | |
1419 | self.set_completer() |
|
1422 | self.set_completer() | |
1420 |
|
1423 | |||
1421 | # Configure readline according to user's prefs |
|
1424 | # Configure readline according to user's prefs | |
1422 | # This is only done if GNU readline is being used. If libedit |
|
1425 | # This is only done if GNU readline is being used. If libedit | |
1423 | # is being used (as on Leopard) the readline config is |
|
1426 | # is being used (as on Leopard) the readline config is | |
1424 | # not run as the syntax for libedit is different. |
|
1427 | # not run as the syntax for libedit is different. | |
1425 | if not readline.uses_libedit: |
|
1428 | if not readline.uses_libedit: | |
1426 | for rlcommand in self.readline_parse_and_bind: |
|
1429 | for rlcommand in self.readline_parse_and_bind: | |
1427 | #print "loading rl:",rlcommand # dbg |
|
1430 | #print "loading rl:",rlcommand # dbg | |
1428 | readline.parse_and_bind(rlcommand) |
|
1431 | readline.parse_and_bind(rlcommand) | |
1429 |
|
1432 | |||
1430 | # Remove some chars from the delimiters list. If we encounter |
|
1433 | # Remove some chars from the delimiters list. If we encounter | |
1431 | # unicode chars, discard them. |
|
1434 | # unicode chars, discard them. | |
1432 | delims = readline.get_completer_delims().encode("ascii", "ignore") |
|
1435 | delims = readline.get_completer_delims().encode("ascii", "ignore") | |
1433 | delims = delims.translate(string._idmap, |
|
1436 | delims = delims.translate(string._idmap, | |
1434 | self.readline_remove_delims) |
|
1437 | self.readline_remove_delims) | |
1435 | readline.set_completer_delims(delims) |
|
1438 | readline.set_completer_delims(delims) | |
1436 | # otherwise we end up with a monster history after a while: |
|
1439 | # otherwise we end up with a monster history after a while: | |
1437 | readline.set_history_length(1000) |
|
1440 | readline.set_history_length(1000) | |
1438 | try: |
|
1441 | try: | |
1439 | #print '*** Reading readline history' # dbg |
|
1442 | #print '*** Reading readline history' # dbg | |
1440 | readline.read_history_file(self.histfile) |
|
1443 | readline.read_history_file(self.histfile) | |
1441 | except IOError: |
|
1444 | except IOError: | |
1442 | pass # It doesn't exist yet. |
|
1445 | pass # It doesn't exist yet. | |
1443 |
|
1446 | |||
1444 | atexit.register(self.atexit_operations) |
|
1447 | atexit.register(self.atexit_operations) | |
1445 | del atexit |
|
1448 | del atexit | |
1446 |
|
1449 | |||
1447 | # Configure auto-indent for all platforms |
|
1450 | # Configure auto-indent for all platforms | |
1448 | self.set_autoindent(self.autoindent) |
|
1451 | self.set_autoindent(self.autoindent) | |
1449 |
|
1452 | |||
1450 | def set_next_input(self, s): |
|
1453 | def set_next_input(self, s): | |
1451 | """ Sets the 'default' input string for the next command line. |
|
1454 | """ Sets the 'default' input string for the next command line. | |
1452 |
|
1455 | |||
1453 | Requires readline. |
|
1456 | Requires readline. | |
1454 |
|
1457 | |||
1455 | Example: |
|
1458 | Example: | |
1456 |
|
1459 | |||
1457 | [D:\ipython]|1> _ip.set_next_input("Hello Word") |
|
1460 | [D:\ipython]|1> _ip.set_next_input("Hello Word") | |
1458 | [D:\ipython]|2> Hello Word_ # cursor is here |
|
1461 | [D:\ipython]|2> Hello Word_ # cursor is here | |
1459 | """ |
|
1462 | """ | |
1460 |
|
1463 | |||
1461 | self.rl_next_input = s |
|
1464 | self.rl_next_input = s | |
1462 |
|
1465 | |||
1463 | # Maybe move this to the terminal subclass? |
|
1466 | # Maybe move this to the terminal subclass? | |
1464 | def pre_readline(self): |
|
1467 | def pre_readline(self): | |
1465 | """readline hook to be used at the start of each line. |
|
1468 | """readline hook to be used at the start of each line. | |
1466 |
|
1469 | |||
1467 | Currently it handles auto-indent only.""" |
|
1470 | Currently it handles auto-indent only.""" | |
1468 |
|
1471 | |||
1469 | if self.rl_do_indent: |
|
1472 | if self.rl_do_indent: | |
1470 | self.readline.insert_text(self._indent_current_str()) |
|
1473 | self.readline.insert_text(self._indent_current_str()) | |
1471 | if self.rl_next_input is not None: |
|
1474 | if self.rl_next_input is not None: | |
1472 | self.readline.insert_text(self.rl_next_input) |
|
1475 | self.readline.insert_text(self.rl_next_input) | |
1473 | self.rl_next_input = None |
|
1476 | self.rl_next_input = None | |
1474 |
|
1477 | |||
1475 | def _indent_current_str(self): |
|
1478 | def _indent_current_str(self): | |
1476 | """return the current level of indentation as a string""" |
|
1479 | """return the current level of indentation as a string""" | |
1477 | return self.indent_current_nsp * ' ' |
|
1480 | return self.indent_current_nsp * ' ' | |
1478 |
|
1481 | |||
1479 | #------------------------------------------------------------------------- |
|
1482 | #------------------------------------------------------------------------- | |
1480 | # Things related to magics |
|
1483 | # Things related to magics | |
1481 | #------------------------------------------------------------------------- |
|
1484 | #------------------------------------------------------------------------- | |
1482 |
|
1485 | |||
1483 | def init_magics(self): |
|
1486 | def init_magics(self): | |
1484 | # FIXME: Move the color initialization to the DisplayHook, which |
|
1487 | # FIXME: Move the color initialization to the DisplayHook, which | |
1485 | # should be split into a prompt manager and displayhook. We probably |
|
1488 | # should be split into a prompt manager and displayhook. We probably | |
1486 | # even need a centralize colors management object. |
|
1489 | # even need a centralize colors management object. | |
1487 | self.magic_colors(self.colors) |
|
1490 | self.magic_colors(self.colors) | |
1488 | # History was moved to a separate module |
|
1491 | # History was moved to a separate module | |
1489 | from . import history |
|
1492 | from . import history | |
1490 | history.init_ipython(self) |
|
1493 | history.init_ipython(self) | |
1491 |
|
1494 | |||
1492 | def magic(self,arg_s): |
|
1495 | def magic(self,arg_s): | |
1493 | """Call a magic function by name. |
|
1496 | """Call a magic function by name. | |
1494 |
|
1497 | |||
1495 | Input: a string containing the name of the magic function to call and any |
|
1498 | Input: a string containing the name of the magic function to call and any | |
1496 | additional arguments to be passed to the magic. |
|
1499 | additional arguments to be passed to the magic. | |
1497 |
|
1500 | |||
1498 | magic('name -opt foo bar') is equivalent to typing at the ipython |
|
1501 | magic('name -opt foo bar') is equivalent to typing at the ipython | |
1499 | prompt: |
|
1502 | prompt: | |
1500 |
|
1503 | |||
1501 | In[1]: %name -opt foo bar |
|
1504 | In[1]: %name -opt foo bar | |
1502 |
|
1505 | |||
1503 | To call a magic without arguments, simply use magic('name'). |
|
1506 | To call a magic without arguments, simply use magic('name'). | |
1504 |
|
1507 | |||
1505 | This provides a proper Python function to call IPython's magics in any |
|
1508 | This provides a proper Python function to call IPython's magics in any | |
1506 | valid Python code you can type at the interpreter, including loops and |
|
1509 | valid Python code you can type at the interpreter, including loops and | |
1507 | compound statements. |
|
1510 | compound statements. | |
1508 | """ |
|
1511 | """ | |
1509 | args = arg_s.split(' ',1) |
|
1512 | args = arg_s.split(' ',1) | |
1510 | magic_name = args[0] |
|
1513 | magic_name = args[0] | |
1511 | magic_name = magic_name.lstrip(prefilter.ESC_MAGIC) |
|
1514 | magic_name = magic_name.lstrip(prefilter.ESC_MAGIC) | |
1512 |
|
1515 | |||
1513 | try: |
|
1516 | try: | |
1514 | magic_args = args[1] |
|
1517 | magic_args = args[1] | |
1515 | except IndexError: |
|
1518 | except IndexError: | |
1516 | magic_args = '' |
|
1519 | magic_args = '' | |
1517 | fn = getattr(self,'magic_'+magic_name,None) |
|
1520 | fn = getattr(self,'magic_'+magic_name,None) | |
1518 | if fn is None: |
|
1521 | if fn is None: | |
1519 | error("Magic function `%s` not found." % magic_name) |
|
1522 | error("Magic function `%s` not found." % magic_name) | |
1520 | else: |
|
1523 | else: | |
1521 | magic_args = self.var_expand(magic_args,1) |
|
1524 | magic_args = self.var_expand(magic_args,1) | |
1522 | with nested(self.builtin_trap,): |
|
1525 | with nested(self.builtin_trap,): | |
1523 | result = fn(magic_args) |
|
1526 | result = fn(magic_args) | |
1524 | return result |
|
1527 | return result | |
1525 |
|
1528 | |||
1526 | def define_magic(self, magicname, func): |
|
1529 | def define_magic(self, magicname, func): | |
1527 | """Expose own function as magic function for ipython |
|
1530 | """Expose own function as magic function for ipython | |
1528 |
|
1531 | |||
1529 | def foo_impl(self,parameter_s=''): |
|
1532 | def foo_impl(self,parameter_s=''): | |
1530 | 'My very own magic!. (Use docstrings, IPython reads them).' |
|
1533 | 'My very own magic!. (Use docstrings, IPython reads them).' | |
1531 | print 'Magic function. Passed parameter is between < >:' |
|
1534 | print 'Magic function. Passed parameter is between < >:' | |
1532 | print '<%s>' % parameter_s |
|
1535 | print '<%s>' % parameter_s | |
1533 | print 'The self object is:',self |
|
1536 | print 'The self object is:',self | |
1534 |
|
1537 | |||
1535 | self.define_magic('foo',foo_impl) |
|
1538 | self.define_magic('foo',foo_impl) | |
1536 | """ |
|
1539 | """ | |
1537 |
|
1540 | |||
1538 | import new |
|
1541 | import new | |
1539 | im = new.instancemethod(func,self, self.__class__) |
|
1542 | im = new.instancemethod(func,self, self.__class__) | |
1540 | old = getattr(self, "magic_" + magicname, None) |
|
1543 | old = getattr(self, "magic_" + magicname, None) | |
1541 | setattr(self, "magic_" + magicname, im) |
|
1544 | setattr(self, "magic_" + magicname, im) | |
1542 | return old |
|
1545 | return old | |
1543 |
|
1546 | |||
1544 | #------------------------------------------------------------------------- |
|
1547 | #------------------------------------------------------------------------- | |
1545 | # Things related to macros |
|
1548 | # Things related to macros | |
1546 | #------------------------------------------------------------------------- |
|
1549 | #------------------------------------------------------------------------- | |
1547 |
|
1550 | |||
1548 | def define_macro(self, name, themacro): |
|
1551 | def define_macro(self, name, themacro): | |
1549 | """Define a new macro |
|
1552 | """Define a new macro | |
1550 |
|
1553 | |||
1551 | Parameters |
|
1554 | Parameters | |
1552 | ---------- |
|
1555 | ---------- | |
1553 | name : str |
|
1556 | name : str | |
1554 | The name of the macro. |
|
1557 | The name of the macro. | |
1555 | themacro : str or Macro |
|
1558 | themacro : str or Macro | |
1556 | The action to do upon invoking the macro. If a string, a new |
|
1559 | The action to do upon invoking the macro. If a string, a new | |
1557 | Macro object is created by passing the string to it. |
|
1560 | Macro object is created by passing the string to it. | |
1558 | """ |
|
1561 | """ | |
1559 |
|
1562 | |||
1560 | from IPython.core import macro |
|
1563 | from IPython.core import macro | |
1561 |
|
1564 | |||
1562 | if isinstance(themacro, basestring): |
|
1565 | if isinstance(themacro, basestring): | |
1563 | themacro = macro.Macro(themacro) |
|
1566 | themacro = macro.Macro(themacro) | |
1564 | if not isinstance(themacro, macro.Macro): |
|
1567 | if not isinstance(themacro, macro.Macro): | |
1565 | raise ValueError('A macro must be a string or a Macro instance.') |
|
1568 | raise ValueError('A macro must be a string or a Macro instance.') | |
1566 | self.user_ns[name] = themacro |
|
1569 | self.user_ns[name] = themacro | |
1567 |
|
1570 | |||
1568 | #------------------------------------------------------------------------- |
|
1571 | #------------------------------------------------------------------------- | |
1569 | # Things related to the running of system commands |
|
1572 | # Things related to the running of system commands | |
1570 | #------------------------------------------------------------------------- |
|
1573 | #------------------------------------------------------------------------- | |
1571 |
|
1574 | |||
1572 | def system(self, cmd): |
|
1575 | def system(self, cmd): | |
1573 | """Make a system call, using IPython.""" |
|
1576 | """Make a system call, using IPython.""" | |
1574 | return self.hooks.shell_hook(self.var_expand(cmd, depth=2)) |
|
1577 | return self.hooks.shell_hook(self.var_expand(cmd, depth=2)) | |
1575 |
|
1578 | |||
1576 | #------------------------------------------------------------------------- |
|
1579 | #------------------------------------------------------------------------- | |
1577 | # Things related to aliases |
|
1580 | # Things related to aliases | |
1578 | #------------------------------------------------------------------------- |
|
1581 | #------------------------------------------------------------------------- | |
1579 |
|
1582 | |||
1580 | def init_alias(self): |
|
1583 | def init_alias(self): | |
1581 | self.alias_manager = AliasManager(shell=self, config=self.config) |
|
1584 | self.alias_manager = AliasManager(shell=self, config=self.config) | |
1582 | self.ns_table['alias'] = self.alias_manager.alias_table, |
|
1585 | self.ns_table['alias'] = self.alias_manager.alias_table, | |
1583 |
|
1586 | |||
1584 | #------------------------------------------------------------------------- |
|
1587 | #------------------------------------------------------------------------- | |
1585 | # Things related to extensions and plugins |
|
1588 | # Things related to extensions and plugins | |
1586 | #------------------------------------------------------------------------- |
|
1589 | #------------------------------------------------------------------------- | |
1587 |
|
1590 | |||
1588 | def init_extension_manager(self): |
|
1591 | def init_extension_manager(self): | |
1589 | self.extension_manager = ExtensionManager(shell=self, config=self.config) |
|
1592 | self.extension_manager = ExtensionManager(shell=self, config=self.config) | |
1590 |
|
1593 | |||
1591 | def init_plugin_manager(self): |
|
1594 | def init_plugin_manager(self): | |
1592 | self.plugin_manager = PluginManager(config=self.config) |
|
1595 | self.plugin_manager = PluginManager(config=self.config) | |
1593 |
|
1596 | |||
1594 | #------------------------------------------------------------------------- |
|
1597 | #------------------------------------------------------------------------- | |
1595 | # Things related to the prefilter |
|
1598 | # Things related to the prefilter | |
1596 | #------------------------------------------------------------------------- |
|
1599 | #------------------------------------------------------------------------- | |
1597 |
|
1600 | |||
1598 | def init_prefilter(self): |
|
1601 | def init_prefilter(self): | |
1599 | self.prefilter_manager = PrefilterManager(shell=self, config=self.config) |
|
1602 | self.prefilter_manager = PrefilterManager(shell=self, config=self.config) | |
1600 | # Ultimately this will be refactored in the new interpreter code, but |
|
1603 | # Ultimately this will be refactored in the new interpreter code, but | |
1601 | # for now, we should expose the main prefilter method (there's legacy |
|
1604 | # for now, we should expose the main prefilter method (there's legacy | |
1602 | # code out there that may rely on this). |
|
1605 | # code out there that may rely on this). | |
1603 | self.prefilter = self.prefilter_manager.prefilter_lines |
|
1606 | self.prefilter = self.prefilter_manager.prefilter_lines | |
1604 |
|
1607 | |||
1605 | #------------------------------------------------------------------------- |
|
1608 | #------------------------------------------------------------------------- | |
1606 | # Things related to the running of code |
|
1609 | # Things related to the running of code | |
1607 | #------------------------------------------------------------------------- |
|
1610 | #------------------------------------------------------------------------- | |
1608 |
|
1611 | |||
1609 | def ex(self, cmd): |
|
1612 | def ex(self, cmd): | |
1610 | """Execute a normal python statement in user namespace.""" |
|
1613 | """Execute a normal python statement in user namespace.""" | |
1611 | with nested(self.builtin_trap,): |
|
1614 | with nested(self.builtin_trap,): | |
1612 | exec cmd in self.user_global_ns, self.user_ns |
|
1615 | exec cmd in self.user_global_ns, self.user_ns | |
1613 |
|
1616 | |||
1614 | def ev(self, expr): |
|
1617 | def ev(self, expr): | |
1615 | """Evaluate python expression expr in user namespace. |
|
1618 | """Evaluate python expression expr in user namespace. | |
1616 |
|
1619 | |||
1617 | Returns the result of evaluation |
|
1620 | Returns the result of evaluation | |
1618 | """ |
|
1621 | """ | |
1619 | with nested(self.builtin_trap,): |
|
1622 | with nested(self.builtin_trap,): | |
1620 | return eval(expr, self.user_global_ns, self.user_ns) |
|
1623 | return eval(expr, self.user_global_ns, self.user_ns) | |
1621 |
|
1624 | |||
1622 | def safe_execfile(self, fname, *where, **kw): |
|
1625 | def safe_execfile(self, fname, *where, **kw): | |
1623 | """A safe version of the builtin execfile(). |
|
1626 | """A safe version of the builtin execfile(). | |
1624 |
|
1627 | |||
1625 | This version will never throw an exception, but instead print |
|
1628 | This version will never throw an exception, but instead print | |
1626 | helpful error messages to the screen. This only works on pure |
|
1629 | helpful error messages to the screen. This only works on pure | |
1627 | Python files with the .py extension. |
|
1630 | Python files with the .py extension. | |
1628 |
|
1631 | |||
1629 | Parameters |
|
1632 | Parameters | |
1630 | ---------- |
|
1633 | ---------- | |
1631 | fname : string |
|
1634 | fname : string | |
1632 | The name of the file to be executed. |
|
1635 | The name of the file to be executed. | |
1633 | where : tuple |
|
1636 | where : tuple | |
1634 | One or two namespaces, passed to execfile() as (globals,locals). |
|
1637 | One or two namespaces, passed to execfile() as (globals,locals). | |
1635 | If only one is given, it is passed as both. |
|
1638 | If only one is given, it is passed as both. | |
1636 | exit_ignore : bool (False) |
|
1639 | exit_ignore : bool (False) | |
1637 | If True, then silence SystemExit for non-zero status (it is always |
|
1640 | If True, then silence SystemExit for non-zero status (it is always | |
1638 | silenced for zero status, as it is so common). |
|
1641 | silenced for zero status, as it is so common). | |
1639 | """ |
|
1642 | """ | |
1640 | kw.setdefault('exit_ignore', False) |
|
1643 | kw.setdefault('exit_ignore', False) | |
1641 |
|
1644 | |||
1642 | fname = os.path.abspath(os.path.expanduser(fname)) |
|
1645 | fname = os.path.abspath(os.path.expanduser(fname)) | |
1643 |
|
1646 | |||
1644 | # Make sure we have a .py file |
|
1647 | # Make sure we have a .py file | |
1645 | if not fname.endswith('.py'): |
|
1648 | if not fname.endswith('.py'): | |
1646 | warn('File must end with .py to be run using execfile: <%s>' % fname) |
|
1649 | warn('File must end with .py to be run using execfile: <%s>' % fname) | |
1647 |
|
1650 | |||
1648 | # Make sure we can open the file |
|
1651 | # Make sure we can open the file | |
1649 | try: |
|
1652 | try: | |
1650 | with open(fname) as thefile: |
|
1653 | with open(fname) as thefile: | |
1651 | pass |
|
1654 | pass | |
1652 | except: |
|
1655 | except: | |
1653 | warn('Could not open file <%s> for safe execution.' % fname) |
|
1656 | warn('Could not open file <%s> for safe execution.' % fname) | |
1654 | return |
|
1657 | return | |
1655 |
|
1658 | |||
1656 | # Find things also in current directory. This is needed to mimic the |
|
1659 | # Find things also in current directory. This is needed to mimic the | |
