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@@ -1,3928 +1,3928 b'' | |||||
1 | # -*- coding: utf-8 -*- |
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1 | # -*- coding: utf-8 -*- | |
2 | """Main IPython class.""" |
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2 | """Main IPython class.""" | |
3 |
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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) 2008-2011 The IPython Development Team |
|
7 | # Copyright (C) 2008-2011 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 | #----------------------------------------------------------------------------- |
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11 | #----------------------------------------------------------------------------- | |
12 |
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12 | |||
13 |
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13 | |||
14 | import abc |
|
14 | import abc | |
15 | import ast |
|
15 | import ast | |
16 | import atexit |
|
16 | import atexit | |
17 | import bdb |
|
17 | import bdb | |
18 | import builtins as builtin_mod |
|
18 | import builtins as builtin_mod | |
19 | import functools |
|
19 | import functools | |
20 | import inspect |
|
20 | import inspect | |
21 | import os |
|
21 | import os | |
22 | import re |
|
22 | import re | |
23 | import runpy |
|
23 | import runpy | |
24 | import subprocess |
|
24 | import subprocess | |
25 | import sys |
|
25 | import sys | |
26 | import tempfile |
|
26 | import tempfile | |
27 | import traceback |
|
27 | import traceback | |
28 | import types |
|
28 | import types | |
29 | import warnings |
|
29 | import warnings | |
30 | from ast import stmt |
|
30 | from ast import stmt | |
31 | from io import open as io_open |
|
31 | from io import open as io_open | |
32 | from logging import error |
|
32 | from logging import error | |
33 | from pathlib import Path |
|
33 | from pathlib import Path | |
34 | from typing import Callable |
|
34 | from typing import Callable | |
35 | from typing import List as ListType, Dict as DictType, Any as AnyType |
|
35 | from typing import List as ListType, Dict as DictType, Any as AnyType | |
36 | from typing import Optional, Sequence, Tuple |
|
36 | from typing import Optional, Sequence, Tuple | |
37 | from warnings import warn |
|
37 | from warnings import warn | |
38 |
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38 | |||
39 | from pickleshare import PickleShareDB |
|
39 | from pickleshare import PickleShareDB | |
40 | from tempfile import TemporaryDirectory |
|
40 | from tempfile import TemporaryDirectory | |
41 | from traitlets import ( |
|
41 | from traitlets import ( | |
42 | Any, |
|
42 | Any, | |
43 | Bool, |
|
43 | Bool, | |
44 | CaselessStrEnum, |
|
44 | CaselessStrEnum, | |
45 | Dict, |
|
45 | Dict, | |
46 | Enum, |
|
46 | Enum, | |
47 | Instance, |
|
47 | Instance, | |
48 | Integer, |
|
48 | Integer, | |
49 | List, |
|
49 | List, | |
50 | Type, |
|
50 | Type, | |
51 | Unicode, |
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51 | Unicode, | |
52 | default, |
|
52 | default, | |
53 | observe, |
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53 | observe, | |
54 | validate, |
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54 | validate, | |
55 | ) |
|
55 | ) | |
56 | from traitlets.config.configurable import SingletonConfigurable |
|
56 | from traitlets.config.configurable import SingletonConfigurable | |
57 | from traitlets.utils.importstring import import_item |
|
57 | from traitlets.utils.importstring import import_item | |
58 |
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58 | |||
59 | import IPython.core.hooks |
|
59 | import IPython.core.hooks | |
60 | from IPython.core import magic, oinspect, page, prefilter, ultratb |
|
60 | from IPython.core import magic, oinspect, page, prefilter, ultratb | |
61 | from IPython.core.alias import Alias, AliasManager |
|
61 | from IPython.core.alias import Alias, AliasManager | |
62 | from IPython.core.autocall import ExitAutocall |
|
62 | from IPython.core.autocall import ExitAutocall | |
63 | from IPython.core.builtin_trap import BuiltinTrap |
|
63 | from IPython.core.builtin_trap import BuiltinTrap | |
64 | from IPython.core.compilerop import CachingCompiler |
|
64 | from IPython.core.compilerop import CachingCompiler | |
65 | from IPython.core.debugger import InterruptiblePdb |
|
65 | from IPython.core.debugger import InterruptiblePdb | |
66 | from IPython.core.display_trap import DisplayTrap |
|
66 | from IPython.core.display_trap import DisplayTrap | |
67 | from IPython.core.displayhook import DisplayHook |
|
67 | from IPython.core.displayhook import DisplayHook | |
68 | from IPython.core.displaypub import DisplayPublisher |
|
68 | from IPython.core.displaypub import DisplayPublisher | |
69 | from IPython.core.error import InputRejected, UsageError |
|
69 | from IPython.core.error import InputRejected, UsageError | |
70 | from IPython.core.events import EventManager, available_events |
|
70 | from IPython.core.events import EventManager, available_events | |
71 | from IPython.core.extensions import ExtensionManager |
|
71 | from IPython.core.extensions import ExtensionManager | |
72 | from IPython.core.formatters import DisplayFormatter |
|
72 | from IPython.core.formatters import DisplayFormatter | |
73 | from IPython.core.history import HistoryManager |
|
73 | from IPython.core.history import HistoryManager | |
74 | from IPython.core.inputtransformer2 import ESC_MAGIC, ESC_MAGIC2 |
|
74 | from IPython.core.inputtransformer2 import ESC_MAGIC, ESC_MAGIC2 | |
75 | from IPython.core.logger import Logger |
|
75 | from IPython.core.logger import Logger | |
76 | from IPython.core.macro import Macro |
|
76 | from IPython.core.macro import Macro | |
77 | from IPython.core.payload import PayloadManager |
|
77 | from IPython.core.payload import PayloadManager | |
78 | from IPython.core.prefilter import PrefilterManager |
|
78 | from IPython.core.prefilter import PrefilterManager | |
79 | from IPython.core.profiledir import ProfileDir |
|
79 | from IPython.core.profiledir import ProfileDir | |
80 | from IPython.core.usage import default_banner |
|
80 | from IPython.core.usage import default_banner | |
81 | from IPython.display import display |
|
81 | from IPython.display import display | |
82 | from IPython.paths import get_ipython_dir |
|
82 | from IPython.paths import get_ipython_dir | |
83 | from IPython.testing.skipdoctest import skip_doctest |
|
83 | from IPython.testing.skipdoctest import skip_doctest | |
84 | from IPython.utils import PyColorize, io, openpy, py3compat |
|
84 | from IPython.utils import PyColorize, io, openpy, py3compat | |
85 | from IPython.utils.decorators import undoc |
|
85 | from IPython.utils.decorators import undoc | |
86 | from IPython.utils.io import ask_yes_no |
|
86 | from IPython.utils.io import ask_yes_no | |
87 | from IPython.utils.ipstruct import Struct |
|
87 | from IPython.utils.ipstruct import Struct | |
88 | from IPython.utils.path import ensure_dir_exists, get_home_dir, get_py_filename |
|
88 | from IPython.utils.path import ensure_dir_exists, get_home_dir, get_py_filename | |
89 | from IPython.utils.process import getoutput, system |
|
89 | from IPython.utils.process import getoutput, system | |
90 | from IPython.utils.strdispatch import StrDispatch |
|
90 | from IPython.utils.strdispatch import StrDispatch | |
91 | from IPython.utils.syspathcontext import prepended_to_syspath |
|
91 | from IPython.utils.syspathcontext import prepended_to_syspath | |
92 | from IPython.utils.text import DollarFormatter, LSString, SList, format_screen |
|
92 | from IPython.utils.text import DollarFormatter, LSString, SList, format_screen | |
93 | from IPython.core.oinspect import OInfo |
|
93 | from IPython.core.oinspect import OInfo | |
94 |
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94 | |||
95 |
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95 | |||
96 | sphinxify: Optional[Callable] |
|
96 | sphinxify: Optional[Callable] | |
97 |
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97 | |||
98 | try: |
|
98 | try: | |
99 | import docrepr.sphinxify as sphx |
|
99 | import docrepr.sphinxify as sphx | |
100 |
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100 | |||
101 | def sphinxify(oinfo): |
|
101 | def sphinxify(oinfo): | |
102 | wrapped_docstring = sphx.wrap_main_docstring(oinfo) |
|
102 | wrapped_docstring = sphx.wrap_main_docstring(oinfo) | |
103 |
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103 | |||
104 | def sphinxify_docstring(docstring): |
|
104 | def sphinxify_docstring(docstring): | |
105 | with TemporaryDirectory() as dirname: |
|
105 | with TemporaryDirectory() as dirname: | |
106 | return { |
|
106 | return { | |
107 | "text/html": sphx.sphinxify(wrapped_docstring, dirname), |
|
107 | "text/html": sphx.sphinxify(wrapped_docstring, dirname), | |
108 | "text/plain": docstring, |
|
108 | "text/plain": docstring, | |
109 | } |
|
109 | } | |
110 |
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110 | |||
111 | return sphinxify_docstring |
|
111 | return sphinxify_docstring | |
112 | except ImportError: |
|
112 | except ImportError: | |
113 | sphinxify = None |
|
113 | sphinxify = None | |
114 |
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114 | |||
115 | if sys.version_info[:2] < (3, 11): |
|
115 | if sys.version_info[:2] < (3, 11): | |
116 | from exceptiongroup import BaseExceptionGroup |
|
116 | from exceptiongroup import BaseExceptionGroup | |
117 |
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117 | |||
118 | class ProvisionalWarning(DeprecationWarning): |
|
118 | class ProvisionalWarning(DeprecationWarning): | |
119 | """ |
|
119 | """ | |
120 | Warning class for unstable features |
|
120 | Warning class for unstable features | |
121 | """ |
|
121 | """ | |
122 | pass |
|
122 | pass | |
123 |
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123 | |||
124 | from ast import Module |
|
124 | from ast import Module | |
125 |
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125 | |||
126 | _assign_nodes = (ast.AugAssign, ast.AnnAssign, ast.Assign) |
|
126 | _assign_nodes = (ast.AugAssign, ast.AnnAssign, ast.Assign) | |
127 | _single_targets_nodes = (ast.AugAssign, ast.AnnAssign) |
|
127 | _single_targets_nodes = (ast.AugAssign, ast.AnnAssign) | |
128 |
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128 | |||
129 | #----------------------------------------------------------------------------- |
|
129 | #----------------------------------------------------------------------------- | |
130 | # Await Helpers |
|
130 | # Await Helpers | |
131 | #----------------------------------------------------------------------------- |
|
131 | #----------------------------------------------------------------------------- | |
132 |
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132 | |||
133 | # we still need to run things using the asyncio eventloop, but there is no |
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133 | # we still need to run things using the asyncio eventloop, but there is no | |
134 | # async integration |
|
134 | # async integration | |
135 | from .async_helpers import ( |
|
135 | from .async_helpers import ( | |
136 | _asyncio_runner, |
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136 | _asyncio_runner, | |
137 | _curio_runner, |
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137 | _curio_runner, | |
138 | _pseudo_sync_runner, |
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138 | _pseudo_sync_runner, | |
139 | _should_be_async, |
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139 | _should_be_async, | |
140 | _trio_runner, |
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140 | _trio_runner, | |
141 | ) |
|
141 | ) | |
142 |
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142 | |||
143 | #----------------------------------------------------------------------------- |
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143 | #----------------------------------------------------------------------------- | |
144 | # Globals |
|
144 | # Globals | |
145 | #----------------------------------------------------------------------------- |
|
145 | #----------------------------------------------------------------------------- | |
146 |
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146 | |||
147 | # compiled regexps for autoindent management |
|
147 | # compiled regexps for autoindent management | |
148 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') |
|
148 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') | |
149 |
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149 | |||
150 | #----------------------------------------------------------------------------- |
|
150 | #----------------------------------------------------------------------------- | |
151 | # Utilities |
|
151 | # Utilities | |
152 | #----------------------------------------------------------------------------- |
|
152 | #----------------------------------------------------------------------------- | |
153 |
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153 | |||
154 |
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154 | |||
155 | def is_integer_string(s: str): |
|
155 | def is_integer_string(s: str): | |
156 | """ |
|
156 | """ | |
157 | Variant of "str.isnumeric()" that allow negative values and other ints. |
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157 | Variant of "str.isnumeric()" that allow negative values and other ints. | |
158 | """ |
|
158 | """ | |
159 | try: |
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159 | try: | |
160 | int(s) |
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160 | int(s) | |
161 | return True |
|
161 | return True | |
162 | except ValueError: |
|
162 | except ValueError: | |
163 | return False |
|
163 | return False | |
164 | raise ValueError("Unexpected error") |
|
164 | raise ValueError("Unexpected error") | |
165 |
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165 | |||
166 |
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166 | |||
167 | @undoc |
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167 | @undoc | |
168 | def softspace(file, newvalue): |
|
168 | def softspace(file, newvalue): | |
169 | """Copied from code.py, to remove the dependency""" |
|
169 | """Copied from code.py, to remove the dependency""" | |
170 |
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170 | |||
171 | oldvalue = 0 |
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171 | oldvalue = 0 | |
172 | try: |
|
172 | try: | |
173 | oldvalue = file.softspace |
|
173 | oldvalue = file.softspace | |
174 | except AttributeError: |
|
174 | except AttributeError: | |
175 | pass |
|
175 | pass | |
176 | try: |
|
176 | try: | |
177 | file.softspace = newvalue |
|
177 | file.softspace = newvalue | |
178 | except (AttributeError, TypeError): |
|
178 | except (AttributeError, TypeError): | |
179 | # "attribute-less object" or "read-only attributes" |
|
179 | # "attribute-less object" or "read-only attributes" | |
180 | pass |
|
180 | pass | |
181 | return oldvalue |
|
181 | return oldvalue | |
182 |
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182 | |||
183 | @undoc |
|
183 | @undoc | |
184 | def no_op(*a, **kw): |
|
184 | def no_op(*a, **kw): | |
185 | pass |
|
185 | pass | |
186 |
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186 | |||
187 |
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187 | |||
188 | class SpaceInInput(Exception): pass |
|
188 | class SpaceInInput(Exception): pass | |
189 |
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189 | |||
190 |
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190 | |||
191 | class SeparateUnicode(Unicode): |
|
191 | class SeparateUnicode(Unicode): | |
192 | r"""A Unicode subclass to validate separate_in, separate_out, etc. |
|
192 | r"""A Unicode subclass to validate separate_in, separate_out, etc. | |
193 |
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193 | |||
194 | This is a Unicode based trait that converts '0'->'' and ``'\\n'->'\n'``. |
|
194 | This is a Unicode based trait that converts '0'->'' and ``'\\n'->'\n'``. | |
195 | """ |
|
195 | """ | |
196 |
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196 | |||
197 | def validate(self, obj, value): |
|
197 | def validate(self, obj, value): | |
198 | if value == '0': value = '' |
|
198 | if value == '0': value = '' | |
199 | value = value.replace('\\n','\n') |
|
199 | value = value.replace('\\n','\n') | |
200 | return super(SeparateUnicode, self).validate(obj, value) |
|
200 | return super(SeparateUnicode, self).validate(obj, value) | |
201 |
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201 | |||
202 |
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202 | |||
203 | @undoc |
|
203 | @undoc | |
204 | class DummyMod(object): |
|
204 | class DummyMod(object): | |
205 | """A dummy module used for IPython's interactive module when |
|
205 | """A dummy module used for IPython's interactive module when | |
206 | a namespace must be assigned to the module's __dict__.""" |
|
206 | a namespace must be assigned to the module's __dict__.""" | |
207 | __spec__ = None |
|
207 | __spec__ = None | |
208 |
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208 | |||
209 |
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209 | |||
210 | class ExecutionInfo(object): |
|
210 | class ExecutionInfo(object): | |
211 | """The arguments used for a call to :meth:`InteractiveShell.run_cell` |
|
211 | """The arguments used for a call to :meth:`InteractiveShell.run_cell` | |
212 |
|
212 | |||
213 | Stores information about what is going to happen. |
|
213 | Stores information about what is going to happen. | |
214 | """ |
|
214 | """ | |
215 | raw_cell = None |
|
215 | raw_cell = None | |
216 | store_history = False |
|
216 | store_history = False | |
217 | silent = False |
|
217 | silent = False | |
218 | shell_futures = True |
|
218 | shell_futures = True | |
219 | cell_id = None |
|
219 | cell_id = None | |
220 |
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220 | |||
221 | def __init__(self, raw_cell, store_history, silent, shell_futures, cell_id): |
|
221 | def __init__(self, raw_cell, store_history, silent, shell_futures, cell_id): | |
222 | self.raw_cell = raw_cell |
|
222 | self.raw_cell = raw_cell | |
223 | self.store_history = store_history |
|
223 | self.store_history = store_history | |
224 | self.silent = silent |
|
224 | self.silent = silent | |
225 | self.shell_futures = shell_futures |
|
225 | self.shell_futures = shell_futures | |
226 | self.cell_id = cell_id |
|
226 | self.cell_id = cell_id | |
227 |
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227 | |||
228 | def __repr__(self): |
|
228 | def __repr__(self): | |
229 | name = self.__class__.__qualname__ |
|
229 | name = self.__class__.__qualname__ | |
230 | raw_cell = ( |
|
230 | raw_cell = ( | |
231 | (self.raw_cell[:50] + "..") if len(self.raw_cell) > 50 else self.raw_cell |
|
231 | (self.raw_cell[:50] + "..") if len(self.raw_cell) > 50 else self.raw_cell | |
232 | ) |
|
232 | ) | |
233 | return ( |
|
233 | return ( | |
234 | '<%s object at %x, raw_cell="%s" store_history=%s silent=%s shell_futures=%s cell_id=%s>' |
|
234 | '<%s object at %x, raw_cell="%s" store_history=%s silent=%s shell_futures=%s cell_id=%s>' | |
235 | % ( |
|
235 | % ( | |
236 | name, |
|
236 | name, | |
237 | id(self), |
|
237 | id(self), | |
238 | raw_cell, |
|
238 | raw_cell, | |
239 | self.store_history, |
|
239 | self.store_history, | |
240 | self.silent, |
|
240 | self.silent, | |
241 | self.shell_futures, |
|
241 | self.shell_futures, | |
242 | self.cell_id, |
|
242 | self.cell_id, | |
243 | ) |
|
243 | ) | |
244 | ) |
|
244 | ) | |
245 |
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245 | |||
246 |
|
246 | |||
247 | class ExecutionResult(object): |
|
247 | class ExecutionResult(object): | |
248 | """The result of a call to :meth:`InteractiveShell.run_cell` |
|
248 | """The result of a call to :meth:`InteractiveShell.run_cell` | |
249 |
|
249 | |||
250 | Stores information about what took place. |
|
250 | Stores information about what took place. | |
251 | """ |
|
251 | """ | |
252 | execution_count = None |
|
252 | execution_count = None | |
253 | error_before_exec = None |
|
253 | error_before_exec = None | |
254 | error_in_exec: Optional[BaseException] = None |
|
254 | error_in_exec: Optional[BaseException] = None | |
255 | info = None |
|
255 | info = None | |
256 | result = None |
|
256 | result = None | |
257 |
|
257 | |||
258 | def __init__(self, info): |
|
258 | def __init__(self, info): | |
259 | self.info = info |
|
259 | self.info = info | |
260 |
|
260 | |||
261 | @property |
|
261 | @property | |
262 | def success(self): |
|
262 | def success(self): | |
263 | return (self.error_before_exec is None) and (self.error_in_exec is None) |
|
263 | return (self.error_before_exec is None) and (self.error_in_exec is None) | |
264 |
|
264 | |||
265 | def raise_error(self): |
|
265 | def raise_error(self): | |
266 | """Reraises error if `success` is `False`, otherwise does nothing""" |
|
266 | """Reraises error if `success` is `False`, otherwise does nothing""" | |
267 | if self.error_before_exec is not None: |
|
267 | if self.error_before_exec is not None: | |
268 | raise self.error_before_exec |
|
268 | raise self.error_before_exec | |
269 | if self.error_in_exec is not None: |
|
269 | if self.error_in_exec is not None: | |
270 | raise self.error_in_exec |
|
270 | raise self.error_in_exec | |
271 |
|
271 | |||
272 | def __repr__(self): |
|
272 | def __repr__(self): | |
273 | name = self.__class__.__qualname__ |
|
273 | name = self.__class__.__qualname__ | |
274 | return '<%s object at %x, execution_count=%s error_before_exec=%s error_in_exec=%s info=%s result=%s>' %\ |
|
274 | return '<%s object at %x, execution_count=%s error_before_exec=%s error_in_exec=%s info=%s result=%s>' %\ | |
275 | (name, id(self), self.execution_count, self.error_before_exec, self.error_in_exec, repr(self.info), repr(self.result)) |
|
275 | (name, id(self), self.execution_count, self.error_before_exec, self.error_in_exec, repr(self.info), repr(self.result)) | |
276 |
|
276 | |||
277 | @functools.wraps(io_open) |
|
277 | @functools.wraps(io_open) | |
278 | def _modified_open(file, *args, **kwargs): |
|
278 | def _modified_open(file, *args, **kwargs): | |
279 | if file in {0, 1, 2}: |
|
279 | if file in {0, 1, 2}: | |
280 | raise ValueError( |
|
280 | raise ValueError( | |
281 | f"IPython won't let you open fd={file} by default " |
|
281 | f"IPython won't let you open fd={file} by default " | |
282 | "as it is likely to crash IPython. If you know what you are doing, " |
|
282 | "as it is likely to crash IPython. If you know what you are doing, " | |
283 | "you can use builtins' open." |
|
283 | "you can use builtins' open." | |
284 | ) |
|
284 | ) | |
285 |
|
285 | |||
286 | return io_open(file, *args, **kwargs) |
|
286 | return io_open(file, *args, **kwargs) | |
287 |
|
287 | |||
288 | class InteractiveShell(SingletonConfigurable): |
|
288 | class InteractiveShell(SingletonConfigurable): | |
289 | """An enhanced, interactive shell for Python.""" |
|
289 | """An enhanced, interactive shell for Python.""" | |
290 |
|
290 | |||
291 | _instance = None |
|
291 | _instance = None | |
292 |
|
292 | |||
293 | ast_transformers = List([], help= |
|
293 | ast_transformers = List([], help= | |
294 | """ |
|
294 | """ | |
295 | A list of ast.NodeTransformer subclass instances, which will be applied |
|
295 | A list of ast.NodeTransformer subclass instances, which will be applied | |
296 | to user input before code is run. |
|
296 | to user input before code is run. | |
297 | """ |
|
297 | """ | |
298 | ).tag(config=True) |
|
298 | ).tag(config=True) | |
299 |
|
299 | |||
300 | autocall = Enum((0,1,2), default_value=0, help= |
|
300 | autocall = Enum((0,1,2), default_value=0, help= | |
301 | """ |
|
301 | """ | |
302 | Make IPython automatically call any callable object even if you didn't |
|
302 | Make IPython automatically call any callable object even if you didn't | |
303 | type explicit parentheses. For example, 'str 43' becomes 'str(43)' |
|
303 | type explicit parentheses. For example, 'str 43' becomes 'str(43)' | |
304 | automatically. The value can be '0' to disable the feature, '1' for |
|
304 | automatically. The value can be '0' to disable the feature, '1' for | |
305 | 'smart' autocall, where it is not applied if there are no more |
|
305 | 'smart' autocall, where it is not applied if there are no more | |
306 | arguments on the line, and '2' for 'full' autocall, where all callable |
|
306 | arguments on the line, and '2' for 'full' autocall, where all callable | |
307 | objects are automatically called (even if no arguments are present). |
|
307 | objects are automatically called (even if no arguments are present). | |
308 | """ |
|
308 | """ | |
309 | ).tag(config=True) |
|
309 | ).tag(config=True) | |
310 |
|
310 | |||
311 | autoindent = Bool(True, help= |
|
311 | autoindent = Bool(True, help= | |
312 | """ |
|
312 | """ | |
313 | Autoindent IPython code entered interactively. |
|
313 | Autoindent IPython code entered interactively. | |
314 | """ |
|
314 | """ | |
315 | ).tag(config=True) |
|
315 | ).tag(config=True) | |
316 |
|
316 | |||
317 | autoawait = Bool(True, help= |
|
317 | autoawait = Bool(True, help= | |
318 | """ |
|
318 | """ | |
319 | Automatically run await statement in the top level repl. |
|
319 | Automatically run await statement in the top level repl. | |
320 | """ |
|
320 | """ | |
321 | ).tag(config=True) |
|
