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@@ -1,321 +1,326 b'' | |||||
1 | # encoding: utf-8 |
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1 | # encoding: utf-8 | |
2 | """ |
|
2 | """ | |
3 | An embedded IPython shell. |
|
3 | An embedded IPython shell. | |
4 | """ |
|
4 | """ | |
5 | # Copyright (c) IPython Development Team. |
|
5 | # Copyright (c) IPython Development Team. | |
6 | # Distributed under the terms of the Modified BSD License. |
|
6 | # Distributed under the terms of the Modified BSD License. | |
7 |
|
7 | |||
8 | from __future__ import with_statement |
|
8 | from __future__ import with_statement | |
9 | from __future__ import print_function |
|
9 | from __future__ import print_function | |
10 |
|
10 | |||
11 | import sys |
|
11 | import sys | |
12 | import warnings |
|
12 | import warnings | |
13 |
|
13 | |||
14 | from IPython.core import ultratb, compilerop |
|
14 | from IPython.core import ultratb, compilerop | |
15 | from IPython.core.magic import Magics, magics_class, line_magic |
|
15 | from IPython.core.magic import Magics, magics_class, line_magic | |
16 | from IPython.core.interactiveshell import DummyMod, InteractiveShell |
|
16 | from IPython.core.interactiveshell import DummyMod, InteractiveShell | |
17 | from IPython.terminal.interactiveshell import TerminalInteractiveShell |
|
17 | from IPython.terminal.interactiveshell import TerminalInteractiveShell | |
18 | from IPython.terminal.ipapp import load_default_config |
|
18 | from IPython.terminal.ipapp import load_default_config | |
19 |
|
19 | |||
20 | from traitlets import Bool, CBool, Unicode |
|
20 | from traitlets import Bool, CBool, Unicode | |
21 | from IPython.utils.io import ask_yes_no |
|
21 | from IPython.utils.io import ask_yes_no | |
22 |
|
22 | |||
23 | class KillEmbeded(Exception):pass |
|
23 | class KillEmbeded(Exception):pass | |
24 |
|
24 | |||
25 | # This is an additional magic that is exposed in embedded shells. |
|
25 | # This is an additional magic that is exposed in embedded shells. | |
26 | @magics_class |
|
26 | @magics_class | |
27 | class EmbeddedMagics(Magics): |
|
27 | class EmbeddedMagics(Magics): | |
28 |
|
28 | |||
29 | @line_magic |
|
29 | @line_magic | |
30 | def kill_embedded(self, parameter_s=''): |
|
30 | def kill_embedded(self, parameter_s=''): | |
31 | """%kill_embedded : deactivate for good the current embedded IPython. |
|
31 | """%kill_embedded : deactivate for good the current embedded IPython. | |
32 |
|
32 | |||
33 | This function (after asking for confirmation) sets an internal flag so |
|
33 | This function (after asking for confirmation) sets an internal flag so | |
34 | that an embedded IPython will never activate again. This is useful to |
|
34 | that an embedded IPython will never activate again. This is useful to | |
35 | permanently disable a shell that is being called inside a loop: once |
|
35 | permanently disable a shell that is being called inside a loop: once | |
36 | you've figured out what you needed from it, you may then kill it and |
|
36 | you've figured out what you needed from it, you may then kill it and | |
37 | the program will then continue to run without the interactive shell |
|
37 | the program will then continue to run without the interactive shell | |
38 | interfering again. |
|
38 | interfering again. | |
39 | """ |
|
39 | """ | |
40 |
|
40 | |||
41 | kill = ask_yes_no("Are you sure you want to kill this embedded instance? [y/N] ",'n') |
|
41 | kill = ask_yes_no("Are you sure you want to kill this embedded instance? [y/N] ",'n') | |
42 | if kill: |
|
42 | if kill: | |
43 | self.shell.embedded_active = False |
|
43 | self.shell.embedded_active = False | |
44 | print ("This embedded IPython will not reactivate anymore " |
|
44 | print ("This embedded IPython will not reactivate anymore " | |