1657 | # behavior of running a script from the system command line, where |
|
1660 | # behavior of running a script from the system command line, where | |
1658 | # Python inserts the script's directory into sys.path |
|
1661 | # Python inserts the script's directory into sys.path | |
1659 | dname = os.path.dirname(fname) |
|
1662 | dname = os.path.dirname(fname) | |
1660 |
|
1663 | |||
1661 | with prepended_to_syspath(dname): |
|
1664 | with prepended_to_syspath(dname): | |
1662 | try: |
|
1665 | try: | |
1663 | execfile(fname,*where) |
|
1666 | execfile(fname,*where) | |
1664 | except SystemExit, status: |
|
1667 | except SystemExit, status: | |
1665 | # If the call was made with 0 or None exit status (sys.exit(0) |
|
1668 | # If the call was made with 0 or None exit status (sys.exit(0) | |
1666 | # or sys.exit() ), don't bother showing a traceback, as both of |
|
1669 | # or sys.exit() ), don't bother showing a traceback, as both of | |
1667 | # these are considered normal by the OS: |
|
1670 | # these are considered normal by the OS: | |
1668 | # > python -c'import sys;sys.exit(0)'; echo $? |
|
1671 | # > python -c'import sys;sys.exit(0)'; echo $? | |
1669 | # 0 |
|
1672 | # 0 | |
1670 | # > python -c'import sys;sys.exit()'; echo $? |
|
1673 | # > python -c'import sys;sys.exit()'; echo $? | |
1671 | # 0 |
|
1674 | # 0 | |
1672 | # For other exit status, we show the exception unless |
|
1675 | # For other exit status, we show the exception unless | |
1673 | # explicitly silenced, but only in short form. |
|
1676 | # explicitly silenced, but only in short form. | |
1674 | if status.code not in (0, None) and not kw['exit_ignore']: |
|
1677 | if status.code not in (0, None) and not kw['exit_ignore']: | |
1675 | self.showtraceback(exception_only=True) |
|
1678 | self.showtraceback(exception_only=True) | |
1676 | except: |
|
1679 | except: | |
1677 | self.showtraceback() |
|
1680 | self.showtraceback() | |
1678 |
|
1681 | |||
1679 | def safe_execfile_ipy(self, fname): |
|
1682 | def safe_execfile_ipy(self, fname): | |
1680 | """Like safe_execfile, but for .ipy files with IPython syntax. |
|
1683 | """Like safe_execfile, but for .ipy files with IPython syntax. | |
1681 |
|
1684 | |||
1682 | Parameters |
|
1685 | Parameters | |
1683 | ---------- |
|
1686 | ---------- | |
1684 | fname : str |
|
1687 | fname : str | |
1685 | The name of the file to execute. The filename must have a |
|
1688 | The name of the file to execute. The filename must have a | |
1686 | .ipy extension. |
|
1689 | .ipy extension. | |
1687 | """ |
|
1690 | """ | |
1688 | fname = os.path.abspath(os.path.expanduser(fname)) |
|
1691 | fname = os.path.abspath(os.path.expanduser(fname)) | |
1689 |
|
1692 | |||
1690 | # Make sure we have a .py file |
|
1693 | # Make sure we have a .py file | |
1691 | if not fname.endswith('.ipy'): |
|
1694 | if not fname.endswith('.ipy'): | |
1692 | warn('File must end with .py to be run using execfile: <%s>' % fname) |
|
1695 | warn('File must end with .py to be run using execfile: <%s>' % fname) | |
1693 |
|
1696 | |||
1694 | # Make sure we can open the file |
|
1697 | # Make sure we can open the file | |
1695 | try: |
|
1698 | try: | |
1696 | with open(fname) as thefile: |
|
1699 | with open(fname) as thefile: | |
1697 | pass |
|
1700 | pass | |
1698 | except: |
|
1701 | except: | |
1699 | warn('Could not open file <%s> for safe execution.' % fname) |
|
1702 | warn('Could not open file <%s> for safe execution.' % fname) | |
1700 | return |
|
1703 | return | |
1701 |
|
1704 | |||
1702 | # Find things also in current directory. This is needed to mimic the |
|
1705 | # Find things also in current directory. This is needed to mimic the | |
1703 | # behavior of running a script from the system command line, where |
|
1706 | # behavior of running a script from the system command line, where | |
1704 | # Python inserts the script's directory into sys.path |
|
1707 | # Python inserts the script's directory into sys.path | |
1705 | dname = os.path.dirname(fname) |
|
1708 | dname = os.path.dirname(fname) | |
1706 |
|
1709 | |||
1707 | with prepended_to_syspath(dname): |
|
1710 | with prepended_to_syspath(dname): | |
1708 | try: |
|
1711 | try: | |
1709 | with open(fname) as thefile: |
|
1712 | with open(fname) as thefile: | |
1710 | script = thefile.read() |
|
1713 | script = thefile.read() | |
1711 | # self.runlines currently captures all exceptions |
|
1714 | # self.runlines currently captures all exceptions | |
1712 | # raise in user code. It would be nice if there were |
|
1715 | # raise in user code. It would be nice if there were | |
1713 | # versions of runlines, execfile that did raise, so |
|
1716 | # versions of runlines, execfile that did raise, so | |
1714 | # we could catch the errors. |
|
1717 | # we could catch the errors. | |
1715 | self.runlines(script, clean=True) |
|
1718 | self.runlines(script, clean=True) | |
1716 | except: |
|
1719 | except: | |
1717 | self.showtraceback() |
|
1720 | self.showtraceback() | |
1718 | warn('Unknown failure executing file: <%s>' % fname) |
|
1721 | warn('Unknown failure executing file: <%s>' % fname) | |
1719 |
|
1722 | |||
1720 | def runlines(self, lines, clean=False): |
|
1723 | def runlines(self, lines, clean=False): | |
1721 | """Run a string of one or more lines of source. |
|
1724 | """Run a string of one or more lines of source. | |
1722 |
|
1725 | |||
1723 | This method is capable of running a string containing multiple source |
|
1726 | This method is capable of running a string containing multiple source | |
1724 | lines, as if they had been entered at the IPython prompt. Since it |
|
1727 | lines, as if they had been entered at the IPython prompt. Since it | |
1725 | exposes IPython's processing machinery, the given strings can contain |
|
1728 | exposes IPython's processing machinery, the given strings can contain | |
1726 | magic calls (%magic), special shell access (!cmd), etc. |
|
1729 | magic calls (%magic), special shell access (!cmd), etc. | |
1727 | """ |
|
1730 | """ | |
1728 |
|
1731 | |||
1729 | if isinstance(lines, (list, tuple)): |
|
1732 | if isinstance(lines, (list, tuple)): | |
1730 | lines = '\n'.join(lines) |
|
1733 | lines = '\n'.join(lines) | |
1731 |
|
1734 | |||
1732 | if clean: |
|
1735 | if clean: | |
1733 | lines = self._cleanup_ipy_script(lines) |
|
1736 | lines = self._cleanup_ipy_script(lines) | |
1734 |
|
1737 | |||
1735 | # We must start with a clean buffer, in case this is run from an |
|
1738 | # We must start with a clean buffer, in case this is run from an | |
1736 | # interactive IPython session (via a magic, for example). |
|
1739 | # interactive IPython session (via a magic, for example). | |
1737 | self.resetbuffer() |
|
1740 | self.resetbuffer() | |
1738 | lines = lines.splitlines() |
|
1741 | lines = lines.splitlines() | |
1739 | more = 0 |
|
1742 | more = 0 | |
1740 |
|
1743 | |||
1741 | with nested(self.builtin_trap, self.display_trap): |
|
1744 | with nested(self.builtin_trap, self.display_trap): | |
1742 | for line in lines: |
|
1745 | for line in lines: | |
1743 | # skip blank lines so we don't mess up the prompt counter, but do |
|
1746 | # skip blank lines so we don't mess up the prompt counter, but do | |
1744 | # NOT skip even a blank line if we are in a code block (more is |
|
1747 | # NOT skip even a blank line if we are in a code block (more is | |
1745 | # true) |
|
1748 | # true) | |
1746 |
|
1749 | |||
1747 | if line or more: |
|
1750 | if line or more: | |
1748 | # push to raw history, so hist line numbers stay in sync |
|
1751 | # push to raw history, so hist line numbers stay in sync | |
1749 | self.input_hist_raw.append("# " + line + "\n") |
|
1752 | self.input_hist_raw.append("# " + line + "\n") | |
1750 | prefiltered = self.prefilter_manager.prefilter_lines(line,more) |
|
1753 | prefiltered = self.prefilter_manager.prefilter_lines(line,more) | |
1751 | more = self.push_line(prefiltered) |
|
1754 | more = self.push_line(prefiltered) | |
1752 | # IPython's runsource returns None if there was an error |
|
1755 | # IPython's runsource returns None if there was an error | |
1753 | # compiling the code. This allows us to stop processing right |
|
1756 | # compiling the code. This allows us to stop processing right | |
1754 | # away, so the user gets the error message at the right place. |
|
1757 | # away, so the user gets the error message at the right place. | |
1755 | if more is None: |
|
1758 | if more is None: | |
1756 | break |
|
1759 | break | |
1757 | else: |
|
1760 | else: | |
1758 | self.input_hist_raw.append("\n") |
|
1761 | self.input_hist_raw.append("\n") | |
1759 | # final newline in case the input didn't have it, so that the code |
|
1762 | # final newline in case the input didn't have it, so that the code | |
1760 | # actually does get executed |
|
1763 | # actually does get executed | |
1761 | if more: |
|
1764 | if more: | |
1762 | self.push_line('\n') |
|
1765 | self.push_line('\n') | |
1763 |
|
1766 | |||
1764 | def runsource(self, source, filename='<input>', symbol='single'): |
|
1767 | def runsource(self, source, filename='<input>', symbol='single'): | |
1765 | """Compile and run some source in the interpreter. |
|
1768 | """Compile and run some source in the interpreter. | |
1766 |
|
1769 | |||
1767 | Arguments are as for compile_command(). |
|
1770 | Arguments are as for compile_command(). | |
1768 |
|
1771 | |||
1769 | One several things can happen: |
|
1772 | One several things can happen: | |
1770 |
|
1773 | |||
1771 | 1) The input is incorrect; compile_command() raised an |
|
1774 | 1) The input is incorrect; compile_command() raised an | |
1772 | exception (SyntaxError or OverflowError). A syntax traceback |
|
1775 | exception (SyntaxError or OverflowError). A syntax traceback | |
1773 | will be printed by calling the showsyntaxerror() method. |
|
1776 | will be printed by calling the showsyntaxerror() method. | |
1774 |
|
1777 | |||
1775 | 2) The input is incomplete, and more input is required; |
|
1778 | 2) The input is incomplete, and more input is required; | |
1776 | compile_command() returned None. Nothing happens. |
|
1779 | compile_command() returned None. Nothing happens. | |
1777 |
|
1780 | |||
1778 | 3) The input is complete; compile_command() returned a code |
|
1781 | 3) The input is complete; compile_command() returned a code | |
1779 | object. The code is executed by calling self.runcode() (which |
|
1782 | object. The code is executed by calling self.runcode() (which | |
1780 | also handles run-time exceptions, except for SystemExit). |
|
1783 | also handles run-time exceptions, except for SystemExit). | |
1781 |
|
1784 | |||
1782 | The return value is: |
|
1785 | The return value is: | |
1783 |
|
1786 | |||
1784 | - True in case 2 |
|
1787 | - True in case 2 | |
1785 |
|
1788 | |||
1786 | - False in the other cases, unless an exception is raised, where |
|
1789 | - False in the other cases, unless an exception is raised, where | |
1787 | None is returned instead. This can be used by external callers to |
|
1790 | None is returned instead. This can be used by external callers to | |
1788 | know whether to continue feeding input or not. |
|
1791 | know whether to continue feeding input or not. | |
1789 |
|
1792 | |||
1790 | The return value can be used to decide whether to use sys.ps1 or |
|
1793 | The return value can be used to decide whether to use sys.ps1 or | |
1791 | sys.ps2 to prompt the next line.""" |
|
1794 | sys.ps2 to prompt the next line.""" | |
1792 |
|
1795 | |||
1793 | # if the source code has leading blanks, add 'if 1:\n' to it |
|
1796 | # if the source code has leading blanks, add 'if 1:\n' to it | |
1794 | # this allows execution of indented pasted code. It is tempting |
|
1797 | # this allows execution of indented pasted code. It is tempting | |
1795 | # to add '\n' at the end of source to run commands like ' a=1' |
|
1798 | # to add '\n' at the end of source to run commands like ' a=1' | |
1796 | # directly, but this fails for more complicated scenarios |
|
1799 | # directly, but this fails for more complicated scenarios | |
1797 | source=source.encode(self.stdin_encoding) |
|
1800 | source=source.encode(self.stdin_encoding) | |
1798 | if source[:1] in [' ', '\t']: |
|
1801 | if source[:1] in [' ', '\t']: | |
1799 | source = 'if 1:\n%s' % source |
|
1802 | source = 'if 1:\n%s' % source | |
1800 |
|
1803 | |||
1801 | try: |
|
1804 | try: | |
1802 | code = self.compile(source,filename,symbol) |
|
1805 | code = self.compile(source,filename,symbol) | |
1803 | except (OverflowError, SyntaxError, ValueError, TypeError, MemoryError): |
|
1806 | except (OverflowError, SyntaxError, ValueError, TypeError, MemoryError): | |
1804 | # Case 1 |
|
1807 | # Case 1 | |
1805 | self.showsyntaxerror(filename) |
|
1808 | self.showsyntaxerror(filename) | |
1806 | return None |
|
1809 | return None | |
1807 |
|
1810 | |||
1808 | if code is None: |
|
1811 | if code is None: | |
1809 | # Case 2 |
|
1812 | # Case 2 | |
1810 | return True |
|
1813 | return True | |
1811 |
|
1814 | |||
1812 | # Case 3 |
|
1815 | # Case 3 | |
1813 | # We store the code object so that threaded shells and |
|
1816 | # We store the code object so that threaded shells and | |
1814 | # custom exception handlers can access all this info if needed. |
|
1817 | # custom exception handlers can access all this info if needed. | |
1815 | # The source corresponding to this can be obtained from the |
|
1818 | # The source corresponding to this can be obtained from the | |
1816 | # buffer attribute as '\n'.join(self.buffer). |
|
1819 | # buffer attribute as '\n'.join(self.buffer). | |
1817 | self.code_to_run = code |
|
1820 | self.code_to_run = code | |
1818 | # now actually execute the code object |
|
1821 | # now actually execute the code object | |
1819 | if self.runcode(code) == 0: |
|
1822 | if self.runcode(code) == 0: | |
1820 | return False |
|
1823 | return False | |
1821 | else: |
|
1824 | else: | |
1822 | return None |
|
1825 | return None | |
1823 |
|
1826 | |||
1824 | def runcode(self,code_obj): |
|
1827 | def runcode(self,code_obj): | |
1825 | """Execute a code object. |
|
1828 | """Execute a code object. | |
1826 |
|
1829 | |||
1827 | When an exception occurs, self.showtraceback() is called to display a |
|
1830 | When an exception occurs, self.showtraceback() is called to display a | |
1828 | traceback. |
|
1831 | traceback. | |
1829 |
|
1832 | |||
1830 | Return value: a flag indicating whether the code to be run completed |
|
1833 | Return value: a flag indicating whether the code to be run completed | |
1831 | successfully: |
|
1834 | successfully: | |
1832 |
|
1835 | |||
1833 | - 0: successful execution. |
|
1836 | - 0: successful execution. | |
1834 | - 1: an error occurred. |
|
1837 | - 1: an error occurred. | |
1835 | """ |
|
1838 | """ | |
1836 |
|
1839 | |||
1837 | # Set our own excepthook in case the user code tries to call it |
|
1840 | # Set our own excepthook in case the user code tries to call it | |
1838 | # directly, so that the IPython crash handler doesn't get triggered |
|
1841 | # directly, so that the IPython crash handler doesn't get triggered | |
1839 | old_excepthook,sys.excepthook = sys.excepthook, self.excepthook |
|
1842 | old_excepthook,sys.excepthook = sys.excepthook, self.excepthook | |
1840 |
|
1843 | |||
1841 | # we save the original sys.excepthook in the instance, in case config |
|
1844 | # we save the original sys.excepthook in the instance, in case config | |
1842 | # code (such as magics) needs access to it. |
|
1845 | # code (such as magics) needs access to it. | |
1843 | self.sys_excepthook = old_excepthook |
|
1846 | self.sys_excepthook = old_excepthook | |
1844 | outflag = 1 # happens in more places, so it's easier as default |
|
1847 | outflag = 1 # happens in more places, so it's easier as default | |
1845 | try: |
|
1848 | try: | |
1846 | try: |
|
1849 | try: | |
1847 | self.hooks.pre_runcode_hook() |
|
1850 | self.hooks.pre_runcode_hook() | |
1848 | exec code_obj in self.user_global_ns, self.user_ns |
|
1851 | exec code_obj in self.user_global_ns, self.user_ns | |
1849 | finally: |
|
1852 | finally: | |
1850 | # Reset our crash handler in place |
|
1853 | # Reset our crash handler in place | |
1851 | sys.excepthook = old_excepthook |
|
1854 | sys.excepthook = old_excepthook | |
1852 | except SystemExit: |
|
1855 | except SystemExit: | |
1853 | self.resetbuffer() |
|
1856 | self.resetbuffer() | |
1854 | self.showtraceback(exception_only=True) |
|
1857 | self.showtraceback(exception_only=True) | |
1855 | warn("To exit: use any of 'exit', 'quit', %Exit or Ctrl-D.", level=1) |
|
1858 | warn("To exit: use any of 'exit', 'quit', %Exit or Ctrl-D.", level=1) | |
1856 | except self.custom_exceptions: |
|
1859 | except self.custom_exceptions: | |
1857 | etype,value,tb = sys.exc_info() |
|
1860 | etype,value,tb = sys.exc_info() | |
1858 | self.CustomTB(etype,value,tb) |
|
1861 | self.CustomTB(etype,value,tb) | |
1859 | except: |
|
1862 | except: | |
1860 | self.showtraceback() |
|
1863 | self.showtraceback() | |
1861 | else: |
|
1864 | else: | |
1862 | outflag = 0 |
|
1865 | outflag = 0 | |
1863 | if softspace(sys.stdout, 0): |
|
1866 | if softspace(sys.stdout, 0): | |
1864 |
|
1867 | |||
1865 | # Flush out code object which has been run (and source) |
|
1868 | # Flush out code object which has been run (and source) | |
1866 | self.code_to_run = None |
|
1869 | self.code_to_run = None | |
1867 | return outflag |
|
1870 | return outflag | |
1868 |
|
1871 | |||
1869 | def push_line(self, line): |
|
1872 | def push_line(self, line): | |
1870 | """Push a line to the interpreter. |
|
1873 | """Push a line to the interpreter. | |
1871 |
|
1874 | |||
1872 | The line should not have a trailing newline; it may have |
|
1875 | The line should not have a trailing newline; it may have | |
1873 | internal newlines. The line is appended to a buffer and the |
|
1876 | internal newlines. The line is appended to a buffer and the | |
1874 | interpreter's runsource() method is called with the |
|
1877 | interpreter's runsource() method is called with the | |
1875 | concatenated contents of the buffer as source. If this |
|
1878 | concatenated contents of the buffer as source. If this | |
1876 | indicates that the command was executed or invalid, the buffer |
|
1879 | indicates that the command was executed or invalid, the buffer | |
1877 | is reset; otherwise, the command is incomplete, and the buffer |
|
1880 | is reset; otherwise, the command is incomplete, and the buffer | |
1878 | is left as it was after the line was appended. The return |
|
1881 | is left as it was after the line was appended. The return | |
1879 | value is 1 if more input is required, 0 if the line was dealt |
|
1882 | value is 1 if more input is required, 0 if the line was dealt | |
1880 | with in some way (this is the same as runsource()). |
|
1883 | with in some way (this is the same as runsource()). | |
1881 | """ |
|
1884 | """ | |
1882 |
|
1885 | |||
1883 | # autoindent management should be done here, and not in the |
|
1886 | # autoindent management should be done here, and not in the | |
1884 | # interactive loop, since that one is only seen by keyboard input. We |
|
1887 | # interactive loop, since that one is only seen by keyboard input. We | |
1885 | # need this done correctly even for code run via runlines (which uses |
|
1888 | # need this done correctly even for code run via runlines (which uses | |
1886 | # push). |
|
1889 | # push). | |
1887 |
|
1890 | |||
1888 | #print 'push line: <%s>' % line # dbg |
|
1891 | #print 'push line: <%s>' % line # dbg | |
1889 | for subline in line.splitlines(): |
|
1892 | for subline in line.splitlines(): | |
1890 | self._autoindent_update(subline) |
|
1893 | self._autoindent_update(subline) | |
1891 | self.buffer.append(line) |
|
1894 | self.buffer.append(line) | |
1892 | more = self.runsource('\n'.join(self.buffer), self.filename) |