321 | ).tag(config=True) | |
322 |
|
322 | |||
323 | loop_runner_map ={ |
|
323 | loop_runner_map ={ | |
324 | 'asyncio':(_asyncio_runner, True), |
|
324 | 'asyncio':(_asyncio_runner, True), | |
325 | 'curio':(_curio_runner, True), |
|
325 | 'curio':(_curio_runner, True), | |
326 | 'trio':(_trio_runner, True), |
|
326 | 'trio':(_trio_runner, True), | |
327 | 'sync': (_pseudo_sync_runner, False) |
|
327 | 'sync': (_pseudo_sync_runner, False) | |
328 | } |
|
328 | } | |
329 |
|
329 | |||
330 | loop_runner = Any(default_value="IPython.core.interactiveshell._asyncio_runner", |
|
330 | loop_runner = Any(default_value="IPython.core.interactiveshell._asyncio_runner", | |
331 | allow_none=True, |
|
331 | allow_none=True, | |
332 | help="""Select the loop runner that will be used to execute top-level asynchronous code""" |
|
332 | help="""Select the loop runner that will be used to execute top-level asynchronous code""" | |
333 | ).tag(config=True) |
|
333 | ).tag(config=True) | |
334 |
|
334 | |||
335 | @default('loop_runner') |
|
335 | @default('loop_runner') | |
336 | def _default_loop_runner(self): |
|
336 | def _default_loop_runner(self): | |
337 | return import_item("IPython.core.interactiveshell._asyncio_runner") |
|
337 | return import_item("IPython.core.interactiveshell._asyncio_runner") | |
338 |
|
338 | |||
339 | @validate('loop_runner') |
|
339 | @validate('loop_runner') | |
340 | def _import_runner(self, proposal): |
|
340 | def _import_runner(self, proposal): | |
341 | if isinstance(proposal.value, str): |
|
341 | if isinstance(proposal.value, str): | |
342 | if proposal.value in self.loop_runner_map: |
|
342 | if proposal.value in self.loop_runner_map: | |
343 | runner, autoawait = self.loop_runner_map[proposal.value] |
|
343 | runner, autoawait = self.loop_runner_map[proposal.value] | |
344 | self.autoawait = autoawait |
|
344 | self.autoawait = autoawait | |
345 | return runner |
|
345 | return runner | |
346 | runner = import_item(proposal.value) |
|
346 | runner = import_item(proposal.value) | |
347 | if not callable(runner): |
|
347 | if not callable(runner): | |
348 | raise ValueError('loop_runner must be callable') |
|
348 | raise ValueError('loop_runner must be callable') | |
349 | return runner |
|
349 | return runner | |
350 | if not callable(proposal.value): |
|
350 | if not callable(proposal.value): | |
351 | raise ValueError('loop_runner must be callable') |
|
351 | raise ValueError('loop_runner must be callable') | |
352 | return proposal.value |
|
352 | return proposal.value | |
353 |
|
353 | |||
354 | automagic = Bool(True, help= |
|
354 | automagic = Bool(True, help= | |
355 | """ |
|
355 | """ | |
356 | Enable magic commands to be called without the leading %. |
|
356 | Enable magic commands to be called without the leading %. | |
357 | """ |
|
357 | """ | |
358 | ).tag(config=True) |
|
358 | ).tag(config=True) | |
359 |
|
359 | |||
360 | banner1 = Unicode(default_banner, |
|
360 | banner1 = Unicode(default_banner, | |
361 | help="""The part of the banner to be printed before the profile""" |
|
361 | help="""The part of the banner to be printed before the profile""" | |
362 | ).tag(config=True) |
|
362 | ).tag(config=True) | |
363 | banner2 = Unicode('', |
|
363 | banner2 = Unicode('', | |
364 | help="""The part of the banner to be printed after the profile""" |
|
364 | help="""The part of the banner to be printed after the profile""" | |
365 | ).tag(config=True) |
|
365 | ).tag(config=True) | |
366 |
|
366 | |||
367 | cache_size = Integer(1000, help= |
|
367 | cache_size = Integer(1000, help= | |
368 | """ |
|
368 | """ | |
369 | Set the size of the output cache. The default is 1000, you can |
|
369 | Set the size of the output cache. The default is 1000, you can | |
370 | change it permanently in your config file. Setting it to 0 completely |
|
370 | change it permanently in your config file. Setting it to 0 completely | |
371 | disables the caching system, and the minimum value accepted is 3 (if |
|
371 | disables the caching system, and the minimum value accepted is 3 (if | |
372 | you provide a value less than 3, it is reset to 0 and a warning is |
|
372 | you provide a value less than 3, it is reset to 0 and a warning is | |
373 | issued). This limit is defined because otherwise you'll spend more |
|
373 | issued). This limit is defined because otherwise you'll spend more | |
374 | time re-flushing a too small cache than working |
|
374 | time re-flushing a too small cache than working | |
375 | """ |
|
375 | """ | |
376 | ).tag(config=True) |
|
376 | ).tag(config=True) | |
377 | color_info = Bool(True, help= |
|
377 | color_info = Bool(True, help= | |
378 | """ |
|
378 | """ | |
379 | Use colors for displaying information about objects. Because this |
|
379 | Use colors for displaying information about objects. Because this | |
380 | information is passed through a pager (like 'less'), and some pagers |
|
380 | information is passed through a pager (like 'less'), and some pagers | |
381 | get confused with color codes, this capability can be turned off. |
|
381 | get confused with color codes, this capability can be turned off. | |
382 | """ |
|
382 | """ | |
383 | ).tag(config=True) |
|
383 | ).tag(config=True) | |
384 | colors = CaselessStrEnum(('Neutral', 'NoColor','LightBG','Linux'), |
|
384 | colors = CaselessStrEnum(('Neutral', 'NoColor','LightBG','Linux'), | |
385 | default_value='Neutral', |
|
385 | default_value='Neutral', | |
386 | help="Set the color scheme (NoColor, Neutral, Linux, or LightBG)." |
|
386 | help="Set the color scheme (NoColor, Neutral, Linux, or LightBG)." | |
387 | ).tag(config=True) |
|
387 | ).tag(config=True) | |
388 | debug = Bool(False).tag(config=True) |
|
388 | debug = Bool(False).tag(config=True) | |
389 | disable_failing_post_execute = Bool(False, |
|
389 | disable_failing_post_execute = Bool(False, | |
390 | help="Don't call post-execute functions that have failed in the past." |
|
390 | help="Don't call post-execute functions that have failed in the past." | |
391 | ).tag(config=True) |
|
391 | ).tag(config=True) | |
392 | display_formatter = Instance(DisplayFormatter, allow_none=True) |
|
392 | display_formatter = Instance(DisplayFormatter, allow_none=True) | |
393 | displayhook_class = Type(DisplayHook) |
|
393 | displayhook_class = Type(DisplayHook) | |
394 | display_pub_class = Type(DisplayPublisher) |
|
394 | display_pub_class = Type(DisplayPublisher) | |
395 | compiler_class = Type(CachingCompiler) |
|
395 | compiler_class = Type(CachingCompiler) | |
396 | inspector_class = Type( |
|
396 | inspector_class = Type( | |
397 | oinspect.Inspector, help="Class to use to instantiate the shell inspector" |
|
397 | oinspect.Inspector, help="Class to use to instantiate the shell inspector" | |
398 | ).tag(config=True) |
|
398 | ).tag(config=True) | |
399 |
|
399 | |||
400 | sphinxify_docstring = Bool(False, help= |
|
400 | sphinxify_docstring = Bool(False, help= | |
401 | """ |
|
401 | """ | |
402 | Enables rich html representation of docstrings. (This requires the |
|
402 | Enables rich html representation of docstrings. (This requires the | |
403 | docrepr module). |
|
403 | docrepr module). | |
404 | """).tag(config=True) |
|
404 | """).tag(config=True) | |
405 |
|
405 | |||
406 | @observe("sphinxify_docstring") |
|
406 | @observe("sphinxify_docstring") | |
407 | def _sphinxify_docstring_changed(self, change): |
|
407 | def _sphinxify_docstring_changed(self, change): | |
408 | if change['new']: |
|
408 | if change['new']: | |
409 | warn("`sphinxify_docstring` is provisional since IPython 5.0 and might change in future versions." , ProvisionalWarning) |
|
409 | warn("`sphinxify_docstring` is provisional since IPython 5.0 and might change in future versions." , ProvisionalWarning) | |
410 |
|
410 | |||
411 | enable_html_pager = Bool(False, help= |
|
411 | enable_html_pager = Bool(False, help= | |
412 | """ |
|
412 | """ | |
413 | (Provisional API) enables html representation in mime bundles sent |
|
413 | (Provisional API) enables html representation in mime bundles sent | |
414 | to pagers. |
|
414 | to pagers. | |
415 | """).tag(config=True) |
|
415 | """).tag(config=True) | |
416 |
|
416 | |||
417 | @observe("enable_html_pager") |
|
417 | @observe("enable_html_pager") | |
418 | def _enable_html_pager_changed(self, change): |
|
418 | def _enable_html_pager_changed(self, change): | |
419 | if change['new']: |
|
419 | if change['new']: | |
420 | warn("`enable_html_pager` is provisional since IPython 5.0 and might change in future versions.", ProvisionalWarning) |
|
420 | warn("`enable_html_pager` is provisional since IPython 5.0 and might change in future versions.", ProvisionalWarning) | |
421 |
|
421 | |||
422 | data_pub_class = None |
|
422 | data_pub_class = None | |
423 |
|
423 | |||
424 | exit_now = Bool(False) |
|
424 | exit_now = Bool(False) | |
425 | exiter = Instance(ExitAutocall) |
|
425 | exiter = Instance(ExitAutocall) | |
426 | @default('exiter') |
|
426 | @default('exiter') | |
427 | def _exiter_default(self): |
|
427 | def _exiter_default(self): | |
428 | return ExitAutocall(self) |
|
428 | return ExitAutocall(self) | |
429 | # Monotonically increasing execution counter |
|
429 | # Monotonically increasing execution counter | |
430 | execution_count = Integer(1) |
|
430 | execution_count = Integer(1) | |
431 | filename = Unicode("<ipython console>") |
|
431 | filename = Unicode("<ipython console>") | |
432 | ipython_dir= Unicode('').tag(config=True) # Set to get_ipython_dir() in __init__ |
|
432 | ipython_dir= Unicode('').tag(config=True) # Set to get_ipython_dir() in __init__ | |
433 |
|
433 | |||
434 | # Used to transform cells before running them, and check whether code is complete |
|
434 | # Used to transform cells before running them, and check whether code is complete | |
435 | input_transformer_manager = Instance('IPython.core.inputtransformer2.TransformerManager', |
|
435 | input_transformer_manager = Instance('IPython.core.inputtransformer2.TransformerManager', | |
436 | ()) |
|
436 | ()) | |
437 |
|
437 | |||
438 | @property |
|
438 | @property | |
439 | def input_transformers_cleanup(self): |
|
439 | def input_transformers_cleanup(self): | |
440 | return self.input_transformer_manager.cleanup_transforms |
|
440 | return self.input_transformer_manager.cleanup_transforms | |
441 |
|
441 | |||
442 | input_transformers_post = List([], |
|
442 | input_transformers_post = List([], | |
443 | help="A list of string input transformers, to be applied after IPython's " |
|
443 | help="A list of string input transformers, to be applied after IPython's " | |
444 | "own input transformations." |
|
444 | "own input transformations." | |
445 | ) |
|
445 | ) | |
446 |
|
446 | |||
447 | @property |
|
447 | @property | |
448 | def input_splitter(self): |
|
448 | def input_splitter(self): | |
449 | """Make this available for backward compatibility (pre-7.0 release) with existing code. |
|
449 | """Make this available for backward compatibility (pre-7.0 release) with existing code. | |
450 |
|
450 | |||
451 | For example, ipykernel ipykernel currently uses |
|
451 | For example, ipykernel ipykernel currently uses | |
452 | `shell.input_splitter.check_complete` |
|
452 | `shell.input_splitter.check_complete` | |
453 | """ |
|
453 | """ | |
454 | from warnings import warn |
|
454 | from warnings import warn | |
455 | warn("`input_splitter` is deprecated since IPython 7.0, prefer `input_transformer_manager`.", |
|
455 | warn("`input_splitter` is deprecated since IPython 7.0, prefer `input_transformer_manager`.", | |
456 | DeprecationWarning, stacklevel=2 |
|
456 | DeprecationWarning, stacklevel=2 | |
457 | ) |
|
457 | ) | |
458 | return self.input_transformer_manager |
|
458 | return self.input_transformer_manager | |
459 |
|
459 | |||
460 | logstart = Bool(False, help= |
|
460 | logstart = Bool(False, help= | |
461 | """ |
|
461 | """ | |
462 | Start logging to the default log file in overwrite mode. |
|
462 | Start logging to the default log file in overwrite mode. | |
463 | Use `logappend` to specify a log file to **append** logs to. |
|
463 | Use `logappend` to specify a log file to **append** logs to. | |
464 | """ |
|
464 | """ | |
465 | ).tag(config=True) |
|
465 | ).tag(config=True) | |
466 | logfile = Unicode('', help= |
|
466 | logfile = Unicode('', help= | |
467 | """ |
|
467 | """ | |
468 | The name of the logfile to use. |
|
468 | The name of the logfile to use. | |
469 | """ |
|
469 | """ | |
470 | ).tag(config=True) |
|
470 | ).tag(config=True) | |
471 | logappend = Unicode('', help= |
|
471 | logappend = Unicode('', help= | |
472 | """ |
|
472 | """ | |
473 | Start logging to the given file in append mode. |
|
473 | Start logging to the given file in append mode. | |
474 | Use `logfile` to specify a log file to **overwrite** logs to. |
|
474 | Use `logfile` to specify a log file to **overwrite** logs to. | |
475 | """ |
|
475 | """ | |
476 | ).tag(config=True) |
|
476 | ).tag(config=True) | |
477 | object_info_string_level = Enum((0,1,2), default_value=0, |
|
477 | object_info_string_level = Enum((0,1,2), default_value=0, | |
478 | ).tag(config=True) |
|
478 | ).tag(config=True) | |
479 | pdb = Bool(False, help= |
|
479 | pdb = Bool(False, help= | |
480 | """ |
|
480 | """ | |
481 | Automatically call the pdb debugger after every exception. |
|
481 | Automatically call the pdb debugger after every exception. | |
482 | """ |
|
482 | """ | |
483 | ).tag(config=True) |
|
483 | ).tag(config=True) | |
484 | display_page = Bool(False, |
|
484 | display_page = Bool(False, | |
485 | help="""If True, anything that would be passed to the pager |
|
485 | help="""If True, anything that would be passed to the pager | |
486 | will be displayed as regular output instead.""" |
|
486 | will be displayed as regular output instead.""" | |
487 | ).tag(config=True) |
|
487 | ).tag(config=True) | |
488 |
|
488 | |||
489 |
|
489 | |||
490 | show_rewritten_input = Bool(True, |
|
490 | show_rewritten_input = Bool(True, | |
491 | help="Show rewritten input, e.g. for autocall." |
|
491 | help="Show rewritten input, e.g. for autocall." | |
492 | ).tag(config=True) |
|
492 | ).tag(config=True) | |
493 |
|
493 | |||
494 | quiet = Bool(False).tag(config=True) |
|
494 | quiet = Bool(False).tag(config=True) | |
495 |
|
495 | |||
496 | history_length = Integer(10000, |
|
496 | history_length = Integer(10000, | |
497 | help='Total length of command history' |
|
497 | help='Total length of command history' | |
498 | ).tag(config=True) |
|
498 | ).tag(config=True) | |
499 |
|
499 | |||
500 | history_load_length = Integer(1000, help= |
|
500 | history_load_length = Integer(1000, help= | |
501 | """ |
|
501 | """ | |
502 | The number of saved history entries to be loaded |
|
502 | The number of saved history entries to be loaded | |
503 | into the history buffer at startup. |
|
503 | into the history buffer at startup. | |
504 | """ |
|
504 | """ | |
505 | ).tag(config=True) |
|
505 | ).tag(config=True) | |
506 |
|
506 | |||
507 | ast_node_interactivity = Enum(['all', 'last', 'last_expr', 'none', 'last_expr_or_assign'], |
|
507 | ast_node_interactivity = Enum(['all', 'last', 'last_expr', 'none', 'last_expr_or_assign'], | |
508 | default_value='last_expr', |
|
508 | default_value='last_expr', | |
509 | help=""" |
|
509 | help=""" | |
510 | 'all', 'last', 'last_expr' or 'none', 'last_expr_or_assign' specifying |
|
510 | 'all', 'last', 'last_expr' or 'none', 'last_expr_or_assign' specifying | |
511 | which nodes should be run interactively (displaying output from expressions). |
|
511 | which nodes should be run interactively (displaying output from expressions). | |
512 | """ |
|
512 | """ | |
513 | ).tag(config=True) |
|
513 | ).tag(config=True) | |
514 |
|
514 | |||
515 | warn_venv = Bool( |
|
515 | warn_venv = Bool( | |
516 | True, |
|
516 | True, | |
517 | help="Warn if running in a virtual environment with no IPython installed (so IPython from the global environment is used).", |
|
517 | help="Warn if running in a virtual environment with no IPython installed (so IPython from the global environment is used).", | |
518 | ).tag(config=True) |
|
518 | ).tag(config=True) | |
519 |
|
519 | |||
520 | # TODO: this part of prompt management should be moved to the frontends. |
|
520 | # TODO: this part of prompt management should be moved to the frontends. | |
521 | # Use custom TraitTypes that convert '0'->'' and '\\n'->'\n' |
|
521 | # Use custom TraitTypes that convert '0'->'' and '\\n'->'\n' | |
522 | separate_in = SeparateUnicode('\n').tag(config=True) |
|
522 | separate_in = SeparateUnicode('\n').tag(config=True) | |
523 | separate_out = SeparateUnicode('').tag(config=True) |
|
523 | separate_out = SeparateUnicode('').tag(config=True) | |
524 | separate_out2 = SeparateUnicode('').tag(config=True) |
|
524 | separate_out2 = SeparateUnicode('').tag(config=True) | |
525 | wildcards_case_sensitive = Bool(True).tag(config=True) |
|
525 | wildcards_case_sensitive = Bool(True).tag(config=True) | |
526 | xmode = CaselessStrEnum(('Context', 'Plain', 'Verbose', 'Minimal'), |
|
526 | xmode = CaselessStrEnum(('Context', 'Plain', 'Verbose', 'Minimal'), | |
527 | default_value='Context', |
|
527 | default_value='Context', | |
528 | help="Switch modes for the IPython exception handlers." |
|
528 | help="Switch modes for the IPython exception handlers." | |
529 | ).tag(config=True) |
|
529 | ).tag(config=True) | |
530 |
|
530 | |||
531 | # Subcomponents of InteractiveShell |
|
531 | # Subcomponents of InteractiveShell | |
532 | alias_manager = Instance('IPython.core.alias.AliasManager', allow_none=True) |
|
532 | alias_manager = Instance('IPython.core.alias.AliasManager', allow_none=True) | |
533 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) |
|
533 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) | |
534 | builtin_trap = Instance('IPython.core.builtin_trap.BuiltinTrap', allow_none=True) |
|
534 | builtin_trap = Instance('IPython.core.builtin_trap.BuiltinTrap', allow_none=True) | |
535 | display_trap = Instance('IPython.core.display_trap.DisplayTrap', allow_none=True) |
|
535 | display_trap = Instance('IPython.core.display_trap.DisplayTrap', allow_none=True) | |
536 | extension_manager = Instance('IPython.core.extensions.ExtensionManager', allow_none=True) |
|
536 | extension_manager = Instance('IPython.core.extensions.ExtensionManager', allow_none=True) | |
537 | payload_manager = Instance('IPython.core.payload.PayloadManager', allow_none=True) |
|
537 | payload_manager = Instance('IPython.core.payload.PayloadManager', allow_none=True) | |
538 | history_manager = Instance('IPython.core.history.HistoryAccessorBase', allow_none=True) |
|
538 | history_manager = Instance('IPython.core.history.HistoryAccessorBase', allow_none=True) | |
539 | magics_manager = Instance('IPython.core.magic.MagicsManager', allow_none=True) |
|
539 | magics_manager = Instance('IPython.core.magic.MagicsManager', allow_none=True) | |
540 |
|
540 | |||
541 | profile_dir = Instance('IPython.core.application.ProfileDir', allow_none=True) |
|
541 | profile_dir = Instance('IPython.core.application.ProfileDir', allow_none=True) | |
542 | @property |
|
542 | @property | |
543 | def profile(self): |
|
543 | def profile(self): | |
544 | if self.profile_dir is not None: |
|
544 | if self.profile_dir is not None: | |
545 | name = os.path.basename(self.profile_dir.location) |
|
545 | name = os.path.basename(self.profile_dir.location) | |
546 | return name.replace('profile_','') |
|
546 | return name.replace('profile_','') | |
547 |
|
547 | |||
548 |
|
548 | |||
549 | # Private interface |
|
549 | # Private interface | |
550 | _post_execute = Dict() |
|
550 | _post_execute = Dict() | |
551 |
|
551 | |||
552 | # Tracks any GUI loop loaded for pylab |
|
552 | # Tracks any GUI loop loaded for pylab | |
553 | pylab_gui_select = None |
|
553 | pylab_gui_select = None | |
554 |
|
554 | |||
555 | last_execution_succeeded = Bool(True, help='Did last executed command succeeded') |
|
555 | last_execution_succeeded = Bool(True, help='Did last executed command succeeded') | |
556 |
|
556 | |||
557 | last_execution_result = Instance('IPython.core.interactiveshell.ExecutionResult', help='Result of executing the last command', allow_none=True) |
|
557 | last_execution_result = Instance('IPython.core.interactiveshell.ExecutionResult', help='Result of executing the last command', allow_none=True) | |
558 |
|
558 | |||
559 | def __init__(self, ipython_dir=None, profile_dir=None, |
|
559 | def __init__(self, ipython_dir=None, profile_dir=None, | |
560 | user_module=None, user_ns=None, |
|
560 | user_module=None, user_ns=None, | |
561 | custom_exceptions=((), None), **kwargs): |
|
561 | custom_exceptions=((), None), **kwargs): | |
562 | # This is where traits with a config_key argument are updated |
|
562 | # This is where traits with a config_key argument are updated | |
563 | # from the values on config. |
|
563 | # from the values on config. | |
564 | super(InteractiveShell, self).__init__(**kwargs) |
|
564 | super(InteractiveShell, self).__init__(**kwargs) | |
565 | if 'PromptManager' in self.config: |
|
565 | if 'PromptManager' in self.config: | |
566 | warn('As of IPython 5.0 `PromptManager` config will have no effect' |
|
566 | warn('As of IPython 5.0 `PromptManager` config will have no effect' | |
567 | ' and has been replaced by TerminalInteractiveShell.prompts_class') |
|
567 | ' and has been replaced by TerminalInteractiveShell.prompts_class') | |
568 | self.configurables = [self] |
|
568 | self.configurables = [self] | |
569 |
|
569 | |||
570 | # These are relatively independent and stateless |
|
570 | # These are relatively independent and stateless | |
571 | self.init_ipython_dir(ipython_dir) |
|
571 | self.init_ipython_dir(ipython_dir) | |
572 | self.init_profile_dir(profile_dir) |
|
572 | self.init_profile_dir(profile_dir) | |
573 | self.init_instance_attrs() |
|
573 | self.init_instance_attrs() | |
574 | self.init_environment() |
|
574 | self.init_environment() | |
575 |
|
575 | |||
576 | # Check if we're in a virtualenv, and set up sys.path. |
|
576 | # Check if we're in a virtualenv, and set up sys.path. | |
577 | self.init_virtualenv() |
|
577 | self.init_virtualenv() | |
578 |
|
578 | |||
579 | # Create namespaces (user_ns, user_global_ns, etc.) |
|
579 | # Create namespaces (user_ns, user_global_ns, etc.) | |
580 | self.init_create_namespaces(user_module, user_ns) |
|
580 | self.init_create_namespaces(user_module, user_ns) | |
581 | # This has to be done after init_create_namespaces because it uses |
|
581 | # This has to be done after init_create_namespaces because it uses | |
582 | # something in self.user_ns, but before init_sys_modules, which |
|
582 | # something in self.user_ns, but before init_sys_modules, which | |
583 | # is the first thing to modify sys. |
|
583 | # is the first thing to modify sys. | |
584 | # TODO: When we override sys.stdout and sys.stderr before this class |
|
584 | # TODO: When we override sys.stdout and sys.stderr before this class | |
585 | # is created, we are saving the overridden ones here. Not sure if this |
|
585 | # is created, we are saving the overridden ones here. Not sure if this | |
586 | # is what we want to do. |
|
586 | # is what we want to do. | |
587 | self.save_sys_module_state() |
|
587 | self.save_sys_module_state() | |
588 | self.init_sys_modules() |
|
588 | self.init_sys_modules() | |
589 |
|
589 | |||
590 | # While we're trying to have each part of the code directly access what |
|
590 | # While we're trying to have each part of the code directly access what | |
591 | # it needs without keeping redundant references to objects, we have too |
|
591 | # it needs without keeping redundant references to objects, we have too | |
592 | # much legacy code that expects ip.db to exist. |
|
592 | # much legacy code that expects ip.db to exist. | |
593 | self.db = PickleShareDB(os.path.join(self.profile_dir.location, 'db')) |
|
593 | self.db = PickleShareDB(os.path.join(self.profile_dir.location, 'db')) | |
594 |
|
594 | |||
595 | self.init_history() |
|
595 | self.init_history() | |
596 | self.init_encoding() |
|
596 | self.init_encoding() | |
597 | self.init_prefilter() |
|
597 | self.init_prefilter() | |
598 |
|
598 | |||
599 | self.init_syntax_highlighting() |
|
599 | self.init_syntax_highlighting() | |
600 | self.init_hooks() |
|
600 | self.init_hooks() | |
601 | self.init_events() |
|
601 | self.init_events() | |
602 | self.init_pushd_popd_magic() |
|
602 | self.init_pushd_popd_magic() | |
603 | self.init_user_ns() |
|
603 | self.init_user_ns() | |
604 | self.init_logger() |
|
604 | self.init_logger() | |
605 | self.init_builtins() |
|
605 | self.init_builtins() | |
606 |
|
606 | |||
607 | # The following was in post_config_initialization |
|
607 | # The following was in post_config_initialization | |
608 | self.init_inspector() |
|
608 | self.init_inspector() | |
609 | self.raw_input_original = input |
|
609 | self.raw_input_original = input | |
610 | self.init_completer() |
|
610 | self.init_completer() | |
611 | # TODO: init_io() needs to happen before init_traceback handlers |
|
611 | # TODO: init_io() needs to happen before init_traceback handlers | |
612 | # because the traceback handlers hardcode the stdout/stderr streams. |
|
612 | # because the traceback handlers hardcode the stdout/stderr streams. | |
613 | # This logic in in debugger.Pdb and should eventually be changed. |
|
613 | # This logic in in debugger.Pdb and should eventually be changed. | |
614 | self.init_io() |
|
614 | self.init_io() | |
615 | self.init_traceback_handlers(custom_exceptions) |
|