45 | "once you exit.") |
|
45 | "once you exit.") | |
46 |
|
46 | |||
47 |
|
47 | |||
48 | @line_magic |
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48 | @line_magic | |
49 | def exit_raise(self, parameter_s=''): |
|
49 | def exit_raise(self, parameter_s=''): | |
50 | """%exit_raise Make the current embedded kernel exit and raise and exception. |
|
50 | """%exit_raise Make the current embedded kernel exit and raise and exception. | |
51 |
|
51 | |||
52 | This function sets an internal flag so that an embedded IPython will |
|
52 | This function sets an internal flag so that an embedded IPython will | |
53 | raise a `IPython.terminal.embed.KillEmbeded` Exception on exit, and then exit the current I. This is |
|
53 | raise a `IPython.terminal.embed.KillEmbeded` Exception on exit, and then exit the current I. This is | |
54 | useful to permanently exit a loop that create IPython embed instance. |
|
54 | useful to permanently exit a loop that create IPython embed instance. | |
55 | """ |
|
55 | """ | |
56 |
|
56 | |||
57 | self.shell.should_raise = True |
|
57 | self.shell.should_raise = True | |
58 | self.shell.ask_exit() |
|
58 | self.shell.ask_exit() | |
59 |
|
59 | |||
60 |
|
60 | |||
61 |
|
61 | |||
62 | class InteractiveShellEmbed(TerminalInteractiveShell): |
|
62 | class InteractiveShellEmbed(TerminalInteractiveShell): | |
63 |
|
63 | |||
64 | dummy_mode = Bool(False) |
|
64 | dummy_mode = Bool(False) | |
65 | exit_msg = Unicode('') |
|
65 | exit_msg = Unicode('') | |
66 | embedded = CBool(True) |
|
66 | embedded = CBool(True) | |
67 | should_raise = CBool(False) |
|
67 | should_raise = CBool(False) | |
68 | # Like the base class display_banner is not configurable, but here it |
|
68 | # Like the base class display_banner is not configurable, but here it | |
69 | # is True by default. |
|
69 | # is True by default. | |
70 | display_banner = CBool(True) |
|
70 | display_banner = CBool(True) | |
71 | exit_msg = Unicode() |
|
71 | exit_msg = Unicode() | |
72 |
|
72 | |||
|
73 | # When embedding, by default we don't change the terminal title | |||
|
74 | term_title = Bool(False, | |||
|
75 | help="Automatically set the terminal title" | |||
|
76 | ).tag(config=True) | |||
|
77 | ||||
73 | _inactive_locations = set() |
|
78 | _inactive_locations = set() | |
74 |
|
79 | |||
75 | @property |
|
80 | @property | |
76 | def embedded_active(self): |
|
81 | def embedded_active(self): | |
77 | return self._call_location_id not in InteractiveShellEmbed._inactive_locations |
|
82 | return self._call_location_id not in InteractiveShellEmbed._inactive_locations | |
78 |
|
83 | |||
79 | @embedded_active.setter |
|
84 | @embedded_active.setter | |
80 | def embedded_active(self, value): |
|
85 | def embedded_active(self, value): | |
81 | if value : |
|
86 | if value : | |
82 | if self._call_location_id in InteractiveShellEmbed._inactive_locations: |
|
87 | if self._call_location_id in InteractiveShellEmbed._inactive_locations: | |
83 | InteractiveShellEmbed._inactive_locations.remove(self._call_location_id) |
|
88 | InteractiveShellEmbed._inactive_locations.remove(self._call_location_id) | |
84 | else: |
|
89 | else: | |
85 | InteractiveShellEmbed._inactive_locations.add(self._call_location_id) |
|
90 | InteractiveShellEmbed._inactive_locations.add(self._call_location_id) | |
86 |
|
91 | |||
87 | def __init__(self, **kw): |
|
92 | def __init__(self, **kw): | |
88 |
|
93 | |||
89 |
|
94 | |||
90 | if kw.get('user_global_ns', None) is not None: |
|
95 | if kw.get('user_global_ns', None) is not None: | |
91 | raise DeprecationWarning("Key word argument `user_global_ns` has been replaced by `user_module` since IPython 4.0.") |
|
96 | raise DeprecationWarning("Key word argument `user_global_ns` has been replaced by `user_module` since IPython 4.0.") | |
92 |
|
97 | |||