|
1895 | more = self.runsource('\n'.join(self.buffer), self.filename) | |
1893 | if not more: |
|
1896 | if not more: | |
1894 | self.resetbuffer() |
|
1897 | self.resetbuffer() | |
1895 | return more |
|
1898 | return more | |
1896 |
|
1899 | |||
1897 | def resetbuffer(self): |
|
1900 | def resetbuffer(self): | |
1898 | """Reset the input buffer.""" |
|
1901 | """Reset the input buffer.""" | |
1899 | self.buffer[:] = [] |
|
1902 | self.buffer[:] = [] | |
1900 |
|
1903 | |||
1901 | def _is_secondary_block_start(self, s): |
|
1904 | def _is_secondary_block_start(self, s): | |
1902 | if not s.endswith(':'): |
|
1905 | if not s.endswith(':'): | |
1903 | return False |
|
1906 | return False | |
1904 | if (s.startswith('elif') or |
|
1907 | if (s.startswith('elif') or | |
1905 | s.startswith('else') or |
|
1908 | s.startswith('else') or | |
1906 | s.startswith('except') or |
|
1909 | s.startswith('except') or | |
1907 | s.startswith('finally')): |
|
1910 | s.startswith('finally')): | |
1908 | return True |
|
1911 | return True | |
1909 |
|
1912 | |||
1910 | def _cleanup_ipy_script(self, script): |
|
1913 | def _cleanup_ipy_script(self, script): | |
1911 | """Make a script safe for self.runlines() |
|
1914 | """Make a script safe for self.runlines() | |
1912 |
|
1915 | |||
1913 | Currently, IPython is lines based, with blocks being detected by |
|
1916 | Currently, IPython is lines based, with blocks being detected by | |
1914 | empty lines. This is a problem for block based scripts that may |
|
1917 | empty lines. This is a problem for block based scripts that may | |
1915 | not have empty lines after blocks. This script adds those empty |
|
1918 | not have empty lines after blocks. This script adds those empty | |
1916 | lines to make scripts safe for running in the current line based |
|
1919 | lines to make scripts safe for running in the current line based | |
1917 | IPython. |
|
1920 | IPython. | |
1918 | """ |
|
1921 | """ | |
1919 | res = [] |
|
1922 | res = [] | |
1920 | lines = script.splitlines() |
|
1923 | lines = script.splitlines() | |
1921 | level = 0 |
|
1924 | level = 0 | |
1922 |
|
1925 | |||
1923 | for l in lines: |
|
1926 | for l in lines: | |
1924 | lstripped = l.lstrip() |
|
1927 | lstripped = l.lstrip() | |
1925 | stripped = l.strip() |
|
1928 | stripped = l.strip() | |
1926 | if not stripped: |
|
1929 | if not stripped: | |
1927 | continue |
|
1930 | continue | |
1928 | newlevel = len(l) - len(lstripped) |
|
1931 | newlevel = len(l) - len(lstripped) | |
1929 | if level > 0 and newlevel == 0 and \ |
|
1932 | if level > 0 and newlevel == 0 and \ | |
1930 | not self._is_secondary_block_start(stripped): |
|
1933 | not self._is_secondary_block_start(stripped): | |
1931 | # add empty line |
|
1934 | # add empty line | |
1932 | res.append('') |
|
1935 | res.append('') | |
1933 | res.append(l) |
|
1936 | res.append(l) | |
1934 | level = newlevel |
|
1937 | level = newlevel | |
1935 |
|
1938 | |||
1936 | return '\n'.join(res) + '\n' |
|
1939 | return '\n'.join(res) + '\n' | |
1937 |
|
1940 | |||
1938 | def _autoindent_update(self,line): |
|
1941 | def _autoindent_update(self,line): | |
1939 | """Keep track of the indent level.""" |
|
1942 | """Keep track of the indent level.""" | |
1940 |
|
1943 | |||
1941 | #debugx('line') |
|
1944 | #debugx('line') | |
1942 | #debugx('self.indent_current_nsp') |
|
1945 | #debugx('self.indent_current_nsp') | |
1943 | if self.autoindent: |
|
1946 | if self.autoindent: | |
1944 | if line: |
|
1947 | if line: | |
1945 | inisp = num_ini_spaces(line) |
|
1948 | inisp = num_ini_spaces(line) | |
1946 | if inisp < self.indent_current_nsp: |
|
1949 | if inisp < self.indent_current_nsp: | |
1947 | self.indent_current_nsp = inisp |
|
1950 | self.indent_current_nsp = inisp | |
1948 |
|
1951 | |||
1949 | if line[-1] == ':': |
|
1952 | if line[-1] == ':': | |
1950 | self.indent_current_nsp += 4 |
|
1953 | self.indent_current_nsp += 4 | |
1951 | elif dedent_re.match(line): |
|
1954 | elif dedent_re.match(line): | |
1952 | self.indent_current_nsp -= 4 |
|
1955 | self.indent_current_nsp -= 4 | |
1953 | else: |
|
1956 | else: | |
1954 | self.indent_current_nsp = 0 |
|
1957 | self.indent_current_nsp = 0 | |
1955 |
|
1958 | |||
1956 | #------------------------------------------------------------------------- |
|
1959 | #------------------------------------------------------------------------- | |
1957 | # Things related to GUI support and pylab |
|
1960 | # Things related to GUI support and pylab | |
1958 | #------------------------------------------------------------------------- |
|
1961 | #------------------------------------------------------------------------- | |
1959 |
|
1962 | |||
1960 | def enable_pylab(self, gui=None): |
|
1963 | def enable_pylab(self, gui=None): | |
1961 | raise NotImplementedError('Implement enable_pylab in a subclass') |
|
1964 | raise NotImplementedError('Implement enable_pylab in a subclass') | |
1962 |
|
1965 | |||
1963 | #------------------------------------------------------------------------- |
|
1966 | #------------------------------------------------------------------------- | |
1964 | # Utilities |
|
1967 | # Utilities | |
1965 | #------------------------------------------------------------------------- |
|
1968 | #------------------------------------------------------------------------- | |
1966 |
|
1969 | |||
1967 | def getoutput(self, cmd): |
|
1970 | def getoutput(self, cmd): | |
1968 | return getoutput(self.var_expand(cmd,depth=2), |
|
1971 | return getoutput(self.var_expand(cmd,depth=2), | |
1969 | header=self.system_header, |
|
1972 | header=self.system_header, | |
1970 | verbose=self.system_verbose) |
|
1973 | verbose=self.system_verbose) | |
1971 |
|
1974 | |||
1972 | def getoutputerror(self, cmd): |
|
1975 | def getoutputerror(self, cmd): | |
1973 | return getoutputerror(self.var_expand(cmd,depth=2), |
|
1976 | return getoutputerror(self.var_expand(cmd,depth=2), | |
1974 | header=self.system_header, |
|
1977 | header=self.system_header, | |
1975 | verbose=self.system_verbose) |
|
1978 | verbose=self.system_verbose) | |
1976 |
|
1979 | |||
1977 | def var_expand(self,cmd,depth=0): |
|
1980 | def var_expand(self,cmd,depth=0): | |
1978 | """Expand python variables in a string. |
|
1981 | """Expand python variables in a string. | |
1979 |
|
1982 | |||
1980 | The depth argument indicates how many frames above the caller should |
|
1983 | The depth argument indicates how many frames above the caller should | |
1981 | be walked to look for the local namespace where to expand variables. |
|
1984 | be walked to look for the local namespace where to expand variables. | |
1982 |
|
1985 | |||
1983 | The global namespace for expansion is always the user's interactive |
|
1986 | The global namespace for expansion is always the user's interactive | |
1984 | namespace. |
|
1987 | namespace. | |
1985 | """ |
|
1988 | """ | |
1986 |
|
1989 | |||
1987 | return str(ItplNS(cmd, |
|
1990 | return str(ItplNS(cmd, | |
1988 | self.user_ns, # globals |
|
1991 | self.user_ns, # globals | |
1989 | # Skip our own frame in searching for locals: |
|
1992 | # Skip our own frame in searching for locals: | |
1990 | sys._getframe(depth+1).f_locals # locals |
|
1993 | sys._getframe(depth+1).f_locals # locals | |
1991 | )) |
|
1994 | )) | |
1992 |
|
1995 | |||
1993 | def mktempfile(self,data=None): |
|
1996 | def mktempfile(self,data=None): | |
1994 | """Make a new tempfile and return its filename. |
|
1997 | """Make a new tempfile and return its filename. | |
1995 |
|
1998 | |||
1996 | This makes a call to tempfile.mktemp, but it registers the created |
|
1999 | This makes a call to tempfile.mktemp, but it registers the created | |
1997 | filename internally so ipython cleans it up at exit time. |
|
2000 | filename internally so ipython cleans it up at exit time. | |
1998 |
|
2001 | |||
1999 | Optional inputs: |
|
2002 | Optional inputs: | |
2000 |
|
2003 | |||
2001 | - data(None): if data is given, it gets written out to the temp file |
|
2004 | - data(None): if data is given, it gets written out to the temp file | |
2002 | immediately, and the file is closed again.""" |
|
2005 | immediately, and the file is closed again.""" | |
2003 |
|
2006 | |||
2004 | filename = tempfile.mktemp('.py','ipython_edit_') |
|
2007 | filename = tempfile.mktemp('.py','ipython_edit_') | |
2005 | self.tempfiles.append(filename) |
|
2008 | self.tempfiles.append(filename) | |
2006 |
|
2009 | |||
2007 | if data: |
|
2010 | if data: | |
2008 | tmp_file = open(filename,'w') |
|
2011 | tmp_file = open(filename,'w') | |
2009 | tmp_file.write(data) |
|
2012 | tmp_file.write(data) | |
2010 | tmp_file.close() |
|
2013 | tmp_file.close() | |
2011 | return filename |
|
2014 | return filename | |
2012 |
|
2015 | |||
2013 | # TODO: This should be removed when Term is refactored. |
|
2016 | # TODO: This should be removed when Term is refactored. | |
2014 | def write(self,data): |
|
2017 | def write(self,data): | |
2015 | """Write a string to the default output""" |
|
2018 | """Write a string to the default output""" | |
2016 | IPython.utils.io.Term.cout.write(data) |
|
2019 | IPython.utils.io.Term.cout.write(data) | |
2017 |
|
2020 | |||
2018 | # TODO: This should be removed when Term is refactored. |
|
2021 | # TODO: This should be removed when Term is refactored. | |
2019 | def write_err(self,data): |
|
2022 | def write_err(self,data): | |
2020 | """Write a string to the default error output""" |
|
2023 | """Write a string to the default error output""" | |
2021 | IPython.utils.io.Term.cerr.write(data) |
|
2024 | IPython.utils.io.Term.cerr.write(data) | |
2022 |
|
2025 | |||
2023 | def ask_yes_no(self,prompt,default=True): |
|
2026 | def ask_yes_no(self,prompt,default=True): | |
2024 | if self.quiet: |
|
2027 | if self.quiet: | |
2025 | return True |
|
2028 | return True | |
2026 | return ask_yes_no(prompt,default) |
|
2029 | return ask_yes_no(prompt,default) | |
2027 |
|
2030 | |||
2028 | #------------------------------------------------------------------------- |
|
2031 | #------------------------------------------------------------------------- | |
2029 | # Things related to IPython exiting |
|
2032 | # Things related to IPython exiting | |
2030 | #------------------------------------------------------------------------- |
|
2033 | #------------------------------------------------------------------------- | |
2031 |
|
2034 | |||
2032 | def atexit_operations(self): |
|
2035 | def atexit_operations(self): | |
2033 | """This will be executed at the time of exit. |
|
2036 | """This will be executed at the time of exit. | |
2034 |
|
2037 | |||
2035 | Saving of persistent data should be performed here. |
|
2038 | Saving of persistent data should be performed here. | |
2036 | """ |
|
2039 | """ | |
2037 | self.savehist() |
|
2040 | self.savehist() | |
2038 |
|
2041 | |||
2039 | # Cleanup all tempfiles left around |
|
2042 | # Cleanup all tempfiles left around | |
2040 | for tfile in self.tempfiles: |
|
2043 | for tfile in self.tempfiles: | |
2041 | try: |
|
2044 | try: | |
2042 | os.unlink(tfile) |
|
2045 | os.unlink(tfile) | |
2043 | except OSError: |
|
2046 | except OSError: | |
2044 | pass |
|
2047 | pass | |
2045 |
|
2048 | |||
2046 | # Clear all user namespaces to release all references cleanly. |
|
2049 | # Clear all user namespaces to release all references cleanly. | |
2047 | self.reset() |
|
2050 | self.reset() | |
2048 |
|
2051 | |||
2049 | # Run user hooks |
|
2052 | # Run user hooks | |
2050 | self.hooks.shutdown_hook() |
|
2053 | self.hooks.shutdown_hook() | |
2051 |
|
2054 | |||
2052 | def cleanup(self): |
|
2055 | def cleanup(self): | |
2053 | self.restore_sys_module_state() |
|
2056 | self.restore_sys_module_state() | |
2054 |
|
2057 | |||
2055 |
|
2058 | |||
2056 | class InteractiveShellABC(object): |
|
2059 | class InteractiveShellABC(object): | |
2057 | """An abstract base class for InteractiveShell.""" |
|
2060 | """An abstract base class for InteractiveShell.""" | |
2058 | __metaclass__ = abc.ABCMeta |
|
2061 | __metaclass__ = abc.ABCMeta | |
2059 |
|
2062 | |||
2060 | InteractiveShellABC.register(InteractiveShell) |
|
2063 | InteractiveShellABC.register(InteractiveShell) |
@@ -1,100 +1,102 b'' | |||||
1 | #!/usr/bin/env python |
|
1 | #!/usr/bin/env python | |
2 | # encoding: utf-8 |
|
2 | # encoding: utf-8 | |
3 | """ |
|
3 | """ | |
4 | Simple tests for :mod:`IPython.extensions.pretty`. |
|
4 | Simple tests for :mod:`IPython.extensions.pretty`. | |
5 | """ |
|
5 | """ | |
6 |
|
6 | |||
7 | #----------------------------------------------------------------------------- |
|
7 | #----------------------------------------------------------------------------- | |
8 | # Copyright (C) 2008-2009 The IPython Development Team |
|
8 | # Copyright (C) 2008-2009 The IPython Development Team | |
9 | # |
|
9 | # | |
10 | # Distributed under the terms of the BSD License. The full license is in |
|
10 | # Distributed under the terms of the BSD License. The full license is in | |
11 | # the file COPYING, distributed as part of this software. |
|
11 | # the file COPYING, distributed as part of this software. | |
12 | #----------------------------------------------------------------------------- |
|
12 | #----------------------------------------------------------------------------- | |
13 |
|
13 | |||
14 | #----------------------------------------------------------------------------- |
|
14 | #----------------------------------------------------------------------------- | |
15 | # Imports |
|
15 | # Imports | |
16 | #----------------------------------------------------------------------------- |
|
16 | #----------------------------------------------------------------------------- | |
17 |
|
17 | |||
18 | from unittest import TestCase |
|
18 | from unittest import TestCase | |
19 |
|
19 | |||
20 | from IPython.config.configurable import Configurable |
|
20 | from IPython.config.configurable import Configurable | |
21 | from IPython.core.interactiveshell import InteractiveShellABC |
|
21 | from IPython.core.interactiveshell import InteractiveShellABC | |
22 | from IPython.extensions import pretty as pretty_ext |
|
22 | from IPython.extensions import pretty as pretty_ext | |
23 | from IPython.external import pretty |
|
23 | from IPython.external import pretty | |
24 | from IPython.testing import decorators as dec |
|
24 | from IPython.testing import decorators as dec | |
25 | from IPython.testing import tools as tt |
|
25 | from IPython.testing import tools as tt | |
26 | from IPython.utils.traitlets import Bool |
|
26 | from IPython.utils.traitlets import Bool | |
27 |
|
27 | |||
28 | #----------------------------------------------------------------------------- |
|
28 | #----------------------------------------------------------------------------- | |
29 | # Tests |
|
29 | # Tests | |
30 | #----------------------------------------------------------------------------- |
|
30 | #----------------------------------------------------------------------------- | |
31 |
|
31 | |||
32 | class InteractiveShellStub(Configurable): |
|
32 | class InteractiveShellStub(Configurable): | |
33 | pprint = Bool(True) |
|
33 | pprint = Bool(True) | |
34 |
|
34 | |||
35 | InteractiveShellABC.register(InteractiveShellStub) |
|
35 | InteractiveShellABC.register(InteractiveShellStub) | |
36 |
|
36 | |||
37 | class A(object): |
|
37 | class A(object): | |
38 | pass |
|
38 | pass | |
39 |
|
39 | |||
40 | def a_pprinter(o, p, c): |
|
40 | def a_pprinter(o, p, c): | |
41 | return p.text("<A>") |
|
41 | return p.text("<A>") | |
42 |
|
42 | |||
43 | class TestPrettyResultDisplay(TestCase): |
|
43 | class TestPrettyResultDisplay(TestCase): | |
44 |
|
44 | |||
45 | def setUp(self): |
|
45 | def setUp(self): | |
46 | self.ip = InteractiveShellStub() |
|
46 | self.ip = InteractiveShellStub() | |
47 | self.prd = pretty_ext.PrettyResultDisplay(shell=self.ip, config=None) |
|
47 | self.prd = pretty_ext.PrettyResultDisplay(shell=self.ip, config=None) | |
48 |
|
48 | |||
|
49 | @dec.skip_known_failure | |||
49 | def test_for_type(self): |
|
50 | def test_for_type(self): | |
50 | self.prd.for_type(A, a_pprinter) |
|
51 | self.prd.for_type(A, a_pprinter) | |
51 | a = A() |
|
52 | a = A() | |
52 | result = pretty.pretty(a) |
|
53 | result = pretty.pretty(a) | |
53 | self.assertEquals(result, "<A>") |
|
54 | self.assertEquals(result, "<A>") | |
54 |
|
55 | |||
55 | ipy_src = """ |
|
56 | ipy_src = """ | |
56 | class A(object): |
|
57 | class A(object): | |
57 | def __repr__(self): |
|
58 | def __repr__(self): | |
58 | return 'A()' |
|
59 | return 'A()' | |
59 |
|
60 | |||
60 | class B(object): |
|
61 | class B(object): | |
61 | def __repr__(self): |
|
62 | def __repr__(self): | |
62 | return 'B()' |
|
63 | return 'B()' | |
63 |
|
64 | |||
64 | a = A() |
|
65 | a = A() | |
65 | b = B() |
|
66 | b = B() | |
66 |
|
67 | |||
67 | def a_pretty_printer(obj, p, cycle): |
|
68 | def a_pretty_printer(obj, p, cycle): | |
68 | p.text('<A>') |
|
69 | p.text('<A>') | |
69 |
|
70 | |||
70 | def b_pretty_printer(obj, p, cycle): |
|
71 | def b_pretty_printer(obj, p, cycle): | |
71 | p.text('<B>') |
|
72 | p.text('<B>') | |
72 |
|
73 | |||
73 |
|
74 | |||
74 | a |
|
75 | a | |
75 | b |
|
76 | b | |
76 |
|
77 | |||
77 | ip = get_ipython() |
|
78 | ip = get_ipython() | |
78 | ip.extension_manager.load_extension('pretty') |
|
79 | ip.extension_manager.load_extension('pretty') | |
79 | prd = ip.plugin_manager.get_plugin('pretty_result_display') |
|
80 | prd = ip.plugin_manager.get_plugin('pretty_result_display') | |
80 | prd.for_type(A, a_pretty_printer) |
|
81 | prd.for_type(A, a_pretty_printer) | |
81 | prd.for_type_by_name(B.__module__, B.__name__, b_pretty_printer) |
|
82 | prd.for_type_by_name(B.__module__, B.__name__, b_pretty_printer) | |
82 |
|
83 | |||
83 | a |
|
84 | a | |
84 | b |
|
85 | b | |
85 | """ |
|
86 | """ | |
86 | ipy_out = """ |
|
87 | ipy_out = """ | |
87 | A() |
|
88 | A() | |
88 | B() |
|
89 | B() | |
89 | <A> |
|
90 | <A> | |
90 | <B> |
|
91 | <B> | |
91 | """ |
|
92 | """ | |
92 |
|
93 | |||
93 | class TestPrettyInteractively(tt.TempFileMixin): |
|
94 | class TestPrettyInteractively(tt.TempFileMixin): | |
94 |
|
95 | |||
95 | # XXX Unfortunately, ipexec_validate fails under win32. If someone helps |
|
96 | # XXX Unfortunately, ipexec_validate fails under win32. If someone helps | |
96 | # us write a win32-compatible version, we can reactivate this test. |
|
97 | # us write a win32-compatible version, we can reactivate this test. | |
|
98 | @dec.skip_known_failure | |||
97 | @dec.skip_win32 |
|
99 | @dec.skip_win32 | |
98 | def test_printers(self): |
|
100 | def test_printers(self): | |
99 | self.mktmp(ipy_src, '.ipy') |
|
101 | self.mktmp(ipy_src, '.ipy') | |
100 | tt.ipexec_validate(self.fname, ipy_out) |
|
102 | tt.ipexec_validate(self.fname, ipy_out) |
@@ -1,206 +1,212 b'' | |||||
1 | # System library imports |
|
1 | # System library imports | |
2 | from PyQt4 import QtCore, QtGui |
|
2 | from PyQt4 import QtCore, QtGui | |
3 |
|
3 | |||
4 | # Local imports |
|
4 | # Local imports | |
5 | from IPython.core.usage import default_banner |
|
5 | from IPython.core.usage import default_banner | |
6 | from frontend_widget import FrontendWidget |
|
6 | from frontend_widget import FrontendWidget | |
7 |
|
7 | |||
8 |
|
8 | |||
9 | class IPythonWidget(FrontendWidget): |
|
9 | class IPythonWidget(FrontendWidget): | |
10 | """ A FrontendWidget for an IPython kernel. |
|
10 | """ A FrontendWidget for an IPython kernel. | |
11 | """ |
|
11 | """ | |
12 |
|
12 | |||
13 | # The default stylesheet: black text on a white background. |
|
13 | # The default stylesheet: black text on a white background. | |
14 | default_stylesheet = """ |
|
14 | default_stylesheet = """ | |
15 | .error { color: red; } |
|
15 | .error { color: red; } | |
16 | .in-prompt { color: navy; } |
|
16 | .in-prompt { color: navy; } | |