615 | self.init_traceback_handlers(custom_exceptions) | |
616 | self.init_prompts() |
|
616 | self.init_prompts() | |
617 | self.init_display_formatter() |
|
617 | self.init_display_formatter() | |
618 | self.init_display_pub() |
|
618 | self.init_display_pub() | |
619 | self.init_data_pub() |
|
619 | self.init_data_pub() | |
620 | self.init_displayhook() |
|
620 | self.init_displayhook() | |
621 | self.init_magics() |
|
621 | self.init_magics() | |
622 | self.init_alias() |
|
622 | self.init_alias() | |
623 | self.init_logstart() |
|
623 | self.init_logstart() | |
624 | self.init_pdb() |
|
624 | self.init_pdb() | |
625 | self.init_extension_manager() |
|
625 | self.init_extension_manager() | |
626 | self.init_payload() |
|
626 | self.init_payload() | |
627 | self.events.trigger('shell_initialized', self) |
|
627 | self.events.trigger('shell_initialized', self) | |
628 | atexit.register(self.atexit_operations) |
|
628 | atexit.register(self.atexit_operations) | |
629 |
|
629 | |||
630 | # The trio runner is used for running Trio in the foreground thread. It |
|
630 | # The trio runner is used for running Trio in the foreground thread. It | |
631 | # is different from `_trio_runner(async_fn)` in `async_helpers.py` |
|
631 | # is different from `_trio_runner(async_fn)` in `async_helpers.py` | |
632 | # which calls `trio.run()` for every cell. This runner runs all cells |
|
632 | # which calls `trio.run()` for every cell. This runner runs all cells | |
633 | # inside a single Trio event loop. If used, it is set from |
|
633 | # inside a single Trio event loop. If used, it is set from | |
634 | # `ipykernel.kernelapp`. |
|
634 | # `ipykernel.kernelapp`. | |
635 | self.trio_runner = None |
|
635 | self.trio_runner = None | |
636 |
|
636 | |||
637 | def get_ipython(self): |
|
637 | def get_ipython(self): | |
638 | """Return the currently running IPython instance.""" |
|
638 | """Return the currently running IPython instance.""" | |
639 | return self |
|
639 | return self | |
640 |
|
640 | |||
641 | #------------------------------------------------------------------------- |
|
641 | #------------------------------------------------------------------------- | |
642 | # Trait changed handlers |
|
642 | # Trait changed handlers | |
643 | #------------------------------------------------------------------------- |
|
643 | #------------------------------------------------------------------------- | |
644 | @observe('ipython_dir') |
|
644 | @observe('ipython_dir') | |
645 | def _ipython_dir_changed(self, change): |
|
645 | def _ipython_dir_changed(self, change): | |
646 | ensure_dir_exists(change['new']) |
|
646 | ensure_dir_exists(change['new']) | |
647 |
|
647 | |||
648 | def set_autoindent(self,value=None): |
|
648 | def set_autoindent(self,value=None): | |
649 | """Set the autoindent flag. |
|
649 | """Set the autoindent flag. | |
650 |
|
650 | |||
651 | If called with no arguments, it acts as a toggle.""" |
|
651 | If called with no arguments, it acts as a toggle.""" | |
652 | if value is None: |
|
652 | if value is None: | |
653 | self.autoindent = not self.autoindent |
|
653 | self.autoindent = not self.autoindent | |
654 | else: |
|
654 | else: | |
655 | self.autoindent = value |
|
655 | self.autoindent = value | |
656 |
|
656 | |||
657 | def set_trio_runner(self, tr): |
|
657 | def set_trio_runner(self, tr): | |
658 | self.trio_runner = tr |
|
658 | self.trio_runner = tr | |
659 |
|
659 | |||
660 | #------------------------------------------------------------------------- |
|
660 | #------------------------------------------------------------------------- | |
661 | # init_* methods called by __init__ |
|
661 | # init_* methods called by __init__ | |
662 | #------------------------------------------------------------------------- |
|
662 | #------------------------------------------------------------------------- | |
663 |
|
663 | |||
664 | def init_ipython_dir(self, ipython_dir): |
|
664 | def init_ipython_dir(self, ipython_dir): | |
665 | if ipython_dir is not None: |
|
665 | if ipython_dir is not None: | |
666 | self.ipython_dir = ipython_dir |
|
666 | self.ipython_dir = ipython_dir | |
667 | return |
|
667 | return | |
668 |
|
668 | |||
669 | self.ipython_dir = get_ipython_dir() |
|
669 | self.ipython_dir = get_ipython_dir() | |
670 |
|
670 | |||
671 | def init_profile_dir(self, profile_dir): |
|
671 | def init_profile_dir(self, profile_dir): | |
672 | if profile_dir is not None: |
|
672 | if profile_dir is not None: | |
673 | self.profile_dir = profile_dir |
|
673 | self.profile_dir = profile_dir | |
674 | return |
|
674 | return | |
675 | self.profile_dir = ProfileDir.create_profile_dir_by_name( |
|
675 | self.profile_dir = ProfileDir.create_profile_dir_by_name( | |
676 | self.ipython_dir, "default" |
|
676 | self.ipython_dir, "default" | |
677 | ) |
|
677 | ) | |
678 |
|
678 | |||
679 | def init_instance_attrs(self): |
|
679 | def init_instance_attrs(self): | |
680 | self.more = False |
|
680 | self.more = False | |
681 |
|
681 | |||
682 | # command compiler |
|
682 | # command compiler | |
683 | self.compile = self.compiler_class() |
|
683 | self.compile = self.compiler_class() | |
684 |
|
684 | |||
685 | # Make an empty namespace, which extension writers can rely on both |
|
685 | # Make an empty namespace, which extension writers can rely on both | |
686 | # existing and NEVER being used by ipython itself. This gives them a |
|
686 | # existing and NEVER being used by ipython itself. This gives them a | |
687 | # convenient location for storing additional information and state |
|
687 | # convenient location for storing additional information and state | |
688 | # their extensions may require, without fear of collisions with other |
|
688 | # their extensions may require, without fear of collisions with other | |
689 | # ipython names that may develop later. |
|
689 | # ipython names that may develop later. | |
690 | self.meta = Struct() |
|
690 | self.meta = Struct() | |
691 |
|
691 | |||
692 | # Temporary files used for various purposes. Deleted at exit. |
|
692 | # Temporary files used for various purposes. Deleted at exit. | |
693 | # The files here are stored with Path from Pathlib |
|
693 | # The files here are stored with Path from Pathlib | |
694 | self.tempfiles = [] |
|
694 | self.tempfiles = [] | |
695 | self.tempdirs = [] |
|
695 | self.tempdirs = [] | |
696 |
|
696 | |||
697 | # keep track of where we started running (mainly for crash post-mortem) |
|
697 | # keep track of where we started running (mainly for crash post-mortem) | |
698 | # This is not being used anywhere currently. |
|
698 | # This is not being used anywhere currently. | |
699 | self.starting_dir = os.getcwd() |
|
699 | self.starting_dir = os.getcwd() | |
700 |
|
700 | |||
701 | # Indentation management |
|
701 | # Indentation management | |
702 | self.indent_current_nsp = 0 |
|
702 | self.indent_current_nsp = 0 | |
703 |
|
703 | |||
704 | # Dict to track post-execution functions that have been registered |
|
704 | # Dict to track post-execution functions that have been registered | |
705 | self._post_execute = {} |
|
705 | self._post_execute = {} | |
706 |
|
706 | |||
707 | def init_environment(self): |
|
707 | def init_environment(self): | |
708 | """Any changes we need to make to the user's environment.""" |
|
708 | """Any changes we need to make to the user's environment.""" | |
709 | pass |
|
709 | pass | |
710 |
|
710 | |||
711 | def init_encoding(self): |
|
711 | def init_encoding(self): | |
712 | # Get system encoding at startup time. Certain terminals (like Emacs |
|
712 | # Get system encoding at startup time. Certain terminals (like Emacs | |
713 | # under Win32 have it set to None, and we need to have a known valid |
|
713 | # under Win32 have it set to None, and we need to have a known valid | |
714 | # encoding to use in the raw_input() method |
|
714 | # encoding to use in the raw_input() method | |
715 | try: |
|
715 | try: | |
716 | self.stdin_encoding = sys.stdin.encoding or 'ascii' |
|
716 | self.stdin_encoding = sys.stdin.encoding or 'ascii' | |
717 | except AttributeError: |
|
717 | except AttributeError: | |
718 | self.stdin_encoding = 'ascii' |
|
718 | self.stdin_encoding = 'ascii' | |
719 |
|
719 | |||
720 |
|
720 | |||
721 | @observe('colors') |
|
721 | @observe('colors') | |
722 | def init_syntax_highlighting(self, changes=None): |
|
722 | def init_syntax_highlighting(self, changes=None): | |
723 | # Python source parser/formatter for syntax highlighting |
|
723 | # Python source parser/formatter for syntax highlighting | |
724 | pyformat = PyColorize.Parser(style=self.colors, parent=self).format |
|
724 | pyformat = PyColorize.Parser(style=self.colors, parent=self).format | |
725 | self.pycolorize = lambda src: pyformat(src,'str') |
|
725 | self.pycolorize = lambda src: pyformat(src,'str') | |
726 |
|
726 | |||
727 | def refresh_style(self): |
|
727 | def refresh_style(self): | |
728 | # No-op here, used in subclass |
|
728 | # No-op here, used in subclass | |
729 | pass |
|
729 | pass | |
730 |
|
730 | |||
731 | def init_pushd_popd_magic(self): |
|
731 | def init_pushd_popd_magic(self): | |
732 | # for pushd/popd management |
|
732 | # for pushd/popd management | |
733 | self.home_dir = get_home_dir() |
|
733 | self.home_dir = get_home_dir() | |
734 |
|
734 | |||
735 | self.dir_stack = [] |
|
735 | self.dir_stack = [] | |
736 |
|
736 | |||
737 | def init_logger(self): |
|
737 | def init_logger(self): | |
738 | self.logger = Logger(self.home_dir, logfname='ipython_log.py', |
|
738 | self.logger = Logger(self.home_dir, logfname='ipython_log.py', | |
739 | logmode='rotate') |
|
739 | logmode='rotate') | |
740 |
|
740 | |||
741 | def init_logstart(self): |
|
741 | def init_logstart(self): | |
742 | """Initialize logging in case it was requested at the command line. |
|
742 | """Initialize logging in case it was requested at the command line. | |
743 | """ |
|
743 | """ | |
744 | if self.logappend: |
|
744 | if self.logappend: | |
745 | self.magic('logstart %s append' % self.logappend) |
|
745 | self.magic('logstart %s append' % self.logappend) | |
746 | elif self.logfile: |
|
746 | elif self.logfile: | |
747 | self.magic('logstart %s' % self.logfile) |
|
747 | self.magic('logstart %s' % self.logfile) | |
748 | elif self.logstart: |
|
748 | elif self.logstart: | |
749 | self.magic('logstart') |
|
749 | self.magic('logstart') | |
750 |
|
750 | |||
751 |
|
751 | |||
752 | def init_builtins(self): |
|
752 | def init_builtins(self): | |
753 | # A single, static flag that we set to True. Its presence indicates |
|
753 | # A single, static flag that we set to True. Its presence indicates | |
754 | # that an IPython shell has been created, and we make no attempts at |
|
754 | # that an IPython shell has been created, and we make no attempts at | |
755 | # removing on exit or representing the existence of more than one |
|
755 | # removing on exit or representing the existence of more than one | |
756 | # IPython at a time. |
|
756 | # IPython at a time. | |
757 | builtin_mod.__dict__['__IPYTHON__'] = True |
|
757 | builtin_mod.__dict__['__IPYTHON__'] = True | |
758 | builtin_mod.__dict__['display'] = display |
|
758 | builtin_mod.__dict__['display'] = display | |
759 |
|
759 | |||
760 | self.builtin_trap = BuiltinTrap(shell=self) |
|
760 | self.builtin_trap = BuiltinTrap(shell=self) | |
761 |
|
761 | |||
762 | @observe('colors') |
|
762 | @observe('colors') | |
763 | def init_inspector(self, changes=None): |
|
763 | def init_inspector(self, changes=None): | |
764 | # Object inspector |
|
764 | # Object inspector | |
765 | self.inspector = self.inspector_class( |
|
765 | self.inspector = self.inspector_class( | |
766 | oinspect.InspectColors, |
|
766 | oinspect.InspectColors, | |
767 | PyColorize.ANSICodeColors, |
|
767 | PyColorize.ANSICodeColors, | |
768 | self.colors, |
|
768 | self.colors, | |
769 | self.object_info_string_level, |
|
769 | self.object_info_string_level, | |
770 | ) |
|
770 | ) | |
771 |
|
771 | |||
772 | def init_io(self): |
|
772 | def init_io(self): | |
773 | # implemented in subclasses, TerminalInteractiveShell does call |
|
773 | # implemented in subclasses, TerminalInteractiveShell does call | |
774 | # colorama.init(). |
|
774 | # colorama.init(). | |
775 | pass |
|
775 | pass | |
776 |
|
776 | |||
777 | def init_prompts(self): |
|
777 | def init_prompts(self): | |
778 | # Set system prompts, so that scripts can decide if they are running |
|
778 | # Set system prompts, so that scripts can decide if they are running | |
779 | # interactively. |
|
779 | # interactively. | |
780 | sys.ps1 = 'In : ' |
|
780 | sys.ps1 = 'In : ' | |
781 | sys.ps2 = '...: ' |
|
781 | sys.ps2 = '...: ' | |
782 | sys.ps3 = 'Out: ' |
|
782 | sys.ps3 = 'Out: ' | |
783 |
|
783 | |||
784 | def init_display_formatter(self): |
|
784 | def init_display_formatter(self): | |
785 | self.display_formatter = DisplayFormatter(parent=self) |
|
785 | self.display_formatter = DisplayFormatter(parent=self) | |
786 | self.configurables.append(self.display_formatter) |
|
786 | self.configurables.append(self.display_formatter) | |
787 |
|
787 | |||
788 | def init_display_pub(self): |
|
788 | def init_display_pub(self): | |
789 | self.display_pub = self.display_pub_class(parent=self, shell=self) |
|
789 | self.display_pub = self.display_pub_class(parent=self, shell=self) | |
790 | self.configurables.append(self.display_pub) |
|
790 | self.configurables.append(self.display_pub) | |
791 |
|
791 | |||
792 | def init_data_pub(self): |
|
792 | def init_data_pub(self): | |
793 | if not self.data_pub_class: |
|
793 | if not self.data_pub_class: | |
794 | self.data_pub = None |
|
794 | self.data_pub = None | |
795 | return |
|
795 | return | |
796 | self.data_pub = self.data_pub_class(parent=self) |
|
796 | self.data_pub = self.data_pub_class(parent=self) | |
797 | self.configurables.append(self.data_pub) |
|
797 | self.configurables.append(self.data_pub) | |
798 |
|
798 | |||
799 | def init_displayhook(self): |
|
799 | def init_displayhook(self): | |
800 | # Initialize displayhook, set in/out prompts and printing system |
|
800 | # Initialize displayhook, set in/out prompts and printing system | |
801 | self.displayhook = self.displayhook_class( |
|
801 | self.displayhook = self.displayhook_class( | |
802 | parent=self, |
|
802 | parent=self, | |
803 | shell=self, |
|
803 | shell=self, | |
804 | cache_size=self.cache_size, |
|
804 | cache_size=self.cache_size, | |
805 | ) |
|
805 | ) | |
806 | self.configurables.append(self.displayhook) |
|
806 | self.configurables.append(self.displayhook) | |
807 | # This is a context manager that installs/revmoes the displayhook at |
|
807 | # This is a context manager that installs/revmoes the displayhook at | |
808 | # the appropriate time. |
|
808 | # the appropriate time. | |
809 | self.display_trap = DisplayTrap(hook=self.displayhook) |
|
809 | self.display_trap = DisplayTrap(hook=self.displayhook) | |
810 |
|
810 | |||
811 | @staticmethod |
|
811 | @staticmethod | |
812 | def get_path_links(p: Path): |
|
812 | def get_path_links(p: Path): | |
813 | """Gets path links including all symlinks |
|
813 | """Gets path links including all symlinks | |
814 |
|
814 | |||
815 | Examples |
|
815 | Examples | |
816 | -------- |
|
816 | -------- | |
817 | In [1]: from IPython.core.interactiveshell import InteractiveShell |
|
817 | In [1]: from IPython.core.interactiveshell import InteractiveShell | |
818 |
|
818 | |||
819 | In [2]: import sys, pathlib |
|
819 | In [2]: import sys, pathlib | |
820 |
|
820 | |||
821 | In [3]: paths = InteractiveShell.get_path_links(pathlib.Path(sys.executable)) |
|
821 | In [3]: paths = InteractiveShell.get_path_links(pathlib.Path(sys.executable)) | |
822 |
|
822 | |||
823 | In [4]: len(paths) == len(set(paths)) |
|
823 | In [4]: len(paths) == len(set(paths)) | |
824 | Out[4]: True |
|
824 | Out[4]: True | |
825 |
|
825 | |||
826 | In [5]: bool(paths) |
|
826 | In [5]: bool(paths) | |
827 | Out[5]: True |
|
827 | Out[5]: True | |
828 | """ |
|
828 | """ | |
829 | paths = [p] |
|
829 | paths = [p] | |
830 | while p.is_symlink(): |
|
830 | while p.is_symlink(): | |
831 | new_path = Path(os.readlink(p)) |
|
831 | new_path = Path(os.readlink(p)) | |
832 | if not new_path.is_absolute(): |
|
832 | if not new_path.is_absolute(): | |
833 | new_path = p.parent / new_path |
|
833 | new_path = p.parent / new_path | |
834 | p = new_path |
|
834 | p = new_path | |
835 | paths.append(p) |
|
835 | paths.append(p) | |
836 | return paths |
|
836 | return paths | |
837 |
|
837 | |||
838 | def init_virtualenv(self): |
|
838 | def init_virtualenv(self): | |
839 | """Add the current virtualenv to sys.path so the user can import modules from it. |
|
839 | """Add the current virtualenv to sys.path so the user can import modules from it. | |
840 | This isn't perfect: it doesn't use the Python interpreter with which the |
|
840 | This isn't perfect: it doesn't use the Python interpreter with which the | |
841 | virtualenv was built, and it ignores the --no-site-packages option. A |
|
841 | virtualenv was built, and it ignores the --no-site-packages option. A | |
842 | warning will appear suggesting the user installs IPython in the |
|
842 | warning will appear suggesting the user installs IPython in the | |
843 | virtualenv, but for many cases, it probably works well enough. |
|
843 | virtualenv, but for many cases, it probably works well enough. | |
844 |
|
844 | |||
845 | Adapted from code snippets online. |
|
845 | Adapted from code snippets online. | |
846 |
|
846 | |||
847 | http://blog.ufsoft.org/2009/1/29/ipython-and-virtualenv |
|
847 | http://blog.ufsoft.org/2009/1/29/ipython-and-virtualenv | |
848 | """ |
|
848 | """ | |
849 | if 'VIRTUAL_ENV' not in os.environ: |
|
849 | if 'VIRTUAL_ENV' not in os.environ: | |
850 | # Not in a virtualenv |
|
850 | # Not in a virtualenv | |
851 | return |
|
851 | return | |
852 | elif os.environ["VIRTUAL_ENV"] == "": |
|
852 | elif os.environ["VIRTUAL_ENV"] == "": | |
853 | warn("Virtual env path set to '', please check if this is intended.") |
|
853 | warn("Virtual env path set to '', please check if this is intended.") | |
854 | return |
|
854 | return | |
855 |
|
855 | |||
856 | p = Path(sys.executable) |
|
856 | p = Path(sys.executable) | |
857 | p_venv = Path(os.environ["VIRTUAL_ENV"]) |
|
857 | p_venv = Path(os.environ["VIRTUAL_ENV"]) | |
858 |
|
858 | |||
859 | # fallback venv detection: |
|
859 | # fallback venv detection: | |
860 | # stdlib venv may symlink sys.executable, so we can't use realpath. |
|
860 | # stdlib venv may symlink sys.executable, so we can't use realpath. | |
861 | # but others can symlink *to* the venv Python, so we can't just use sys.executable. |
|
861 | # but others can symlink *to* the venv Python, so we can't just use sys.executable. | |
862 | # So we just check every item in the symlink tree (generally <= 3) |
|
862 | # So we just check every item in the symlink tree (generally <= 3) | |
863 | paths = self.get_path_links(p) |
|
863 | paths = self.get_path_links(p) | |
864 |
|
864 | |||
865 | # In Cygwin paths like "c:\..." and '\cygdrive\c\...' are possible |
|
865 | # In Cygwin paths like "c:\..." and '\cygdrive\c\...' are possible | |
866 | if p_venv.parts[1] == "cygdrive": |
|
866 | if p_venv.parts[1] == "cygdrive": | |
867 | drive_name = p_venv.parts[2] |
|
867 | drive_name = p_venv.parts[2] | |
868 | p_venv = (drive_name + ":/") / Path(*p_venv.parts[3:]) |
|
868 | p_venv = (drive_name + ":/") / Path(*p_venv.parts[3:]) | |
869 |
|
869 | |||
870 | if any(p_venv == p.parents[1] for p in paths): |
|
870 | if any(p_venv == p.parents[1] for p in paths): | |
871 | # Our exe is inside or has access to the virtualenv, don't need to do anything. |
|
871 | # Our exe is inside or has access to the virtualenv, don't need to do anything. | |
872 | return |
|
872 | return | |
873 |
|
873 | |||
874 | if sys.platform == "win32": |
|
874 | if sys.platform == "win32": | |
875 | virtual_env = str(Path(os.environ["VIRTUAL_ENV"], "Lib", "site-packages")) |
|
875 | virtual_env = str(Path(os.environ["VIRTUAL_ENV"], "Lib", "site-packages")) | |
876 | else: |
|
876 | else: | |
877 | virtual_env_path = Path( |
|
877 | virtual_env_path = Path( | |
878 | os.environ["VIRTUAL_ENV"], "lib", "python{}.{}", "site-packages" |
|
878 | os.environ["VIRTUAL_ENV"], "lib", "python{}.{}", "site-packages" | |
879 | ) |
|
879 | ) | |
880 | p_ver = sys.version_info[:2] |
|
880 | p_ver = sys.version_info[:2] | |
881 |
|
881 | |||
882 | # Predict version from py[thon]-x.x in the $VIRTUAL_ENV |
|
882 | # Predict version from py[thon]-x.x in the $VIRTUAL_ENV | |
883 | re_m = re.search(r"\bpy(?:thon)?([23])\.(\d+)\b", os.environ["VIRTUAL_ENV"]) |
|
883 | re_m = re.search(r"\bpy(?:thon)?([23])\.(\d+)\b", os.environ["VIRTUAL_ENV"]) | |
884 | if re_m: |
|
884 | if re_m: | |
885 | predicted_path = Path(str(virtual_env_path).format(*re_m.groups())) |
|
885 | predicted_path = Path(str(virtual_env_path).format(*re_m.groups())) | |
886 | if predicted_path.exists(): |
|
886 | if predicted_path.exists(): | |
887 | p_ver = re_m.groups() |
|
887 | p_ver = re_m.groups() | |
888 |
|
888 | |||
889 | virtual_env = str(virtual_env_path).format(*p_ver) |
|
889 | virtual_env = str(virtual_env_path).format(*p_ver) | |
890 | if self.warn_venv: |
|
890 | if self.warn_venv: | |
891 | warn( |
|
891 | warn( | |
892 | "Attempting to work in a virtualenv. If you encounter problems, " |
|
892 | "Attempting to work in a virtualenv. If you encounter problems, " | |
893 | "please install IPython inside the virtualenv." |
|
893 | "please install IPython inside the virtualenv." | |
894 | ) |
|
894 | ) | |
895 | import site |
|
895 | import site | |
896 | sys.path.insert(0, virtual_env) |
|
896 | sys.path.insert(0, virtual_env) | |
897 | site.addsitedir(virtual_env) |
|
897 | site.addsitedir(virtual_env) | |
898 |
|
898 | |||
899 | #------------------------------------------------------------------------- |
|
899 | #------------------------------------------------------------------------- | |
900 | # Things related to injections into the sys module |
|
900 | # Things related to injections into the sys module | |
901 | #------------------------------------------------------------------------- |
|
901 | #------------------------------------------------------------------------- | |
902 |
|
902 | |||
903 | def save_sys_module_state(self): |
|
903 | def save_sys_module_state(self): | |
904 | """Save the state of hooks in the sys module. |
|
904 | """Save the state of hooks in the sys module. | |
905 |
|
905 | |||
906 | This has to be called after self.user_module is created. |
|
906 | This has to be called after self.user_module is created. | |
907 | """ |
|
907 | """ | |
908 | self._orig_sys_module_state = {'stdin': sys.stdin, |
|
908 | self._orig_sys_module_state = {'stdin': sys.stdin, | |
909 | 'stdout': sys.stdout, |
|
909 | 'stdout': sys.stdout, | |
910 | 'stderr': sys.stderr, |
|
910 | 'stderr': sys.stderr, | |
911 | 'excepthook': sys.excepthook} |
|
911 | 'excepthook': sys.excepthook} | |
912 | self._orig_sys_modules_main_name = self.user_module.__name__ |
|
912 | self._orig_sys_modules_main_name = self.user_module.__name__ | |
913 | self._orig_sys_modules_main_mod = sys.modules.get(self.user_module.__name__) |
|
913 | self._orig_sys_modules_main_mod = sys.modules.get(self.user_module.__name__) | |
914 |
|
914 | |||
915 | def restore_sys_module_state(self): |
|
915 | def restore_sys_module_state(self): | |
916 | """Restore the state of the sys module.""" |
|
916 | """Restore the state of the sys module.""" | |
917 | try: |
|
917 | try: | |
918 | for k, v in self._orig_sys_module_state.items(): |
|
918 | for k, v in self._orig_sys_module_state.items(): | |
919 | setattr(sys, k, v) |
|
919 | setattr(sys, k, v) | |
920 | except AttributeError: |
|
920 | except AttributeError: | |
921 | pass |
|
921 | pass | |
922 | # Reset what what done in self.init_sys_modules |
|
922 | # Reset what what done in self.init_sys_modules | |
923 | if self._orig_sys_modules_main_mod is not None: |
|
923 | if self._orig_sys_modules_main_mod is not None: | |
924 | sys.modules[self._orig_sys_modules_main_name] = self._orig_sys_modules_main_mod |
|
924 | sys.modules[self._orig_sys_modules_main_name] = self._orig_sys_modules_main_mod | |
925 |
|
925 | |||
926 | #------------------------------------------------------------------------- |
|
926 | #------------------------------------------------------------------------- | |
927 | # Things related to the banner |
|
927 | # Things related to the banner | |
928 | #------------------------------------------------------------------------- |
|
928 | #------------------------------------------------------------------------- | |
929 |
|
929 | |||
930 | @property |
|
930 | @property | |
931 | def banner(self): |
|
931 | def banner(self): | |
932 | banner = self.banner1 |
|
932 | banner = self.banner1 | |
933 | if self.profile and self.profile != 'default': |
|
933 | if self.profile and self.profile != 'default': | |
934 | banner += '\nIPython profile: %s\n' % self.profile |
|
934 | banner += '\nIPython profile: %s\n' % self.profile | |
935 | if self.banner2: |
|
935 | if self.banner2: | |
936 | banner += '\n' + self.banner2 |
|
936 | banner += '\n' + self.banner2 | |
937 | return banner |
|
937 | return banner | |
938 |
|
938 | |||
939 | def show_banner(self, banner=None): |
|
939 | def show_banner(self, banner=None): | |
940 | if banner is None: |
|
940 | if banner is None: | |
941 | banner = self.banner |
|
941 | banner = self.banner | |
942 | sys.stdout.write(banner) |
|
942 | sys.stdout.write(banner) | |
943 |
|