93 | self._call_location_id = kw.pop('_call_location_id', None) |
|
98 | self._call_location_id = kw.pop('_call_location_id', None) | |
94 |
|
99 | |||
95 | super(InteractiveShellEmbed,self).__init__(**kw) |
|
100 | super(InteractiveShellEmbed,self).__init__(**kw) | |
96 |
|
101 | |||
97 | if not self._call_location_id: |
|
102 | if not self._call_location_id: | |
98 | frame = sys._getframe(1) |
|
103 | frame = sys._getframe(1) | |
99 | self._call_location_id = '%s:%s' % (frame.f_code.co_filename, frame.f_lineno) |
|
104 | self._call_location_id = '%s:%s' % (frame.f_code.co_filename, frame.f_lineno) | |
100 | # don't use the ipython crash handler so that user exceptions aren't |
|
105 | # don't use the ipython crash handler so that user exceptions aren't | |
101 | # trapped |
|
106 | # trapped | |
102 | sys.excepthook = ultratb.FormattedTB(color_scheme=self.colors, |
|
107 | sys.excepthook = ultratb.FormattedTB(color_scheme=self.colors, | |
103 | mode=self.xmode, |
|
108 | mode=self.xmode, | |
104 | call_pdb=self.pdb) |
|
109 | call_pdb=self.pdb) | |
105 |
|
110 | |||
106 | def init_sys_modules(self): |
|
111 | def init_sys_modules(self): | |
107 | pass |
|
112 | pass | |
108 |
|
113 | |||
109 | def init_magics(self): |
|
114 | def init_magics(self): | |
110 | super(InteractiveShellEmbed, self).init_magics() |
|
115 | super(InteractiveShellEmbed, self).init_magics() | |
111 | self.register_magics(EmbeddedMagics) |
|
116 | self.register_magics(EmbeddedMagics) | |
112 |
|
117 | |||
113 | def __call__(self, header='', local_ns=None, module=None, dummy=None, |
|
118 | def __call__(self, header='', local_ns=None, module=None, dummy=None, | |
114 | stack_depth=1, global_ns=None, compile_flags=None): |
|
119 | stack_depth=1, global_ns=None, compile_flags=None): | |
115 | """Activate the interactive interpreter. |
|
120 | """Activate the interactive interpreter. | |
116 |
|
121 | |||
117 | __call__(self,header='',local_ns=None,module=None,dummy=None) -> Start |
|
122 | __call__(self,header='',local_ns=None,module=None,dummy=None) -> Start | |
118 | the interpreter shell with the given local and global namespaces, and |
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123 | the interpreter shell with the given local and global namespaces, and | |
119 | optionally print a header string at startup. |
|
124 | optionally print a header string at startup. | |
120 |
|
125 | |||
121 | The shell can be globally activated/deactivated using the |
|
126 | The shell can be globally activated/deactivated using the | |
122 | dummy_mode attribute. This allows you to turn off a shell used |
|
127 | dummy_mode attribute. This allows you to turn off a shell used | |
123 | for debugging globally. |
|
128 | for debugging globally. | |
124 |
|
129 | |||
125 | However, *each* time you call the shell you can override the current |
|
130 | However, *each* time you call the shell you can override the current | |
126 | state of dummy_mode with the optional keyword parameter 'dummy'. For |
|
131 | state of dummy_mode with the optional keyword parameter 'dummy'. For | |
127 | example, if you set dummy mode on with IPShell.dummy_mode = True, you |
|
132 | example, if you set dummy mode on with IPShell.dummy_mode = True, you | |
128 | can still have a specific call work by making it as IPShell(dummy=False). |
|
133 | can still have a specific call work by making it as IPShell(dummy=False). | |
129 | """ |
|
134 | """ | |
130 |
|
135 | |||
131 | # If the user has turned it off, go away |
|
136 | # If the user has turned it off, go away | |
132 | if not self.embedded_active: |
|
137 | if not self.embedded_active: | |
133 | return |
|
138 | return | |
134 |
|
139 | |||
135 | # Normal exits from interactive mode set this flag, so the shell can't |
|
140 | # Normal exits from interactive mode set this flag, so the shell can't | |