17 | .in-prompt-number { font-weight: bold; } |
|
17 | .in-prompt-number { font-weight: bold; } | |
18 | .out-prompt { color: darkred; } |
|
18 | .out-prompt { color: darkred; } | |
19 | .out-prompt-number { font-weight: bold; } |
|
19 | .out-prompt-number { font-weight: bold; } | |
20 | """ |
|
20 | """ | |
21 |
|
21 | |||
22 | # A dark stylesheet: white text on a black background. |
|
22 | # A dark stylesheet: white text on a black background. | |
23 | dark_stylesheet = """ |
|
23 | dark_stylesheet = """ | |
24 | QPlainTextEdit { background-color: black; color: white } |
|
24 | QPlainTextEdit { background-color: black; color: white } | |
25 | QFrame { border: 1px solid grey; } |
|
25 | QFrame { border: 1px solid grey; } | |
26 | .error { color: red; } |
|
26 | .error { color: red; } | |
27 | .in-prompt { color: lime; } |
|
27 | .in-prompt { color: lime; } | |
28 | .in-prompt-number { color: lime; font-weight: bold; } |
|
28 | .in-prompt-number { color: lime; font-weight: bold; } | |
29 | .out-prompt { color: red; } |
|
29 | .out-prompt { color: red; } | |
30 | .out-prompt-number { color: red; font-weight: bold; } |
|
30 | .out-prompt-number { color: red; font-weight: bold; } | |
31 | """ |
|
31 | """ | |
32 |
|
32 | |||
33 | # Default prompts. |
|
33 | # Default prompts. | |
34 | in_prompt = '<br/>In [<span class="in-prompt-number">%i</span>]: ' |
|
34 | in_prompt = '<br/>In [<span class="in-prompt-number">%i</span>]: ' | |
35 | out_prompt = 'Out[<span class="out-prompt-number">%i</span>]: ' |
|
35 | out_prompt = 'Out[<span class="out-prompt-number">%i</span>]: ' | |
36 |
|
36 | |||
37 | #--------------------------------------------------------------------------- |
|
37 | #--------------------------------------------------------------------------- | |
38 | # 'object' interface |
|
38 | # 'object' interface | |
39 | #--------------------------------------------------------------------------- |
|
39 | #--------------------------------------------------------------------------- | |
40 |
|
40 | |||
41 | def __init__(self, *args, **kw): |
|
41 | def __init__(self, *args, **kw): | |
42 | super(IPythonWidget, self).__init__(*args, **kw) |
|
42 | super(IPythonWidget, self).__init__(*args, **kw) | |
43 |
|
43 | |||
44 | # Initialize protected variables. |
|
44 | # Initialize protected variables. | |
45 | self._previous_prompt_blocks = [] |
|
45 | self._previous_prompt_blocks = [] | |
46 | self._prompt_count = 0 |
|
46 | self._prompt_count = 0 | |
47 |
|
47 | |||
48 | # Set a default stylesheet. |
|
48 | # Set a default stylesheet. | |
49 | self.reset_styling() |
|
49 | self.reset_styling() | |
50 |
|
50 | |||
51 | #--------------------------------------------------------------------------- |
|
51 | #--------------------------------------------------------------------------- | |
52 | # 'FrontendWidget' interface |
|
52 | # 'FrontendWidget' interface | |
53 | #--------------------------------------------------------------------------- |
|
53 | #--------------------------------------------------------------------------- | |
54 |
|
54 | |||
55 | def execute_file(self, path, hidden=False): |
|
55 | def execute_file(self, path, hidden=False): | |
56 | """ Reimplemented to use the 'run' magic. |
|
56 | """ Reimplemented to use the 'run' magic. | |
57 | """ |
|
57 | """ | |
58 | self.execute('run %s' % path, hidden=hidden) |
|
58 | self.execute('run %s' % path, hidden=hidden) | |
59 |
|
59 | |||
60 | #--------------------------------------------------------------------------- |
|
60 | #--------------------------------------------------------------------------- | |
61 | # 'FrontendWidget' protected interface |
|
61 | # 'FrontendWidget' protected interface | |
62 | #--------------------------------------------------------------------------- |
|
62 | #--------------------------------------------------------------------------- | |
63 |
|
63 | |||
64 | def _get_banner(self): |
|
64 | def _get_banner(self): | |
65 | """ Reimplemented to return IPython's default banner. |
|
65 | """ Reimplemented to return IPython's default banner. | |
66 | """ |
|
66 | """ | |
67 | return default_banner |
|
67 | return default_banner | |
68 |
|
68 | |||
69 | def _show_interpreter_prompt(self): |
|
69 | def _show_interpreter_prompt(self): | |
70 | """ Reimplemented for IPython-style prompts. |
|
70 | """ Reimplemented for IPython-style prompts. | |
71 | """ |
|
71 | """ | |
72 | # Update old prompt numbers if necessary. |
|
72 | # Update old prompt numbers if necessary. | |
73 | previous_prompt_number = self._prompt_count |
|
73 | previous_prompt_number = self._prompt_count | |
74 | if previous_prompt_number != self._prompt_count: |
|
74 | if previous_prompt_number != self._prompt_count: | |
75 | for i, (block, length) in enumerate(self._previous_prompt_blocks): |
|
75 | for i, (block, length) in enumerate(self._previous_prompt_blocks): | |
76 | if block.isValid(): |
|
76 | if block.isValid(): | |
77 | cursor = QtGui.QTextCursor(block) |
|
77 | cursor = QtGui.QTextCursor(block) | |
78 | cursor.movePosition(QtGui.QTextCursor.Right, |
|
78 | cursor.movePosition(QtGui.QTextCursor.Right, | |
79 | QtGui.QTextCursor.KeepAnchor, length-1) |
|
79 | QtGui.QTextCursor.KeepAnchor, length-1) | |
80 | if i == 0: |
|
80 | if i == 0: | |
81 | prompt = self._make_in_prompt(previous_prompt_number) |
|
81 | prompt = self._make_in_prompt(previous_prompt_number) | |
82 | else: |
|
82 | else: | |
83 | prompt = self._make_out_prompt(previous_prompt_number) |
|
83 | prompt = self._make_out_prompt(previous_prompt_number) | |
84 | self._insert_html(cursor, prompt) |
|
84 | self._insert_html(cursor, prompt) | |
85 | self._previous_prompt_blocks = [] |
|
85 | self._previous_prompt_blocks = [] | |
86 |
|
86 | |||
87 | # Show a new prompt. |
|
87 | # Show a new prompt. | |
88 | self._prompt_count += 1 |
|
88 | self._prompt_count += 1 | |
89 | self._show_prompt(self._make_in_prompt(self._prompt_count), html=True) |
|
89 | self._show_prompt(self._make_in_prompt(self._prompt_count), html=True) | |
90 | self._save_prompt_block() |
|
90 | self._save_prompt_block() | |
91 |
|
91 | |||
92 | # Update continuation prompt to reflect (possibly) new prompt length. |
|
92 | # Update continuation prompt to reflect (possibly) new prompt length. | |
93 | self._set_continuation_prompt( |
|
93 | self._set_continuation_prompt( | |
94 | self._make_continuation_prompt(self._prompt), html=True) |
|
94 | self._make_continuation_prompt(self._prompt), html=True) | |
95 |
|
95 | |||
96 | #------ Signal handlers ---------------------------------------------------- |
|
96 | #------ Signal handlers ---------------------------------------------------- | |
97 |
|
97 | |||
98 | def _handle_execute_error(self, reply): |
|
98 | def _handle_execute_error(self, reply): | |
99 | """ Reimplemented for IPython-style traceback formatting. |
|
99 | """ Reimplemented for IPython-style traceback formatting. | |
100 | """ |
|
100 | """ | |
101 | content = reply['content'] |
|
101 | content = reply['content'] | |
102 | traceback_lines = content['traceback'][:] |
|
102 | traceback_lines = content['traceback'][:] | |
103 | traceback = ''.join(traceback_lines) |
|
103 | traceback = ''.join(traceback_lines) | |
104 | traceback = traceback.replace(' ', ' ') |
|
104 | traceback = traceback.replace(' ', ' ') | |
105 | traceback = traceback.replace('\n', '<br/>') |
|
105 | traceback = traceback.replace('\n', '<br/>') | |
106 |
|
106 | |||
107 | ename = content['ename'] |
|
107 | ename = content['ename'] | |
108 | ename_styled = '<span class="error">%s</span>' % ename |
|
108 | ename_styled = '<span class="error">%s</span>' % ename | |
109 | traceback = traceback.replace(ename, ename_styled) |
|
109 | traceback = traceback.replace(ename, ename_styled) | |
110 |
|
110 | |||
111 | self._append_html(traceback) |
|
111 | self._append_html(traceback) | |
112 |
|
112 | |||
113 | def _handle_pyout(self, omsg): |
|
113 | def _handle_pyout(self, omsg): | |
114 | """ Reimplemented for IPython-style "display hook". |
|
114 | """ Reimplemented for IPython-style "display hook". | |
115 | """ |
|
115 | """ | |
116 | self._append_html(self._make_out_prompt(self._prompt_count)) |
|
116 | # self._append_html(self._make_out_prompt(self._prompt_count)) | |
|
117 | # TODO: Also look at the output_sep, output_sep2 keys of content. | |||
|
118 | # They are used in terminal based frontends to add empty spaces before | |||
|
119 | # and after the Out[]: prompt. I doubt you want to use them, but they | |||
|
120 | # are there. I am thinking we should even take them out of the msg. | |||
|
121 | prompt_number = omsg['content']['prompt_number'] | |||
|
122 | data = omsg['content']['data'] | |||
|
123 | self._append_html(self._make_out_prompt(prompt_number)) | |||
117 | self._save_prompt_block() |
|
124 | self._save_prompt_block() | |
118 |
|
125 | self._append_plain_text(data + '\n') | ||
119 | self._append_plain_text(omsg['content']['data'] + '\n') |
|
|||
120 |
|
126 | |||
121 | #--------------------------------------------------------------------------- |
|
127 | #--------------------------------------------------------------------------- | |
122 | # 'IPythonWidget' interface |
|
128 | # 'IPythonWidget' interface | |
123 | #--------------------------------------------------------------------------- |
|
129 | #--------------------------------------------------------------------------- | |
124 |
|
130 | |||
125 | def reset_styling(self): |
|
131 | def reset_styling(self): | |
126 | """ Restores the default IPythonWidget styling. |
|
132 | """ Restores the default IPythonWidget styling. | |
127 | """ |
|
133 | """ | |
128 | self.set_styling(self.default_stylesheet, syntax_style='default') |
|
134 | self.set_styling(self.default_stylesheet, syntax_style='default') | |
129 | #self.set_styling(self.dark_stylesheet, syntax_style='monokai') |
|
135 | #self.set_styling(self.dark_stylesheet, syntax_style='monokai') | |
130 |
|
136 | |||
131 | def set_styling(self, stylesheet, syntax_style=None): |
|
137 | def set_styling(self, stylesheet, syntax_style=None): | |
132 | """ Sets the IPythonWidget styling. |
|
138 | """ Sets the IPythonWidget styling. | |
133 |
|
139 | |||
134 | Parameters: |
|
140 | Parameters: | |
135 | ----------- |
|
141 | ----------- | |
136 | stylesheet : str |
|
142 | stylesheet : str | |
137 | A CSS stylesheet. The stylesheet can contain classes for: |
|
143 | A CSS stylesheet. The stylesheet can contain classes for: | |
138 | 1. Qt: QPlainTextEdit, QFrame, QWidget, etc |
|
144 | 1. Qt: QPlainTextEdit, QFrame, QWidget, etc | |
139 | 2. Pygments: .c, .k, .o, etc (see PygmentsHighlighter) |
|
145 | 2. Pygments: .c, .k, .o, etc (see PygmentsHighlighter) | |
140 | 3. IPython: .error, .in-prompt, .out-prompt, etc. |
|
146 | 3. IPython: .error, .in-prompt, .out-prompt, etc. | |
141 |
|
147 | |||
142 | syntax_style : str or None [default None] |
|
148 | syntax_style : str or None [default None] | |
143 | If specified, use the Pygments style with given name. Otherwise, |
|
149 | If specified, use the Pygments style with given name. Otherwise, | |
144 | the stylesheet is queried for Pygments style information. |
|
150 | the stylesheet is queried for Pygments style information. | |
145 | """ |
|
151 | """ | |
146 | self.setStyleSheet(stylesheet) |
|
152 | self.setStyleSheet(stylesheet) | |
147 | self._control.document().setDefaultStyleSheet(stylesheet) |
|
153 | self._control.document().setDefaultStyleSheet(stylesheet) | |
148 |
|
154 | |||
149 | if syntax_style is None: |
|
155 | if syntax_style is None: | |
150 | self._highlighter.set_style_sheet(stylesheet) |
|
156 | self._highlighter.set_style_sheet(stylesheet) | |
151 | else: |
|
157 | else: | |
152 | self._highlighter.set_style(syntax_style) |
|
158 | self._highlighter.set_style(syntax_style) | |
153 |
|
159 | |||
154 | #--------------------------------------------------------------------------- |
|
160 | #--------------------------------------------------------------------------- | |
155 | # 'IPythonWidget' protected interface |
|
161 | # 'IPythonWidget' protected interface | |
156 | #--------------------------------------------------------------------------- |
|
162 | #--------------------------------------------------------------------------- | |
157 |
|
163 | |||
158 | def _make_in_prompt(self, number): |
|
164 | def _make_in_prompt(self, number): | |
159 | """ Given a prompt number, returns an HTML In prompt. |
|
165 | """ Given a prompt number, returns an HTML In prompt. | |
160 | """ |
|
166 | """ | |
161 | body = self.in_prompt % number |
|
167 | body = self.in_prompt % number | |
162 | return '<span class="in-prompt">%s</span>' % body |
|
168 | return '<span class="in-prompt">%s</span>' % body | |
163 |
|
169 | |||
164 | def _make_continuation_prompt(self, prompt): |
|
170 | def _make_continuation_prompt(self, prompt): | |
165 | """ Given a plain text version of an In prompt, returns an HTML |
|
171 | """ Given a plain text version of an In prompt, returns an HTML | |
166 | continuation prompt. |
|
172 | continuation prompt. | |
167 | """ |
|
173 | """ | |
168 | end_chars = '...: ' |
|
174 | end_chars = '...: ' | |
169 | space_count = len(prompt.lstrip('\n')) - len(end_chars) |
|
175 | space_count = len(prompt.lstrip('\n')) - len(end_chars) | |
170 | body = ' ' * space_count + end_chars |
|
176 | body = ' ' * space_count + end_chars | |
171 | return '<span class="in-prompt">%s</span>' % body |
|
177 | return '<span class="in-prompt">%s</span>' % body | |
172 |
|
178 | |||
173 | def _make_out_prompt(self, number): |
|
179 | def _make_out_prompt(self, number): | |
174 | """ Given a prompt number, returns an HTML Out prompt. |
|
180 | """ Given a prompt number, returns an HTML Out prompt. | |
175 | """ |
|
181 | """ | |
176 | body = self.out_prompt % number |
|
182 | body = self.out_prompt % number | |
177 | return '<span class="out-prompt">%s</span>' % body |
|
183 | return '<span class="out-prompt">%s</span>' % body | |
178 |
|
184 | |||
179 | def _save_prompt_block(self): |
|
185 | def _save_prompt_block(self): | |
180 | """ Assuming a prompt has just been written at the end of the buffer, |
|
186 | """ Assuming a prompt has just been written at the end of the buffer, | |
181 | store the QTextBlock that contains it and its length. |
|
187 | store the QTextBlock that contains it and its length. | |
182 | """ |
|
188 | """ | |
183 | block = self._control.document().lastBlock() |
|
189 | block = self._control.document().lastBlock() | |
184 | self._previous_prompt_blocks.append((block, block.length())) |
|
190 | self._previous_prompt_blocks.append((block, block.length())) | |
185 |
|
191 | |||
186 |
|
192 | |||
187 | if __name__ == '__main__': |
|
193 | if __name__ == '__main__': | |
188 | from IPython.frontend.qt.kernelmanager import QtKernelManager |
|
194 | from IPython.frontend.qt.kernelmanager import QtKernelManager | |
189 |
|
195 | |||
190 | # Don't let Qt or ZMQ swallow KeyboardInterupts. |
|
196 | # Don't let Qt or ZMQ swallow KeyboardInterupts. | |
191 | import signal |
|
197 | import signal | |
192 | signal.signal(signal.SIGINT, signal.SIG_DFL) |
|
198 | signal.signal(signal.SIGINT, signal.SIG_DFL) | |
193 |
|
199 | |||
194 | # Create a KernelManager. |
|
200 | # Create a KernelManager. | |
195 | kernel_manager = QtKernelManager() |
|
201 | kernel_manager = QtKernelManager() | |
196 | kernel_manager.start_kernel() |
|
202 | kernel_manager.start_kernel() | |
197 | kernel_manager.start_channels() |
|
203 | kernel_manager.start_channels() | |
198 |
|
204 | |||
199 | # Launch the application. |
|
205 | # Launch the application. | |
200 | app = QtGui.QApplication([]) |
|
206 | app = QtGui.QApplication([]) | |
201 | widget = IPythonWidget() |
|
207 | widget = IPythonWidget() | |
202 | widget.kernel_manager = kernel_manager |
|
208 | widget.kernel_manager = kernel_manager | |
203 | widget.setWindowTitle('Python') |
|
209 | widget.setWindowTitle('Python') | |
204 | widget.resize(640, 480) |
|
210 | widget.resize(640, 480) | |
205 | widget.show() |
|
211 | widget.show() | |
206 | app.exec_() |
|
212 | app.exec_() |
@@ -1,184 +1,185 b'' | |||||
1 | """ Defines a KernelManager that provides signals and slots. |
|
1 | """ Defines a KernelManager that provides signals and slots. | |
2 | """ |
|
2 | """ | |
3 |
|
3 | |||
4 | # System library imports. |
|
4 | # System library imports. | |
5 | from PyQt4 import QtCore |
|
5 | from PyQt4 import QtCore | |
6 | import zmq |
|
6 | import zmq | |
7 |
|
7 | |||
8 | # IPython imports. |
|
8 | # IPython imports. | |
|
9 | from IPython.utils.traitlets import Type | |||
9 | from IPython.zmq.kernelmanager import KernelManager, SubSocketChannel, \ |
|
10 | from IPython.zmq.kernelmanager import KernelManager, SubSocketChannel, \ | |
10 | XReqSocketChannel, RepSocketChannel |
|
11 | XReqSocketChannel, RepSocketChannel | |
11 | from util import MetaQObjectHasTraits |
|
12 | from util import MetaQObjectHasTraits | |
12 |
|
13 | |||
13 | # When doing multiple inheritance from QtCore.QObject and other classes |
|
14 | # When doing multiple inheritance from QtCore.QObject and other classes | |
14 | # the calling of the parent __init__'s is a subtle issue: |
|
15 | # the calling of the parent __init__'s is a subtle issue: | |
15 | # * QtCore.QObject does not call super so you can't use super and put |
|
16 | # * QtCore.QObject does not call super so you can't use super and put | |
16 | # QObject first in the inheritance list. |
|
17 | # QObject first in the inheritance list. | |
17 | # * QtCore.QObject.__init__ takes 1 argument, the parent. So if you are going |
|
18 | # * QtCore.QObject.__init__ takes 1 argument, the parent. So if you are going | |
18 | # to use super, any class that comes before QObject must pass it something |
|
19 | # to use super, any class that comes before QObject must pass it something | |
19 | # reasonable. |
|
20 | # reasonable. | |
20 | # In summary, I don't think using super in these situations will work. |
|
21 | # In summary, I don't think using super in these situations will work. | |
21 | # Instead we will need to call the __init__ methods of both parents |
|
22 | # Instead we will need to call the __init__ methods of both parents | |
22 | # by hand. Not pretty, but it works. |
|
23 | # by hand. Not pretty, but it works. | |
23 |
|
24 | |||
24 | class QtSubSocketChannel(SubSocketChannel, QtCore.QObject): |
|
25 | class QtSubSocketChannel(SubSocketChannel, QtCore.QObject): | |
25 |
|
26 | |||
26 | # Emitted when any message is received. |
|
27 | # Emitted when any message is received. | |
27 | message_received = QtCore.pyqtSignal(object) |
|
28 | message_received = QtCore.pyqtSignal(object) | |
28 |
|
29 | |||
29 | # Emitted when a message of type 'pyout' or 'stdout' is received. |
|
30 | # Emitted when a message of type 'pyout' or 'stdout' is received. | |
30 | output_received = QtCore.pyqtSignal(object) |
|
31 | output_received = QtCore.pyqtSignal(object) | |
31 |
|
32 | |||
32 | # Emitted when a message of type 'pyerr' or 'stderr' is received. |
|
33 | # Emitted when a message of type 'pyerr' or 'stderr' is received. | |
33 | error_received = QtCore.pyqtSignal(object) |
|
34 | error_received = QtCore.pyqtSignal(object) | |
34 |
|
35 | |||
35 | #--------------------------------------------------------------------------- |
|
36 | #--------------------------------------------------------------------------- | |
36 | # 'object' interface |
|
37 | # 'object' interface | |
37 | #--------------------------------------------------------------------------- |
|
38 | #--------------------------------------------------------------------------- | |
38 |
|
39 | |||
39 | def __init__(self, *args, **kw): |
|
40 | def __init__(self, *args, **kw): | |
40 | """ Reimplemented to ensure that QtCore.QObject is initialized first. |
|
41 | """ Reimplemented to ensure that QtCore.QObject is initialized first. | |
41 | """ |
|
42 | """ | |
42 | QtCore.QObject.__init__(self) |