943 | |||
944 | #------------------------------------------------------------------------- |
|
944 | #------------------------------------------------------------------------- | |
945 | # Things related to hooks |
|
945 | # Things related to hooks | |
946 | #------------------------------------------------------------------------- |
|
946 | #------------------------------------------------------------------------- | |
947 |
|
947 | |||
948 | def init_hooks(self): |
|
948 | def init_hooks(self): | |
949 | # hooks holds pointers used for user-side customizations |
|
949 | # hooks holds pointers used for user-side customizations | |
950 | self.hooks = Struct() |
|
950 | self.hooks = Struct() | |
951 |
|
951 | |||
952 | self.strdispatchers = {} |
|
952 | self.strdispatchers = {} | |
953 |
|
953 | |||
954 | # Set all default hooks, defined in the IPython.hooks module. |
|
954 | # Set all default hooks, defined in the IPython.hooks module. | |
955 | hooks = IPython.core.hooks |
|
955 | hooks = IPython.core.hooks | |
956 | for hook_name in hooks.__all__: |
|
956 | for hook_name in hooks.__all__: | |
957 | # default hooks have priority 100, i.e. low; user hooks should have |
|
957 | # default hooks have priority 100, i.e. low; user hooks should have | |
958 | # 0-100 priority |
|
958 | # 0-100 priority | |
959 | self.set_hook(hook_name, getattr(hooks, hook_name), 100) |
|
959 | self.set_hook(hook_name, getattr(hooks, hook_name), 100) | |
960 |
|
960 | |||
961 | if self.display_page: |
|
961 | if self.display_page: | |
962 | self.set_hook('show_in_pager', page.as_hook(page.display_page), 90) |
|
962 | self.set_hook('show_in_pager', page.as_hook(page.display_page), 90) | |
963 |
|
963 | |||
964 | def set_hook(self, name, hook, priority=50, str_key=None, re_key=None): |
|
964 | def set_hook(self, name, hook, priority=50, str_key=None, re_key=None): | |
965 | """set_hook(name,hook) -> sets an internal IPython hook. |
|
965 | """set_hook(name,hook) -> sets an internal IPython hook. | |
966 |
|
966 | |||
967 | IPython exposes some of its internal API as user-modifiable hooks. By |
|
967 | IPython exposes some of its internal API as user-modifiable hooks. By | |
968 | adding your function to one of these hooks, you can modify IPython's |
|
968 | adding your function to one of these hooks, you can modify IPython's | |
969 | behavior to call at runtime your own routines.""" |
|
969 | behavior to call at runtime your own routines.""" | |
970 |
|
970 | |||
971 | # At some point in the future, this should validate the hook before it |
|
971 | # At some point in the future, this should validate the hook before it | |
972 | # accepts it. Probably at least check that the hook takes the number |
|
972 | # accepts it. Probably at least check that the hook takes the number | |
973 | # of args it's supposed to. |
|
973 | # of args it's supposed to. | |
974 |
|
974 | |||
975 | f = types.MethodType(hook,self) |
|
975 | f = types.MethodType(hook,self) | |
976 |
|
976 | |||
977 | # check if the hook is for strdispatcher first |
|
977 | # check if the hook is for strdispatcher first | |
978 | if str_key is not None: |
|
978 | if str_key is not None: | |
979 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
979 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
980 | sdp.add_s(str_key, f, priority ) |
|
980 | sdp.add_s(str_key, f, priority ) | |
981 | self.strdispatchers[name] = sdp |
|
981 | self.strdispatchers[name] = sdp | |
982 | return |
|
982 | return | |
983 | if re_key is not None: |
|
983 | if re_key is not None: | |
984 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
984 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
985 | sdp.add_re(re.compile(re_key), f, priority ) |
|
985 | sdp.add_re(re.compile(re_key), f, priority ) | |
986 | self.strdispatchers[name] = sdp |
|
986 | self.strdispatchers[name] = sdp | |
987 | return |
|
987 | return | |
988 |
|
988 | |||
989 | dp = getattr(self.hooks, name, None) |
|
989 | dp = getattr(self.hooks, name, None) | |
990 | if name not in IPython.core.hooks.__all__: |
|
990 | if name not in IPython.core.hooks.__all__: | |
991 | print("Warning! Hook '%s' is not one of %s" % \ |
|
991 | print("Warning! Hook '%s' is not one of %s" % \ | |
992 | (name, IPython.core.hooks.__all__ )) |
|
992 | (name, IPython.core.hooks.__all__ )) | |
993 |
|
993 | |||
994 | if name in IPython.core.hooks.deprecated: |
|
994 | if name in IPython.core.hooks.deprecated: | |
995 | alternative = IPython.core.hooks.deprecated[name] |
|
995 | alternative = IPython.core.hooks.deprecated[name] | |
996 | raise ValueError( |
|
996 | raise ValueError( | |
997 | "Hook {} has been deprecated since IPython 5.0. Use {} instead.".format( |
|
997 | "Hook {} has been deprecated since IPython 5.0. Use {} instead.".format( | |
998 | name, alternative |
|
998 | name, alternative | |
999 | ) |
|
999 | ) | |
1000 | ) |
|
1000 | ) | |
1001 |
|
1001 | |||
1002 | if not dp: |
|
1002 | if not dp: | |
1003 | dp = IPython.core.hooks.CommandChainDispatcher() |
|
1003 | dp = IPython.core.hooks.CommandChainDispatcher() | |
1004 |
|
1004 | |||
1005 | try: |
|
1005 | try: | |
1006 | dp.add(f,priority) |
|
1006 | dp.add(f,priority) | |
1007 | except AttributeError: |
|
1007 | except AttributeError: | |
1008 | # it was not commandchain, plain old func - replace |
|
1008 | # it was not commandchain, plain old func - replace | |
1009 | dp = f |
|
1009 | dp = f | |
1010 |
|
1010 | |||
1011 | setattr(self.hooks,name, dp) |
|
1011 | setattr(self.hooks,name, dp) | |
1012 |
|
1012 | |||
1013 | #------------------------------------------------------------------------- |
|
1013 | #------------------------------------------------------------------------- | |
1014 | # Things related to events |
|
1014 | # Things related to events | |
1015 | #------------------------------------------------------------------------- |
|
1015 | #------------------------------------------------------------------------- | |
1016 |
|
1016 | |||
1017 | def init_events(self): |
|
1017 | def init_events(self): | |
1018 | self.events = EventManager(self, available_events) |
|
1018 | self.events = EventManager(self, available_events) | |
1019 |
|
1019 | |||
1020 | self.events.register("pre_execute", self._clear_warning_registry) |
|
1020 | self.events.register("pre_execute", self._clear_warning_registry) | |
1021 |
|
1021 | |||
1022 | def register_post_execute(self, func): |
|
1022 | def register_post_execute(self, func): | |
1023 | """DEPRECATED: Use ip.events.register('post_run_cell', func) |
|
1023 | """DEPRECATED: Use ip.events.register('post_run_cell', func) | |
1024 |
|
1024 | |||
1025 | Register a function for calling after code execution. |
|
1025 | Register a function for calling after code execution. | |
1026 | """ |
|
1026 | """ | |
1027 | raise ValueError( |
|
1027 | raise ValueError( | |
1028 | "ip.register_post_execute is deprecated since IPython 1.0, use " |
|
1028 | "ip.register_post_execute is deprecated since IPython 1.0, use " | |
1029 | "ip.events.register('post_run_cell', func) instead." |
|
1029 | "ip.events.register('post_run_cell', func) instead." | |
1030 | ) |
|
1030 | ) | |
1031 |
|
1031 | |||
1032 | def _clear_warning_registry(self): |
|
1032 | def _clear_warning_registry(self): | |
1033 | # clear the warning registry, so that different code blocks with |
|
1033 | # clear the warning registry, so that different code blocks with | |
1034 | # overlapping line number ranges don't cause spurious suppression of |
|
1034 | # overlapping line number ranges don't cause spurious suppression of | |
1035 | # warnings (see gh-6611 for details) |
|
1035 | # warnings (see gh-6611 for details) | |
1036 | if "__warningregistry__" in self.user_global_ns: |
|
1036 | if "__warningregistry__" in self.user_global_ns: | |
1037 | del self.user_global_ns["__warningregistry__"] |
|
1037 | del self.user_global_ns["__warningregistry__"] | |
1038 |
|
1038 | |||
1039 | #------------------------------------------------------------------------- |
|
1039 | #------------------------------------------------------------------------- | |
1040 | # Things related to the "main" module |
|
1040 | # Things related to the "main" module | |
1041 | #------------------------------------------------------------------------- |
|
1041 | #------------------------------------------------------------------------- | |
1042 |
|
1042 | |||
1043 | def new_main_mod(self, filename, modname): |
|
1043 | def new_main_mod(self, filename, modname): | |
1044 | """Return a new 'main' module object for user code execution. |
|
1044 | """Return a new 'main' module object for user code execution. | |
1045 |
|
1045 | |||
1046 | ``filename`` should be the path of the script which will be run in the |
|
1046 | ``filename`` should be the path of the script which will be run in the | |
1047 | module. Requests with the same filename will get the same module, with |
|
1047 | module. Requests with the same filename will get the same module, with | |
1048 | its namespace cleared. |
|
1048 | its namespace cleared. | |
1049 |
|
1049 | |||
1050 | ``modname`` should be the module name - normally either '__main__' or |
|
1050 | ``modname`` should be the module name - normally either '__main__' or | |
1051 | the basename of the file without the extension. |
|
1051 | the basename of the file without the extension. | |
1052 |
|
1052 | |||
1053 | When scripts are executed via %run, we must keep a reference to their |
|
1053 | When scripts are executed via %run, we must keep a reference to their | |
1054 | __main__ module around so that Python doesn't |
|
1054 | __main__ module around so that Python doesn't | |
1055 | clear it, rendering references to module globals useless. |
|
1055 | clear it, rendering references to module globals useless. | |
1056 |
|
1056 | |||
1057 | This method keeps said reference in a private dict, keyed by the |
|
1057 | This method keeps said reference in a private dict, keyed by the | |
1058 | absolute path of the script. This way, for multiple executions of the |
|
1058 | absolute path of the script. This way, for multiple executions of the | |
1059 | same script we only keep one copy of the namespace (the last one), |
|
1059 | same script we only keep one copy of the namespace (the last one), | |
1060 | thus preventing memory leaks from old references while allowing the |
|
1060 | thus preventing memory leaks from old references while allowing the | |
1061 | objects from the last execution to be accessible. |
|
1061 | objects from the last execution to be accessible. | |
1062 | """ |
|
1062 | """ | |
1063 | filename = os.path.abspath(filename) |
|
1063 | filename = os.path.abspath(filename) | |
1064 | try: |
|
1064 | try: | |
1065 | main_mod = self._main_mod_cache[filename] |
|
1065 | main_mod = self._main_mod_cache[filename] | |
1066 | except KeyError: |
|
1066 | except KeyError: | |
1067 | main_mod = self._main_mod_cache[filename] = types.ModuleType( |
|
1067 | main_mod = self._main_mod_cache[filename] = types.ModuleType( | |
1068 | modname, |
|
1068 | modname, | |
1069 | doc="Module created for script run in IPython") |
|
1069 | doc="Module created for script run in IPython") | |
1070 | else: |
|
1070 | else: | |
1071 | main_mod.__dict__.clear() |
|
1071 | main_mod.__dict__.clear() | |
1072 | main_mod.__name__ = modname |
|
1072 | main_mod.__name__ = modname | |
1073 |
|
1073 | |||
1074 | main_mod.__file__ = filename |
|
1074 | main_mod.__file__ = filename | |
1075 | # It seems pydoc (and perhaps others) needs any module instance to |
|
1075 | # It seems pydoc (and perhaps others) needs any module instance to | |
1076 | # implement a __nonzero__ method |
|
1076 | # implement a __nonzero__ method | |
1077 | main_mod.__nonzero__ = lambda : True |
|
1077 | main_mod.__nonzero__ = lambda : True | |
1078 |
|
1078 | |||
1079 | return main_mod |
|
1079 | return main_mod | |
1080 |
|
1080 | |||
1081 | def clear_main_mod_cache(self): |
|
1081 | def clear_main_mod_cache(self): | |
1082 | """Clear the cache of main modules. |
|
1082 | """Clear the cache of main modules. | |
1083 |
|
1083 | |||
1084 | Mainly for use by utilities like %reset. |
|
1084 | Mainly for use by utilities like %reset. | |
1085 |
|
1085 | |||
1086 | Examples |
|
1086 | Examples | |
1087 | -------- |
|
1087 | -------- | |
1088 | In [15]: import IPython |
|
1088 | In [15]: import IPython | |
1089 |
|
1089 | |||
1090 | In [16]: m = _ip.new_main_mod(IPython.__file__, 'IPython') |
|
1090 | In [16]: m = _ip.new_main_mod(IPython.__file__, 'IPython') | |
1091 |
|
1091 | |||
1092 | In [17]: len(_ip._main_mod_cache) > 0 |
|
1092 | In [17]: len(_ip._main_mod_cache) > 0 | |
1093 | Out[17]: True |
|
1093 | Out[17]: True | |
1094 |
|
1094 | |||
1095 | In [18]: _ip.clear_main_mod_cache() |
|
1095 | In [18]: _ip.clear_main_mod_cache() | |
1096 |
|
1096 | |||
1097 | In [19]: len(_ip._main_mod_cache) == 0 |
|
1097 | In [19]: len(_ip._main_mod_cache) == 0 | |
1098 | Out[19]: True |
|
1098 | Out[19]: True | |
1099 | """ |
|
1099 | """ | |
1100 | self._main_mod_cache.clear() |
|
1100 | self._main_mod_cache.clear() | |
1101 |
|
1101 | |||
1102 | #------------------------------------------------------------------------- |
|
1102 | #------------------------------------------------------------------------- | |
1103 | # Things related to debugging |
|
1103 | # Things related to debugging | |
1104 | #------------------------------------------------------------------------- |
|
1104 | #------------------------------------------------------------------------- | |
1105 |
|
1105 | |||
1106 | def init_pdb(self): |
|
1106 | def init_pdb(self): | |
1107 | # Set calling of pdb on exceptions |
|
1107 | # Set calling of pdb on exceptions | |
1108 | # self.call_pdb is a property |
|
1108 | # self.call_pdb is a property | |
1109 | self.call_pdb = self.pdb |
|
1109 | self.call_pdb = self.pdb | |
1110 |
|
1110 | |||
1111 | def _get_call_pdb(self): |
|
1111 | def _get_call_pdb(self): | |
1112 | return self._call_pdb |
|
1112 | return self._call_pdb | |
1113 |
|
1113 | |||
1114 | def _set_call_pdb(self,val): |
|
1114 | def _set_call_pdb(self,val): | |
1115 |
|
1115 | |||
1116 | if val not in (0,1,False,True): |
|
1116 | if val not in (0,1,False,True): | |
1117 | raise ValueError('new call_pdb value must be boolean') |
|
1117 | raise ValueError('new call_pdb value must be boolean') | |
1118 |
|
1118 | |||
1119 | # store value in instance |
|
1119 | # store value in instance | |
1120 | self._call_pdb = val |
|
1120 | self._call_pdb = val | |
1121 |
|
1121 | |||
1122 | # notify the actual exception handlers |
|
1122 | # notify the actual exception handlers | |
1123 | self.InteractiveTB.call_pdb = val |
|
1123 | self.InteractiveTB.call_pdb = val | |
1124 |
|
1124 | |||
1125 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, |
|
1125 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, | |
1126 | 'Control auto-activation of pdb at exceptions') |
|
1126 | 'Control auto-activation of pdb at exceptions') | |
1127 |
|
1127 | |||
1128 | def debugger(self,force=False): |
|
1128 | def debugger(self,force=False): | |
1129 | """Call the pdb debugger. |
|
1129 | """Call the pdb debugger. | |
1130 |
|
1130 | |||
1131 | Keywords: |
|
1131 | Keywords: | |
1132 |
|
1132 | |||
1133 | - force(False): by default, this routine checks the instance call_pdb |
|
1133 | - force(False): by default, this routine checks the instance call_pdb | |
1134 | flag and does not actually invoke the debugger if the flag is false. |
|
1134 | flag and does not actually invoke the debugger if the flag is false. | |
1135 | The 'force' option forces the debugger to activate even if the flag |
|
1135 | The 'force' option forces the debugger to activate even if the flag | |
1136 | is false. |
|
1136 | is false. | |
1137 | """ |
|
1137 | """ | |
1138 |
|
1138 | |||
1139 | if not (force or self.call_pdb): |
|
1139 | if not (force or self.call_pdb): | |
1140 | return |
|
1140 | return | |
1141 |
|
1141 | |||
1142 | if not hasattr(sys,'last_traceback'): |
|
1142 | if not hasattr(sys,'last_traceback'): | |
1143 | error('No traceback has been produced, nothing to debug.') |
|
1143 | error('No traceback has been produced, nothing to debug.') | |
1144 | return |
|
1144 | return | |
1145 |
|
1145 | |||
1146 | self.InteractiveTB.debugger(force=True) |
|
1146 | self.InteractiveTB.debugger(force=True) | |
1147 |
|
1147 | |||
1148 | #------------------------------------------------------------------------- |
|
1148 | #------------------------------------------------------------------------- | |
1149 | # Things related to IPython's various namespaces |
|
1149 | # Things related to IPython's various namespaces | |
1150 | #------------------------------------------------------------------------- |
|
1150 | #------------------------------------------------------------------------- | |
1151 | default_user_namespaces = True |
|
1151 | default_user_namespaces = True | |
1152 |
|
1152 | |||
1153 | def init_create_namespaces(self, user_module=None, user_ns=None): |
|
1153 | def init_create_namespaces(self, user_module=None, user_ns=None): | |
1154 | # Create the namespace where the user will operate. user_ns is |
|
1154 | # Create the namespace where the user will operate. user_ns is | |
1155 | # normally the only one used, and it is passed to the exec calls as |
|
1155 | # normally the only one used, and it is passed to the exec calls as | |
1156 | # the locals argument. But we do carry a user_global_ns namespace |
|
1156 | # the locals argument. But we do carry a user_global_ns namespace | |
1157 | # given as the exec 'globals' argument, This is useful in embedding |
|
1157 | # given as the exec 'globals' argument, This is useful in embedding | |
1158 | # situations where the ipython shell opens in a context where the |
|
1158 | # situations where the ipython shell opens in a context where the | |
1159 | # distinction between locals and globals is meaningful. For |
|
1159 | # distinction between locals and globals is meaningful. For | |
1160 | # non-embedded contexts, it is just the same object as the user_ns dict. |
|
1160 | # non-embedded contexts, it is just the same object as the user_ns dict. | |
1161 |
|
1161 | |||
1162 | # FIXME. For some strange reason, __builtins__ is showing up at user |
|
1162 | # FIXME. For some strange reason, __builtins__ is showing up at user | |
1163 | # level as a dict instead of a module. This is a manual fix, but I |
|
1163 | # level as a dict instead of a module. This is a manual fix, but I | |
1164 | # should really track down where the problem is coming from. Alex |
|
1164 | # should really track down where the problem is coming from. Alex | |
1165 | # Schmolck reported this problem first. |
|
1165 | # Schmolck reported this problem first. | |
1166 |
|
1166 | |||
1167 | # A useful post by Alex Martelli on this topic: |
|
1167 | # A useful post by Alex Martelli on this topic: | |
1168 | # Re: inconsistent value from __builtins__ |
|
1168 | # Re: inconsistent value from __builtins__ | |
1169 | # Von: Alex Martelli <aleaxit@yahoo.com> |
|
1169 | # Von: Alex Martelli <aleaxit@yahoo.com> | |
1170 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends |
|
1170 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends | |
1171 | # Gruppen: comp.lang.python |
|
1171 | # Gruppen: comp.lang.python | |
1172 |
|
1172 | |||
1173 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: |
|
1173 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: | |
1174 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) |
|
1174 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) | |
1175 | # > <type 'dict'> |
|
1175 | # > <type 'dict'> | |
1176 | # > >>> print type(__builtins__) |
|
1176 | # > >>> print type(__builtins__) | |
1177 | # > <type 'module'> |
|
1177 | # > <type 'module'> | |
1178 | # > Is this difference in return value intentional? |
|
1178 | # > Is this difference in return value intentional? | |
1179 |
|
1179 | |||
1180 | # Well, it's documented that '__builtins__' can be either a dictionary |
|
1180 | # Well, it's documented that '__builtins__' can be either a dictionary | |
1181 | # or a module, and it's been that way for a long time. Whether it's |
|
1181 | # or a module, and it's been that way for a long time. Whether it's | |
1182 | # intentional (or sensible), I don't know. In any case, the idea is |
|
1182 | # intentional (or sensible), I don't know. In any case, the idea is | |
1183 | # that if you need to access the built-in namespace directly, you |
|
1183 | # that if you need to access the built-in namespace directly, you | |
1184 | # should start with "import __builtin__" (note, no 's') which will |
|
1184 | # should start with "import __builtin__" (note, no 's') which will | |
1185 | # definitely give you a module. Yeah, it's somewhat confusing:-(. |
|
1185 | # definitely give you a module. Yeah, it's somewhat confusing:-(. | |
1186 |
|
1186 | |||
1187 | # These routines return a properly built module and dict as needed by |
|
1187 | # These routines return a properly built module and dict as needed by | |
1188 | # the rest of the code, and can also be used by extension writers to |
|
1188 | # the rest of the code, and can also be used by extension writers to | |
1189 | # generate properly initialized namespaces. |
|
1189 | # generate properly initialized namespaces. | |
1190 | if (user_ns is not None) or (user_module is not None): |
|
1190 | if (user_ns is not None) or (user_module is not None): | |
1191 | self.default_user_namespaces = False |
|
1191 | self.default_user_namespaces = False | |
1192 | self.user_module, self.user_ns = self.prepare_user_module(user_module, user_ns) |
|
1192 | self.user_module, self.user_ns = self.prepare_user_module(user_module, user_ns) | |
1193 |
|
1193 | |||
1194 | # A record of hidden variables we have added to the user namespace, so |
|
1194 | # A record of hidden variables we have added to the user namespace, so | |
1195 | # we can list later only variables defined in actual interactive use. |
|
1195 | # we can list later only variables defined in actual interactive use. | |
1196 | self.user_ns_hidden = {} |
|
1196 | self.user_ns_hidden = {} | |
1197 |
|
1197 | |||
1198 | # Now that FakeModule produces a real module, we've run into a nasty |
|
1198 | # Now that FakeModule produces a real module, we've run into a nasty | |
1199 | # problem: after script execution (via %run), the module where the user |
|
1199 | # problem: after script execution (via %run), the module where the user | |
1200 | # code ran is deleted. Now that this object is a true module (needed |
|
1200 | # code ran is deleted. Now that this object is a true module (needed | |
1201 | # so doctest and other tools work correctly), the Python module |
|
1201 | # so doctest and other tools work correctly), the Python module | |
1202 | # teardown mechanism runs over it, and sets to None every variable |
|
1202 | # teardown mechanism runs over it, and sets to None every variable | |
1203 | # present in that module. Top-level references to objects from the |
|
1203 | # present in that module. Top-level references to objects from the | |
1204 | # script survive, because the user_ns is updated with them. However, |
|
1204 | # script survive, because the user_ns is updated with them. However, | |
1205 | # calling functions defined in the script that use other things from |
|
1205 | # calling functions defined in the script that use other things from | |
1206 | # the script will fail, because the function's closure had references |
|
1206 | # the script will fail, because the function's closure had references | |
1207 | # to the original objects, which are now all None. So we must protect |
|
1207 | # to the original objects, which are now all None. So we must protect | |
1208 | # these modules from deletion by keeping a cache. |
|
1208 | # these modules from deletion by keeping a cache. | |
1209 | # |
|
1209 | # | |
1210 | # To avoid keeping stale modules around (we only need the one from the |
|
1210 | # To avoid keeping stale modules around (we only need the one from the | |
1211 | # last run), we use a dict keyed with the full path to the script, so |
|
1211 | # last run), we use a dict keyed with the full path to the script, so | |
1212 | # only the last version of the module is held in the cache. Note, |
|
1212 | # only the last version of the module is held in the cache. Note, | |
1213 | # however, that we must cache the module *namespace contents* (their |
|
1213 | # however, that we must cache the module *namespace contents* (their | |
1214 | # __dict__). Because if we try to cache the actual modules, old ones |
|
1214 | # __dict__). Because if we try to cache the actual modules, old ones | |
1215 | # (uncached) could be destroyed while still holding references (such as |
|
1215 | # (uncached) could be destroyed while still holding references (such as | |
1216 | # those held by GUI objects that tend to be long-lived)> |
|
1216 | # those held by GUI objects that tend to be long-lived)> | |
1217 | # |
|
1217 | # | |
1218 | # The %reset command will flush this cache. See the cache_main_mod() |
|
1218 | # The %reset command will flush this cache. See the cache_main_mod() | |
1219 | # and clear_main_mod_cache() methods for details on use. |
|
1219 | # and clear_main_mod_cache() methods for details on use. | |
1220 |
|
1220 | |||
1221 | # This is the cache used for 'main' namespaces |
|
1221 | # This is the cache used for 'main' namespaces | |
1222 | self._main_mod_cache = {} |
|
1222 | self._main_mod_cache = {} | |
1223 |
|
1223 | |||
1224 | # A table holding all the namespaces IPython deals with, so that |
|