136 | # re-enter (it checks this variable at the start of interactive mode). |
|
141 | # re-enter (it checks this variable at the start of interactive mode). | |
137 | self.exit_now = False |
|
142 | self.exit_now = False | |
138 |
|
143 | |||
139 | # Allow the dummy parameter to override the global __dummy_mode |
|
144 | # Allow the dummy parameter to override the global __dummy_mode | |
140 | if dummy or (dummy != 0 and self.dummy_mode): |
|
145 | if dummy or (dummy != 0 and self.dummy_mode): | |
141 | return |
|
146 | return | |
142 |
|
147 | |||
143 | # self.banner is auto computed |
|
148 | # self.banner is auto computed | |
144 | if header: |
|
149 | if header: | |
145 | self.old_banner2 = self.banner2 |
|
150 | self.old_banner2 = self.banner2 | |
146 | self.banner2 = self.banner2 + '\n' + header + '\n' |
|
151 | self.banner2 = self.banner2 + '\n' + header + '\n' | |
147 | else: |
|
152 | else: | |
148 | self.old_banner2 = '' |
|
153 | self.old_banner2 = '' | |
149 |
|
154 | |||
150 | if self.display_banner: |
|
155 | if self.display_banner: | |
151 | self.show_banner() |
|
156 | self.show_banner() | |
152 |
|
157 | |||
153 | # Call the embedding code with a stack depth of 1 so it can skip over |
|
158 | # Call the embedding code with a stack depth of 1 so it can skip over | |
154 | # our call and get the original caller's namespaces. |
|
159 | # our call and get the original caller's namespaces. | |
155 | self.mainloop(local_ns, module, stack_depth=stack_depth, |
|
160 | self.mainloop(local_ns, module, stack_depth=stack_depth, | |
156 | global_ns=global_ns, compile_flags=compile_flags) |
|
161 | global_ns=global_ns, compile_flags=compile_flags) | |
157 |
|
162 | |||
158 | self.banner2 = self.old_banner2 |
|
163 | self.banner2 = self.old_banner2 | |
159 |
|
164 | |||
160 | if self.exit_msg is not None: |
|
165 | if self.exit_msg is not None: | |
161 | print(self.exit_msg) |
|
166 | print(self.exit_msg) | |
162 |
|
167 | |||
163 | if self.should_raise: |
|
168 | if self.should_raise: | |
164 | raise KillEmbeded('Embedded IPython raising error, as user requested.') |
|
169 | raise KillEmbeded('Embedded IPython raising error, as user requested.') | |
165 |
|
170 | |||
166 |
|
171 | |||
167 | def mainloop(self, local_ns=None, module=None, stack_depth=0, |
|
172 | def mainloop(self, local_ns=None, module=None, stack_depth=0, | |
168 | display_banner=None, global_ns=None, compile_flags=None): |
|
173 | display_banner=None, global_ns=None, compile_flags=None): | |
169 | """Embeds IPython into a running python program. |
|
174 | """Embeds IPython into a running python program. | |
170 |
|
175 | |||
171 | Parameters |
|
176 | Parameters | |
172 | ---------- |
|
177 | ---------- | |
173 |
|
178 | |||
174 | local_ns, module |
|
179 | local_ns, module | |
175 | Working local namespace (a dict) and module (a module or similar |
|
180 | Working local namespace (a dict) and module (a module or similar | |
176 | object). If given as None, they are automatically taken from the scope |
|
181 | object). If given as None, they are automatically taken from the scope | |
177 | where the shell was called, so that program variables become visible. |
|
182 | where the shell was called, so that program variables become visible. | |
178 |
|
183 | |||
179 | stack_depth : int |
|
184 | stack_depth : int | |
180 | How many levels in the stack to go to looking for namespaces (when |
|
185 | How many levels in the stack to go to looking for namespaces (when | |
181 | local_ns or module is None). This allows an intermediate caller to |
|
186 | local_ns or module is None). This allows an intermediate caller to | |
182 | make sure that this function gets the namespace from the intended |
|
187 | make sure that this function gets the namespace from the intended | |