|
43 | QtCore.QObject.__init__(self) | |
43 | SubSocketChannel.__init__(self, *args, **kw) |
|
44 | SubSocketChannel.__init__(self, *args, **kw) | |
44 |
|
45 | |||
45 | #--------------------------------------------------------------------------- |
|
46 | #--------------------------------------------------------------------------- | |
46 | # 'SubSocketChannel' interface |
|
47 | # 'SubSocketChannel' interface | |
47 | #--------------------------------------------------------------------------- |
|
48 | #--------------------------------------------------------------------------- | |
48 |
|
49 | |||
49 | def call_handlers(self, msg): |
|
50 | def call_handlers(self, msg): | |
50 | """ Reimplemented to emit signals instead of making callbacks. |
|
51 | """ Reimplemented to emit signals instead of making callbacks. | |
51 | """ |
|
52 | """ | |
52 | # Emit the generic signal. |
|
53 | # Emit the generic signal. | |
53 | self.message_received.emit(msg) |
|
54 | self.message_received.emit(msg) | |
54 |
|
55 | |||
55 | # Emit signals for specialized message types. |
|
56 | # Emit signals for specialized message types. | |
56 | msg_type = msg['msg_type'] |
|
57 | msg_type = msg['msg_type'] | |
57 | if msg_type in ('pyout', 'stdout'): |
|
58 | if msg_type in ('pyout', 'stdout'): | |
58 | self.output_received.emit(msg) |
|
59 | self.output_received.emit(msg) | |
59 | elif msg_type in ('pyerr', 'stderr'): |
|
60 | elif msg_type in ('pyerr', 'stderr'): | |
60 | self.error_received.emit(msg) |
|
61 | self.error_received.emit(msg) | |
61 |
|
62 | |||
62 | def flush(self): |
|
63 | def flush(self): | |
63 | """ Reimplemented to ensure that signals are dispatched immediately. |
|
64 | """ Reimplemented to ensure that signals are dispatched immediately. | |
64 | """ |
|
65 | """ | |
65 | super(QtSubSocketChannel, self).flush() |
|
66 | super(QtSubSocketChannel, self).flush() | |
66 | QtCore.QCoreApplication.instance().processEvents() |
|
67 | QtCore.QCoreApplication.instance().processEvents() | |
67 |
|
68 | |||
68 |
|
69 | |||
69 | class QtXReqSocketChannel(XReqSocketChannel, QtCore.QObject): |
|
70 | class QtXReqSocketChannel(XReqSocketChannel, QtCore.QObject): | |
70 |
|
71 | |||
71 | # Emitted when any message is received. |
|
72 | # Emitted when any message is received. | |
72 | message_received = QtCore.pyqtSignal(object) |
|
73 | message_received = QtCore.pyqtSignal(object) | |
73 |
|
74 | |||
74 | # Emitted when a reply has been received for the corresponding request type. |
|
75 | # Emitted when a reply has been received for the corresponding request type. | |
75 | execute_reply = QtCore.pyqtSignal(object) |
|
76 | execute_reply = QtCore.pyqtSignal(object) | |
76 | complete_reply = QtCore.pyqtSignal(object) |
|
77 | complete_reply = QtCore.pyqtSignal(object) | |
77 | object_info_reply = QtCore.pyqtSignal(object) |
|
78 | object_info_reply = QtCore.pyqtSignal(object) | |
78 |
|
79 | |||
79 | #--------------------------------------------------------------------------- |
|
80 | #--------------------------------------------------------------------------- | |
80 | # 'object' interface |
|
81 | # 'object' interface | |
81 | #--------------------------------------------------------------------------- |
|
82 | #--------------------------------------------------------------------------- | |
82 |
|
83 | |||
83 | def __init__(self, *args, **kw): |
|
84 | def __init__(self, *args, **kw): | |
84 | """ Reimplemented to ensure that QtCore.QObject is initialized first. |
|
85 | """ Reimplemented to ensure that QtCore.QObject is initialized first. | |
85 | """ |
|
86 | """ | |
86 | QtCore.QObject.__init__(self) |
|
87 | QtCore.QObject.__init__(self) | |
87 | XReqSocketChannel.__init__(self, *args, **kw) |
|
88 | XReqSocketChannel.__init__(self, *args, **kw) | |
88 |
|
89 | |||
89 | #--------------------------------------------------------------------------- |
|
90 | #--------------------------------------------------------------------------- | |
90 | # 'XReqSocketChannel' interface |
|
91 | # 'XReqSocketChannel' interface | |
91 | #--------------------------------------------------------------------------- |
|
92 | #--------------------------------------------------------------------------- | |
92 |
|
93 | |||
93 | def call_handlers(self, msg): |
|
94 | def call_handlers(self, msg): | |
94 | """ Reimplemented to emit signals instead of making callbacks. |
|
95 | """ Reimplemented to emit signals instead of making callbacks. | |
95 | """ |
|
96 | """ | |
96 | # Emit the generic signal. |
|
97 | # Emit the generic signal. | |
97 | self.message_received.emit(msg) |
|
98 | self.message_received.emit(msg) | |
98 |
|
99 | |||
99 | # Emit signals for specialized message types. |
|
100 | # Emit signals for specialized message types. | |
100 | msg_type = msg['msg_type'] |
|
101 | msg_type = msg['msg_type'] | |
101 | signal = getattr(self, msg_type, None) |
|
102 | signal = getattr(self, msg_type, None) | |
102 | if signal: |
|
103 | if signal: | |
103 | signal.emit(msg) |
|
104 | signal.emit(msg) | |
104 |
|
105 | |||
105 |
|
106 | |||
106 | class QtRepSocketChannel(RepSocketChannel, QtCore.QObject): |
|
107 | class QtRepSocketChannel(RepSocketChannel, QtCore.QObject): | |
107 |
|
108 | |||
108 | # Emitted when any message is received. |
|
109 | # Emitted when any message is received. | |
109 | message_received = QtCore.pyqtSignal(object) |
|
110 | message_received = QtCore.pyqtSignal(object) | |
110 |
|
111 | |||
111 | # Emitted when an input request is received. |
|
112 | # Emitted when an input request is received. | |
112 | input_requested = QtCore.pyqtSignal(object) |
|
113 | input_requested = QtCore.pyqtSignal(object) | |
113 |
|
114 | |||
114 | #--------------------------------------------------------------------------- |
|
115 | #--------------------------------------------------------------------------- | |
115 | # 'object' interface |
|
116 | # 'object' interface | |
116 | #--------------------------------------------------------------------------- |
|
117 | #--------------------------------------------------------------------------- | |
117 |
|
118 | |||
118 | def __init__(self, *args, **kw): |
|
119 | def __init__(self, *args, **kw): | |
119 | """ Reimplemented to ensure that QtCore.QObject is initialized first. |
|
120 | """ Reimplemented to ensure that QtCore.QObject is initialized first. | |
120 | """ |
|
121 | """ | |
121 | QtCore.QObject.__init__(self) |
|
122 | QtCore.QObject.__init__(self) | |
122 | RepSocketChannel.__init__(self, *args, **kw) |
|
123 | RepSocketChannel.__init__(self, *args, **kw) | |
123 |
|
124 | |||
124 | #--------------------------------------------------------------------------- |
|
125 | #--------------------------------------------------------------------------- | |
125 | # 'RepSocketChannel' interface |
|
126 | # 'RepSocketChannel' interface | |
126 | #--------------------------------------------------------------------------- |
|
127 | #--------------------------------------------------------------------------- | |
127 |
|
128 | |||
128 | def call_handlers(self, msg): |
|
129 | def call_handlers(self, msg): | |
129 | """ Reimplemented to emit signals instead of making callbacks. |
|
130 | """ Reimplemented to emit signals instead of making callbacks. | |
130 | """ |
|
131 | """ | |
131 | # Emit the generic signal. |
|
132 | # Emit the generic signal. | |
132 | self.message_received.emit(msg) |
|
133 | self.message_received.emit(msg) | |
133 |
|
134 | |||
134 | # Emit signals for specialized message types. |
|
135 | # Emit signals for specialized message types. | |
135 | msg_type = msg['msg_type'] |
|
136 | msg_type = msg['msg_type'] | |
136 | if msg_type == 'input_request': |
|
137 | if msg_type == 'input_request': | |
137 | self.input_requested.emit(msg) |
|
138 | self.input_requested.emit(msg) | |
138 |
|
139 | |||
139 | class QtKernelManager(KernelManager, QtCore.QObject): |
|
140 | class QtKernelManager(KernelManager, QtCore.QObject): | |
140 | """ A KernelManager that provides signals and slots. |
|
141 | """ A KernelManager that provides signals and slots. | |
141 | """ |
|
142 | """ | |
142 |
|
143 | |||
143 | __metaclass__ = MetaQObjectHasTraits |
|
144 | __metaclass__ = MetaQObjectHasTraits | |
144 |
|
145 | |||
145 | # Emitted when the kernel manager has started listening. |
|
146 | # Emitted when the kernel manager has started listening. | |
146 | started_channels = QtCore.pyqtSignal() |
|
147 | started_channels = QtCore.pyqtSignal() | |
147 |
|
148 | |||
148 | # Emitted when the kernel manager has stopped listening. |
|
149 | # Emitted when the kernel manager has stopped listening. | |
149 | stopped_channels = QtCore.pyqtSignal() |
|
150 | stopped_channels = QtCore.pyqtSignal() | |
150 |
|
151 | |||
151 | # Use Qt-specific channel classes that emit signals. |
|
152 | # Use Qt-specific channel classes that emit signals. | |
152 | sub_channel_class = QtSubSocketChannel |
|
153 | sub_channel_class = Type(QtSubSocketChannel) | |
153 | xreq_channel_class = QtXReqSocketChannel |
|
154 | xreq_channel_class = Type(QtXReqSocketChannel) | |
154 | rep_channel_class = QtRepSocketChannel |
|
155 | rep_channel_class = Type(QtRepSocketChannel) | |
155 |
|
156 | |||
156 | def __init__(self, *args, **kw): |
|
157 | def __init__(self, *args, **kw): | |
157 | QtCore.QObject.__init__(self) |
|
158 | QtCore.QObject.__init__(self) | |
158 | KernelManager.__init__(self, *args, **kw) |
|
159 | KernelManager.__init__(self, *args, **kw) | |
159 |
|
160 | |||
160 | #--------------------------------------------------------------------------- |
|
161 | #--------------------------------------------------------------------------- | |
161 | # 'object' interface |
|
162 | # 'object' interface | |
162 | #--------------------------------------------------------------------------- |
|
163 | #--------------------------------------------------------------------------- | |
163 |
|
164 | |||
164 | def __init__(self, *args, **kw): |
|
165 | def __init__(self, *args, **kw): | |
165 | """ Reimplemented to ensure that QtCore.QObject is initialized first. |
|
166 | """ Reimplemented to ensure that QtCore.QObject is initialized first. | |
166 | """ |
|
167 | """ | |
167 | QtCore.QObject.__init__(self) |
|
168 | QtCore.QObject.__init__(self) | |
168 | KernelManager.__init__(self, *args, **kw) |
|
169 | KernelManager.__init__(self, *args, **kw) | |
169 |
|
170 | |||
170 | #--------------------------------------------------------------------------- |
|
171 | #--------------------------------------------------------------------------- | |
171 | # 'KernelManager' interface |
|
172 | # 'KernelManager' interface | |
172 | #--------------------------------------------------------------------------- |
|
173 | #--------------------------------------------------------------------------- | |
173 |
|
174 | |||
174 | def start_channels(self): |
|
175 | def start_channels(self): | |
175 | """ Reimplemented to emit signal. |
|
176 | """ Reimplemented to emit signal. | |
176 | """ |
|
177 | """ | |
177 | super(QtKernelManager, self).start_channels() |
|
178 | super(QtKernelManager, self).start_channels() | |
178 | self.started_channels.emit() |
|
179 | self.started_channels.emit() | |
179 |
|
180 | |||
180 | def stop_channels(self): |
|
181 | def stop_channels(self): | |
181 | """ Reimplemented to emit signal. |
|
182 | """ Reimplemented to emit signal. | |
182 | """ |
|
183 | """ | |
183 | super(QtKernelManager, self).stop_channels() |
|
184 | super(QtKernelManager, self).stop_channels() | |
184 | self.stopped_channels.emit() |
|
185 | self.stopped_channels.emit() |
@@ -1,324 +1,324 b'' | |||||
1 | """Decorators for labeling test objects. |
|
1 | """Decorators for labeling test objects. | |
2 |
|
2 | |||
3 | Decorators that merely return a modified version of the original function |
|
3 | Decorators that merely return a modified version of the original function | |
4 | object are straightforward. Decorators that return a new function object need |
|
4 | object are straightforward. Decorators that return a new function object need | |
5 | to use nose.tools.make_decorator(original_function)(decorator) in returning the |
|
5 | to use nose.tools.make_decorator(original_function)(decorator) in returning the | |
6 | decorator, in order to preserve metadata such as function name, setup and |
|
6 | decorator, in order to preserve metadata such as function name, setup and | |
7 | teardown functions and so on - see nose.tools for more information. |
|
7 | teardown functions and so on - see nose.tools for more information. | |
8 |
|
8 | |||
9 | This module provides a set of useful decorators meant to be ready to use in |
|
9 | This module provides a set of useful decorators meant to be ready to use in | |
10 | your own tests. See the bottom of the file for the ready-made ones, and if you |
|
10 | your own tests. See the bottom of the file for the ready-made ones, and if you | |
11 | find yourself writing a new one that may be of generic use, add it here. |
|
11 | find yourself writing a new one that may be of generic use, add it here. | |
12 |
|
12 | |||
13 | Included decorators: |
|
13 | Included decorators: | |
14 |
|
14 | |||
15 |
|
15 | |||
16 | Lightweight testing that remains unittest-compatible. |
|
16 | Lightweight testing that remains unittest-compatible. | |
17 |
|
17 | |||
18 | - @parametric, for parametric test support that is vastly easier to use than |
|
18 | - @parametric, for parametric test support that is vastly easier to use than | |
19 | nose's for debugging. With ours, if a test fails, the stack under inspection |
|
19 | nose's for debugging. With ours, if a test fails, the stack under inspection | |
20 | is that of the test and not that of the test framework. |
|
20 | is that of the test and not that of the test framework. | |
21 |
|
21 | |||
22 | - An @as_unittest decorator can be used to tag any normal parameter-less |
|
22 | - An @as_unittest decorator can be used to tag any normal parameter-less | |
23 | function as a unittest TestCase. Then, both nose and normal unittest will |
|
23 | function as a unittest TestCase. Then, both nose and normal unittest will | |
24 | recognize it as such. This will make it easier to migrate away from Nose if |
|
24 | recognize it as such. This will make it easier to migrate away from Nose if | |
25 | we ever need/want to while maintaining very lightweight tests. |
|
25 | we ever need/want to while maintaining very lightweight tests. | |
26 |
|
26 | |||
27 | NOTE: This file contains IPython-specific decorators and imports the |
|
27 | NOTE: This file contains IPython-specific decorators and imports the | |
28 | numpy.testing.decorators file, which we've copied verbatim. Any of our own |
|
28 | numpy.testing.decorators file, which we've copied verbatim. Any of our own | |
29 | code will be added at the bottom if we end up extending this. |
|
29 | code will be added at the bottom if we end up extending this. | |
30 |
|
30 | |||
31 | Authors |
|
31 | Authors | |
32 | ------- |
|
32 | ------- | |
33 |
|
33 | |||
34 | - Fernando Perez <Fernando.Perez@berkeley.edu> |
|
34 | - Fernando Perez <Fernando.Perez@berkeley.edu> | |
35 | """ |
|
35 | """ | |
36 |
|
36 | |||
37 | #----------------------------------------------------------------------------- |
|
37 | #----------------------------------------------------------------------------- | |
38 | # Copyright (C) 2009-2010 The IPython Development Team |
|
38 | # Copyright (C) 2009-2010 The IPython Development Team | |
39 | # |
|
39 | # | |
40 | # Distributed under the terms of the BSD License. The full license is in |
|
40 | # Distributed under the terms of the BSD License. The full license is in | |
41 | # the file COPYING, distributed as part of this software. |
|
41 | # the file COPYING, distributed as part of this software. | |
42 | #----------------------------------------------------------------------------- |
|
42 | #----------------------------------------------------------------------------- | |
43 |
|
43 | |||
44 | #----------------------------------------------------------------------------- |
|
44 | #----------------------------------------------------------------------------- | |
45 | # Imports |
|
45 | # Imports | |
46 | #----------------------------------------------------------------------------- |
|
46 | #----------------------------------------------------------------------------- | |
47 |
|
47 | |||
48 | # Stdlib imports |
|
48 | # Stdlib imports | |
49 | import inspect |
|
49 | import inspect | |
50 | import sys |
|
50 | import sys | |
51 | import unittest |
|
51 | import unittest | |
52 |
|
52 | |||
53 | # Third-party imports |
|
53 | # Third-party imports | |
54 |
|
54 | |||
55 | # This is Michele Simionato's decorator module, kept verbatim. |
|
55 | # This is Michele Simionato's decorator module, kept verbatim. | |
56 | from IPython.external.decorator import decorator, update_wrapper |
|
56 | from IPython.external.decorator import decorator, update_wrapper | |
57 |
|
57 | |||
58 | # We already have python3-compliant code for parametric tests |
|
58 | # We already have python3-compliant code for parametric tests | |
59 | if sys.version[0]=='2': |
|
59 | if sys.version[0]=='2': | |
60 | from _paramtestpy2 import parametric, ParametricTestCase |
|
60 | from _paramtestpy2 import parametric, ParametricTestCase | |
61 | else: |
|
61 | else: | |
62 | from _paramtestpy3 import parametric, ParametricTestCase |
|
62 | from _paramtestpy3 import parametric, ParametricTestCase | |
63 |
|
63 | |||
64 | # Expose the unittest-driven decorators |
|
64 | # Expose the unittest-driven decorators | |
65 | from ipunittest import ipdoctest, ipdocstring |
|
65 | from ipunittest import ipdoctest, ipdocstring | |
66 |
|
66 | |||
67 | # Grab the numpy-specific decorators which we keep in a file that we |
|
67 | # Grab the numpy-specific decorators which we keep in a file that we | |
68 | # occasionally update from upstream: decorators.py is a copy of |
|
68 | # occasionally update from upstream: decorators.py is a copy of | |
69 | # numpy.testing.decorators, we expose all of it here. |
|
69 | # numpy.testing.decorators, we expose all of it here. | |
70 | from IPython.external.decorators import * |
|
70 | from IPython.external.decorators import * | |
71 |
|
71 | |||
72 | #----------------------------------------------------------------------------- |
|
72 | #----------------------------------------------------------------------------- | |
73 | # Classes and functions |
|
73 | # Classes and functions | |
74 | #----------------------------------------------------------------------------- |
|
74 | #----------------------------------------------------------------------------- | |
75 |
|
75 | |||
76 | # Simple example of the basic idea |
|
76 | # Simple example of the basic idea | |
77 | def as_unittest(func): |
|
77 | def as_unittest(func): | |
78 | """Decorator to make a simple function into a normal test via unittest.""" |
|
78 | """Decorator to make a simple function into a normal test via unittest.""" | |
79 | class Tester(unittest.TestCase): |
|
79 | class Tester(unittest.TestCase): | |
80 | def test(self): |
|
80 | def test(self): | |
81 | func() |
|
81 | func() | |
82 |
|
82 | |||
83 | Tester.__name__ = func.__name__ |
|
83 | Tester.__name__ = func.__name__ | |
84 |
|
84 | |||
85 | return Tester |
|
85 | return Tester | |
86 |
|
86 | |||
87 | # Utility functions |
|
87 | # Utility functions | |
88 |
|
88 | |||
89 | def apply_wrapper(wrapper,func): |
|
89 | def apply_wrapper(wrapper,func): | |
90 | """Apply a wrapper to a function for decoration. |
|
90 | """Apply a wrapper to a function for decoration. | |
91 |
|
91 | |||
92 | This mixes Michele Simionato's decorator tool with nose's make_decorator, |
|
92 | This mixes Michele Simionato's decorator tool with nose's make_decorator, | |
93 | to apply a wrapper in a decorator so that all nose attributes, as well as |