1224 | # A table holding all the namespaces IPython deals with, so that | |
1225 | # introspection facilities can search easily. |
|
1225 | # introspection facilities can search easily. | |
1226 | self.ns_table = {'user_global':self.user_module.__dict__, |
|
1226 | self.ns_table = {'user_global':self.user_module.__dict__, | |
1227 | 'user_local':self.user_ns, |
|
1227 | 'user_local':self.user_ns, | |
1228 | 'builtin':builtin_mod.__dict__ |
|
1228 | 'builtin':builtin_mod.__dict__ | |
1229 | } |
|
1229 | } | |
1230 |
|
1230 | |||
1231 | @property |
|
1231 | @property | |
1232 | def user_global_ns(self): |
|
1232 | def user_global_ns(self): | |
1233 | return self.user_module.__dict__ |
|
1233 | return self.user_module.__dict__ | |
1234 |
|
1234 | |||
1235 | def prepare_user_module(self, user_module=None, user_ns=None): |
|
1235 | def prepare_user_module(self, user_module=None, user_ns=None): | |
1236 | """Prepare the module and namespace in which user code will be run. |
|
1236 | """Prepare the module and namespace in which user code will be run. | |
1237 |
|
1237 | |||
1238 | When IPython is started normally, both parameters are None: a new module |
|
1238 | When IPython is started normally, both parameters are None: a new module | |
1239 | is created automatically, and its __dict__ used as the namespace. |
|
1239 | is created automatically, and its __dict__ used as the namespace. | |
1240 |
|
1240 | |||
1241 | If only user_module is provided, its __dict__ is used as the namespace. |
|
1241 | If only user_module is provided, its __dict__ is used as the namespace. | |
1242 | If only user_ns is provided, a dummy module is created, and user_ns |
|
1242 | If only user_ns is provided, a dummy module is created, and user_ns | |
1243 | becomes the global namespace. If both are provided (as they may be |
|
1243 | becomes the global namespace. If both are provided (as they may be | |
1244 | when embedding), user_ns is the local namespace, and user_module |
|
1244 | when embedding), user_ns is the local namespace, and user_module | |
1245 | provides the global namespace. |
|
1245 | provides the global namespace. | |
1246 |
|
1246 | |||
1247 | Parameters |
|
1247 | Parameters | |
1248 | ---------- |
|
1248 | ---------- | |
1249 | user_module : module, optional |
|
1249 | user_module : module, optional | |
1250 | The current user module in which IPython is being run. If None, |
|
1250 | The current user module in which IPython is being run. If None, | |
1251 | a clean module will be created. |
|
1251 | a clean module will be created. | |
1252 | user_ns : dict, optional |
|
1252 | user_ns : dict, optional | |
1253 | A namespace in which to run interactive commands. |
|
1253 | A namespace in which to run interactive commands. | |
1254 |
|
1254 | |||
1255 | Returns |
|
1255 | Returns | |
1256 | ------- |
|
1256 | ------- | |
1257 | A tuple of user_module and user_ns, each properly initialised. |
|
1257 | A tuple of user_module and user_ns, each properly initialised. | |
1258 | """ |
|
1258 | """ | |
1259 | if user_module is None and user_ns is not None: |
|
1259 | if user_module is None and user_ns is not None: | |
1260 | user_ns.setdefault("__name__", "__main__") |
|
1260 | user_ns.setdefault("__name__", "__main__") | |
1261 | user_module = DummyMod() |
|
1261 | user_module = DummyMod() | |
1262 | user_module.__dict__ = user_ns |
|
1262 | user_module.__dict__ = user_ns | |
1263 |
|
1263 | |||
1264 | if user_module is None: |
|
1264 | if user_module is None: | |
1265 | user_module = types.ModuleType("__main__", |
|
1265 | user_module = types.ModuleType("__main__", | |
1266 | doc="Automatically created module for IPython interactive environment") |
|
1266 | doc="Automatically created module for IPython interactive environment") | |
1267 |
|
1267 | |||
1268 | # We must ensure that __builtin__ (without the final 's') is always |
|
1268 | # We must ensure that __builtin__ (without the final 's') is always | |
1269 | # available and pointing to the __builtin__ *module*. For more details: |
|
1269 | # available and pointing to the __builtin__ *module*. For more details: | |
1270 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html |
|
1270 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html | |
1271 | user_module.__dict__.setdefault('__builtin__', builtin_mod) |
|
1271 | user_module.__dict__.setdefault('__builtin__', builtin_mod) | |
1272 | user_module.__dict__.setdefault('__builtins__', builtin_mod) |
|
1272 | user_module.__dict__.setdefault('__builtins__', builtin_mod) | |
1273 |
|
1273 | |||
1274 | if user_ns is None: |
|
1274 | if user_ns is None: | |
1275 | user_ns = user_module.__dict__ |
|
1275 | user_ns = user_module.__dict__ | |
1276 |
|
1276 | |||
1277 | return user_module, user_ns |
|
1277 | return user_module, user_ns | |
1278 |
|
1278 | |||
1279 | def init_sys_modules(self): |
|
1279 | def init_sys_modules(self): | |
1280 | # We need to insert into sys.modules something that looks like a |
|
1280 | # We need to insert into sys.modules something that looks like a | |
1281 | # module but which accesses the IPython namespace, for shelve and |
|
1281 | # module but which accesses the IPython namespace, for shelve and | |
1282 | # pickle to work interactively. Normally they rely on getting |
|
1282 | # pickle to work interactively. Normally they rely on getting | |
1283 | # everything out of __main__, but for embedding purposes each IPython |
|
1283 | # everything out of __main__, but for embedding purposes each IPython | |
1284 | # instance has its own private namespace, so we can't go shoving |
|
1284 | # instance has its own private namespace, so we can't go shoving | |
1285 | # everything into __main__. |
|
1285 | # everything into __main__. | |
1286 |
|
1286 | |||
1287 | # note, however, that we should only do this for non-embedded |
|
1287 | # note, however, that we should only do this for non-embedded | |
1288 | # ipythons, which really mimic the __main__.__dict__ with their own |
|
1288 | # ipythons, which really mimic the __main__.__dict__ with their own | |
1289 | # namespace. Embedded instances, on the other hand, should not do |
|
1289 | # namespace. Embedded instances, on the other hand, should not do | |
1290 | # this because they need to manage the user local/global namespaces |
|
1290 | # this because they need to manage the user local/global namespaces | |
1291 | # only, but they live within a 'normal' __main__ (meaning, they |
|
1291 | # only, but they live within a 'normal' __main__ (meaning, they | |
1292 | # shouldn't overtake the execution environment of the script they're |
|
1292 | # shouldn't overtake the execution environment of the script they're | |
1293 | # embedded in). |
|
1293 | # embedded in). | |
1294 |
|
1294 | |||
1295 | # This is overridden in the InteractiveShellEmbed subclass to a no-op. |
|
1295 | # This is overridden in the InteractiveShellEmbed subclass to a no-op. | |
1296 | main_name = self.user_module.__name__ |
|
1296 | main_name = self.user_module.__name__ | |
1297 | sys.modules[main_name] = self.user_module |
|
1297 | sys.modules[main_name] = self.user_module | |
1298 |
|
1298 | |||
1299 | def init_user_ns(self): |
|
1299 | def init_user_ns(self): | |
1300 | """Initialize all user-visible namespaces to their minimum defaults. |
|
1300 | """Initialize all user-visible namespaces to their minimum defaults. | |
1301 |
|
1301 | |||
1302 | Certain history lists are also initialized here, as they effectively |
|
1302 | Certain history lists are also initialized here, as they effectively | |
1303 | act as user namespaces. |
|
1303 | act as user namespaces. | |
1304 |
|
1304 | |||
1305 | Notes |
|
1305 | Notes | |
1306 | ----- |
|
1306 | ----- | |
1307 | All data structures here are only filled in, they are NOT reset by this |
|
1307 | All data structures here are only filled in, they are NOT reset by this | |
1308 | method. If they were not empty before, data will simply be added to |
|
1308 | method. If they were not empty before, data will simply be added to | |
1309 | them. |
|
1309 | them. | |
1310 | """ |
|
1310 | """ | |
1311 | # This function works in two parts: first we put a few things in |
|
1311 | # This function works in two parts: first we put a few things in | |
1312 | # user_ns, and we sync that contents into user_ns_hidden so that these |
|
1312 | # user_ns, and we sync that contents into user_ns_hidden so that these | |
1313 | # initial variables aren't shown by %who. After the sync, we add the |
|
1313 | # initial variables aren't shown by %who. After the sync, we add the | |
1314 | # rest of what we *do* want the user to see with %who even on a new |
|
1314 | # rest of what we *do* want the user to see with %who even on a new | |
1315 | # session (probably nothing, so they really only see their own stuff) |
|
1315 | # session (probably nothing, so they really only see their own stuff) | |
1316 |
|
1316 | |||
1317 | # The user dict must *always* have a __builtin__ reference to the |
|
1317 | # The user dict must *always* have a __builtin__ reference to the | |
1318 | # Python standard __builtin__ namespace, which must be imported. |
|
1318 | # Python standard __builtin__ namespace, which must be imported. | |
1319 | # This is so that certain operations in prompt evaluation can be |
|
1319 | # This is so that certain operations in prompt evaluation can be | |
1320 | # reliably executed with builtins. Note that we can NOT use |
|
1320 | # reliably executed with builtins. Note that we can NOT use | |
1321 | # __builtins__ (note the 's'), because that can either be a dict or a |
|
1321 | # __builtins__ (note the 's'), because that can either be a dict or a | |
1322 | # module, and can even mutate at runtime, depending on the context |
|
1322 | # module, and can even mutate at runtime, depending on the context | |
1323 | # (Python makes no guarantees on it). In contrast, __builtin__ is |
|
1323 | # (Python makes no guarantees on it). In contrast, __builtin__ is | |
1324 | # always a module object, though it must be explicitly imported. |
|
1324 | # always a module object, though it must be explicitly imported. | |
1325 |
|
1325 | |||
1326 | # For more details: |
|
1326 | # For more details: | |
1327 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html |
|
1327 | # http://mail.python.org/pipermail/python-dev/2001-April/014068.html | |
1328 | ns = {} |
|
1328 | ns = {} | |
1329 |
|
1329 | |||
1330 | # make global variables for user access to the histories |
|
1330 | # make global variables for user access to the histories | |
1331 | ns['_ih'] = self.history_manager.input_hist_parsed |
|
1331 | ns['_ih'] = self.history_manager.input_hist_parsed | |
1332 | ns['_oh'] = self.history_manager.output_hist |
|
1332 | ns['_oh'] = self.history_manager.output_hist | |
1333 | ns['_dh'] = self.history_manager.dir_hist |
|
1333 | ns['_dh'] = self.history_manager.dir_hist | |
1334 |
|
1334 | |||
1335 | # user aliases to input and output histories. These shouldn't show up |
|
1335 | # user aliases to input and output histories. These shouldn't show up | |
1336 | # in %who, as they can have very large reprs. |
|
1336 | # in %who, as they can have very large reprs. | |
1337 | ns['In'] = self.history_manager.input_hist_parsed |
|
1337 | ns['In'] = self.history_manager.input_hist_parsed | |
1338 | ns['Out'] = self.history_manager.output_hist |
|
1338 | ns['Out'] = self.history_manager.output_hist | |
1339 |
|
1339 | |||
1340 | # Store myself as the public api!!! |
|
1340 | # Store myself as the public api!!! | |
1341 | ns['get_ipython'] = self.get_ipython |
|
1341 | ns['get_ipython'] = self.get_ipython | |
1342 |
|
1342 | |||
1343 | ns['exit'] = self.exiter |
|
1343 | ns['exit'] = self.exiter | |
1344 | ns['quit'] = self.exiter |
|
1344 | ns['quit'] = self.exiter | |
1345 | ns["open"] = _modified_open |
|
1345 | ns["open"] = _modified_open | |
1346 |
|
1346 | |||
1347 | # Sync what we've added so far to user_ns_hidden so these aren't seen |
|
1347 | # Sync what we've added so far to user_ns_hidden so these aren't seen | |
1348 | # by %who |
|
1348 | # by %who | |
1349 | self.user_ns_hidden.update(ns) |
|
1349 | self.user_ns_hidden.update(ns) | |
1350 |
|
1350 | |||
1351 | # Anything put into ns now would show up in %who. Think twice before |
|
1351 | # Anything put into ns now would show up in %who. Think twice before | |
1352 | # putting anything here, as we really want %who to show the user their |
|
1352 | # putting anything here, as we really want %who to show the user their | |
1353 | # stuff, not our variables. |
|
1353 | # stuff, not our variables. | |
1354 |
|
1354 | |||
1355 | # Finally, update the real user's namespace |
|
1355 | # Finally, update the real user's namespace | |
1356 | self.user_ns.update(ns) |
|
1356 | self.user_ns.update(ns) | |
1357 |
|
1357 | |||
1358 | @property |
|
1358 | @property | |
1359 | def all_ns_refs(self): |
|
1359 | def all_ns_refs(self): | |
1360 | """Get a list of references to all the namespace dictionaries in which |
|
1360 | """Get a list of references to all the namespace dictionaries in which | |
1361 | IPython might store a user-created object. |
|
1361 | IPython might store a user-created object. | |
1362 |
|
1362 | |||
1363 | Note that this does not include the displayhook, which also caches |
|
1363 | Note that this does not include the displayhook, which also caches | |
1364 | objects from the output.""" |
|
1364 | objects from the output.""" | |
1365 | return [self.user_ns, self.user_global_ns, self.user_ns_hidden] + \ |
|
1365 | return [self.user_ns, self.user_global_ns, self.user_ns_hidden] + \ | |
1366 | [m.__dict__ for m in self._main_mod_cache.values()] |
|
1366 | [m.__dict__ for m in self._main_mod_cache.values()] | |
1367 |
|
1367 | |||
1368 | def reset(self, new_session=True, aggressive=False): |
|
1368 | def reset(self, new_session=True, aggressive=False): | |
1369 | """Clear all internal namespaces, and attempt to release references to |
|
1369 | """Clear all internal namespaces, and attempt to release references to | |
1370 | user objects. |
|
1370 | user objects. | |
1371 |
|
1371 | |||
1372 | If new_session is True, a new history session will be opened. |
|
1372 | If new_session is True, a new history session will be opened. | |
1373 | """ |
|
1373 | """ | |
1374 | # Clear histories |
|
1374 | # Clear histories | |
1375 | self.history_manager.reset(new_session) |
|
1375 | self.history_manager.reset(new_session) | |
1376 | # Reset counter used to index all histories |
|
1376 | # Reset counter used to index all histories | |
1377 | if new_session: |
|
1377 | if new_session: | |
1378 | self.execution_count = 1 |
|
1378 | self.execution_count = 1 | |
1379 |
|
1379 | |||
1380 | # Reset last execution result |
|
1380 | # Reset last execution result | |
1381 | self.last_execution_succeeded = True |
|
1381 | self.last_execution_succeeded = True | |
1382 | self.last_execution_result = None |
|
1382 | self.last_execution_result = None | |
1383 |
|
1383 | |||
1384 | # Flush cached output items |
|
1384 | # Flush cached output items | |
1385 | if self.displayhook.do_full_cache: |
|
1385 | if self.displayhook.do_full_cache: | |
1386 | self.displayhook.flush() |
|
1386 | self.displayhook.flush() | |
1387 |
|
1387 | |||
1388 | # The main execution namespaces must be cleared very carefully, |
|
1388 | # The main execution namespaces must be cleared very carefully, | |
1389 | # skipping the deletion of the builtin-related keys, because doing so |
|
1389 | # skipping the deletion of the builtin-related keys, because doing so | |
1390 | # would cause errors in many object's __del__ methods. |
|
1390 | # would cause errors in many object's __del__ methods. | |
1391 | if self.user_ns is not self.user_global_ns: |
|
1391 | if self.user_ns is not self.user_global_ns: | |
1392 | self.user_ns.clear() |
|
1392 | self.user_ns.clear() | |
1393 | ns = self.user_global_ns |
|
1393 | ns = self.user_global_ns | |
1394 | drop_keys = set(ns.keys()) |
|
1394 | drop_keys = set(ns.keys()) | |
1395 | drop_keys.discard('__builtin__') |
|
1395 | drop_keys.discard('__builtin__') | |
1396 | drop_keys.discard('__builtins__') |
|
1396 | drop_keys.discard('__builtins__') | |
1397 | drop_keys.discard('__name__') |
|
1397 | drop_keys.discard('__name__') | |
1398 | for k in drop_keys: |
|
1398 | for k in drop_keys: | |
1399 | del ns[k] |
|
1399 | del ns[k] | |
1400 |
|
1400 | |||
1401 | self.user_ns_hidden.clear() |
|
1401 | self.user_ns_hidden.clear() | |
1402 |
|
1402 | |||
1403 | # Restore the user namespaces to minimal usability |
|
1403 | # Restore the user namespaces to minimal usability | |
1404 | self.init_user_ns() |
|
1404 | self.init_user_ns() | |
1405 | if aggressive and not hasattr(self, "_sys_modules_keys"): |
|
1405 | if aggressive and not hasattr(self, "_sys_modules_keys"): | |
1406 | print("Cannot restore sys.module, no snapshot") |
|
1406 | print("Cannot restore sys.module, no snapshot") | |
1407 | elif aggressive: |
|
1407 | elif aggressive: | |
1408 | print("culling sys module...") |
|
1408 | print("culling sys module...") | |
1409 | current_keys = set(sys.modules.keys()) |
|
1409 | current_keys = set(sys.modules.keys()) | |
1410 | for k in current_keys - self._sys_modules_keys: |
|
1410 | for k in current_keys - self._sys_modules_keys: | |
1411 | if k.startswith("multiprocessing"): |
|
1411 | if k.startswith("multiprocessing"): | |
1412 | continue |
|
1412 | continue | |
1413 | del sys.modules[k] |
|
1413 | del sys.modules[k] | |
1414 |
|
1414 | |||
1415 | # Restore the default and user aliases |
|
1415 | # Restore the default and user aliases | |
1416 | self.alias_manager.clear_aliases() |
|
1416 | self.alias_manager.clear_aliases() | |
1417 | self.alias_manager.init_aliases() |
|
1417 | self.alias_manager.init_aliases() | |
1418 |
|
1418 | |||
1419 | # Now define aliases that only make sense on the terminal, because they |
|
1419 | # Now define aliases that only make sense on the terminal, because they | |
1420 | # need direct access to the console in a way that we can't emulate in |
|
1420 | # need direct access to the console in a way that we can't emulate in | |
1421 | # GUI or web frontend |
|
1421 | # GUI or web frontend | |
1422 | if os.name == 'posix': |
|
1422 | if os.name == 'posix': | |
1423 | for cmd in ('clear', 'more', 'less', 'man'): |
|
1423 | for cmd in ('clear', 'more', 'less', 'man'): | |
1424 | if cmd not in self.magics_manager.magics['line']: |
|
1424 | if cmd not in self.magics_manager.magics['line']: | |
1425 | self.alias_manager.soft_define_alias(cmd, cmd) |
|
1425 | self.alias_manager.soft_define_alias(cmd, cmd) | |
1426 |
|
1426 | |||
1427 | # Flush the private list of module references kept for script |
|
1427 | # Flush the private list of module references kept for script | |
1428 | # execution protection |
|
1428 | # execution protection | |
1429 | self.clear_main_mod_cache() |
|
1429 | self.clear_main_mod_cache() | |
1430 |
|
1430 | |||
1431 | def del_var(self, varname, by_name=False): |
|
1431 | def del_var(self, varname, by_name=False): | |
1432 | """Delete a variable from the various namespaces, so that, as |
|
1432 | """Delete a variable from the various namespaces, so that, as | |
1433 | far as possible, we're not keeping any hidden references to it. |
|
1433 | far as possible, we're not keeping any hidden references to it. | |
1434 |
|
1434 | |||
1435 | Parameters |
|
1435 | Parameters | |
1436 | ---------- |
|
1436 | ---------- | |
1437 | varname : str |
|
1437 | varname : str | |
1438 | The name of the variable to delete. |
|
1438 | The name of the variable to delete. | |
1439 | by_name : bool |
|
1439 | by_name : bool | |
1440 | If True, delete variables with the given name in each |
|
1440 | If True, delete variables with the given name in each | |
1441 | namespace. If False (default), find the variable in the user |
|
1441 | namespace. If False (default), find the variable in the user | |
1442 | namespace, and delete references to it. |
|
1442 | namespace, and delete references to it. | |
1443 | """ |
|
1443 | """ | |
1444 | if varname in ('__builtin__', '__builtins__'): |
|
1444 | if varname in ('__builtin__', '__builtins__'): | |
1445 | raise ValueError("Refusing to delete %s" % varname) |
|
1445 | raise ValueError("Refusing to delete %s" % varname) | |
1446 |
|
1446 | |||
1447 | ns_refs = self.all_ns_refs |
|
1447 | ns_refs = self.all_ns_refs | |
1448 |
|
1448 | |||
1449 | if by_name: # Delete by name |
|
1449 | if by_name: # Delete by name | |
1450 | for ns in ns_refs: |
|
1450 | for ns in ns_refs: | |
1451 | try: |
|
1451 | try: | |
1452 | del ns[varname] |
|
1452 | del ns[varname] | |
1453 | except KeyError: |
|
1453 | except KeyError: | |
1454 | pass |
|
1454 | pass | |
1455 | else: # Delete by object |
|
1455 | else: # Delete by object | |
1456 | try: |
|
1456 | try: | |
1457 | obj = self.user_ns[varname] |
|
1457 | obj = self.user_ns[varname] | |
1458 | except KeyError as e: |
|
1458 | except KeyError as e: | |
1459 | raise NameError("name '%s' is not defined" % varname) from e |
|
1459 | raise NameError("name '%s' is not defined" % varname) from e | |
1460 | # Also check in output history |
|
1460 | # Also check in output history | |
1461 | ns_refs.append(self.history_manager.output_hist) |
|
1461 | ns_refs.append(self.history_manager.output_hist) | |
1462 | for ns in ns_refs: |
|
1462 | for ns in ns_refs: | |
1463 | to_delete = [n for n, o in ns.items() if o is obj] |
|
1463 | to_delete = [n for n, o in ns.items() if o is obj] | |
1464 | for name in to_delete: |
|
1464 | for name in to_delete: | |
1465 | del ns[name] |
|
1465 | del ns[name] | |
1466 |
|
1466 | |||
1467 | # Ensure it is removed from the last execution result |
|
1467 | # Ensure it is removed from the last execution result | |
1468 | if self.last_execution_result.result is obj: |
|
1468 | if self.last_execution_result.result is obj: | |
1469 | self.last_execution_result = None |
|
1469 | self.last_execution_result = None | |
1470 |
|
1470 | |||
1471 | # displayhook keeps extra references, but not in a dictionary |
|
1471 | # displayhook keeps extra references, but not in a dictionary | |
1472 | for name in ('_', '__', '___'): |
|
1472 | for name in ('_', '__', '___'): | |
1473 | if getattr(self.displayhook, name) is obj: |
|
1473 | if getattr(self.displayhook, name) is obj: | |
1474 | setattr(self.displayhook, name, None) |
|
1474 | setattr(self.displayhook, name, None) | |
1475 |
|
1475 | |||
1476 | def reset_selective(self, regex=None): |
|
1476 | def reset_selective(self, regex=None): | |
1477 | """Clear selective variables from internal namespaces based on a |
|
1477 | """Clear selective variables from internal namespaces based on a | |
1478 | specified regular expression. |
|
1478 | specified regular expression. | |
1479 |
|
1479 | |||
1480 | Parameters |
|
1480 | Parameters | |
1481 | ---------- |
|
1481 | ---------- | |
1482 | regex : string or compiled pattern, optional |
|
1482 | regex : string or compiled pattern, optional | |
1483 | A regular expression pattern that will be used in searching |
|
1483 | A regular expression pattern that will be used in searching | |
1484 | variable names in the users namespaces. |
|
1484 | variable names in the users namespaces. | |
1485 | """ |
|
1485 | """ | |
1486 | if regex is not None: |
|
1486 | if regex is not None: | |
1487 | try: |
|
1487 | try: | |
1488 | m = re.compile(regex) |
|
1488 | m = re.compile(regex) | |
1489 | except TypeError as e: |
|
1489 | except TypeError as e: | |
1490 | raise TypeError('regex must be a string or compiled pattern') from e |
|
1490 | raise TypeError('regex must be a string or compiled pattern') from e | |
1491 | # Search for keys in each namespace that match the given regex |
|
1491 | # Search for keys in each namespace that match the given regex | |
1492 | # If a match is found, delete the key/value pair. |
|
1492 | # If a match is found, delete the key/value pair. | |
1493 | for ns in self.all_ns_refs: |
|
1493 | for ns in self.all_ns_refs: | |
1494 | for var in ns: |
|
1494 | for var in ns: | |
1495 | if m.search(var): |
|
1495 | if m.search(var): | |
1496 | del ns[var] |
|
1496 | del ns[var] | |
1497 |
|
1497 | |||
1498 | def push(self, variables, interactive=True): |
|
1498 | def push(self, variables, interactive=True): | |
1499 | """Inject a group of variables into the IPython user namespace. |
|
1499 | """Inject a group of variables into the IPython user namespace. | |
1500 |
|
1500 | |||
1501 | Parameters |
|
1501 | Parameters | |
1502 | ---------- |
|
1502 | ---------- | |
1503 | variables : dict, str or list/tuple of str |
|
1503 | variables : dict, str or list/tuple of str | |
1504 | The variables to inject into the user's namespace. If a dict, a |
|
1504 | The variables to inject into the user's namespace. If a dict, a | |
1505 | simple update is done. If a str, the string is assumed to have |
|
1505 | simple update is done. If a str, the string is assumed to have | |
1506 | variable names separated by spaces. A list/tuple of str can also |
|
1506 | variable names separated by spaces. A list/tuple of str can also | |
1507 | be used to give the variable names. If just the variable names are |
|
1507 | be used to give the variable names. If just the variable names are | |
1508 | give (list/tuple/str) then the variable values looked up in the |
|
1508 | give (list/tuple/str) then the variable values looked up in the | |
1509 | callers frame. |
|
1509 | callers frame. | |
1510 | interactive : bool |
|
1510 | interactive : bool | |
1511 | If True (default), the variables will be listed with the ``who`` |
|
1511 | If True (default), the variables will be listed with the ``who`` | |