183 | level in the stack. By default (0) it will get its locals and globals |
|
188 | level in the stack. By default (0) it will get its locals and globals | |
184 | from the immediate caller. |
|
189 | from the immediate caller. | |
185 |
|
190 | |||
186 | compile_flags |
|
191 | compile_flags | |
187 | A bit field identifying the __future__ features |
|
192 | A bit field identifying the __future__ features | |
188 | that are enabled, as passed to the builtin :func:`compile` function. |
|
193 | that are enabled, as passed to the builtin :func:`compile` function. | |
189 | If given as None, they are automatically taken from the scope where |
|
194 | If given as None, they are automatically taken from the scope where | |
190 | the shell was called. |
|
195 | the shell was called. | |
191 |
|
196 | |||
192 | """ |
|
197 | """ | |
193 |
|
198 | |||
194 | if (global_ns is not None) and (module is None): |
|
199 | if (global_ns is not None) and (module is None): | |
195 | raise DeprecationWarning("'global_ns' keyword argument is deprecated, and has been removed in IPython 5.0 use `module` keyword argument instead.") |
|
200 | raise DeprecationWarning("'global_ns' keyword argument is deprecated, and has been removed in IPython 5.0 use `module` keyword argument instead.") | |
196 |
|
201 | |||
197 | if (display_banner is not None): |
|
202 | if (display_banner is not None): | |
198 | warnings.warn("The display_banner parameter is deprecated since IPython 4.0", DeprecationWarning) |
|
203 | warnings.warn("The display_banner parameter is deprecated since IPython 4.0", DeprecationWarning) | |
199 |
|
204 | |||
200 | # Get locals and globals from caller |
|
205 | # Get locals and globals from caller | |
201 | if ((local_ns is None or module is None or compile_flags is None) |
|
206 | if ((local_ns is None or module is None or compile_flags is None) | |
202 | and self.default_user_namespaces): |
|
207 | and self.default_user_namespaces): | |
203 | call_frame = sys._getframe(stack_depth).f_back |
|
208 | call_frame = sys._getframe(stack_depth).f_back | |
204 |
|
209 | |||
205 | if local_ns is None: |
|
210 | if local_ns is None: | |
206 | local_ns = call_frame.f_locals |
|
211 | local_ns = call_frame.f_locals | |
207 | if module is None: |
|
212 | if module is None: | |
208 | global_ns = call_frame.f_globals |
|
213 | global_ns = call_frame.f_globals | |
209 | try: |
|
214 | try: | |
210 | module = sys.modules[global_ns['__name__']] |
|
215 | module = sys.modules[global_ns['__name__']] | |
211 | except KeyError: |
|
216 | except KeyError: | |
212 | warnings.warn("Failed to get module %s" % \ |
|
217 | warnings.warn("Failed to get module %s" % \ | |
213 | global_ns.get('__name__', 'unknown module') |
|
218 | global_ns.get('__name__', 'unknown module') | |
214 | ) |
|
219 | ) | |
215 | module = DummyMod() |
|
220 | module = DummyMod() | |
216 | module.__dict__ = global_ns |
|
221 | module.__dict__ = global_ns | |
217 | if compile_flags is None: |
|
222 | if compile_flags is None: | |
218 | compile_flags = (call_frame.f_code.co_flags & |
|
223 | compile_flags = (call_frame.f_code.co_flags & | |
219 | compilerop.PyCF_MASK) |
|
224 | compilerop.PyCF_MASK) | |
220 |
|
225 | |||
221 | # Save original namespace and module so we can restore them after |
|
226 | # Save original namespace and module so we can restore them after | |
222 | # embedding; otherwise the shell doesn't shut down correctly. |
|
227 | # embedding; otherwise the shell doesn't shut down correctly. | |
223 | orig_user_module = self.user_module |
|
228 | orig_user_module = self.user_module | |
224 | orig_user_ns = self.user_ns |
|
229 | orig_user_ns = self.user_ns | |
225 | orig_compile_flags = self.compile.flags |
|
230 | orig_compile_flags = self.compile.flags | |
226 |
|
231 | |||