|
93 | to apply a wrapper in a decorator so that all nose attributes, as well as | |
94 | function signature and other properties, survive the decoration cleanly. |
|
94 | function signature and other properties, survive the decoration cleanly. | |
95 | This will ensure that wrapped functions can still be well introspected via |
|
95 | This will ensure that wrapped functions can still be well introspected via | |
96 | IPython, for example. |
|
96 | IPython, for example. | |
97 | """ |
|
97 | """ | |
98 | import nose.tools |
|
98 | import nose.tools | |
99 |
|
99 | |||
100 | return decorator(wrapper,nose.tools.make_decorator(func)(wrapper)) |
|
100 | return decorator(wrapper,nose.tools.make_decorator(func)(wrapper)) | |
101 |
|
101 | |||
102 |
|
102 | |||
103 | def make_label_dec(label,ds=None): |
|
103 | def make_label_dec(label,ds=None): | |
104 | """Factory function to create a decorator that applies one or more labels. |
|
104 | """Factory function to create a decorator that applies one or more labels. | |
105 |
|
105 | |||
106 | Parameters |
|
106 | Parameters | |
107 | ---------- |
|
107 | ---------- | |
108 | label : string or sequence |
|
108 | label : string or sequence | |
109 | One or more labels that will be applied by the decorator to the functions |
|
109 | One or more labels that will be applied by the decorator to the functions | |
110 | it decorates. Labels are attributes of the decorated function with their |
|
110 | it decorates. Labels are attributes of the decorated function with their | |
111 | value set to True. |
|
111 | value set to True. | |
112 |
|
112 | |||
113 | ds : string |
|
113 | ds : string | |
114 | An optional docstring for the resulting decorator. If not given, a |
|
114 | An optional docstring for the resulting decorator. If not given, a | |
115 | default docstring is auto-generated. |
|
115 | default docstring is auto-generated. | |
116 |
|
116 | |||
117 | Returns |
|
117 | Returns | |
118 | ------- |
|
118 | ------- | |
119 | A decorator. |
|
119 | A decorator. | |
120 |
|
120 | |||
121 | Examples |
|
121 | Examples | |
122 | -------- |
|
122 | -------- | |
123 |
|
123 | |||
124 | A simple labeling decorator: |
|
124 | A simple labeling decorator: | |
125 | >>> slow = make_label_dec('slow') |
|
125 | >>> slow = make_label_dec('slow') | |
126 | >>> print slow.__doc__ |
|
126 | >>> print slow.__doc__ | |
127 | Labels a test as 'slow'. |
|
127 | Labels a test as 'slow'. | |
128 |
|
128 | |||
129 | And one that uses multiple labels and a custom docstring: |
|
129 | And one that uses multiple labels and a custom docstring: | |
130 | >>> rare = make_label_dec(['slow','hard'], |
|
130 | >>> rare = make_label_dec(['slow','hard'], | |
131 | ... "Mix labels 'slow' and 'hard' for rare tests.") |
|
131 | ... "Mix labels 'slow' and 'hard' for rare tests.") | |
132 | >>> print rare.__doc__ |
|
132 | >>> print rare.__doc__ | |
133 | Mix labels 'slow' and 'hard' for rare tests. |
|
133 | Mix labels 'slow' and 'hard' for rare tests. | |
134 |
|
134 | |||
135 | Now, let's test using this one: |
|
135 | Now, let's test using this one: | |
136 | >>> @rare |
|
136 | >>> @rare | |
137 | ... def f(): pass |
|
137 | ... def f(): pass | |
138 | ... |
|
138 | ... | |
139 | >>> |
|
139 | >>> | |
140 | >>> f.slow |
|
140 | >>> f.slow | |
141 | True |
|
141 | True | |
142 | >>> f.hard |
|
142 | >>> f.hard | |
143 | True |
|
143 | True | |
144 | """ |
|
144 | """ | |
145 |
|
145 | |||
146 | if isinstance(label,basestring): |
|
146 | if isinstance(label,basestring): | |
147 | labels = [label] |
|
147 | labels = [label] | |
148 | else: |
|
148 | else: | |
149 | labels = label |
|
149 | labels = label | |
150 |
|
150 | |||
151 | # Validate that the given label(s) are OK for use in setattr() by doing a |
|
151 | # Validate that the given label(s) are OK for use in setattr() by doing a | |
152 | # dry run on a dummy function. |
|
152 | # dry run on a dummy function. | |
153 | tmp = lambda : None |
|
153 | tmp = lambda : None | |
154 | for label in labels: |
|
154 | for label in labels: | |
155 | setattr(tmp,label,True) |
|
155 | setattr(tmp,label,True) | |
156 |
|
156 | |||
157 | # This is the actual decorator we'll return |
|
157 | # This is the actual decorator we'll return | |
158 | def decor(f): |
|
158 | def decor(f): | |
159 | for label in labels: |
|
159 | for label in labels: | |
160 | setattr(f,label,True) |
|
160 | setattr(f,label,True) | |
161 | return f |
|
161 | return f | |
162 |
|
162 | |||
163 | # Apply the user's docstring, or autogenerate a basic one |
|
163 | # Apply the user's docstring, or autogenerate a basic one | |
164 | if ds is None: |
|
164 | if ds is None: | |
165 | ds = "Labels a test as %r." % label |
|
165 | ds = "Labels a test as %r." % label | |
166 | decor.__doc__ = ds |
|
166 | decor.__doc__ = ds | |
167 |
|
167 | |||
168 | return decor |
|
168 | return decor | |
169 |
|
169 | |||
170 |
|
170 | |||
171 | # Inspired by numpy's skipif, but uses the full apply_wrapper utility to |
|
171 | # Inspired by numpy's skipif, but uses the full apply_wrapper utility to | |
172 | # preserve function metadata better and allows the skip condition to be a |
|
172 | # preserve function metadata better and allows the skip condition to be a | |
173 | # callable. |
|
173 | # callable. | |
174 | def skipif(skip_condition, msg=None): |
|
174 | def skipif(skip_condition, msg=None): | |
175 | ''' Make function raise SkipTest exception if skip_condition is true |
|
175 | ''' Make function raise SkipTest exception if skip_condition is true | |
176 |
|
176 | |||
177 | Parameters |
|
177 | Parameters | |
178 | ---------- |
|
178 | ---------- | |
179 | skip_condition : bool or callable. |
|
179 | skip_condition : bool or callable. | |
180 | Flag to determine whether to skip test. If the condition is a |
|
180 | Flag to determine whether to skip test. If the condition is a | |
181 | callable, it is used at runtime to dynamically make the decision. This |
|
181 | callable, it is used at runtime to dynamically make the decision. This | |
182 | is useful for tests that may require costly imports, to delay the cost |
|
182 | is useful for tests that may require costly imports, to delay the cost | |
183 | until the test suite is actually executed. |
|
183 | until the test suite is actually executed. | |
184 | msg : string |
|
184 | msg : string | |
185 | Message to give on raising a SkipTest exception |
|
185 | Message to give on raising a SkipTest exception | |
186 |
|
186 | |||
187 | Returns |
|
187 | Returns | |
188 | ------- |
|
188 | ------- | |
189 | decorator : function |
|
189 | decorator : function | |
190 | Decorator, which, when applied to a function, causes SkipTest |
|
190 | Decorator, which, when applied to a function, causes SkipTest | |
191 | to be raised when the skip_condition was True, and the function |
|
191 | to be raised when the skip_condition was True, and the function | |
192 | to be called normally otherwise. |
|
192 | to be called normally otherwise. | |
193 |
|
193 | |||
194 | Notes |
|
194 | Notes | |
195 | ----- |
|
195 | ----- | |
196 | You will see from the code that we had to further decorate the |
|
196 | You will see from the code that we had to further decorate the | |
197 | decorator with the nose.tools.make_decorator function in order to |
|
197 | decorator with the nose.tools.make_decorator function in order to | |
198 | transmit function name, and various other metadata. |
|
198 | transmit function name, and various other metadata. | |
199 | ''' |
|
199 | ''' | |
200 |
|
200 | |||
201 | def skip_decorator(f): |
|
201 | def skip_decorator(f): | |
202 | # Local import to avoid a hard nose dependency and only incur the |
|
202 | # Local import to avoid a hard nose dependency and only incur the | |
203 | # import time overhead at actual test-time. |
|
203 | # import time overhead at actual test-time. | |
204 | import nose |
|
204 | import nose | |
205 |
|
205 | |||
206 | # Allow for both boolean or callable skip conditions. |
|
206 | # Allow for both boolean or callable skip conditions. | |
207 | if callable(skip_condition): |
|
207 | if callable(skip_condition): | |
208 | skip_val = skip_condition |
|
208 | skip_val = skip_condition | |
209 | else: |
|
209 | else: | |
210 | skip_val = lambda : skip_condition |
|
210 | skip_val = lambda : skip_condition | |
211 |
|
211 | |||
212 | def get_msg(func,msg=None): |
|
212 | def get_msg(func,msg=None): | |
213 | """Skip message with information about function being skipped.""" |
|
213 | """Skip message with information about function being skipped.""" | |
214 | if msg is None: out = 'Test skipped due to test condition.' |
|
214 | if msg is None: out = 'Test skipped due to test condition.' | |
215 | else: out = msg |
|
215 | else: out = msg | |
216 | return "Skipping test: %s. %s" % (func.__name__,out) |
|
216 | return "Skipping test: %s. %s" % (func.__name__,out) | |
217 |
|
217 | |||
218 | # We need to define *two* skippers because Python doesn't allow both |
|
218 | # We need to define *two* skippers because Python doesn't allow both | |
219 | # return with value and yield inside the same function. |
|
219 | # return with value and yield inside the same function. | |
220 | def skipper_func(*args, **kwargs): |
|
220 | def skipper_func(*args, **kwargs): | |
221 | """Skipper for normal test functions.""" |
|
221 | """Skipper for normal test functions.""" | |
222 | if skip_val(): |
|
222 | if skip_val(): | |
223 | raise nose.SkipTest(get_msg(f,msg)) |
|
223 | raise nose.SkipTest(get_msg(f,msg)) | |
224 | else: |
|
224 | else: | |
225 | return f(*args, **kwargs) |
|
225 | return f(*args, **kwargs) | |
226 |
|
226 | |||
227 | def skipper_gen(*args, **kwargs): |
|
227 | def skipper_gen(*args, **kwargs): | |
228 | """Skipper for test generators.""" |
|
228 | """Skipper for test generators.""" | |
229 | if skip_val(): |
|
229 | if skip_val(): | |
230 | raise nose.SkipTest(get_msg(f,msg)) |
|
230 | raise nose.SkipTest(get_msg(f,msg)) | |
231 | else: |
|
231 | else: | |
232 | for x in f(*args, **kwargs): |
|
232 | for x in f(*args, **kwargs): | |
233 | yield x |
|
233 | yield x | |
234 |
|
234 | |||
235 | # Choose the right skipper to use when building the actual generator. |
|
235 | # Choose the right skipper to use when building the actual generator. | |
236 | if nose.util.isgenerator(f): |
|
236 | if nose.util.isgenerator(f): | |
237 | skipper = skipper_gen |
|
237 | skipper = skipper_gen | |
238 | else: |
|
238 | else: | |
239 | skipper = skipper_func |
|
239 | skipper = skipper_func | |
240 |
|
240 | |||
241 | return nose.tools.make_decorator(f)(skipper) |
|
241 | return nose.tools.make_decorator(f)(skipper) | |
242 |
|
242 | |||
243 | return skip_decorator |
|
243 | return skip_decorator | |
244 |
|
244 | |||
245 | # A version with the condition set to true, common case just to attacha message |
|
245 | # A version with the condition set to true, common case just to attacha message | |
246 | # to a skip decorator |
|
246 | # to a skip decorator | |
247 | def skip(msg=None): |
|
247 | def skip(msg=None): | |
248 | """Decorator factory - mark a test function for skipping from test suite. |
|
248 | """Decorator factory - mark a test function for skipping from test suite. | |
249 |
|
249 | |||
250 | Parameters |
|
250 | Parameters | |
251 | ---------- |
|
251 | ---------- | |
252 | msg : string |
|
252 | msg : string | |
253 | Optional message to be added. |
|
253 | Optional message to be added. | |
254 |
|
254 | |||
255 | Returns |
|
255 | Returns | |
256 | ------- |
|
256 | ------- | |
257 | decorator : function |
|
257 | decorator : function | |
258 | Decorator, which, when applied to a function, causes SkipTest |
|
258 | Decorator, which, when applied to a function, causes SkipTest | |
259 | to be raised, with the optional message added. |
|
259 | to be raised, with the optional message added. | |
260 | """ |
|
260 | """ | |
261 |
|
261 | |||
262 | return skipif(True,msg) |
|
262 | return skipif(True,msg) | |
263 |
|
263 | |||
264 |
|
264 | |||
265 | def onlyif(condition, msg): |
|
265 | def onlyif(condition, msg): | |
266 | """The reverse from skipif, see skipif for details.""" |
|
266 | """The reverse from skipif, see skipif for details.""" | |
267 |
|
267 | |||
268 | if callable(condition): |
|
268 | if callable(condition): | |
269 | skip_condition = lambda : not condition() |
|
269 | skip_condition = lambda : not condition() | |
270 | else: |
|
270 | else: | |
271 | skip_condition = lambda : not condition |
|
271 | skip_condition = lambda : not condition | |
272 |
|
272 | |||
273 | return skipif(skip_condition, msg) |
|
273 | return skipif(skip_condition, msg) | |
274 |
|
274 | |||
275 | #----------------------------------------------------------------------------- |
|
275 | #----------------------------------------------------------------------------- | |
276 | # Utility functions for decorators |
|
276 | # Utility functions for decorators | |
277 | def numpy_not_available(): |
|
277 | def numpy_not_available(): | |
278 | """Can numpy be imported? Returns true if numpy does NOT import. |
|
278 | """Can numpy be imported? Returns true if numpy does NOT import. | |
279 |
|
279 | |||
280 | This is used to make a decorator to skip tests that require numpy to be |
|
280 | This is used to make a decorator to skip tests that require numpy to be | |
281 | available, but delay the 'import numpy' to test execution time. |
|
281 | available, but delay the 'import numpy' to test execution time. | |
282 | """ |
|
282 | """ | |
283 | try: |
|
283 | try: | |
284 | import numpy |
|
284 | import numpy | |
285 | np_not_avail = False |
|
285 | np_not_avail = False | |
286 | except ImportError: |
|
286 | except ImportError: | |
287 | np_not_avail = True |
|
287 | np_not_avail = True | |
288 |
|
288 | |||
289 | return np_not_avail |
|
289 | return np_not_avail | |
290 |
|
290 | |||
291 | #----------------------------------------------------------------------------- |
|
291 | #----------------------------------------------------------------------------- | |
292 | # Decorators for public use |
|
292 | # Decorators for public use | |
293 |
|
293 | |||
294 | skip_doctest = make_label_dec('skip_doctest', |
|
294 | skip_doctest = make_label_dec('skip_doctest', | |
295 | """Decorator - mark a function or method for skipping its doctest. |
|
295 | """Decorator - mark a function or method for skipping its doctest. | |
296 |
|
296 | |||
297 | This decorator allows you to mark a function whose docstring you wish to |
|
297 | This decorator allows you to mark a function whose docstring you wish to | |
298 | omit from testing, while preserving the docstring for introspection, help, |
|
298 | omit from testing, while preserving the docstring for introspection, help, | |
299 | etc.""") |
|
299 | etc.""") | |
300 |
|
300 | |||
301 | # Decorators to skip certain tests on specific platforms. |
|
301 | # Decorators to skip certain tests on specific platforms. | |
302 | skip_win32 = skipif(sys.platform == 'win32', |
|
302 | skip_win32 = skipif(sys.platform == 'win32', | |
303 | "This test does not run under Windows") |
|
303 | "This test does not run under Windows") | |
304 | skip_linux = skipif(sys.platform == 'linux2', |
|
304 | skip_linux = skipif(sys.platform == 'linux2', | |
305 | "This test does not run under Linux") |
|
305 | "This test does not run under Linux") | |
306 | skip_osx = skipif(sys.platform == 'darwin',"This test does not run under OS X") |
|
306 | skip_osx = skipif(sys.platform == 'darwin',"This test does not run under OS X") | |
307 |
|
307 | |||
308 |
|
308 | |||
309 | # Decorators to skip tests if not on specific platforms. |
|
309 | # Decorators to skip tests if not on specific platforms. | |
310 | skip_if_not_win32 = skipif(sys.platform != 'win32', |
|
310 | skip_if_not_win32 = skipif(sys.platform != 'win32', | |
311 | "This test only runs under Windows") |
|
311 | "This test only runs under Windows") | |
312 | skip_if_not_linux = skipif(sys.platform != 'linux2', |
|
312 | skip_if_not_linux = skipif(sys.platform != 'linux2', | |
313 | "This test only runs under Linux") |
|
313 | "This test only runs under Linux") | |
314 | skip_if_not_osx = skipif(sys.platform != 'darwin', |
|
314 | skip_if_not_osx = skipif(sys.platform != 'darwin', | |
315 | "This test only runs under OSX") |
|
315 | "This test only runs under OSX") | |
316 |
|
316 | |||
317 | # Other skip decorators |
|
317 | # Other skip decorators | |
318 | skipif_not_numpy = skipif(numpy_not_available,"This test requires numpy") |
|
318 | skipif_not_numpy = skipif(numpy_not_available,"This test requires numpy") | |
319 |
|
319 | |||
320 | skipknownfailure = skip('This test is known to fail') |
|
320 | skip_known_failure = skip('This test is known to fail') | |
321 |
|
321 | |||
322 | # A null 'decorator', useful to make more readable code that needs to pick |
|
322 | # A null 'decorator', useful to make more readable code that needs to pick | |
323 | # between different decorators based on OS or other conditions |
|
323 | # between different decorators based on OS or other conditions | |
324 | null_deco = lambda f: f |
|
324 | null_deco = lambda f: f |
@@ -1,132 +1,132 b'' | |||||
1 | # encoding: utf-8 |
|
1 | # encoding: utf-8 | |
2 | """ |
|
2 | """ | |
3 | Testing related decorators for use with twisted.trial. |
|
3 | Testing related decorators for use with twisted.trial. | |
4 |
|
4 | |||
5 | The decorators in this files are designed to follow the same API as those |
|
5 | The decorators in this files are designed to follow the same API as those | |
6 | in the decorators module (in this same directory). But they can be used |
|
6 | in the decorators module (in this same directory). But they can be used | |
7 | with twisted.trial |
|
7 | with twisted.trial | |
8 | """ |
|
8 | """ | |
9 |
|
9 | |||
10 | #----------------------------------------------------------------------------- |
|
10 | #----------------------------------------------------------------------------- | |
11 | # Copyright (C) 2008-2009 The IPython Development Team |
|
11 | # Copyright (C) 2008-2009 The IPython Development Team | |
12 | # |
|
12 | # | |
13 | # Distributed under the terms of the BSD License. The full license is in |
|
13 | # Distributed under the terms of the BSD License. The full license is in | |
14 | # the file COPYING, distributed as part of this software. |
|
14 | # the file COPYING, distributed as part of this software. | |
15 | #----------------------------------------------------------------------------- |
|
15 | #----------------------------------------------------------------------------- | |
16 |
|
16 | |||
17 | #----------------------------------------------------------------------------- |
|
17 | #----------------------------------------------------------------------------- | |
18 | # Imports |
|
18 | # Imports | |
19 | #----------------------------------------------------------------------------- |
|
19 | #----------------------------------------------------------------------------- | |
20 |
|
20 | |||
21 | import os |
|
21 | import os | |
22 | import sys |
|
22 | import sys | |
23 |
|
23 | |||
24 | from IPython.testing.decorators import make_label_dec |
|
24 | from IPython.testing.decorators import make_label_dec | |
25 |
|
25 | |||
26 | #----------------------------------------------------------------------------- |
|
26 | #----------------------------------------------------------------------------- | |
27 | # Testing decorators |
|
27 | # Testing decorators | |
28 | #----------------------------------------------------------------------------- |
|
28 | #----------------------------------------------------------------------------- | |
29 |
|
29 | |||
30 |
|
30 | |||
31 | def skipif(skip_condition, msg=None): |
|
31 | def skipif(skip_condition, msg=None): | |
32 | """Create a decorator that marks a test function for skipping. |
|