1512 | magic. |
|
1512 | magic. | |
1513 | """ |
|
1513 | """ | |
1514 | vdict = None |
|
1514 | vdict = None | |
1515 |
|
1515 | |||
1516 | # We need a dict of name/value pairs to do namespace updates. |
|
1516 | # We need a dict of name/value pairs to do namespace updates. | |
1517 | if isinstance(variables, dict): |
|
1517 | if isinstance(variables, dict): | |
1518 | vdict = variables |
|
1518 | vdict = variables | |
1519 | elif isinstance(variables, (str, list, tuple)): |
|
1519 | elif isinstance(variables, (str, list, tuple)): | |
1520 | if isinstance(variables, str): |
|
1520 | if isinstance(variables, str): | |
1521 | vlist = variables.split() |
|
1521 | vlist = variables.split() | |
1522 | else: |
|
1522 | else: | |
1523 | vlist = variables |
|
1523 | vlist = variables | |
1524 | vdict = {} |
|
1524 | vdict = {} | |
1525 | cf = sys._getframe(1) |
|
1525 | cf = sys._getframe(1) | |
1526 | for name in vlist: |
|
1526 | for name in vlist: | |
1527 | try: |
|
1527 | try: | |
1528 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) |
|
1528 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) | |
1529 | except: |
|
1529 | except: | |
1530 | print('Could not get variable %s from %s' % |
|
1530 | print('Could not get variable %s from %s' % | |
1531 | (name,cf.f_code.co_name)) |
|
1531 | (name,cf.f_code.co_name)) | |
1532 | else: |
|
1532 | else: | |
1533 | raise ValueError('variables must be a dict/str/list/tuple') |
|
1533 | raise ValueError('variables must be a dict/str/list/tuple') | |
1534 |
|
1534 | |||
1535 | # Propagate variables to user namespace |
|
1535 | # Propagate variables to user namespace | |
1536 | self.user_ns.update(vdict) |
|
1536 | self.user_ns.update(vdict) | |
1537 |
|
1537 | |||
1538 | # And configure interactive visibility |
|
1538 | # And configure interactive visibility | |
1539 | user_ns_hidden = self.user_ns_hidden |
|
1539 | user_ns_hidden = self.user_ns_hidden | |
1540 | if interactive: |
|
1540 | if interactive: | |
1541 | for name in vdict: |
|
1541 | for name in vdict: | |
1542 | user_ns_hidden.pop(name, None) |
|
1542 | user_ns_hidden.pop(name, None) | |
1543 | else: |
|
1543 | else: | |
1544 | user_ns_hidden.update(vdict) |
|
1544 | user_ns_hidden.update(vdict) | |
1545 |
|
1545 | |||
1546 | def drop_by_id(self, variables): |
|
1546 | def drop_by_id(self, variables): | |
1547 | """Remove a dict of variables from the user namespace, if they are the |
|
1547 | """Remove a dict of variables from the user namespace, if they are the | |
1548 | same as the values in the dictionary. |
|
1548 | same as the values in the dictionary. | |
1549 |
|
1549 | |||
1550 | This is intended for use by extensions: variables that they've added can |
|
1550 | This is intended for use by extensions: variables that they've added can | |
1551 | be taken back out if they are unloaded, without removing any that the |
|
1551 | be taken back out if they are unloaded, without removing any that the | |
1552 | user has overwritten. |
|
1552 | user has overwritten. | |
1553 |
|
1553 | |||
1554 | Parameters |
|
1554 | Parameters | |
1555 | ---------- |
|
1555 | ---------- | |
1556 | variables : dict |
|
1556 | variables : dict | |
1557 | A dictionary mapping object names (as strings) to the objects. |
|
1557 | A dictionary mapping object names (as strings) to the objects. | |
1558 | """ |
|
1558 | """ | |
1559 | for name, obj in variables.items(): |
|
1559 | for name, obj in variables.items(): | |
1560 | if name in self.user_ns and self.user_ns[name] is obj: |
|
1560 | if name in self.user_ns and self.user_ns[name] is obj: | |
1561 | del self.user_ns[name] |
|
1561 | del self.user_ns[name] | |
1562 | self.user_ns_hidden.pop(name, None) |
|
1562 | self.user_ns_hidden.pop(name, None) | |
1563 |
|
1563 | |||
1564 | #------------------------------------------------------------------------- |
|
1564 | #------------------------------------------------------------------------- | |
1565 | # Things related to object introspection |
|
1565 | # Things related to object introspection | |
1566 | #------------------------------------------------------------------------- |
|
1566 | #------------------------------------------------------------------------- | |
1567 | @staticmethod |
|
1567 | @staticmethod | |
1568 | def _find_parts(oname: str) -> Tuple[bool, ListType[str]]: |
|
1568 | def _find_parts(oname: str) -> Tuple[bool, ListType[str]]: | |
1569 | """ |
|
1569 | """ | |
1570 | Given an object name, return a list of parts of this object name. |
|
1570 | Given an object name, return a list of parts of this object name. | |
1571 |
|
1571 | |||
1572 | Basically split on docs when using attribute access, |
|
1572 | Basically split on docs when using attribute access, | |
1573 | and extract the value when using square bracket. |
|
1573 | and extract the value when using square bracket. | |
1574 |
|
1574 | |||
1575 |
|
1575 | |||
1576 | For example foo.bar[3].baz[x] -> foo, bar, 3, baz, x |
|
1576 | For example foo.bar[3].baz[x] -> foo, bar, 3, baz, x | |
1577 |
|
1577 | |||
1578 |
|
1578 | |||
1579 | Returns |
|
1579 | Returns | |
1580 | ------- |
|
1580 | ------- | |
1581 | parts_ok: bool |
|
1581 | parts_ok: bool | |
1582 | wether we were properly able to parse parts. |
|
1582 | wether we were properly able to parse parts. | |
1583 | parts: list of str |
|
1583 | parts: list of str | |
1584 | extracted parts |
|
1584 | extracted parts | |
1585 |
|
1585 | |||
1586 |
|
1586 | |||
1587 |
|
1587 | |||
1588 | """ |
|
1588 | """ | |
1589 | raw_parts = oname.split(".") |
|
1589 | raw_parts = oname.split(".") | |
1590 | parts = [] |
|
1590 | parts = [] | |
1591 | parts_ok = True |
|
1591 | parts_ok = True | |
1592 | for p in raw_parts: |
|
1592 | for p in raw_parts: | |
1593 | if p.endswith("]"): |
|
1593 | if p.endswith("]"): | |
1594 | var, *indices = p.split("[") |
|
1594 | var, *indices = p.split("[") | |
1595 | if not var.isidentifier(): |
|
1595 | if not var.isidentifier(): | |
1596 | parts_ok = False |
|
1596 | parts_ok = False | |
1597 | break |
|
1597 | break | |
1598 | parts.append(var) |
|
1598 | parts.append(var) | |
1599 | for ind in indices: |
|
1599 | for ind in indices: | |
1600 | if ind[-1] != "]" and not is_integer_string(ind[:-1]): |
|
1600 | if ind[-1] != "]" and not is_integer_string(ind[:-1]): | |
1601 | parts_ok = False |
|
1601 | parts_ok = False | |
1602 | break |
|
1602 | break | |
1603 | parts.append(ind[:-1]) |
|
1603 | parts.append(ind[:-1]) | |
1604 | continue |
|
1604 | continue | |
1605 |
|
1605 | |||
1606 | if not p.isidentifier(): |
|
1606 | if not p.isidentifier(): | |
1607 | parts_ok = False |
|
1607 | parts_ok = False | |
1608 | parts.append(p) |
|
1608 | parts.append(p) | |
1609 |
|
1609 | |||
1610 | return parts_ok, parts |
|
1610 | return parts_ok, parts | |
1611 |
|
1611 | |||
1612 | def _ofind( |
|
1612 | def _ofind( | |
1613 | self, oname: str, namespaces: Optional[Sequence[Tuple[str, AnyType]]] = None |
|
1613 | self, oname: str, namespaces: Optional[Sequence[Tuple[str, AnyType]]] = None | |
1614 | ) -> OInfo: |
|
1614 | ) -> OInfo: | |
1615 | """Find an object in the available namespaces. |
|
1615 | """Find an object in the available namespaces. | |
1616 |
|
1616 | |||
1617 |
|
1617 | |||
1618 | Returns |
|
1618 | Returns | |
1619 | ------- |
|
1619 | ------- | |
1620 | OInfo with fields: |
|
1620 | OInfo with fields: | |
1621 | - ismagic |
|
1621 | - ismagic | |
1622 | - isalias |
|
1622 | - isalias | |
1623 | - found |
|
1623 | - found | |
1624 | - obj |
|
1624 | - obj | |
1625 | - namespac |
|
1625 | - namespac | |
1626 | - parent |
|
1626 | - parent | |
1627 |
|
1627 | |||
1628 | Has special code to detect magic functions. |
|
1628 | Has special code to detect magic functions. | |
1629 | """ |
|
1629 | """ | |
1630 | oname = oname.strip() |
|
1630 | oname = oname.strip() | |
1631 | parts_ok, parts = self._find_parts(oname) |
|
1631 | parts_ok, parts = self._find_parts(oname) | |
1632 |
|
1632 | |||
1633 | if ( |
|
1633 | if ( | |
1634 | not oname.startswith(ESC_MAGIC) |
|
1634 | not oname.startswith(ESC_MAGIC) | |
1635 | and not oname.startswith(ESC_MAGIC2) |
|
1635 | and not oname.startswith(ESC_MAGIC2) | |
1636 | and not parts_ok |
|
1636 | and not parts_ok | |
1637 | ): |
|
1637 | ): | |
1638 | return OInfo( |
|
1638 | return OInfo( | |
1639 | ismagic=False, |
|
1639 | ismagic=False, | |
1640 | isalias=False, |
|
1640 | isalias=False, | |
1641 | found=False, |
|
1641 | found=False, | |
1642 | obj=None, |
|
1642 | obj=None, | |
1643 | namespace=None, |
|
1643 | namespace=None, | |
1644 | parent=None, |
|
1644 | parent=None, | |
1645 | ) |
|
1645 | ) | |
1646 |
|
1646 | |||
1647 | if namespaces is None: |
|
1647 | if namespaces is None: | |
1648 | # Namespaces to search in: |
|
1648 | # Namespaces to search in: | |
1649 | # Put them in a list. The order is important so that we |
|
1649 | # Put them in a list. The order is important so that we | |
1650 | # find things in the same order that Python finds them. |
|
1650 | # find things in the same order that Python finds them. | |
1651 | namespaces = [ ('Interactive', self.user_ns), |
|
1651 | namespaces = [ ('Interactive', self.user_ns), | |
1652 | ('Interactive (global)', self.user_global_ns), |
|
1652 | ('Interactive (global)', self.user_global_ns), | |
1653 | ('Python builtin', builtin_mod.__dict__), |
|
1653 | ('Python builtin', builtin_mod.__dict__), | |
1654 | ] |
|
1654 | ] | |
1655 |
|
1655 | |||
1656 | ismagic = False |
|
1656 | ismagic = False | |
1657 | isalias = False |
|
1657 | isalias = False | |
1658 | found = False |
|
1658 | found = False | |
1659 | ospace = None |
|
1659 | ospace = None | |
1660 | parent = None |
|
1660 | parent = None | |
1661 | obj = None |
|
1661 | obj = None | |
1662 |
|
1662 | |||
1663 |
|
1663 | |||
1664 | # Look for the given name by splitting it in parts. If the head is |
|
1664 | # Look for the given name by splitting it in parts. If the head is | |
1665 | # found, then we look for all the remaining parts as members, and only |
|
1665 | # found, then we look for all the remaining parts as members, and only | |
1666 | # declare success if we can find them all. |
|
1666 | # declare success if we can find them all. | |
1667 | oname_parts = parts |
|
1667 | oname_parts = parts | |
1668 | oname_head, oname_rest = oname_parts[0],oname_parts[1:] |
|
1668 | oname_head, oname_rest = oname_parts[0],oname_parts[1:] | |
1669 | for nsname,ns in namespaces: |
|
1669 | for nsname,ns in namespaces: | |
1670 | try: |
|
1670 | try: | |
1671 | obj = ns[oname_head] |
|
1671 | obj = ns[oname_head] | |
1672 | except KeyError: |
|
1672 | except KeyError: | |
1673 | continue |
|
1673 | continue | |
1674 | else: |
|
1674 | else: | |
1675 | for idx, part in enumerate(oname_rest): |
|
1675 | for idx, part in enumerate(oname_rest): | |
1676 | try: |
|
1676 | try: | |
1677 | parent = obj |
|
1677 | parent = obj | |
1678 | # The last part is looked up in a special way to avoid |
|
1678 | # The last part is looked up in a special way to avoid | |
1679 | # descriptor invocation as it may raise or have side |
|
1679 | # descriptor invocation as it may raise or have side | |
1680 | # effects. |
|
1680 | # effects. | |
1681 | if idx == len(oname_rest) - 1: |
|
1681 | if idx == len(oname_rest) - 1: | |
1682 | obj = self._getattr_property(obj, part) |
|
1682 | obj = self._getattr_property(obj, part) | |
1683 | else: |
|
1683 | else: | |
1684 | if is_integer_string(part): |
|
1684 | if is_integer_string(part): | |
1685 | obj = obj[int(part)] |
|
1685 | obj = obj[int(part)] | |
1686 | else: |
|
1686 | else: | |
1687 | obj = getattr(obj, part) |
|
1687 | obj = getattr(obj, part) | |
1688 | except: |
|
1688 | except: | |
1689 | # Blanket except b/c some badly implemented objects |
|
1689 | # Blanket except b/c some badly implemented objects | |
1690 | # allow __getattr__ to raise exceptions other than |
|
1690 | # allow __getattr__ to raise exceptions other than | |
1691 | # AttributeError, which then crashes IPython. |
|
1691 | # AttributeError, which then crashes IPython. | |
1692 | break |
|
1692 | break | |
1693 | else: |
|
1693 | else: | |
1694 | # If we finish the for loop (no break), we got all members |
|
1694 | # If we finish the for loop (no break), we got all members | |
1695 | found = True |
|
1695 | found = True | |
1696 | ospace = nsname |
|
1696 | ospace = nsname | |
1697 | break # namespace loop |
|
1697 | break # namespace loop | |
1698 |
|
1698 | |||
1699 | # Try to see if it's magic |
|
1699 | # Try to see if it's magic | |
1700 | if not found: |
|
1700 | if not found: | |
1701 | obj = None |
|
1701 | obj = None | |
1702 | if oname.startswith(ESC_MAGIC2): |
|
1702 | if oname.startswith(ESC_MAGIC2): | |
1703 | oname = oname.lstrip(ESC_MAGIC2) |
|
1703 | oname = oname.lstrip(ESC_MAGIC2) | |
1704 | obj = self.find_cell_magic(oname) |
|
1704 | obj = self.find_cell_magic(oname) | |
1705 | elif oname.startswith(ESC_MAGIC): |
|
1705 | elif oname.startswith(ESC_MAGIC): | |
1706 | oname = oname.lstrip(ESC_MAGIC) |
|
1706 | oname = oname.lstrip(ESC_MAGIC) | |
1707 | obj = self.find_line_magic(oname) |
|
1707 | obj = self.find_line_magic(oname) | |
1708 | else: |
|
1708 | else: | |
1709 | # search without prefix, so run? will find %run? |
|
1709 | # search without prefix, so run? will find %run? | |
1710 | obj = self.find_line_magic(oname) |
|
1710 | obj = self.find_line_magic(oname) | |
1711 | if obj is None: |
|
1711 | if obj is None: | |
1712 | obj = self.find_cell_magic(oname) |
|
1712 | obj = self.find_cell_magic(oname) | |
1713 | if obj is not None: |
|
1713 | if obj is not None: | |
1714 | found = True |
|
1714 | found = True | |
1715 | ospace = 'IPython internal' |
|
1715 | ospace = 'IPython internal' | |
1716 | ismagic = True |
|
1716 | ismagic = True | |
1717 | isalias = isinstance(obj, Alias) |
|
1717 | isalias = isinstance(obj, Alias) | |
1718 |
|
1718 | |||
1719 | # Last try: special-case some literals like '', [], {}, etc: |
|
1719 | # Last try: special-case some literals like '', [], {}, etc: | |
1720 | if not found and oname_head in ["''",'""','[]','{}','()']: |
|
1720 | if not found and oname_head in ["''",'""','[]','{}','()']: | |
1721 | obj = eval(oname_head) |
|
1721 | obj = eval(oname_head) | |
1722 | found = True |
|
1722 | found = True | |
1723 | ospace = 'Interactive' |
|
1723 | ospace = 'Interactive' | |
1724 |
|
1724 | |||
1725 | return OInfo( |
|
1725 | return OInfo( | |
1726 | obj=obj, |
|
1726 | obj=obj, | |
1727 | found=found, |
|
1727 | found=found, | |
1728 | parent=parent, |
|
1728 | parent=parent, | |
1729 | ismagic=ismagic, |
|
1729 | ismagic=ismagic, | |
1730 | isalias=isalias, |
|
1730 | isalias=isalias, | |
1731 | namespace=ospace, |
|
1731 | namespace=ospace, | |
1732 | ) |
|
1732 | ) | |
1733 |
|
1733 | |||
1734 | @staticmethod |
|
1734 | @staticmethod | |
1735 | def _getattr_property(obj, attrname): |
|
1735 | def _getattr_property(obj, attrname): | |
1736 | """Property-aware getattr to use in object finding. |
|
1736 | """Property-aware getattr to use in object finding. | |
1737 |
|
1737 | |||
1738 | If attrname represents a property, return it unevaluated (in case it has |
|
1738 | If attrname represents a property, return it unevaluated (in case it has | |
1739 | side effects or raises an error. |
|
1739 | side effects or raises an error. | |
1740 |
|
1740 | |||
1741 | """ |
|
1741 | """ | |
1742 | if not isinstance(obj, type): |
|
1742 | if not isinstance(obj, type): | |
1743 | try: |
|
1743 | try: | |
1744 | # `getattr(type(obj), attrname)` is not guaranteed to return |
|
1744 | # `getattr(type(obj), attrname)` is not guaranteed to return | |
1745 | # `obj`, but does so for property: |
|
1745 | # `obj`, but does so for property: | |
1746 | # |
|
1746 | # | |
1747 | # property.__get__(self, None, cls) -> self |
|
1747 | # property.__get__(self, None, cls) -> self | |
1748 | # |
|
1748 | # | |
1749 | # The universal alternative is to traverse the mro manually |
|
1749 | # The universal alternative is to traverse the mro manually | |
1750 | # searching for attrname in class dicts. |
|
1750 | # searching for attrname in class dicts. | |
1751 | if is_integer_string(attrname): |
|
1751 | if is_integer_string(attrname): | |
1752 | return obj[int(attrname)] |
|
1752 | return obj[int(attrname)] | |
1753 | else: |
|
1753 | else: | |
1754 | attr = getattr(type(obj), attrname) |
|
1754 | attr = getattr(type(obj), attrname) | |
1755 | except AttributeError: |
|
1755 | except AttributeError: | |
1756 | pass |
|
1756 | pass | |
1757 | else: |
|
1757 | else: | |
1758 | # This relies on the fact that data descriptors (with both |
|
1758 | # This relies on the fact that data descriptors (with both | |
1759 | # __get__ & __set__ magic methods) take precedence over |
|
1759 | # __get__ & __set__ magic methods) take precedence over | |
1760 | # instance-level attributes: |
|
1760 | # instance-level attributes: | |
1761 | # |
|
1761 | # | |
1762 | # class A(object): |
|
1762 | # class A(object): | |
1763 | # @property |
|
1763 | # @property | |
1764 | # def foobar(self): return 123 |
|
1764 | # def foobar(self): return 123 | |
1765 | # a = A() |
|
1765 | # a = A() | |
1766 | # a.__dict__['foobar'] = 345 |
|
1766 | # a.__dict__['foobar'] = 345 | |
1767 | # a.foobar # == 123 |
|
1767 | # a.foobar # == 123 | |
1768 | # |
|
1768 | # | |
1769 | # So, a property may be returned right away. |
|
1769 | # So, a property may be returned right away. | |
1770 | if isinstance(attr, property): |
|
1770 | if isinstance(attr, property): | |
1771 | return attr |
|
1771 | return attr | |
1772 |
|
1772 | |||
1773 | # Nothing helped, fall back. |
|
1773 | # Nothing helped, fall back. | |
1774 | return getattr(obj, attrname) |
|
1774 | return getattr(obj, attrname) | |
1775 |
|
1775 | |||
1776 | def _object_find(self, oname, namespaces=None) -> OInfo: |
|
1776 | def _object_find(self, oname, namespaces=None) -> OInfo: | |
1777 | """Find an object and return a struct with info about it.""" |
|
1777 | """Find an object and return a struct with info about it.""" | |
1778 | return self._ofind(oname, namespaces) |
|
1778 | return self._ofind(oname, namespaces) | |
1779 |
|
1779 | |||
1780 | def _inspect(self, meth, oname, namespaces=None, **kw): |
|
1780 | def _inspect(self, meth, oname, namespaces=None, **kw): | |
1781 | """Generic interface to the inspector system. |
|
1781 | """Generic interface to the inspector system. | |
1782 |
|
1782 | |||
1783 | This function is meant to be called by pdef, pdoc & friends. |
|
1783 | This function is meant to be called by pdef, pdoc & friends. | |
1784 | """ |
|
1784 | """ | |
1785 | info: OInfo = self._object_find(oname, namespaces) |
|
1785 | info: OInfo = self._object_find(oname, namespaces) | |
1786 | if self.sphinxify_docstring: |
|
1786 | if self.sphinxify_docstring: | |
1787 | if sphinxify is None: |
|
1787 | if sphinxify is None: | |
1788 | raise ImportError("Module ``docrepr`` required but missing") |
|
1788 | raise ImportError("Module ``docrepr`` required but missing") | |
1789 | docformat = sphinxify(self.object_inspect(oname)) |
|
1789 | docformat = sphinxify(self.object_inspect(oname)) | |
1790 | else: |
|
1790 | else: | |
1791 | docformat = None |
|
1791 | docformat = None | |
1792 | if info.found or hasattr(info.parent, oinspect.HOOK_NAME): |
|
1792 | if info.found or hasattr(info.parent, oinspect.HOOK_NAME): | |
1793 | pmethod = getattr(self.inspector, meth) |
|
1793 | pmethod = getattr(self.inspector, meth) | |
1794 | # TODO: only apply format_screen to the plain/text repr of the mime |
|
1794 | # TODO: only apply format_screen to the plain/text repr of the mime | |
1795 | # bundle. |
|
1795 | # bundle. | |
1796 | formatter = format_screen if info.ismagic else docformat |
|
1796 | formatter = format_screen if info.ismagic else docformat | |
1797 | if meth == 'pdoc': |
|
1797 | if meth == 'pdoc': | |
1798 | pmethod(info.obj, oname, formatter) |
|
1798 | pmethod(info.obj, oname, formatter) | |
1799 | elif meth == 'pinfo': |
|
1799 | elif meth == 'pinfo': | |
1800 | pmethod( |
|
1800 | pmethod( | |
1801 | info.obj, |
|
1801 | info.obj, | |
1802 | oname, |
|
1802 | oname, | |
1803 | formatter, |
|
1803 | formatter, | |
1804 | info, |
|
1804 | info, | |
1805 | enable_html_pager=self.enable_html_pager, |
|
1805 | enable_html_pager=self.enable_html_pager, | |
1806 | **kw, |
|
1806 | **kw, | |
1807 | ) |
|
1807 | ) | |
1808 | else: |
|
1808 | else: | |
1809 | pmethod(info.obj, oname) |
|
1809 | pmethod(info.obj, oname) | |
1810 | else: |
|
1810 | else: | |
1811 | print('Object `%s` not found.' % oname) |
|
1811 | print('Object `%s` not found.' % oname) | |
1812 | return 'not found' # so callers can take other action |
|
1812 | return 'not found' # so callers can take other action | |
1813 |
|
1813 | |||
1814 | def object_inspect(self, oname, detail_level=0): |
|
1814 | def object_inspect(self, oname, detail_level=0): | |
1815 | """Get object info about oname""" |
|
1815 | """Get object info about oname""" | |
1816 | with self.builtin_trap: |
|
1816 | with self.builtin_trap: | |
1817 | info = self._object_find(oname) |
|
1817 | info = self._object_find(oname) | |
1818 | if info.found: |
|
1818 | if info.found: | |
1819 | return self.inspector.info(info.obj, oname, info=info, |
|
1819 | return self.inspector.info(info.obj, oname, info=info, | |
1820 | detail_level=detail_level |
|
1820 | detail_level=detail_level | |
1821 | ) |
|
1821 | ) | |
1822 | else: |
|
1822 | else: | |
1823 | return oinspect.object_info(name=oname, found=False) |
|
1823 | return oinspect.object_info(name=oname, found=False) | |
1824 |
|
1824 | |||
1825 | def object_inspect_text(self, oname, detail_level=0): |
|
1825 | def object_inspect_text(self, oname, detail_level=0): | |
1826 | """Get object info as formatted text""" |
|
1826 | """Get object info as formatted text""" | |
1827 | return self.object_inspect_mime(oname, detail_level)['text/plain'] |
|
1827 | return self.object_inspect_mime(oname, detail_level)['text/plain'] | |
1828 |
|
1828 | |||
1829 | def object_inspect_mime(self, oname, detail_level=0, omit_sections=()): |
|
1829 | def object_inspect_mime(self, oname, detail_level=0, omit_sections=()): | |
1830 | """Get object info as a mimebundle of formatted representations. |
|
1830 | """Get object info as a mimebundle of formatted representations. | |
1831 |
|
1831 | |||
1832 | A mimebundle is a dictionary, keyed by mime-type. |
|
1832 | A mimebundle is a dictionary, keyed by mime-type. | |
1833 | It must always have the key `'text/plain'`. |
|
1833 | It must always have the key `'text/plain'`. | |
1834 | """ |
|
1834 | """ | |
1835 | with self.builtin_trap: |
|
1835 | with self.builtin_trap: | |
1836 | info = self._object_find(oname) |
|
1836 | info = self._object_find(oname) | |
1837 | if info.found: |
|
1837 | if info.found: | |
1838 | docformat = ( |
|
1838 | docformat = ( | |
1839 | sphinxify(self.object_inspect(oname)) |
|
1839 | sphinxify(self.object_inspect(oname)) | |
1840 | if self.sphinxify_docstring |
|
1840 | if self.sphinxify_docstring | |
1841 | else None |
|
1841 | else None | |
1842 | ) |
|
1842 | ) | |
1843 | return self.inspector._get_info( |
|
1843 | return self.inspector._get_info( | |
1844 | info.obj, |
|
1844 | info.obj, | |
1845 | oname, |
|
1845 | oname, | |
1846 | info=info, |
|
1846 | info=info, | |
1847 | detail_level=detail_level, |
|
1847 | detail_level=detail_level, | |
1848 | formatter=docformat, |
|
1848 | formatter=docformat, | |
1849 | omit_sections=omit_sections, |
|
1849 | omit_sections=omit_sections, | |
1850 | ) |
|
1850 | ) | |
1851 | else: |
|
1851 | else: | |
1852 | raise KeyError(oname) |
|
1852 | raise KeyError(oname) | |
1853 |
|
1853 | |||
1854 | #------------------------------------------------------------------------- |
|
1854 | #------------------------------------------------------------------------- | |
1855 | # Things related to history management |
|
1855 | # Things related to history management | |
1856 | #------------------------------------------------------------------------- |
|
1856 | #------------------------------------------------------------------------- | |
1857 |
|
1857 | |||
1858 | def init_history(self): |
|
1858 | def init_history(self): | |
1859 | """Sets up the command history, and starts regular autosaves.""" |
|
1859 | """Sets up the command history, and starts regular autosaves.""" | |
1860 | self.history_manager = HistoryManager(shell=self, parent=self) |
|
1860 | self.history_manager = HistoryManager(shell=self, parent=self) | |
1861 | self.configurables.append(self.history_manager) |
|
1861 | self.configurables.append(self.history_manager) | |
1862 |
|
1862 | |||
1863 | #------------------------------------------------------------------------- |
|
1863 | #------------------------------------------------------------------------- | |
1864 | # Things related to exception handling and tracebacks (not debugging) |
|
1864 | # Things related to exception handling and tracebacks (not debugging) | |
1865 | #------------------------------------------------------------------------- |
|
1865 | #------------------------------------------------------------------------- | |
1866 |
|
1866 | |||
1867 | debugger_cls = InterruptiblePdb |
|
1867 | debugger_cls = InterruptiblePdb | |
1868 |
|
1868 | |||
1869 | def init_traceback_handlers(self, custom_exceptions): |
|
1869 | def init_traceback_handlers(self, custom_exceptions): | |
1870 | # Syntax error handler. |
|
1870 | # Syntax error handler. | |
1871 | self.SyntaxTB = ultratb.SyntaxTB(color_scheme='NoColor', parent=self) |
|
1871 | self.SyntaxTB = ultratb.SyntaxTB(color_scheme='NoColor', parent=self) | |