227 | # Update namespaces and fire up interpreter |
|
232 | # Update namespaces and fire up interpreter | |
228 |
|
233 | |||
229 | # The global one is easy, we can just throw it in |
|
234 | # The global one is easy, we can just throw it in | |
230 | if module is not None: |
|
235 | if module is not None: | |
231 | self.user_module = module |
|
236 | self.user_module = module | |
232 |
|
237 | |||
233 | # But the user/local one is tricky: ipython needs it to store internal |
|
238 | # But the user/local one is tricky: ipython needs it to store internal | |
234 | # data, but we also need the locals. We'll throw our hidden variables |
|
239 | # data, but we also need the locals. We'll throw our hidden variables | |
235 | # like _ih and get_ipython() into the local namespace, but delete them |
|
240 | # like _ih and get_ipython() into the local namespace, but delete them | |
236 | # later. |
|
241 | # later. | |
237 | if local_ns is not None: |
|
242 | if local_ns is not None: | |
238 | reentrant_local_ns = {k: v for (k, v) in local_ns.items() if k not in self.user_ns_hidden.keys()} |
|
243 | reentrant_local_ns = {k: v for (k, v) in local_ns.items() if k not in self.user_ns_hidden.keys()} | |
239 | self.user_ns = reentrant_local_ns |
|
244 | self.user_ns = reentrant_local_ns | |
240 | self.init_user_ns() |
|
245 | self.init_user_ns() | |
241 |
|
246 | |||
242 | # Compiler flags |
|
247 | # Compiler flags | |
243 | if compile_flags is not None: |
|
248 | if compile_flags is not None: | |
244 | self.compile.flags = compile_flags |
|
249 | self.compile.flags = compile_flags | |
245 |
|
250 | |||
246 | # make sure the tab-completer has the correct frame information, so it |
|
251 | # make sure the tab-completer has the correct frame information, so it | |
247 | # actually completes using the frame's locals/globals |
|
252 | # actually completes using the frame's locals/globals | |
248 | self.set_completer_frame() |
|
253 | self.set_completer_frame() | |
249 |
|
254 | |||
250 | with self.builtin_trap, self.display_trap: |
|
255 | with self.builtin_trap, self.display_trap: | |
251 | self.interact() |
|
256 | self.interact() | |
252 |
|
257 | |||
253 | # now, purge out the local namespace of IPython's hidden variables. |
|
258 | # now, purge out the local namespace of IPython's hidden variables. | |
254 | if local_ns is not None: |
|
259 | if local_ns is not None: | |
255 | local_ns.update({k: v for (k, v) in self.user_ns.items() if k not in self.user_ns_hidden.keys()}) |
|
260 | local_ns.update({k: v for (k, v) in self.user_ns.items() if k not in self.user_ns_hidden.keys()}) | |
256 |
|
261 | |||
257 |
|
262 | |||
258 | # Restore original namespace so shell can shut down when we exit. |
|
263 | # Restore original namespace so shell can shut down when we exit. | |
259 | self.user_module = orig_user_module |
|
264 | self.user_module = orig_user_module | |
260 | self.user_ns = orig_user_ns |
|
265 | self.user_ns = orig_user_ns | |
261 | self.compile.flags = orig_compile_flags |
|
266 | self.compile.flags = orig_compile_flags | |
262 |
|
267 | |||
263 |
|
268 | |||
264 | def embed(**kwargs): |
|
269 | def embed(**kwargs): | |
265 | """Call this to embed IPython at the current point in your program. |
|
270 | """Call this to embed IPython at the current point in your program. | |
266 |
|
271 | |||
267 | The first invocation of this will create an :class:`InteractiveShellEmbed` |
|
272 | The first invocation of this will create an :class:`InteractiveShellEmbed` | |
268 | instance and then call it. Consecutive calls just call the already |
|
273 | instance and then call it. Consecutive calls just call the already | |
269 | created instance. |
|
274 | created instance. | |
270 |
|
275 | |||
271 | If you don't want the kernel to initialize the namespace |
|