32 | """Create a decorator that marks a test function for skipping. | |
33 |
|
33 | |||
34 | The is a decorator factory that returns a decorator that will |
|
34 | The is a decorator factory that returns a decorator that will | |
35 | conditionally skip a test based on the value of skip_condition. The |
|
35 | conditionally skip a test based on the value of skip_condition. The | |
36 | skip_condition argument can either be a boolean or a callable that returns |
|
36 | skip_condition argument can either be a boolean or a callable that returns | |
37 | a boolean. |
|
37 | a boolean. | |
38 |
|
38 | |||
39 | Parameters |
|
39 | Parameters | |
40 | ---------- |
|
40 | ---------- | |
41 | skip_condition : boolean or callable |
|
41 | skip_condition : boolean or callable | |
42 | If this evaluates to True, the test is skipped. |
|
42 | If this evaluates to True, the test is skipped. | |
43 | msg : str |
|
43 | msg : str | |
44 | The message to print if the test is skipped. |
|
44 | The message to print if the test is skipped. | |
45 |
|
45 | |||
46 | Returns |
|
46 | Returns | |
47 | ------- |
|
47 | ------- | |
48 | decorator : function |
|
48 | decorator : function | |
49 | The decorator function that can be applied to the test function. |
|
49 | The decorator function that can be applied to the test function. | |
50 | """ |
|
50 | """ | |
51 |
|
51 | |||
52 | def skip_decorator(f): |
|
52 | def skip_decorator(f): | |
53 |
|
53 | |||
54 | # Allow for both boolean or callable skip conditions. |
|
54 | # Allow for both boolean or callable skip conditions. | |
55 | if callable(skip_condition): |
|
55 | if callable(skip_condition): | |
56 | skip_val = lambda : skip_condition() |
|
56 | skip_val = lambda : skip_condition() | |
57 | else: |
|
57 | else: | |
58 | skip_val = lambda : skip_condition |
|
58 | skip_val = lambda : skip_condition | |
59 |
|
59 | |||
60 | if msg is None: |
|
60 | if msg is None: | |
61 | out = 'Test skipped due to test condition.' |
|
61 | out = 'Test skipped due to test condition.' | |
62 | else: |
|
62 | else: | |
63 | out = msg |
|
63 | out = msg | |
64 | final_msg = "Skipping test: %s. %s" % (f.__name__,out) |
|
64 | final_msg = "Skipping test: %s. %s" % (f.__name__,out) | |
65 |
|
65 | |||
66 | if skip_val(): |
|
66 | if skip_val(): | |
67 | f.skip = final_msg |
|
67 | f.skip = final_msg | |
68 |
|
68 | |||
69 | return f |
|
69 | return f | |
70 | return skip_decorator |
|
70 | return skip_decorator | |
71 |
|
71 | |||
72 |
|
72 | |||
73 | def skip(msg=None): |
|
73 | def skip(msg=None): | |
74 | """Create a decorator that marks a test function for skipping. |
|
74 | """Create a decorator that marks a test function for skipping. | |
75 |
|
75 | |||
76 | This is a decorator factory that returns a decorator that will cause |
|
76 | This is a decorator factory that returns a decorator that will cause | |
77 | tests to be skipped. |
|
77 | tests to be skipped. | |
78 |
|
78 | |||
79 | Parameters |
|
79 | Parameters | |
80 | ---------- |
|
80 | ---------- | |
81 | msg : str |
|
81 | msg : str | |
82 | Optional message to be added. |
|
82 | Optional message to be added. | |
83 |
|
83 | |||
84 | Returns |
|
84 | Returns | |
85 | ------- |
|
85 | ------- | |
86 | decorator : function |
|
86 | decorator : function | |
87 | Decorator, which, when applied to a function, sets the skip |
|
87 | Decorator, which, when applied to a function, sets the skip | |
88 | attribute of the function causing `twisted.trial` to skip it. |
|
88 | attribute of the function causing `twisted.trial` to skip it. | |
89 | """ |
|
89 | """ | |
90 |
|
90 | |||
91 | return skipif(True,msg) |
|
91 | return skipif(True,msg) | |
92 |
|
92 | |||
93 |
|
93 | |||
94 | def numpy_not_available(): |
|
94 | def numpy_not_available(): | |
95 | """Can numpy be imported? Returns true if numpy does NOT import. |
|
95 | """Can numpy be imported? Returns true if numpy does NOT import. | |
96 |
|
96 | |||
97 | This is used to make a decorator to skip tests that require numpy to be |
|
97 | This is used to make a decorator to skip tests that require numpy to be | |
98 | available, but delay the 'import numpy' to test execution time. |
|
98 | available, but delay the 'import numpy' to test execution time. | |
99 | """ |
|
99 | """ | |
100 | try: |
|
100 | try: | |
101 | import numpy |
|
101 | import numpy | |
102 | np_not_avail = False |
|
102 | np_not_avail = False | |
103 | except ImportError: |
|
103 | except ImportError: | |
104 | np_not_avail = True |
|
104 | np_not_avail = True | |
105 |
|
105 | |||
106 | return np_not_avail |
|
106 | return np_not_avail | |
107 |
|
107 | |||
108 | #----------------------------------------------------------------------------- |
|
108 | #----------------------------------------------------------------------------- | |
109 | # Decorators for public use |
|
109 | # Decorators for public use | |
110 | #----------------------------------------------------------------------------- |
|
110 | #----------------------------------------------------------------------------- | |
111 |
|
111 | |||
112 | # Decorators to skip certain tests on specific platforms. |
|
112 | # Decorators to skip certain tests on specific platforms. | |
113 | skip_win32 = skipif(sys.platform == 'win32', |
|
113 | skip_win32 = skipif(sys.platform == 'win32', | |
114 | "This test does not run under Windows") |
|
114 | "This test does not run under Windows") | |
115 | skip_linux = skipif(sys.platform == 'linux2', |
|
115 | skip_linux = skipif(sys.platform == 'linux2', | |
116 | "This test does not run under Linux") |
|
116 | "This test does not run under Linux") | |
117 | skip_osx = skipif(sys.platform == 'darwin',"This test does not run under OS X") |
|
117 | skip_osx = skipif(sys.platform == 'darwin',"This test does not run under OS X") | |
118 |
|
118 | |||
119 | # Decorators to skip tests if not on specific platforms. |
|
119 | # Decorators to skip tests if not on specific platforms. | |
120 | skip_if_not_win32 = skipif(sys.platform != 'win32', |
|
120 | skip_if_not_win32 = skipif(sys.platform != 'win32', | |
121 | "This test only runs under Windows") |
|
121 | "This test only runs under Windows") | |
122 | skip_if_not_linux = skipif(sys.platform != 'linux2', |
|
122 | skip_if_not_linux = skipif(sys.platform != 'linux2', | |
123 | "This test only runs under Linux") |
|
123 | "This test only runs under Linux") | |
124 | skip_if_not_osx = skipif(sys.platform != 'darwin', |
|
124 | skip_if_not_osx = skipif(sys.platform != 'darwin', | |
125 | "This test only runs under OSX") |
|
125 | "This test only runs under OSX") | |
126 |
|
126 | |||
127 | # Other skip decorators |
|
127 | # Other skip decorators | |
128 | skipif_not_numpy = skipif(numpy_not_available,"This test requires numpy") |
|
128 | skipif_not_numpy = skipif(numpy_not_available,"This test requires numpy") | |
129 |
|
129 | |||
130 | skipknownfailure = skip('This test is known to fail') |
|
130 | skip_known_failure = skip('This test is known to fail') | |
131 |
|
131 | |||
132 |
|
132 |
@@ -1,367 +1,369 b'' | |||||
1 | #!/usr/bin/env python |
|
1 | #!/usr/bin/env python | |
2 | """A simple interactive kernel that talks to a frontend over 0MQ. |
|
2 | """A simple interactive kernel that talks to a frontend over 0MQ. | |
3 |
|
3 | |||
4 | Things to do: |
|
4 | Things to do: | |
5 |
|
5 | |||
6 | * Implement `set_parent` logic. Right before doing exec, the Kernel should |
|
6 | * Implement `set_parent` logic. Right before doing exec, the Kernel should | |
7 | call set_parent on all the PUB objects with the message about to be executed. |
|
7 | call set_parent on all the PUB objects with the message about to be executed. | |
8 | * Implement random port and security key logic. |
|
8 | * Implement random port and security key logic. | |
9 | * Implement control messages. |
|
9 | * Implement control messages. | |
10 | * Implement event loop and poll version. |
|
10 | * Implement event loop and poll version. | |
11 | """ |
|
11 | """ | |
12 |
|
12 | |||
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 | # Imports |
|
14 | # Imports | |
15 | #----------------------------------------------------------------------------- |
|
15 | #----------------------------------------------------------------------------- | |
16 |
|
16 | |||
17 | # Standard library imports. |
|
17 | # Standard library imports. | |
18 | import __builtin__ |
|
18 | import __builtin__ | |
19 | from code import CommandCompiler |
|
19 | from code import CommandCompiler | |
20 | import os |
|
20 | import os | |
21 | import sys |
|
21 | import sys | |
22 | import time |
|
22 | import time | |
23 | import traceback |
|
23 | import traceback | |
24 |
|
24 | |||
25 | # System library imports. |
|
25 | # System library imports. | |
26 | import zmq |
|
26 | import zmq | |
27 |
|
27 | |||
28 | # Local imports. |
|
28 | # Local imports. | |
29 | from IPython.config.configurable import Configurable |
|
29 | from IPython.config.configurable import Configurable | |
30 | from IPython.zmq.zmqshell import ZMQInteractiveShell |
|
30 | from IPython.zmq.zmqshell import ZMQInteractiveShell | |
31 | from IPython.external.argparse import ArgumentParser |
|
31 | from IPython.external.argparse import ArgumentParser | |
32 | from IPython.utils.traitlets import Instance |
|
32 | from IPython.utils.traitlets import Instance | |
33 | from IPython.zmq.session import Session, Message |
|
33 | from IPython.zmq.session import Session, Message | |
34 | from completer import KernelCompleter |
|
34 | from completer import KernelCompleter | |
35 | from iostream import OutStream |
|
35 | from iostream import OutStream | |
36 | from displayhook import DisplayHook |
|
36 | from displayhook import DisplayHook | |
37 | from exitpoller import ExitPollerUnix, ExitPollerWindows |
|
37 | from exitpoller import ExitPollerUnix, ExitPollerWindows | |
38 |
|
38 | |||
39 | #----------------------------------------------------------------------------- |
|
39 | #----------------------------------------------------------------------------- | |
40 | # Main kernel class |
|
40 | # Main kernel class | |
41 | #----------------------------------------------------------------------------- |
|
41 | #----------------------------------------------------------------------------- | |
42 |
|
42 | |||
43 | class Kernel(Configurable): |
|
43 | class Kernel(Configurable): | |
44 |
|
44 | |||
45 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') |
|
45 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') | |
46 | session = Instance('IPython.zmq.session.Session') |
|
46 | session = Instance('IPython.zmq.session.Session') | |
47 | reply_socket = Instance('zmq.Socket') |
|
47 | reply_socket = Instance('zmq.Socket') | |
48 | pub_socket = Instance('zmq.Socket') |
|
48 | pub_socket = Instance('zmq.Socket') | |
49 | req_socket = Instance('zmq.Socket') |
|
49 | req_socket = Instance('zmq.Socket') | |
50 |
|
50 | |||
51 | def __init__(self, **kwargs): |
|
51 | def __init__(self, **kwargs): | |
52 | super(Kernel, self).__init__(**kwargs) |
|
52 | super(Kernel, self).__init__(**kwargs) | |
|
53 | ||||
|
54 | # Initialize the InteractiveShell subclass | |||
53 | self.shell = ZMQInteractiveShell.instance() |
|
55 | self.shell = ZMQInteractiveShell.instance() | |
54 |
|
56 | self.shell.displayhook.session = self.session | ||
|
57 | self.shell.displayhook.pub_socket = self.pub_socket | |||
|
58 | ||||
55 | # Build dict of handlers for message types |
|
59 | # Build dict of handlers for message types | |
56 | msg_types = [ 'execute_request', 'complete_request', |
|
60 | msg_types = [ 'execute_request', 'complete_request', | |
57 | 'object_info_request' ] |
|
61 | 'object_info_request' ] | |
58 | self.handlers = {} |
|
62 | self.handlers = {} | |
59 | for msg_type in msg_types: |
|
63 | for msg_type in msg_types: | |
60 | self.handlers[msg_type] = getattr(self, msg_type) |
|
64 | self.handlers[msg_type] = getattr(self, msg_type) | |
61 |
|
65 | |||
62 | def abort_queue(self): |
|
66 | def abort_queue(self): | |
63 | while True: |
|
67 | while True: | |
64 | try: |
|
68 | try: | |
65 | ident = self.reply_socket.recv(zmq.NOBLOCK) |
|
69 | ident = self.reply_socket.recv(zmq.NOBLOCK) | |
66 | except zmq.ZMQError, e: |
|
70 | except zmq.ZMQError, e: | |
67 | if e.errno == zmq.EAGAIN: |
|
71 | if e.errno == zmq.EAGAIN: | |
68 | break |
|
72 | break | |
69 | else: |
|
73 | else: | |
70 | assert self.reply_socket.rcvmore(), "Unexpected missing message part." |
|
74 | assert self.reply_socket.rcvmore(), "Unexpected missing message part." | |
71 | msg = self.reply_socket.recv_json() |
|
75 | msg = self.reply_socket.recv_json() | |
72 | print>>sys.__stdout__, "Aborting:" |
|
76 | print>>sys.__stdout__, "Aborting:" | |
73 | print>>sys.__stdout__, Message(msg) |
|
77 | print>>sys.__stdout__, Message(msg) | |
74 | msg_type = msg['msg_type'] |
|
78 | msg_type = msg['msg_type'] | |
75 | reply_type = msg_type.split('_')[0] + '_reply' |
|
79 | reply_type = msg_type.split('_')[0] + '_reply' | |
76 | reply_msg = self.session.msg(reply_type, {'status' : 'aborted'}, msg) |
|
80 | reply_msg = self.session.msg(reply_type, {'status' : 'aborted'}, msg) | |
77 | print>>sys.__stdout__, Message(reply_msg) |
|
81 | print>>sys.__stdout__, Message(reply_msg) | |
78 | self.reply_socket.send(ident,zmq.SNDMORE) |
|
82 | self.reply_socket.send(ident,zmq.SNDMORE) | |
79 | self.reply_socket.send_json(reply_msg) |
|
83 | self.reply_socket.send_json(reply_msg) | |
80 | # We need to wait a bit for requests to come in. This can probably |
|
84 | # We need to wait a bit for requests to come in. This can probably | |
81 | # be set shorter for true asynchronous clients. |
|
85 | # be set shorter for true asynchronous clients. | |
82 | time.sleep(0.1) |
|
86 | time.sleep(0.1) | |
83 |
|
87 | |||
84 | def execute_request(self, ident, parent): |
|
88 | def execute_request(self, ident, parent): | |
85 | try: |
|
89 | try: | |
86 | code = parent[u'content'][u'code'] |
|
90 | code = parent[u'content'][u'code'] | |
87 | except: |
|
91 | except: | |
88 | print>>sys.__stderr__, "Got bad msg: " |
|
92 | print>>sys.__stderr__, "Got bad msg: " | |
89 | print>>sys.__stderr__, Message(parent) |
|
93 | print>>sys.__stderr__, Message(parent) | |
90 | return |
|
94 | return | |
91 | pyin_msg = self.session.msg(u'pyin',{u'code':code}, parent=parent) |
|
95 | pyin_msg = self.session.msg(u'pyin',{u'code':code}, parent=parent) | |
92 | self.pub_socket.send_json(pyin_msg) |
|
96 | self.pub_socket.send_json(pyin_msg) | |
93 |
|
97 | |||
94 | try: |
|
98 | try: | |
95 | # Replace raw_input. Note that is not sufficient to replace |
|
99 | # Replace raw_input. Note that is not sufficient to replace | |
96 | # raw_input in the user namespace. |
|
100 | # raw_input in the user namespace. | |
97 | raw_input = lambda prompt='': self.raw_input(prompt, ident, parent) |
|
101 | raw_input = lambda prompt='': self.raw_input(prompt, ident, parent) | |
98 | __builtin__.raw_input = raw_input |
|
102 | __builtin__.raw_input = raw_input | |
99 |
|
103 | |||
100 |
# |
|
104 | # Set the parent message of the display hook. | |
101 |
s |
|
105 | self.shell.displayhook.set_parent(parent) | |
102 |
|
106 | |||
103 | self.shell.runlines(code) |
|
107 | self.shell.runlines(code) | |
104 | # exec comp_code in self.user_ns, self.user_ns |
|
108 | # exec comp_code in self.user_ns, self.user_ns | |
105 | except: |
|
109 | except: | |
106 | etype, evalue, tb = sys.exc_info() |
|
110 | etype, evalue, tb = sys.exc_info() | |
107 | tb = traceback.format_exception(etype, evalue, tb) |
|
111 | tb = traceback.format_exception(etype, evalue, tb) | |
108 | exc_content = { |
|
112 | exc_content = { | |
109 | u'status' : u'error', |
|
113 | u'status' : u'error', | |
110 | u'traceback' : tb, |
|
114 | u'traceback' : tb, | |
111 | u'ename' : unicode(etype.__name__), |
|
115 | u'ename' : unicode(etype.__name__), | |
112 | u'evalue' : unicode(evalue) |
|
116 | u'evalue' : unicode(evalue) | |
113 | } |
|
117 | } | |
114 | exc_msg = self.session.msg(u'pyerr', exc_content, parent) |
|
118 | exc_msg = self.session.msg(u'pyerr', exc_content, parent) | |
115 | self.pub_socket.send_json(exc_msg) |
|
119 | self.pub_socket.send_json(exc_msg) | |
116 | reply_content = exc_content |
|
120 | reply_content = exc_content | |
117 | else: |
|
121 | else: | |
118 | reply_content = {'status' : 'ok'} |
|
122 | reply_content = {'status' : 'ok'} | |
119 |
|
123 | |||
120 | # Flush output before sending the reply. |
|
124 | # Flush output before sending the reply. | |
121 | sys.stderr.flush() |
|
125 | sys.stderr.flush() | |
122 | sys.stdout.flush() |
|
126 | sys.stdout.flush() | |
123 |
|
127 | |||
124 | # Send the reply. |
|
128 | # Send the reply. | |
125 | reply_msg = self.session.msg(u'execute_reply', reply_content, parent) |
|
129 | reply_msg = self.session.msg(u'execute_reply', reply_content, parent) | |
126 | print>>sys.__stdout__, Message(reply_msg) |
|
130 | print>>sys.__stdout__, Message(reply_msg) | |
127 | self.reply_socket.send(ident, zmq.SNDMORE) |
|
131 | self.reply_socket.send(ident, zmq.SNDMORE) | |
128 | self.reply_socket.send_json(reply_msg) |
|
132 | self.reply_socket.send_json(reply_msg) | |
129 | if reply_msg['content']['status'] == u'error': |
|
133 | if reply_msg['content']['status'] == u'error': | |
130 | self.abort_queue() |
|
134 | self.abort_queue() | |
131 |
|
135 | |||
132 | def raw_input(self, prompt, ident, parent): |
|
136 | def raw_input(self, prompt, ident, parent): | |
133 | # Flush output before making the request. |
|
137 | # Flush output before making the request. | |
134 | sys.stderr.flush() |
|
138 | sys.stderr.flush() | |
135 | sys.stdout.flush() |
|
139 | sys.stdout.flush() | |
136 |
|
140 | |||
137 | # Send the input request. |
|
141 | # Send the input request. | |
138 | content = dict(prompt=prompt) |
|
142 | content = dict(prompt=prompt) | |
139 | msg = self.session.msg(u'input_request', content, parent) |
|
143 | msg = self.session.msg(u'input_request', content, parent) | |
140 | self.req_socket.send_json(msg) |
|
144 | self.req_socket.send_json(msg) | |
141 |
|
145 | |||
142 | # Await a response. |
|
146 | # Await a response. | |
143 | reply = self.req_socket.recv_json() |
|
147 | reply = self.req_socket.recv_json() | |
144 | try: |
|
148 | try: | |
145 | value = reply['content']['value'] |
|
149 | value = reply['content']['value'] | |
146 | except: |
|
150 | except: | |
147 | print>>sys.__stderr__, "Got bad raw_input reply: " |
|
151 | print>>sys.__stderr__, "Got bad raw_input reply: " | |
148 | print>>sys.__stderr__, Message(parent) |
|
152 | print>>sys.__stderr__, Message(parent) | |
149 | value = '' |
|
153 | value = '' | |
150 | return value |
|
154 | return value | |
151 |
|
155 | |||
152 | def complete_request(self, ident, parent): |
|
156 | def complete_request(self, ident, parent): | |
153 | matches = {'matches' : self.complete(parent), |
|
157 | matches = {'matches' : self.complete(parent), | |
154 | 'status' : 'ok'} |
|
158 | 'status' : 'ok'} | |
155 | completion_msg = self.session.send(self.reply_socket, 'complete_reply', |
|
159 | completion_msg = self.session.send(self.reply_socket, 'complete_reply', | |
156 | matches, parent, ident) |
|
160 | matches, parent, ident) | |
157 | print >> sys.__stdout__, completion_msg |
|
161 | print >> sys.__stdout__, completion_msg | |
158 |
|
162 | |||
159 | def complete(self, msg): |
|
163 | def complete(self, msg): | |
160 | return self.shell.complete(msg.content.line) |
|
164 | return self.shell.complete(msg.content.line) | |
161 |
|
165 | |||
162 | def object_info_request(self, ident, parent): |
|
166 | def object_info_request(self, ident, parent): | |
163 | context = parent['content']['oname'].split('.') |
|
167 | context = parent['content']['oname'].split('.') | |
164 | object_info = self.object_info(context) |
|
168 | object_info = self.object_info(context) | |
165 | msg = self.session.send(self.reply_socket, 'object_info_reply', |
|