1872 |
|
1872 | |||
1873 | # The interactive one is initialized with an offset, meaning we always |
|
1873 | # The interactive one is initialized with an offset, meaning we always | |
1874 | # want to remove the topmost item in the traceback, which is our own |
|
1874 | # want to remove the topmost item in the traceback, which is our own | |
1875 | # internal code. Valid modes: ['Plain','Context','Verbose','Minimal'] |
|
1875 | # internal code. Valid modes: ['Plain','Context','Verbose','Minimal'] | |
1876 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', |
|
1876 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', | |
1877 | color_scheme='NoColor', |
|
1877 | color_scheme='NoColor', | |
1878 | tb_offset = 1, |
|
1878 | tb_offset = 1, | |
1879 | debugger_cls=self.debugger_cls, parent=self) |
|
1879 | debugger_cls=self.debugger_cls, parent=self) | |
1880 |
|
1880 | |||
1881 | # The instance will store a pointer to the system-wide exception hook, |
|
1881 | # The instance will store a pointer to the system-wide exception hook, | |
1882 | # so that runtime code (such as magics) can access it. This is because |
|
1882 | # so that runtime code (such as magics) can access it. This is because | |
1883 | # during the read-eval loop, it may get temporarily overwritten. |
|
1883 | # during the read-eval loop, it may get temporarily overwritten. | |
1884 | self.sys_excepthook = sys.excepthook |
|
1884 | self.sys_excepthook = sys.excepthook | |
1885 |
|
1885 | |||
1886 | # and add any custom exception handlers the user may have specified |
|
1886 | # and add any custom exception handlers the user may have specified | |
1887 | self.set_custom_exc(*custom_exceptions) |
|
1887 | self.set_custom_exc(*custom_exceptions) | |
1888 |
|
1888 | |||
1889 | # Set the exception mode |
|
1889 | # Set the exception mode | |
1890 | self.InteractiveTB.set_mode(mode=self.xmode) |
|
1890 | self.InteractiveTB.set_mode(mode=self.xmode) | |
1891 |
|
1891 | |||
1892 | def set_custom_exc(self, exc_tuple, handler): |
|
1892 | def set_custom_exc(self, exc_tuple, handler): | |
1893 | """set_custom_exc(exc_tuple, handler) |
|
1893 | """set_custom_exc(exc_tuple, handler) | |
1894 |
|
1894 | |||
1895 | Set a custom exception handler, which will be called if any of the |
|
1895 | Set a custom exception handler, which will be called if any of the | |
1896 | exceptions in exc_tuple occur in the mainloop (specifically, in the |
|
1896 | exceptions in exc_tuple occur in the mainloop (specifically, in the | |
1897 | run_code() method). |
|
1897 | run_code() method). | |
1898 |
|
1898 | |||
1899 | Parameters |
|
1899 | Parameters | |
1900 | ---------- |
|
1900 | ---------- | |
1901 | exc_tuple : tuple of exception classes |
|
1901 | exc_tuple : tuple of exception classes | |
1902 | A *tuple* of exception classes, for which to call the defined |
|
1902 | A *tuple* of exception classes, for which to call the defined | |
1903 | handler. It is very important that you use a tuple, and NOT A |
|
1903 | handler. It is very important that you use a tuple, and NOT A | |
1904 | LIST here, because of the way Python's except statement works. If |
|
1904 | LIST here, because of the way Python's except statement works. If | |
1905 | you only want to trap a single exception, use a singleton tuple:: |
|
1905 | you only want to trap a single exception, use a singleton tuple:: | |
1906 |
|
1906 | |||
1907 | exc_tuple == (MyCustomException,) |
|
1907 | exc_tuple == (MyCustomException,) | |
1908 |
|
1908 | |||
1909 | handler : callable |
|
1909 | handler : callable | |
1910 | handler must have the following signature:: |
|
1910 | handler must have the following signature:: | |
1911 |
|
1911 | |||
1912 | def my_handler(self, etype, value, tb, tb_offset=None): |
|
1912 | def my_handler(self, etype, value, tb, tb_offset=None): | |
1913 | ... |
|
1913 | ... | |
1914 | return structured_traceback |
|
1914 | return structured_traceback | |
1915 |
|
1915 | |||
1916 | Your handler must return a structured traceback (a list of strings), |
|
1916 | Your handler must return a structured traceback (a list of strings), | |
1917 | or None. |
|
1917 | or None. | |
1918 |
|
1918 | |||
1919 | This will be made into an instance method (via types.MethodType) |
|
1919 | This will be made into an instance method (via types.MethodType) | |
1920 | of IPython itself, and it will be called if any of the exceptions |
|
1920 | of IPython itself, and it will be called if any of the exceptions | |
1921 | listed in the exc_tuple are caught. If the handler is None, an |
|
1921 | listed in the exc_tuple are caught. If the handler is None, an | |
1922 | internal basic one is used, which just prints basic info. |
|
1922 | internal basic one is used, which just prints basic info. | |
1923 |
|
1923 | |||
1924 | To protect IPython from crashes, if your handler ever raises an |
|
1924 | To protect IPython from crashes, if your handler ever raises an | |
1925 | exception or returns an invalid result, it will be immediately |
|
1925 | exception or returns an invalid result, it will be immediately | |
1926 | disabled. |
|
1926 | disabled. | |
1927 |
|
1927 | |||
1928 | Notes |
|
1928 | Notes | |
1929 | ----- |
|
1929 | ----- | |
1930 | WARNING: by putting in your own exception handler into IPython's main |
|
1930 | WARNING: by putting in your own exception handler into IPython's main | |
1931 | execution loop, you run a very good chance of nasty crashes. This |
|
1931 | execution loop, you run a very good chance of nasty crashes. This | |
1932 | facility should only be used if you really know what you are doing. |
|
1932 | facility should only be used if you really know what you are doing. | |
1933 | """ |
|
1933 | """ | |
1934 |
|
1934 | |||
1935 | if not isinstance(exc_tuple, tuple): |
|
1935 | if not isinstance(exc_tuple, tuple): | |
1936 | raise TypeError("The custom exceptions must be given as a tuple.") |
|
1936 | raise TypeError("The custom exceptions must be given as a tuple.") | |
1937 |
|
1937 | |||
1938 | def dummy_handler(self, etype, value, tb, tb_offset=None): |
|
1938 | def dummy_handler(self, etype, value, tb, tb_offset=None): | |
1939 | print('*** Simple custom exception handler ***') |
|
1939 | print('*** Simple custom exception handler ***') | |
1940 | print('Exception type :', etype) |
|
1940 | print('Exception type :', etype) | |
1941 | print('Exception value:', value) |
|
1941 | print('Exception value:', value) | |
1942 | print('Traceback :', tb) |
|
1942 | print('Traceback :', tb) | |
1943 |
|
1943 | |||
1944 | def validate_stb(stb): |
|
1944 | def validate_stb(stb): | |
1945 | """validate structured traceback return type |
|
1945 | """validate structured traceback return type | |
1946 |
|
1946 | |||
1947 | return type of CustomTB *should* be a list of strings, but allow |
|
1947 | return type of CustomTB *should* be a list of strings, but allow | |
1948 | single strings or None, which are harmless. |
|
1948 | single strings or None, which are harmless. | |
1949 |
|
1949 | |||
1950 | This function will *always* return a list of strings, |
|
1950 | This function will *always* return a list of strings, | |
1951 | and will raise a TypeError if stb is inappropriate. |
|
1951 | and will raise a TypeError if stb is inappropriate. | |
1952 | """ |
|
1952 | """ | |
1953 | msg = "CustomTB must return list of strings, not %r" % stb |
|
1953 | msg = "CustomTB must return list of strings, not %r" % stb | |
1954 | if stb is None: |
|
1954 | if stb is None: | |
1955 | return [] |
|
1955 | return [] | |
1956 | elif isinstance(stb, str): |
|
1956 | elif isinstance(stb, str): | |
1957 | return [stb] |
|
1957 | return [stb] | |
1958 | elif not isinstance(stb, list): |
|
1958 | elif not isinstance(stb, list): | |
1959 | raise TypeError(msg) |
|
1959 | raise TypeError(msg) | |
1960 | # it's a list |
|
1960 | # it's a list | |
1961 | for line in stb: |
|
1961 | for line in stb: | |
1962 | # check every element |
|
1962 | # check every element | |
1963 | if not isinstance(line, str): |
|
1963 | if not isinstance(line, str): | |
1964 | raise TypeError(msg) |
|
1964 | raise TypeError(msg) | |
1965 | return stb |
|
1965 | return stb | |
1966 |
|
1966 | |||
1967 | if handler is None: |
|
1967 | if handler is None: | |
1968 | wrapped = dummy_handler |
|
1968 | wrapped = dummy_handler | |
1969 | else: |
|
1969 | else: | |
1970 | def wrapped(self,etype,value,tb,tb_offset=None): |
|
1970 | def wrapped(self,etype,value,tb,tb_offset=None): | |
1971 | """wrap CustomTB handler, to protect IPython from user code |
|
1971 | """wrap CustomTB handler, to protect IPython from user code | |
1972 |
|
1972 | |||
1973 | This makes it harder (but not impossible) for custom exception |
|
1973 | This makes it harder (but not impossible) for custom exception | |
1974 | handlers to crash IPython. |
|
1974 | handlers to crash IPython. | |
1975 | """ |
|
1975 | """ | |
1976 | try: |
|
1976 | try: | |
1977 | stb = handler(self,etype,value,tb,tb_offset=tb_offset) |
|
1977 | stb = handler(self,etype,value,tb,tb_offset=tb_offset) | |
1978 | return validate_stb(stb) |
|
1978 | return validate_stb(stb) | |
1979 | except: |
|
1979 | except: | |
1980 | # clear custom handler immediately |
|
1980 | # clear custom handler immediately | |
1981 | self.set_custom_exc((), None) |
|
1981 | self.set_custom_exc((), None) | |
1982 | print("Custom TB Handler failed, unregistering", file=sys.stderr) |
|
1982 | print("Custom TB Handler failed, unregistering", file=sys.stderr) | |
1983 | # show the exception in handler first |
|
1983 | # show the exception in handler first | |
1984 | stb = self.InteractiveTB.structured_traceback(*sys.exc_info()) |
|
1984 | stb = self.InteractiveTB.structured_traceback(*sys.exc_info()) | |
1985 | print(self.InteractiveTB.stb2text(stb)) |
|
1985 | print(self.InteractiveTB.stb2text(stb)) | |
1986 | print("The original exception:") |
|
1986 | print("The original exception:") | |
1987 | stb = self.InteractiveTB.structured_traceback( |
|
1987 | stb = self.InteractiveTB.structured_traceback( | |
1988 | (etype,value,tb), tb_offset=tb_offset |
|
1988 | (etype,value,tb), tb_offset=tb_offset | |
1989 | ) |
|
1989 | ) | |
1990 | return stb |
|
1990 | return stb | |
1991 |
|
1991 | |||
1992 | self.CustomTB = types.MethodType(wrapped,self) |
|
1992 | self.CustomTB = types.MethodType(wrapped,self) | |
1993 | self.custom_exceptions = exc_tuple |
|
1993 | self.custom_exceptions = exc_tuple | |
1994 |
|
1994 | |||
1995 | def excepthook(self, etype, value, tb): |
|
1995 | def excepthook(self, etype, value, tb): | |
1996 | """One more defense for GUI apps that call sys.excepthook. |
|
1996 | """One more defense for GUI apps that call sys.excepthook. | |
1997 |
|
1997 | |||
1998 | GUI frameworks like wxPython trap exceptions and call |
|
1998 | GUI frameworks like wxPython trap exceptions and call | |
1999 | sys.excepthook themselves. I guess this is a feature that |
|
1999 | sys.excepthook themselves. I guess this is a feature that | |
2000 | enables them to keep running after exceptions that would |
|
2000 | enables them to keep running after exceptions that would | |
2001 | otherwise kill their mainloop. This is a bother for IPython |
|
2001 | otherwise kill their mainloop. This is a bother for IPython | |
2002 | which expects to catch all of the program exceptions with a try: |
|
2002 | which expects to catch all of the program exceptions with a try: | |
2003 | except: statement. |
|
2003 | except: statement. | |
2004 |
|
2004 | |||
2005 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if |
|
2005 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if | |
2006 | any app directly invokes sys.excepthook, it will look to the user like |
|
2006 | any app directly invokes sys.excepthook, it will look to the user like | |
2007 | IPython crashed. In order to work around this, we can disable the |
|
2007 | IPython crashed. In order to work around this, we can disable the | |
2008 | CrashHandler and replace it with this excepthook instead, which prints a |
|
2008 | CrashHandler and replace it with this excepthook instead, which prints a | |
2009 | regular traceback using our InteractiveTB. In this fashion, apps which |
|
2009 | regular traceback using our InteractiveTB. In this fashion, apps which | |
2010 | call sys.excepthook will generate a regular-looking exception from |
|
2010 | call sys.excepthook will generate a regular-looking exception from | |
2011 | IPython, and the CrashHandler will only be triggered by real IPython |
|
2011 | IPython, and the CrashHandler will only be triggered by real IPython | |
2012 | crashes. |
|
2012 | crashes. | |
2013 |
|
2013 | |||
2014 | This hook should be used sparingly, only in places which are not likely |
|
2014 | This hook should be used sparingly, only in places which are not likely | |
2015 | to be true IPython errors. |
|
2015 | to be true IPython errors. | |
2016 | """ |
|
2016 | """ | |
2017 | self.showtraceback((etype, value, tb), tb_offset=0) |
|
2017 | self.showtraceback((etype, value, tb), tb_offset=0) | |
2018 |
|
2018 | |||
2019 | def _get_exc_info(self, exc_tuple=None): |
|
2019 | def _get_exc_info(self, exc_tuple=None): | |
2020 | """get exc_info from a given tuple, sys.exc_info() or sys.last_type etc. |
|
2020 | """get exc_info from a given tuple, sys.exc_info() or sys.last_type etc. | |
2021 |
|
2021 | |||
2022 | Ensures sys.last_type,value,traceback hold the exc_info we found, |
|
2022 | Ensures sys.last_type,value,traceback hold the exc_info we found, | |
2023 | from whichever source. |
|
2023 | from whichever source. | |
2024 |
|
2024 | |||
2025 | raises ValueError if none of these contain any information |
|
2025 | raises ValueError if none of these contain any information | |
2026 | """ |
|
2026 | """ | |
2027 | if exc_tuple is None: |
|
2027 | if exc_tuple is None: | |
2028 | etype, value, tb = sys.exc_info() |
|
2028 | etype, value, tb = sys.exc_info() | |
2029 | else: |
|
2029 | else: | |
2030 | etype, value, tb = exc_tuple |
|
2030 | etype, value, tb = exc_tuple | |
2031 |
|
2031 | |||
2032 | if etype is None: |
|
2032 | if etype is None: | |
2033 | if hasattr(sys, 'last_type'): |
|
2033 | if hasattr(sys, 'last_type'): | |
2034 | etype, value, tb = sys.last_type, sys.last_value, \ |
|
2034 | etype, value, tb = sys.last_type, sys.last_value, \ | |
2035 | sys.last_traceback |
|
2035 | sys.last_traceback | |
2036 |
|
2036 | |||
2037 | if etype is None: |
|
2037 | if etype is None: | |
2038 | raise ValueError("No exception to find") |
|
2038 | raise ValueError("No exception to find") | |
2039 |
|
2039 | |||
2040 | # Now store the exception info in sys.last_type etc. |
|
2040 | # Now store the exception info in sys.last_type etc. | |
2041 | # WARNING: these variables are somewhat deprecated and not |
|
2041 | # WARNING: these variables are somewhat deprecated and not | |
2042 | # necessarily safe to use in a threaded environment, but tools |
|
2042 | # necessarily safe to use in a threaded environment, but tools | |
2043 | # like pdb depend on their existence, so let's set them. If we |
|
2043 | # like pdb depend on their existence, so let's set them. If we | |
2044 | # find problems in the field, we'll need to revisit their use. |
|
2044 | # find problems in the field, we'll need to revisit their use. | |
2045 | sys.last_type = etype |
|
2045 | sys.last_type = etype | |
2046 | sys.last_value = value |
|
2046 | sys.last_value = value | |
2047 | sys.last_traceback = tb |
|
2047 | sys.last_traceback = tb | |
2048 |
|
2048 | |||
2049 | return etype, value, tb |
|
2049 | return etype, value, tb | |
2050 |
|
2050 | |||
2051 | def show_usage_error(self, exc): |
|
2051 | def show_usage_error(self, exc): | |
2052 | """Show a short message for UsageErrors |
|
2052 | """Show a short message for UsageErrors | |
2053 |
|
2053 | |||
2054 | These are special exceptions that shouldn't show a traceback. |
|
2054 | These are special exceptions that shouldn't show a traceback. | |
2055 | """ |
|
2055 | """ | |
2056 | print("UsageError: %s" % exc, file=sys.stderr) |
|
2056 | print("UsageError: %s" % exc, file=sys.stderr) | |
2057 |
|
2057 | |||
2058 | def get_exception_only(self, exc_tuple=None): |
|
2058 | def get_exception_only(self, exc_tuple=None): | |
2059 | """ |
|
2059 | """ | |
2060 | Return as a string (ending with a newline) the exception that |
|
2060 | Return as a string (ending with a newline) the exception that | |
2061 | just occurred, without any traceback. |
|
2061 | just occurred, without any traceback. | |
2062 | """ |
|
2062 | """ | |
2063 | etype, value, tb = self._get_exc_info(exc_tuple) |
|
2063 | etype, value, tb = self._get_exc_info(exc_tuple) | |
2064 | msg = traceback.format_exception_only(etype, value) |
|
2064 | msg = traceback.format_exception_only(etype, value) | |
2065 | return ''.join(msg) |
|
2065 | return ''.join(msg) | |
2066 |
|
2066 | |||
2067 | def showtraceback(self, exc_tuple=None, filename=None, tb_offset=None, |
|
2067 | def showtraceback(self, exc_tuple=None, filename=None, tb_offset=None, | |
2068 | exception_only=False, running_compiled_code=False): |
|
2068 | exception_only=False, running_compiled_code=False): | |
2069 | """Display the exception that just occurred. |
|
2069 | """Display the exception that just occurred. | |
2070 |
|
2070 | |||
2071 | If nothing is known about the exception, this is the method which |
|
2071 | If nothing is known about the exception, this is the method which | |
2072 | should be used throughout the code for presenting user tracebacks, |
|
2072 | should be used throughout the code for presenting user tracebacks, | |
2073 | rather than directly invoking the InteractiveTB object. |
|
2073 | rather than directly invoking the InteractiveTB object. | |
2074 |
|
2074 | |||
2075 | A specific showsyntaxerror() also exists, but this method can take |
|
2075 | A specific showsyntaxerror() also exists, but this method can take | |
2076 | care of calling it if needed, so unless you are explicitly catching a |
|
2076 | care of calling it if needed, so unless you are explicitly catching a | |
2077 | SyntaxError exception, don't try to analyze the stack manually and |
|
2077 | SyntaxError exception, don't try to analyze the stack manually and | |
2078 | simply call this method.""" |
|
2078 | simply call this method.""" | |
2079 |
|
2079 | |||
2080 | try: |
|
2080 | try: | |
2081 | try: |
|
2081 | try: | |
2082 | etype, value, tb = self._get_exc_info(exc_tuple) |
|
2082 | etype, value, tb = self._get_exc_info(exc_tuple) | |
2083 | except ValueError: |
|
2083 | except ValueError: | |
2084 | print('No traceback available to show.', file=sys.stderr) |
|
2084 | print('No traceback available to show.', file=sys.stderr) | |
2085 | return |
|
2085 | return | |
2086 |
|
2086 | |||
2087 | if issubclass(etype, SyntaxError): |
|
2087 | if issubclass(etype, SyntaxError): | |
2088 | # Though this won't be called by syntax errors in the input |
|
2088 | # Though this won't be called by syntax errors in the input | |
2089 | # line, there may be SyntaxError cases with imported code. |
|
2089 | # line, there may be SyntaxError cases with imported code. | |
2090 | self.showsyntaxerror(filename, running_compiled_code) |
|
2090 | self.showsyntaxerror(filename, running_compiled_code) | |
2091 | elif etype is UsageError: |
|
2091 | elif etype is UsageError: | |
2092 | self.show_usage_error(value) |
|
2092 | self.show_usage_error(value) | |
2093 | else: |
|
2093 | else: | |
2094 | if exception_only: |
|
2094 | if exception_only: | |
2095 | stb = ['An exception has occurred, use %tb to see ' |
|
2095 | stb = ['An exception has occurred, use %tb to see ' | |
2096 | 'the full traceback.\n'] |
|
2096 | 'the full traceback.\n'] | |
2097 | stb.extend(self.InteractiveTB.get_exception_only(etype, |
|
2097 | stb.extend(self.InteractiveTB.get_exception_only(etype, | |
2098 | value)) |
|
2098 | value)) | |
2099 | else: |
|
2099 | else: | |
2100 |
|
2100 | |||
2101 | def contains_exceptiongroup(val): |
|
2101 | def contains_exceptiongroup(val): | |
2102 | if val is None: |
|
2102 | if val is None: | |
2103 | return False |
|
2103 | return False | |
2104 | return isinstance( |
|
2104 | return isinstance( | |
2105 | val, BaseExceptionGroup |
|
2105 | val, BaseExceptionGroup | |
2106 | ) or contains_exceptiongroup(val.__context__) |
|
2106 | ) or contains_exceptiongroup(val.__context__) | |
2107 |
|
2107 | |||
2108 | if contains_exceptiongroup(value): |
|
2108 | if contains_exceptiongroup(value): | |
2109 | # fall back to native exception formatting until ultratb |
|
2109 | # fall back to native exception formatting until ultratb | |
2110 | # supports exception groups |
|
2110 | # supports exception groups | |
2111 | traceback.print_exc() |
|
2111 | traceback.print_exc() | |
2112 | else: |
|
2112 | else: | |
2113 | try: |
|
2113 | try: | |
2114 | # Exception classes can customise their traceback - we |
|
2114 | # Exception classes can customise their traceback - we | |
2115 | # use this in IPython.parallel for exceptions occurring |
|
2115 | # use this in IPython.parallel for exceptions occurring | |
2116 | # in the engines. This should return a list of strings. |
|
2116 | # in the engines. This should return a list of strings. | |
2117 | if hasattr(value, "_render_traceback_"): |
|
2117 | if hasattr(value, "_render_traceback_"): | |
2118 | stb = value._render_traceback_() |
|
2118 | stb = value._render_traceback_() | |
2119 | else: |
|
2119 | else: | |
2120 | stb = self.InteractiveTB.structured_traceback( |
|
2120 | stb = self.InteractiveTB.structured_traceback( | |
2121 | etype, value, tb, tb_offset=tb_offset |
|
2121 | etype, value, tb, tb_offset=tb_offset | |
2122 | ) |
|
2122 | ) | |
2123 |
|
2123 | |||
2124 | except Exception: |
|
2124 | except Exception: | |
2125 | print( |
|
2125 | print( | |
2126 | "Unexpected exception formatting exception. Falling back to standard exception" |
|
2126 | "Unexpected exception formatting exception. Falling back to standard exception" | |
2127 | ) |
|
2127 | ) | |
2128 | traceback.print_exc() |
|
2128 | traceback.print_exc() | |
2129 | return None |
|
2129 | return None | |
2130 |
|
2130 | |||
2131 | self._showtraceback(etype, value, stb) |
|
2131 | self._showtraceback(etype, value, stb) | |
2132 | if self.call_pdb: |
|
2132 | if self.call_pdb: | |
2133 | # drop into debugger |
|
2133 | # drop into debugger | |
2134 | self.debugger(force=True) |
|
2134 | self.debugger(force=True) | |
2135 | return |
|
2135 | return | |
2136 |
|
2136 | |||
2137 | # Actually show the traceback |
|
2137 | # Actually show the traceback | |
2138 | self._showtraceback(etype, value, stb) |
|
2138 | self._showtraceback(etype, value, stb) | |
2139 |
|
2139 | |||
2140 | except KeyboardInterrupt: |
|
2140 | except KeyboardInterrupt: | |
2141 | print('\n' + self.get_exception_only(), file=sys.stderr) |
|
2141 | print('\n' + self.get_exception_only(), file=sys.stderr) | |
2142 |
|
2142 | |||
2143 | def _showtraceback(self, etype, evalue, stb: str): |
|
2143 | def _showtraceback(self, etype, evalue, stb: str): | |
2144 | """Actually show a traceback. |
|
2144 | """Actually show a traceback. | |
2145 |
|
2145 | |||
2146 | Subclasses may override this method to put the traceback on a different |
|
2146 | Subclasses may override this method to put the traceback on a different | |
2147 | place, like a side channel. |
|
2147 | place, like a side channel. | |
2148 | """ |
|
2148 | """ | |
2149 | val = self.InteractiveTB.stb2text(stb) |
|
2149 | val = self.InteractiveTB.stb2text(stb) | |
2150 | try: |
|
2150 | try: | |
2151 | print(val) |
|
2151 | print(val) | |
2152 | except UnicodeEncodeError: |
|
2152 | except UnicodeEncodeError: | |
2153 | print(val.encode("utf-8", "backslashreplace").decode()) |
|
2153 | print(val.encode("utf-8", "backslashreplace").decode()) | |
2154 |
|
2154 | |||
2155 | def showsyntaxerror(self, filename=None, running_compiled_code=False): |
|
2155 | def showsyntaxerror(self, filename=None, running_compiled_code=False): | |
2156 | """Display the syntax error that just occurred. |
|
2156 | """Display the syntax error that just occurred. | |
2157 |
|
2157 | |||
2158 | This doesn't display a stack trace because there isn't one. |
|
2158 | This doesn't display a stack trace because there isn't one. | |
2159 |
|
2159 | |||
2160 | If a filename is given, it is stuffed in the exception instead |
|
2160 | If a filename is given, it is stuffed in the exception instead | |
2161 | of what was there before (because Python's parser always uses |
|
2161 | of what was there before (because Python's parser always uses | |
2162 | "<string>" when reading from a string). |
|
2162 | "<string>" when reading from a string). | |
2163 |
|
2163 | |||
2164 | If the syntax error occurred when running a compiled code (i.e. running_compile_code=True), |
|
2164 | If the syntax error occurred when running a compiled code (i.e. running_compile_code=True), | |
2165 | longer stack trace will be displayed. |
|
2165 | longer stack trace will be displayed. | |
2166 | """ |
|
2166 | """ | |
2167 | etype, value, last_traceback = self._get_exc_info() |
|
2167 | etype, value, last_traceback = self._get_exc_info() | |
2168 |
|
2168 | |||
2169 | if filename and issubclass(etype, SyntaxError): |
|
2169 | if filename and issubclass(etype, SyntaxError): | |
2170 | try: |
|
2170 | try: | |
2171 | value.filename = filename |
|
2171 | value.filename = filename | |
2172 | except: |
|
2172 | except: | |
2173 | # Not the format we expect; leave it alone |
|
2173 | # Not the format we expect; leave it alone | |
2174 | pass |
|
2174 | pass | |
2175 |
|
2175 | |||