276 | If you don't want the kernel to initialize the namespace | |
272 | from the scope of the surrounding function, |
|
277 | from the scope of the surrounding function, | |
273 | and/or you want to load full IPython configuration, |
|
278 | and/or you want to load full IPython configuration, | |
274 | you probably want `IPython.start_ipython()` instead. |
|
279 | you probably want `IPython.start_ipython()` instead. | |
275 |
|
280 | |||
276 | Here is a simple example:: |
|
281 | Here is a simple example:: | |
277 |
|
282 | |||
278 | from IPython import embed |
|
283 | from IPython import embed | |
279 | a = 10 |
|
284 | a = 10 | |
280 | b = 20 |
|
285 | b = 20 | |
281 | embed(header='First time') |
|
286 | embed(header='First time') | |
282 | c = 30 |
|
287 | c = 30 | |
283 | d = 40 |
|
288 | d = 40 | |
284 | embed() |
|
289 | embed() | |
285 |
|
290 | |||
286 | Full customization can be done by passing a :class:`Config` in as the |
|
291 | Full customization can be done by passing a :class:`Config` in as the | |
287 | config argument. |
|
292 | config argument. | |
288 | """ |
|
293 | """ | |
289 | config = kwargs.get('config') |
|
294 | config = kwargs.get('config') | |
290 | header = kwargs.pop('header', u'') |
|
295 | header = kwargs.pop('header', u'') | |
291 | compile_flags = kwargs.pop('compile_flags', None) |
|
296 | compile_flags = kwargs.pop('compile_flags', None) | |
292 | if config is None: |
|
297 | if config is None: | |
293 | config = load_default_config() |
|
298 | config = load_default_config() | |
294 | config.InteractiveShellEmbed = config.TerminalInteractiveShell |
|
299 | config.InteractiveShellEmbed = config.TerminalInteractiveShell | |
295 | kwargs['config'] = config |
|
300 | kwargs['config'] = config | |
296 | #save ps1/ps2 if defined |
|
301 | #save ps1/ps2 if defined | |
297 | ps1 = None |
|
302 | ps1 = None | |
298 | ps2 = None |
|
303 | ps2 = None | |
299 | try: |
|
304 | try: | |
300 | ps1 = sys.ps1 |
|
305 | ps1 = sys.ps1 | |
301 | ps2 = sys.ps2 |
|
306 | ps2 = sys.ps2 | |
302 | except AttributeError: |
|
307 | except AttributeError: | |
303 | pass |
|
308 | pass | |
304 | #save previous instance |
|
309 | #save previous instance | |
305 | saved_shell_instance = InteractiveShell._instance |
|
310 | saved_shell_instance = InteractiveShell._instance | |
306 | if saved_shell_instance is not None: |
|
311 | if saved_shell_instance is not None: | |
307 | cls = type(saved_shell_instance) |
|
312 | cls = type(saved_shell_instance) | |
308 | cls.clear_instance() |
|
313 | cls.clear_instance() | |
309 | frame = sys._getframe(1) |
|
314 | frame = sys._getframe(1) | |
310 | shell = InteractiveShellEmbed.instance(_call_location_id='%s:%s' % (frame.f_code.co_filename, frame.f_lineno), **kwargs) |
|
315 | shell = InteractiveShellEmbed.instance(_call_location_id='%s:%s' % (frame.f_code.co_filename, frame.f_lineno), **kwargs) | |
311 | shell(header=header, stack_depth=2, compile_flags=compile_flags) |
|
316 | shell(header=header, stack_depth=2, compile_flags=compile_flags) | |
312 | InteractiveShellEmbed.clear_instance() |
|
317 | InteractiveShellEmbed.clear_instance() | |
313 | #restore previous instance |
|
318 | #restore previous instance | |
314 | if saved_shell_instance is not None: |
|
319 | if saved_shell_instance is not None: | |
315 | cls = type(saved_shell_instance) |
|
320 | cls = type(saved_shell_instance) | |
316 | cls.clear_instance() |
|
321 | cls.clear_instance() | |
317 | for subclass in cls._walk_mro(): |
|
322 | for subclass in cls._walk_mro(): | |
318 | subclass._instance = saved_shell_instance |
|
323 | subclass._instance = saved_shell_instance | |
319 | if ps1 is not None: |
|
324 | if ps1 is not None: | |
320 | sys.ps1 = ps1 |
|
325 | sys.ps1 = ps1 | |
321 | sys.ps2 = ps2 |
|
326 | sys.ps2 = ps2 |
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