169 | msg = self.session.send(self.reply_socket, 'object_info_reply', | |
166 | object_info, parent, ident) |
|
170 | object_info, parent, ident) | |
167 | print >> sys.__stdout__, msg |
|
171 | print >> sys.__stdout__, msg | |
168 |
|
172 | |||
169 | def object_info(self, context): |
|
173 | def object_info(self, context): | |
170 | symbol, leftover = self.symbol_from_context(context) |
|
174 | symbol, leftover = self.symbol_from_context(context) | |
171 | if symbol is not None and not leftover: |
|
175 | if symbol is not None and not leftover: | |
172 | doc = getattr(symbol, '__doc__', '') |
|
176 | doc = getattr(symbol, '__doc__', '') | |
173 | else: |
|
177 | else: | |
174 | doc = '' |
|
178 | doc = '' | |
175 | object_info = dict(docstring = doc) |
|
179 | object_info = dict(docstring = doc) | |
176 | return object_info |
|
180 | return object_info | |
177 |
|
181 | |||
178 | def symbol_from_context(self, context): |
|
182 | def symbol_from_context(self, context): | |
179 | if not context: |
|
183 | if not context: | |
180 | return None, context |
|
184 | return None, context | |
181 |
|
185 | |||
182 | base_symbol_string = context[0] |
|
186 | base_symbol_string = context[0] | |
183 | symbol = self.shell.user_ns.get(base_symbol_string, None) |
|
187 | symbol = self.shell.user_ns.get(base_symbol_string, None) | |
184 | if symbol is None: |
|
188 | if symbol is None: | |
185 | symbol = __builtin__.__dict__.get(base_symbol_string, None) |
|
189 | symbol = __builtin__.__dict__.get(base_symbol_string, None) | |
186 | if symbol is None: |
|
190 | if symbol is None: | |
187 | return None, context |
|
191 | return None, context | |
188 |
|
192 | |||
189 | context = context[1:] |
|
193 | context = context[1:] | |
190 | for i, name in enumerate(context): |
|
194 | for i, name in enumerate(context): | |
191 | new_symbol = getattr(symbol, name, None) |
|
195 | new_symbol = getattr(symbol, name, None) | |
192 | if new_symbol is None: |
|
196 | if new_symbol is None: | |
193 | return symbol, context[i:] |
|
197 | return symbol, context[i:] | |
194 | else: |
|
198 | else: | |
195 | symbol = new_symbol |
|
199 | symbol = new_symbol | |
196 |
|
200 | |||
197 | return symbol, [] |
|
201 | return symbol, [] | |
198 |
|
202 | |||
199 | def start(self): |
|
203 | def start(self): | |
200 | while True: |
|
204 | while True: | |
201 | ident = self.reply_socket.recv() |
|
205 | ident = self.reply_socket.recv() | |
202 | assert self.reply_socket.rcvmore(), "Missing message part." |
|
206 | assert self.reply_socket.rcvmore(), "Missing message part." | |
203 | msg = self.reply_socket.recv_json() |
|
207 | msg = self.reply_socket.recv_json() | |
204 | omsg = Message(msg) |
|
208 | omsg = Message(msg) | |
205 | print>>sys.__stdout__ |
|
209 | print>>sys.__stdout__ | |
206 | print>>sys.__stdout__, omsg |
|
210 | print>>sys.__stdout__, omsg | |
207 | handler = self.handlers.get(omsg.msg_type, None) |
|
211 | handler = self.handlers.get(omsg.msg_type, None) | |
208 | if handler is None: |
|
212 | if handler is None: | |
209 | print >> sys.__stderr__, "UNKNOWN MESSAGE TYPE:", omsg |
|
213 | print >> sys.__stderr__, "UNKNOWN MESSAGE TYPE:", omsg | |
210 | else: |
|
214 | else: | |
211 | handler(ident, omsg) |
|
215 | handler(ident, omsg) | |
212 |
|
216 | |||
213 | #----------------------------------------------------------------------------- |
|
217 | #----------------------------------------------------------------------------- | |
214 | # Kernel main and launch functions |
|
218 | # Kernel main and launch functions | |
215 | #----------------------------------------------------------------------------- |
|
219 | #----------------------------------------------------------------------------- | |
216 |
|
220 | |||
217 | def bind_port(socket, ip, port): |
|
221 | def bind_port(socket, ip, port): | |
218 | """ Binds the specified ZMQ socket. If the port is less than zero, a random |
|
222 | """ Binds the specified ZMQ socket. If the port is less than zero, a random | |
219 | port is chosen. Returns the port that was bound. |
|
223 | port is chosen. Returns the port that was bound. | |
220 | """ |
|
224 | """ | |
221 | connection = 'tcp://%s' % ip |
|
225 | connection = 'tcp://%s' % ip | |
222 | if port <= 0: |
|
226 | if port <= 0: | |
223 | port = socket.bind_to_random_port(connection) |
|
227 | port = socket.bind_to_random_port(connection) | |
224 | else: |
|
228 | else: | |
225 | connection += ':%i' % port |
|
229 | connection += ':%i' % port | |
226 | socket.bind(connection) |
|
230 | socket.bind(connection) | |
227 | return port |
|
231 | return port | |
228 |
|
232 | |||
229 |
|
233 | |||
230 | def main(): |
|
234 | def main(): | |
231 | """ Main entry point for launching a kernel. |
|
235 | """ Main entry point for launching a kernel. | |
232 | """ |
|
236 | """ | |
233 | # Parse command line arguments. |
|
237 | # Parse command line arguments. | |
234 | parser = ArgumentParser() |
|
238 | parser = ArgumentParser() | |
235 | parser.add_argument('--ip', type=str, default='127.0.0.1', |
|
239 | parser.add_argument('--ip', type=str, default='127.0.0.1', | |
236 | help='set the kernel\'s IP address [default: local]') |
|
240 | help='set the kernel\'s IP address [default: local]') | |
237 | parser.add_argument('--xrep', type=int, metavar='PORT', default=0, |
|
241 | parser.add_argument('--xrep', type=int, metavar='PORT', default=0, | |
238 | help='set the XREP channel port [default: random]') |
|
242 | help='set the XREP channel port [default: random]') | |
239 | parser.add_argument('--pub', type=int, metavar='PORT', default=0, |
|
243 | parser.add_argument('--pub', type=int, metavar='PORT', default=0, | |
240 | help='set the PUB channel port [default: random]') |
|
244 | help='set the PUB channel port [default: random]') | |
241 | parser.add_argument('--req', type=int, metavar='PORT', default=0, |
|
245 | parser.add_argument('--req', type=int, metavar='PORT', default=0, | |
242 | help='set the REQ channel port [default: random]') |
|
246 | help='set the REQ channel port [default: random]') | |
243 | if sys.platform == 'win32': |
|
247 | if sys.platform == 'win32': | |
244 | parser.add_argument('--parent', type=int, metavar='HANDLE', |
|
248 | parser.add_argument('--parent', type=int, metavar='HANDLE', | |
245 | default=0, help='kill this process if the process ' |
|
249 | default=0, help='kill this process if the process ' | |
246 | 'with HANDLE dies') |
|
250 | 'with HANDLE dies') | |
247 | else: |
|
251 | else: | |
248 | parser.add_argument('--parent', action='store_true', |
|
252 | parser.add_argument('--parent', action='store_true', | |
249 | help='kill this process if its parent dies') |
|
253 | help='kill this process if its parent dies') | |
250 | namespace = parser.parse_args() |
|
254 | namespace = parser.parse_args() | |
251 |
|
255 | |||
252 | # Create a context, a session, and the kernel sockets. |
|
256 | # Create a context, a session, and the kernel sockets. | |
253 | print >>sys.__stdout__, "Starting the kernel..." |
|
257 | print >>sys.__stdout__, "Starting the kernel..." | |
254 | context = zmq.Context() |
|
258 | context = zmq.Context() | |
255 | session = Session(username=u'kernel') |
|
259 | session = Session(username=u'kernel') | |
256 |
|
260 | |||
257 | reply_socket = context.socket(zmq.XREP) |
|
261 | reply_socket = context.socket(zmq.XREP) | |
258 | xrep_port = bind_port(reply_socket, namespace.ip, namespace.xrep) |
|
262 | xrep_port = bind_port(reply_socket, namespace.ip, namespace.xrep) | |
259 | print >>sys.__stdout__, "XREP Channel on port", xrep_port |
|
263 | print >>sys.__stdout__, "XREP Channel on port", xrep_port | |
260 |
|
264 | |||
261 | pub_socket = context.socket(zmq.PUB) |
|
265 | pub_socket = context.socket(zmq.PUB) | |
262 | pub_port = bind_port(pub_socket, namespace.ip, namespace.pub) |
|
266 | pub_port = bind_port(pub_socket, namespace.ip, namespace.pub) | |
263 | print >>sys.__stdout__, "PUB Channel on port", pub_port |
|
267 | print >>sys.__stdout__, "PUB Channel on port", pub_port | |
264 |
|
268 | |||
265 | req_socket = context.socket(zmq.XREQ) |
|
269 | req_socket = context.socket(zmq.XREQ) | |
266 | req_port = bind_port(req_socket, namespace.ip, namespace.req) |
|
270 | req_port = bind_port(req_socket, namespace.ip, namespace.req) | |
267 | print >>sys.__stdout__, "REQ Channel on port", req_port |
|
271 | print >>sys.__stdout__, "REQ Channel on port", req_port | |
268 |
|
272 | |||
269 | # Redirect input streams. This needs to be done before the Kernel is done |
|
273 | # Redirect input streams. This needs to be done before the Kernel is done | |
270 | # because currently the Kernel creates a ZMQInteractiveShell, which |
|
274 | # because currently the Kernel creates a ZMQInteractiveShell, which | |
271 | # holds references to sys.stdout and sys.stderr. |
|
275 | # holds references to sys.stdout and sys.stderr. | |
272 | sys.stdout = OutStream(session, pub_socket, u'stdout') |
|
276 | sys.stdout = OutStream(session, pub_socket, u'stdout') | |
273 | sys.stderr = OutStream(session, pub_socket, u'stderr') |
|
277 | sys.stderr = OutStream(session, pub_socket, u'stderr') | |
274 | # Set a displayhook. |
|
|||
275 | sys.displayhook = DisplayHook(session, pub_socket) |
|
|||
276 |
|
278 | |||
277 | # Create the kernel. |
|
279 | # Create the kernel. | |
278 | kernel = Kernel( |
|
280 | kernel = Kernel( | |
279 | session=session, reply_socket=reply_socket, |
|
281 | session=session, reply_socket=reply_socket, | |
280 | pub_socket=pub_socket, req_socket=req_socket |
|
282 | pub_socket=pub_socket, req_socket=req_socket | |
281 | ) |
|
283 | ) | |
282 |
|
284 | |||
283 | # Configure this kernel/process to die on parent termination, if necessary. |
|
285 | # Configure this kernel/process to die on parent termination, if necessary. | |
284 | if namespace.parent: |
|
286 | if namespace.parent: | |
285 | if sys.platform == 'win32': |
|
287 | if sys.platform == 'win32': | |
286 | poller = ExitPollerWindows(namespace.parent) |
|
288 | poller = ExitPollerWindows(namespace.parent) | |
287 | else: |
|
289 | else: | |
288 | poller = ExitPollerUnix() |
|
290 | poller = ExitPollerUnix() | |
289 | poller.start() |
|
291 | poller.start() | |
290 |
|
292 | |||
291 | # Start the kernel mainloop. |
|
293 | # Start the kernel mainloop. | |
292 | kernel.start() |
|
294 | kernel.start() | |
293 |
|
295 | |||
294 |
|
296 | |||
295 | def launch_kernel(xrep_port=0, pub_port=0, req_port=0, independent=False): |
|
297 | def launch_kernel(xrep_port=0, pub_port=0, req_port=0, independent=False): | |
296 | """ Launches a localhost kernel, binding to the specified ports. |
|
298 | """ Launches a localhost kernel, binding to the specified ports. | |
297 |
|
299 | |||
298 | Parameters |
|
300 | Parameters | |
299 | ---------- |
|
301 | ---------- | |
300 | xrep_port : int, optional |
|
302 | xrep_port : int, optional | |
301 | The port to use for XREP channel. |
|
303 | The port to use for XREP channel. | |
302 |
|
304 | |||
303 | pub_port : int, optional |
|
305 | pub_port : int, optional | |
304 | The port to use for the SUB channel. |
|
306 | The port to use for the SUB channel. | |
305 |
|
307 | |||
306 | req_port : int, optional |
|
308 | req_port : int, optional | |
307 | The port to use for the REQ (raw input) channel. |
|
309 | The port to use for the REQ (raw input) channel. | |
308 |
|
310 | |||
309 | independent : bool, optional (default False) |
|
311 | independent : bool, optional (default False) | |
310 | If set, the kernel process is guaranteed to survive if this process |
|
312 | If set, the kernel process is guaranteed to survive if this process | |
311 | dies. If not set, an effort is made to ensure that the kernel is killed |
|
313 | dies. If not set, an effort is made to ensure that the kernel is killed | |
312 | when this process dies. Note that in this case it is still good practice |
|
314 | when this process dies. Note that in this case it is still good practice | |
313 | to kill kernels manually before exiting. |
|
315 | to kill kernels manually before exiting. | |
314 |
|
316 | |||
315 | Returns |
|
317 | Returns | |
316 | ------- |
|
318 | ------- | |
317 | A tuple of form: |
|
319 | A tuple of form: | |
318 | (kernel_process, xrep_port, pub_port, req_port) |
|
320 | (kernel_process, xrep_port, pub_port, req_port) | |
319 | where kernel_process is a Popen object and the ports are integers. |
|
321 | where kernel_process is a Popen object and the ports are integers. | |
320 | """ |
|
322 | """ | |
321 | import socket |
|
323 | import socket | |
322 | from subprocess import Popen |
|
324 | from subprocess import Popen | |
323 |
|
325 | |||
324 | # Find open ports as necessary. |
|
326 | # Find open ports as necessary. | |
325 | ports = [] |
|
327 | ports = [] | |
326 | ports_needed = int(xrep_port <= 0) + int(pub_port <= 0) + int(req_port <= 0) |
|
328 | ports_needed = int(xrep_port <= 0) + int(pub_port <= 0) + int(req_port <= 0) | |
327 | for i in xrange(ports_needed): |
|
329 | for i in xrange(ports_needed): | |
328 | sock = socket.socket() |
|
330 | sock = socket.socket() | |
329 | sock.bind(('', 0)) |
|
331 | sock.bind(('', 0)) | |
330 | ports.append(sock) |
|
332 | ports.append(sock) | |
331 | for i, sock in enumerate(ports): |
|
333 | for i, sock in enumerate(ports): | |
332 | port = sock.getsockname()[1] |
|
334 | port = sock.getsockname()[1] | |
333 | sock.close() |
|
335 | sock.close() | |
334 | ports[i] = port |
|
336 | ports[i] = port | |
335 | if xrep_port <= 0: |
|
337 | if xrep_port <= 0: | |
336 | xrep_port = ports.pop(0) |
|
338 | xrep_port = ports.pop(0) | |
337 | if pub_port <= 0: |
|
339 | if pub_port <= 0: | |
338 | pub_port = ports.pop(0) |
|
340 | pub_port = ports.pop(0) | |
339 | if req_port <= 0: |
|
341 | if req_port <= 0: | |
340 | req_port = ports.pop(0) |
|
342 | req_port = ports.pop(0) | |
341 |
|
343 | |||
342 | # Spawn a kernel. |
|
344 | # Spawn a kernel. | |
343 | command = 'from IPython.zmq.ipkernel import main; main()' |
|
345 | command = 'from IPython.zmq.ipkernel import main; main()' | |
344 | arguments = [ sys.executable, '-c', command, '--xrep', str(xrep_port), |
|
346 | arguments = [ sys.executable, '-c', command, '--xrep', str(xrep_port), | |
345 | '--pub', str(pub_port), '--req', str(req_port) ] |
|
347 | '--pub', str(pub_port), '--req', str(req_port) ] | |
346 | if independent: |
|
348 | if independent: | |
347 | if sys.platform == 'win32': |
|
349 | if sys.platform == 'win32': | |
348 | proc = Popen(['start', '/b'] + arguments, shell=True) |
|
350 | proc = Popen(['start', '/b'] + arguments, shell=True) | |
349 | else: |
|
351 | else: | |
350 | proc = Popen(arguments, preexec_fn=lambda: os.setsid()) |
|
352 | proc = Popen(arguments, preexec_fn=lambda: os.setsid()) | |
351 | else: |
|
353 | else: | |
352 | if sys.platform == 'win32': |
|
354 | if sys.platform == 'win32': | |
353 | from _subprocess import DuplicateHandle, GetCurrentProcess, \ |
|
355 | from _subprocess import DuplicateHandle, GetCurrentProcess, \ | |
354 | DUPLICATE_SAME_ACCESS |
|
356 | DUPLICATE_SAME_ACCESS | |
355 | pid = GetCurrentProcess() |
|
357 | pid = GetCurrentProcess() | |
356 | handle = DuplicateHandle(pid, pid, pid, 0, |
|
358 | handle = DuplicateHandle(pid, pid, pid, 0, | |
357 | True, # Inheritable by new processes. |
|
359 | True, # Inheritable by new processes. | |
358 | DUPLICATE_SAME_ACCESS) |
|
360 | DUPLICATE_SAME_ACCESS) | |
359 | proc = Popen(arguments + ['--parent', str(int(handle))]) |
|
361 | proc = Popen(arguments + ['--parent', str(int(handle))]) | |
360 | else: |
|
362 | else: | |
361 | proc = Popen(arguments + ['--parent']) |
|
363 | proc = Popen(arguments + ['--parent']) | |
362 |
|
364 | |||
363 | return proc, xrep_port, pub_port, req_port |
|
365 | return proc, xrep_port, pub_port, req_port | |
364 |
|
366 | |||
365 |
|
367 | |||
366 | if __name__ == '__main__': |
|
368 | if __name__ == '__main__': | |
367 | main() |
|
369 | main() |
@@ -1,31 +1,72 b'' | |||||
1 | import sys |
|
1 | import sys | |
2 | from subprocess import Popen, PIPE |
|
2 | from subprocess import Popen, PIPE | |
3 | from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC |
|
3 | ||
|
4 | from IPython.core.interactiveshell import ( | |||
|
5 | InteractiveShell, InteractiveShellABC | |||
|
6 | ) | |||
|
7 | from IPython.core.displayhook import DisplayHook | |||
|
8 | from IPython.utils.traitlets import Instance, Type, Dict | |||
|
9 | from IPython.zmq.session import extract_header | |||
|
10 | ||||
|
11 | ||||
|
12 | class ZMQDisplayTrap(DisplayHook): | |||
|
13 | ||||
|
14 | session = Instance('IPython.zmq.session.Session') | |||
|
15 | pub_socket = Instance('zmq.Socket') | |||
|
16 | parent_header = Dict({}) | |||
|
17 | ||||
|
18 | def set_parent(self, parent): | |||
|
19 | """Set the parent for outbound messages.""" | |||
|
20 | self.parent_header = extract_header(parent) | |||
|
21 | ||||
|
22 | def start_displayhook(self): | |||
|
23 | self.msg = self.session.msg(u'pyout', {}, parent=self.parent_header) | |||
|
24 | ||||
|
25 | def write_output_prompt(self): | |||
|
26 | """Write the output prompt.""" | |||
|
27 | if self.do_full_cache: | |||
|
28 | self.msg['content']['output_sep'] = self.output_sep | |||
|
29 | self.msg['content']['prompt_string'] = str(self.prompt_out) | |||
|
30 | self.msg['content']['prompt_number'] = self.prompt_count | |||
|
31 | self.msg['content']['output_sep2'] = self.output_sep2 | |||
|
32 | ||||
|
33 | def write_result_repr(self, result_repr): | |||
|
34 | self.msg['content']['data'] = result_repr | |||
|
35 | ||||
|
36 | def finish_displayhook(self): | |||
|
37 | """Finish up all displayhook activities.""" | |||
|
38 | self.pub_socket.send_json(self.msg) | |||
|
39 | self.msg = None | |||
4 |
|
40 | |||
5 |
|
41 | |||
6 | class ZMQInteractiveShell(InteractiveShell): |
|
42 | class ZMQInteractiveShell(InteractiveShell): | |
7 | """A subclass of InteractiveShell for ZMQ.""" |
|
43 | """A subclass of InteractiveShell for ZMQ.""" | |
8 |
|
44 | |||
|
45 | displayhook_class = Type(ZMQDisplayTrap) | |||
|
46 | ||||
9 | def system(self, cmd): |
|
47 | def system(self, cmd): | |
10 | cmd = self.var_expand(cmd, depth=2) |
|
48 | cmd = self.var_expand(cmd, depth=2) | |
11 | sys.stdout.flush() |
|
49 | sys.stdout.flush() | |
12 | sys.stderr.flush() |
|
50 | sys.stderr.flush() | |
13 | p = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE) |
|
51 | p = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE) | |
14 | for line in p.stdout.read().split('\n'): |
|
52 | for line in p.stdout.read().split('\n'): | |
15 | if len(line) > 0: |
|
53 | if len(line) > 0: | |
16 | print line |
|
54 | print line | |
17 | for line in p.stderr.read().split('\n'): |
|
55 | for line in p.stderr.read().split('\n'): | |
18 | if len(line) > 0: |
|
56 | if len(line) > 0: | |
19 | print line |
|
57 | print line | |
20 | p.wait() |
|
58 | p.wait() | |
21 |
|
59 | |||
22 | def init_io(self): |
|
60 | def init_io(self): | |
23 | # This will just use sys.stdout and sys.stderr. If you want to |
|
61 | # This will just use sys.stdout and sys.stderr. If you want to | |
24 | # override sys.stdout and sys.stderr themselves, you need to do that |
|
62 | # override sys.stdout and sys.stderr themselves, you need to do that | |
25 | # *before* instantiating this class, because Term holds onto |
|
63 | # *before* instantiating this class, because Term holds onto | |
26 | # references to the underlying streams. |
|
64 | # references to the underlying streams. | |
27 | import IPython.utils.io |
|
65 | import IPython.utils.io | |
28 | Term = IPython.utils.io.IOTerm() |
|
66 | Term = IPython.utils.io.IOTerm() | |
29 | IPython.utils.io.Term = Term |
|
67 | IPython.utils.io.Term = Term | |
30 |
|
68 | |||
31 | InteractiveShellABC.register(ZMQInteractiveShell) |
|
69 | InteractiveShellABC.register(ZMQInteractiveShell) | |
|
70 | ||||
|
71 | ||||
|
72 |
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