2176 | # If the error occurred when executing compiled code, we should provide full stacktrace. |
|
2176 | # If the error occurred when executing compiled code, we should provide full stacktrace. | |
2177 | elist = traceback.extract_tb(last_traceback) if running_compiled_code else [] |
|
2177 | elist = traceback.extract_tb(last_traceback) if running_compiled_code else [] | |
2178 | stb = self.SyntaxTB.structured_traceback(etype, value, elist) |
|
2178 | stb = self.SyntaxTB.structured_traceback(etype, value, elist) | |
2179 | self._showtraceback(etype, value, stb) |
|
2179 | self._showtraceback(etype, value, stb) | |
2180 |
|
2180 | |||
2181 | # This is overridden in TerminalInteractiveShell to show a message about |
|
2181 | # This is overridden in TerminalInteractiveShell to show a message about | |
2182 | # the %paste magic. |
|
2182 | # the %paste magic. | |
2183 | def showindentationerror(self): |
|
2183 | def showindentationerror(self): | |
2184 | """Called by _run_cell when there's an IndentationError in code entered |
|
2184 | """Called by _run_cell when there's an IndentationError in code entered | |
2185 | at the prompt. |
|
2185 | at the prompt. | |
2186 |
|
2186 | |||
2187 | This is overridden in TerminalInteractiveShell to show a message about |
|
2187 | This is overridden in TerminalInteractiveShell to show a message about | |
2188 | the %paste magic.""" |
|
2188 | the %paste magic.""" | |
2189 | self.showsyntaxerror() |
|
2189 | self.showsyntaxerror() | |
2190 |
|
2190 | |||
2191 | @skip_doctest |
|
2191 | @skip_doctest | |
2192 | def set_next_input(self, s, replace=False): |
|
2192 | def set_next_input(self, s, replace=False): | |
2193 | """ Sets the 'default' input string for the next command line. |
|
2193 | """ Sets the 'default' input string for the next command line. | |
2194 |
|
2194 | |||
2195 | Example:: |
|
2195 | Example:: | |
2196 |
|
2196 | |||
2197 | In [1]: _ip.set_next_input("Hello Word") |
|
2197 | In [1]: _ip.set_next_input("Hello Word") | |
2198 | In [2]: Hello Word_ # cursor is here |
|
2198 | In [2]: Hello Word_ # cursor is here | |
2199 | """ |
|
2199 | """ | |
2200 | self.rl_next_input = s |
|
2200 | self.rl_next_input = s | |
2201 |
|
2201 | |||
2202 | def _indent_current_str(self): |
|
2202 | def _indent_current_str(self): | |
2203 | """return the current level of indentation as a string""" |
|
2203 | """return the current level of indentation as a string""" | |
2204 | return self.input_splitter.get_indent_spaces() * ' ' |
|
2204 | return self.input_splitter.get_indent_spaces() * ' ' | |
2205 |
|
2205 | |||
2206 | #------------------------------------------------------------------------- |
|
2206 | #------------------------------------------------------------------------- | |
2207 | # Things related to text completion |
|
2207 | # Things related to text completion | |
2208 | #------------------------------------------------------------------------- |
|
2208 | #------------------------------------------------------------------------- | |
2209 |
|
2209 | |||
2210 | def init_completer(self): |
|
2210 | def init_completer(self): | |
2211 | """Initialize the completion machinery. |
|
2211 | """Initialize the completion machinery. | |
2212 |
|
2212 | |||
2213 | This creates completion machinery that can be used by client code, |
|
2213 | This creates completion machinery that can be used by client code, | |
2214 | either interactively in-process (typically triggered by the readline |
|
2214 | either interactively in-process (typically triggered by the readline | |
2215 | library), programmatically (such as in test suites) or out-of-process |
|
2215 | library), programmatically (such as in test suites) or out-of-process | |
2216 | (typically over the network by remote frontends). |
|
2216 | (typically over the network by remote frontends). | |
2217 | """ |
|
2217 | """ | |
2218 | from IPython.core.completer import IPCompleter |
|
2218 | from IPython.core.completer import IPCompleter | |
2219 | from IPython.core.completerlib import ( |
|
2219 | from IPython.core.completerlib import ( | |
2220 | cd_completer, |
|
2220 | cd_completer, | |
2221 | magic_run_completer, |
|
2221 | magic_run_completer, | |
2222 | module_completer, |
|
2222 | module_completer, | |
2223 | reset_completer, |
|
2223 | reset_completer, | |
2224 | ) |
|
2224 | ) | |
2225 |
|
2225 | |||
2226 | self.Completer = IPCompleter(shell=self, |
|
2226 | self.Completer = IPCompleter(shell=self, | |
2227 | namespace=self.user_ns, |
|
2227 | namespace=self.user_ns, | |
2228 | global_namespace=self.user_global_ns, |
|
2228 | global_namespace=self.user_global_ns, | |
2229 | parent=self, |
|
2229 | parent=self, | |
2230 | ) |
|
2230 | ) | |
2231 | self.configurables.append(self.Completer) |
|
2231 | self.configurables.append(self.Completer) | |
2232 |
|
2232 | |||
2233 | # Add custom completers to the basic ones built into IPCompleter |
|
2233 | # Add custom completers to the basic ones built into IPCompleter | |
2234 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) |
|
2234 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) | |
2235 | self.strdispatchers['complete_command'] = sdisp |
|
2235 | self.strdispatchers['complete_command'] = sdisp | |
2236 | self.Completer.custom_completers = sdisp |
|
2236 | self.Completer.custom_completers = sdisp | |
2237 |
|
2237 | |||
2238 | self.set_hook('complete_command', module_completer, str_key = 'import') |
|
2238 | self.set_hook('complete_command', module_completer, str_key = 'import') | |
2239 | self.set_hook('complete_command', module_completer, str_key = 'from') |
|
2239 | self.set_hook('complete_command', module_completer, str_key = 'from') | |
2240 | self.set_hook('complete_command', module_completer, str_key = '%aimport') |
|
2240 | self.set_hook('complete_command', module_completer, str_key = '%aimport') | |
2241 | self.set_hook('complete_command', magic_run_completer, str_key = '%run') |
|
2241 | self.set_hook('complete_command', magic_run_completer, str_key = '%run') | |
2242 | self.set_hook('complete_command', cd_completer, str_key = '%cd') |
|
2242 | self.set_hook('complete_command', cd_completer, str_key = '%cd') | |
2243 | self.set_hook('complete_command', reset_completer, str_key = '%reset') |
|
2243 | self.set_hook('complete_command', reset_completer, str_key = '%reset') | |
2244 |
|
2244 | |||
2245 | @skip_doctest |
|
2245 | @skip_doctest | |
2246 | def complete(self, text, line=None, cursor_pos=None): |
|
2246 | def complete(self, text, line=None, cursor_pos=None): | |
2247 | """Return the completed text and a list of completions. |
|
2247 | """Return the completed text and a list of completions. | |
2248 |
|
2248 | |||
2249 | Parameters |
|
2249 | Parameters | |
2250 | ---------- |
|
2250 | ---------- | |
2251 | text : string |
|
2251 | text : string | |
2252 | A string of text to be completed on. It can be given as empty and |
|
2252 | A string of text to be completed on. It can be given as empty and | |
2253 | instead a line/position pair are given. In this case, the |
|
2253 | instead a line/position pair are given. In this case, the | |
2254 | completer itself will split the line like readline does. |
|
2254 | completer itself will split the line like readline does. | |
2255 | line : string, optional |
|
2255 | line : string, optional | |
2256 | The complete line that text is part of. |
|
2256 | The complete line that text is part of. | |
2257 | cursor_pos : int, optional |
|
2257 | cursor_pos : int, optional | |
2258 | The position of the cursor on the input line. |
|
2258 | The position of the cursor on the input line. | |
2259 |
|
2259 | |||
2260 | Returns |
|
2260 | Returns | |
2261 | ------- |
|
2261 | ------- | |
2262 | text : string |
|
2262 | text : string | |
2263 | The actual text that was completed. |
|
2263 | The actual text that was completed. | |
2264 | matches : list |
|
2264 | matches : list | |
2265 | A sorted list with all possible completions. |
|
2265 | A sorted list with all possible completions. | |
2266 |
|
2266 | |||
2267 | Notes |
|
2267 | Notes | |
2268 | ----- |
|
2268 | ----- | |
2269 | The optional arguments allow the completion to take more context into |
|
2269 | The optional arguments allow the completion to take more context into | |
2270 | account, and are part of the low-level completion API. |
|
2270 | account, and are part of the low-level completion API. | |
2271 |
|
2271 | |||
2272 | This is a wrapper around the completion mechanism, similar to what |
|
2272 | This is a wrapper around the completion mechanism, similar to what | |
2273 | readline does at the command line when the TAB key is hit. By |
|
2273 | readline does at the command line when the TAB key is hit. By | |
2274 | exposing it as a method, it can be used by other non-readline |
|
2274 | exposing it as a method, it can be used by other non-readline | |
2275 | environments (such as GUIs) for text completion. |
|
2275 | environments (such as GUIs) for text completion. | |
2276 |
|
2276 | |||
2277 | Examples |
|
2277 | Examples | |
2278 | -------- |
|
2278 | -------- | |
2279 | In [1]: x = 'hello' |
|
2279 | In [1]: x = 'hello' | |
2280 |
|
2280 | |||
2281 | In [2]: _ip.complete('x.l') |
|
2281 | In [2]: _ip.complete('x.l') | |
2282 | Out[2]: ('x.l', ['x.ljust', 'x.lower', 'x.lstrip']) |
|
2282 | Out[2]: ('x.l', ['x.ljust', 'x.lower', 'x.lstrip']) | |
2283 | """ |
|
2283 | """ | |
2284 |
|
2284 | |||
2285 | # Inject names into __builtin__ so we can complete on the added names. |
|
2285 | # Inject names into __builtin__ so we can complete on the added names. | |
2286 | with self.builtin_trap: |
|
2286 | with self.builtin_trap: | |
2287 | return self.Completer.complete(text, line, cursor_pos) |
|
2287 | return self.Completer.complete(text, line, cursor_pos) | |
2288 |
|
2288 | |||
2289 | def set_custom_completer(self, completer, pos=0) -> None: |
|
2289 | def set_custom_completer(self, completer, pos=0) -> None: | |
2290 | """Adds a new custom completer function. |
|
2290 | """Adds a new custom completer function. | |
2291 |
|
2291 | |||
2292 | The position argument (defaults to 0) is the index in the completers |
|
2292 | The position argument (defaults to 0) is the index in the completers | |
2293 | list where you want the completer to be inserted. |
|
2293 | list where you want the completer to be inserted. | |
2294 |
|
2294 | |||
2295 | `completer` should have the following signature:: |
|
2295 | `completer` should have the following signature:: | |
2296 |
|
2296 | |||
2297 | def completion(self: Completer, text: string) -> List[str]: |
|
2297 | def completion(self: Completer, text: string) -> List[str]: | |
2298 | raise NotImplementedError |
|
2298 | raise NotImplementedError | |
2299 |
|
2299 | |||
2300 | It will be bound to the current Completer instance and pass some text |
|
2300 | It will be bound to the current Completer instance and pass some text | |
2301 | and return a list with current completions to suggest to the user. |
|
2301 | and return a list with current completions to suggest to the user. | |
2302 | """ |
|
2302 | """ | |
2303 |
|
2303 | |||
2304 | newcomp = types.MethodType(completer, self.Completer) |
|
2304 | newcomp = types.MethodType(completer, self.Completer) | |
2305 | self.Completer.custom_matchers.insert(pos,newcomp) |
|
2305 | self.Completer.custom_matchers.insert(pos,newcomp) | |
2306 |
|
2306 | |||
2307 | def set_completer_frame(self, frame=None): |
|
2307 | def set_completer_frame(self, frame=None): | |
2308 | """Set the frame of the completer.""" |
|
2308 | """Set the frame of the completer.""" | |
2309 | if frame: |
|
2309 | if frame: | |
2310 | self.Completer.namespace = frame.f_locals |
|
2310 | self.Completer.namespace = frame.f_locals | |
2311 | self.Completer.global_namespace = frame.f_globals |
|
2311 | self.Completer.global_namespace = frame.f_globals | |
2312 | else: |
|
2312 | else: | |
2313 | self.Completer.namespace = self.user_ns |
|
2313 | self.Completer.namespace = self.user_ns | |
2314 | self.Completer.global_namespace = self.user_global_ns |
|
2314 | self.Completer.global_namespace = self.user_global_ns | |
2315 |
|
2315 | |||
2316 | #------------------------------------------------------------------------- |
|
2316 | #------------------------------------------------------------------------- | |
2317 | # Things related to magics |
|
2317 | # Things related to magics | |
2318 | #------------------------------------------------------------------------- |
|
2318 | #------------------------------------------------------------------------- | |
2319 |
|
2319 | |||
2320 | def init_magics(self): |
|
2320 | def init_magics(self): | |
2321 | from IPython.core import magics as m |
|
2321 | from IPython.core import magics as m | |
2322 | self.magics_manager = magic.MagicsManager(shell=self, |
|
2322 | self.magics_manager = magic.MagicsManager(shell=self, | |
2323 | parent=self, |
|
2323 | parent=self, | |
2324 | user_magics=m.UserMagics(self)) |
|
2324 | user_magics=m.UserMagics(self)) | |
2325 | self.configurables.append(self.magics_manager) |
|
2325 | self.configurables.append(self.magics_manager) | |
2326 |
|
2326 | |||
2327 | # Expose as public API from the magics manager |
|
2327 | # Expose as public API from the magics manager | |
2328 | self.register_magics = self.magics_manager.register |
|
2328 | self.register_magics = self.magics_manager.register | |
2329 |
|
2329 | |||
2330 | self.register_magics(m.AutoMagics, m.BasicMagics, m.CodeMagics, |
|
2330 | self.register_magics(m.AutoMagics, m.BasicMagics, m.CodeMagics, | |
2331 | m.ConfigMagics, m.DisplayMagics, m.ExecutionMagics, |
|
2331 | m.ConfigMagics, m.DisplayMagics, m.ExecutionMagics, | |
2332 | m.ExtensionMagics, m.HistoryMagics, m.LoggingMagics, |
|
2332 | m.ExtensionMagics, m.HistoryMagics, m.LoggingMagics, | |
2333 | m.NamespaceMagics, m.OSMagics, m.PackagingMagics, |
|
2333 | m.NamespaceMagics, m.OSMagics, m.PackagingMagics, | |
2334 | m.PylabMagics, m.ScriptMagics, |
|
2334 | m.PylabMagics, m.ScriptMagics, | |
2335 | ) |
|
2335 | ) | |
2336 | self.register_magics(m.AsyncMagics) |
|
2336 | self.register_magics(m.AsyncMagics) | |
2337 |
|
2337 | |||
2338 | # Register Magic Aliases |
|
2338 | # Register Magic Aliases | |
2339 | mman = self.magics_manager |
|
2339 | mman = self.magics_manager | |
2340 | # FIXME: magic aliases should be defined by the Magics classes |
|
2340 | # FIXME: magic aliases should be defined by the Magics classes | |
2341 | # or in MagicsManager, not here |
|
2341 | # or in MagicsManager, not here | |
2342 | mman.register_alias('ed', 'edit') |
|
2342 | mman.register_alias('ed', 'edit') | |
2343 | mman.register_alias('hist', 'history') |
|
2343 | mman.register_alias('hist', 'history') | |
2344 | mman.register_alias('rep', 'recall') |
|
2344 | mman.register_alias('rep', 'recall') | |
2345 | mman.register_alias('SVG', 'svg', 'cell') |
|
2345 | mman.register_alias('SVG', 'svg', 'cell') | |
2346 | mman.register_alias('HTML', 'html', 'cell') |
|
2346 | mman.register_alias('HTML', 'html', 'cell') | |
2347 | mman.register_alias('file', 'writefile', 'cell') |
|
2347 | mman.register_alias('file', 'writefile', 'cell') | |
2348 |
|
2348 | |||
2349 | # FIXME: Move the color initialization to the DisplayHook, which |
|
2349 | # FIXME: Move the color initialization to the DisplayHook, which | |
2350 | # should be split into a prompt manager and displayhook. We probably |
|
2350 | # should be split into a prompt manager and displayhook. We probably | |
2351 | # even need a centralize colors management object. |
|
2351 | # even need a centralize colors management object. | |
2352 | self.run_line_magic('colors', self.colors) |
|
2352 | self.run_line_magic('colors', self.colors) | |
2353 |
|
2353 | |||
2354 | # Defined here so that it's included in the documentation |
|
2354 | # Defined here so that it's included in the documentation | |
2355 | @functools.wraps(magic.MagicsManager.register_function) |
|
2355 | @functools.wraps(magic.MagicsManager.register_function) | |
2356 | def register_magic_function(self, func, magic_kind='line', magic_name=None): |
|
2356 | def register_magic_function(self, func, magic_kind='line', magic_name=None): | |
2357 | self.magics_manager.register_function( |
|
2357 | self.magics_manager.register_function( | |
2358 | func, magic_kind=magic_kind, magic_name=magic_name |
|
2358 | func, magic_kind=magic_kind, magic_name=magic_name | |
2359 | ) |
|
2359 | ) | |
2360 |
|
2360 | |||
2361 | def _find_with_lazy_load(self, /, type_, magic_name: str): |
|
2361 | def _find_with_lazy_load(self, /, type_, magic_name: str): | |
2362 | """ |
|
2362 | """ | |
2363 | Try to find a magic potentially lazy-loading it. |
|
2363 | Try to find a magic potentially lazy-loading it. | |
2364 |
|
2364 | |||
2365 | Parameters |
|
2365 | Parameters | |
2366 | ---------- |
|
2366 | ---------- | |
2367 |
|
2367 | |||
2368 | type_: "line"|"cell" |
|
2368 | type_: "line"|"cell" | |
2369 | the type of magics we are trying to find/lazy load. |
|
2369 | the type of magics we are trying to find/lazy load. | |
2370 | magic_name: str |
|
2370 | magic_name: str | |
2371 | The name of the magic we are trying to find/lazy load |
|
2371 | The name of the magic we are trying to find/lazy load | |
2372 |
|
2372 | |||
2373 |
|
2373 | |||
2374 | Note that this may have any side effects |
|
2374 | Note that this may have any side effects | |
2375 | """ |
|
2375 | """ | |
2376 | finder = {"line": self.find_line_magic, "cell": self.find_cell_magic}[type_] |
|
2376 | finder = {"line": self.find_line_magic, "cell": self.find_cell_magic}[type_] | |
2377 | fn = finder(magic_name) |
|
2377 | fn = finder(magic_name) | |
2378 | if fn is not None: |
|
2378 | if fn is not None: | |
2379 | return fn |
|
2379 | return fn | |
2380 | lazy = self.magics_manager.lazy_magics.get(magic_name) |
|
2380 | lazy = self.magics_manager.lazy_magics.get(magic_name) | |
2381 | if lazy is None: |
|
2381 | if lazy is None: | |
2382 | return None |
|
2382 | return None | |
2383 |
|
2383 | |||
2384 | self.run_line_magic("load_ext", lazy) |
|
2384 | self.run_line_magic("load_ext", lazy) | |
2385 | res = finder(magic_name) |
|
2385 | res = finder(magic_name) | |
2386 | return res |
|
2386 | return res | |
2387 |
|
2387 | |||
2388 | def run_line_magic(self, magic_name: str, line, _stack_depth=1): |
|
2388 | def run_line_magic(self, magic_name: str, line, _stack_depth=1): | |
2389 | """Execute the given line magic. |
|
2389 | """Execute the given line magic. | |
2390 |
|
2390 | |||
2391 | Parameters |
|
2391 | Parameters | |
2392 | ---------- |
|
2392 | ---------- | |
2393 | magic_name : str |
|
2393 | magic_name : str | |
2394 | Name of the desired magic function, without '%' prefix. |
|
2394 | Name of the desired magic function, without '%' prefix. | |
2395 | line : str |
|
2395 | line : str | |
2396 | The rest of the input line as a single string. |
|
2396 | The rest of the input line as a single string. | |
2397 | _stack_depth : int |
|
2397 | _stack_depth : int | |
2398 | If run_line_magic() is called from magic() then _stack_depth=2. |
|
2398 | If run_line_magic() is called from magic() then _stack_depth=2. | |
2399 | This is added to ensure backward compatibility for use of 'get_ipython().magic()' |
|
2399 | This is added to ensure backward compatibility for use of 'get_ipython().magic()' | |
2400 | """ |
|
2400 | """ | |
2401 | fn = self._find_with_lazy_load("line", magic_name) |
|
2401 | fn = self._find_with_lazy_load("line", magic_name) | |
2402 | if fn is None: |
|
2402 | if fn is None: | |
2403 | lazy = self.magics_manager.lazy_magics.get(magic_name) |
|
2403 | lazy = self.magics_manager.lazy_magics.get(magic_name) | |
2404 | if lazy: |
|
2404 | if lazy: | |
2405 | self.run_line_magic("load_ext", lazy) |
|
2405 | self.run_line_magic("load_ext", lazy) | |
2406 | fn = self.find_line_magic(magic_name) |
|
2406 | fn = self.find_line_magic(magic_name) | |
2407 | if fn is None: |
|
2407 | if fn is None: | |
2408 | cm = self.find_cell_magic(magic_name) |
|
2408 | cm = self.find_cell_magic(magic_name) | |
2409 | etpl = "Line magic function `%%%s` not found%s." |
|
2409 | etpl = "Line magic function `%%%s` not found%s." | |
2410 | extra = '' if cm is None else (' (But cell magic `%%%%%s` exists, ' |
|
2410 | extra = '' if cm is None else (' (But cell magic `%%%%%s` exists, ' | |
2411 | 'did you mean that instead?)' % magic_name ) |
|
2411 | 'did you mean that instead?)' % magic_name ) | |
2412 | raise UsageError(etpl % (magic_name, extra)) |
|
2412 | raise UsageError(etpl % (magic_name, extra)) | |
2413 | else: |
|
2413 | else: | |
2414 | # Note: this is the distance in the stack to the user's frame. |
|
2414 | # Note: this is the distance in the stack to the user's frame. | |
2415 | # This will need to be updated if the internal calling logic gets |
|
2415 | # This will need to be updated if the internal calling logic gets | |
2416 | # refactored, or else we'll be expanding the wrong variables. |
|
2416 | # refactored, or else we'll be expanding the wrong variables. | |
2417 |
|
2417 | |||
2418 | # Determine stack_depth depending on where run_line_magic() has been called |
|
2418 | # Determine stack_depth depending on where run_line_magic() has been called | |
2419 | stack_depth = _stack_depth |
|
2419 | stack_depth = _stack_depth | |
2420 | if getattr(fn, magic.MAGIC_NO_VAR_EXPAND_ATTR, False): |
|
2420 | if getattr(fn, magic.MAGIC_NO_VAR_EXPAND_ATTR, False): | |
2421 | # magic has opted out of var_expand |
|
2421 | # magic has opted out of var_expand | |
2422 | magic_arg_s = line |
|
2422 | magic_arg_s = line | |
2423 | else: |
|
2423 | else: | |
2424 | magic_arg_s = self.var_expand(line, stack_depth) |
|
2424 | magic_arg_s = self.var_expand(line, stack_depth) | |
2425 | # Put magic args in a list so we can call with f(*a) syntax |
|
2425 | # Put magic args in a list so we can call with f(*a) syntax | |
2426 | args = [magic_arg_s] |
|
2426 | args = [magic_arg_s] | |
2427 | kwargs = {} |
|
2427 | kwargs = {} | |
2428 | # Grab local namespace if we need it: |
|
2428 | # Grab local namespace if we need it: | |
2429 | if getattr(fn, "needs_local_scope", False): |
|
2429 | if getattr(fn, "needs_local_scope", False): | |
2430 | kwargs['local_ns'] = self.get_local_scope(stack_depth) |
|
2430 | kwargs['local_ns'] = self.get_local_scope(stack_depth) | |
2431 | with self.builtin_trap: |
|
2431 | with self.builtin_trap: | |
2432 | result = fn(*args, **kwargs) |
|
2432 | result = fn(*args, **kwargs) | |
2433 |
|
2433 | |||
2434 | # The code below prevents the output from being displayed |
|
2434 | # The code below prevents the output from being displayed | |
2435 |
# when using magics with deco |
|
2435 | # when using magics with decorator @output_can_be_silenced | |
2436 | # when the last Python token in the expression is a ';'. |
|
2436 | # when the last Python token in the expression is a ';'. | |
2437 | if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False): |
|
2437 | if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False): | |
2438 | if DisplayHook.semicolon_at_end_of_expression(magic_arg_s): |
|
2438 | if DisplayHook.semicolon_at_end_of_expression(magic_arg_s): | |
2439 | return None |
|
2439 | return None | |
2440 |
|
2440 | |||
2441 | return result |
|
2441 | return result | |
2442 |
|
2442 | |||
2443 | def get_local_scope(self, stack_depth): |
|
2443 | def get_local_scope(self, stack_depth): | |
2444 | """Get local scope at given stack depth. |
|
2444 | """Get local scope at given stack depth. | |
2445 |
|
2445 | |||
2446 | Parameters |
|
2446 | Parameters | |
2447 | ---------- |
|
2447 | ---------- | |
2448 | stack_depth : int |
|
2448 | stack_depth : int | |
2449 | Depth relative to calling frame |
|
2449 | Depth relative to calling frame | |
2450 | """ |
|
2450 | """ | |
2451 | return sys._getframe(stack_depth + 1).f_locals |
|
2451 | return sys._getframe(stack_depth + 1).f_locals | |
2452 |
|
2452 | |||
2453 | def run_cell_magic(self, magic_name, line, cell): |
|
2453 | def run_cell_magic(self, magic_name, line, cell): | |
2454 | """Execute the given cell magic. |
|
2454 | """Execute the given cell magic. | |
2455 |
|
2455 | |||
2456 | Parameters |
|
2456 | Parameters | |
2457 | ---------- |
|
2457 | ---------- | |
2458 | magic_name : str |
|
2458 | magic_name : str | |
2459 | Name of the desired magic function, without '%' prefix. |
|
2459 | Name of the desired magic function, without '%' prefix. | |
2460 | line : str |
|
2460 | line : str | |
2461 | The rest of the first input line as a single string. |
|
2461 | The rest of the first input line as a single string. | |
2462 | cell : str |
|
2462 | cell : str | |
2463 | The body of the cell as a (possibly multiline) string. |
|
2463 | The body of the cell as a (possibly multiline) string. | |
2464 | """ |
|
2464 | """ | |
2465 | fn = self._find_with_lazy_load("cell", magic_name) |
|
2465 | fn = self._find_with_lazy_load("cell", magic_name) | |
2466 | if fn is None: |
|
2466 | if fn is None: | |
2467 | lm = self.find_line_magic(magic_name) |
|
2467 | lm = self.find_line_magic(magic_name) | |
2468 | etpl = "Cell magic `%%{0}` not found{1}." |
|
2468 | etpl = "Cell magic `%%{0}` not found{1}." | |
2469 | extra = '' if lm is None else (' (But line magic `%{0}` exists, ' |
|
2469 | extra = '' if lm is None else (' (But line magic `%{0}` exists, ' | |
2470 | 'did you mean that instead?)'.format(magic_name)) |
|
2470 | 'did you mean that instead?)'.format(magic_name)) | |
2471 | raise UsageError(etpl.format(magic_name, extra)) |
|
2471 | raise UsageError(etpl.format(magic_name, extra)) | |
2472 | elif cell == '': |
|
2472 | elif cell == '': | |
2473 | message = '%%{0} is a cell magic, but the cell body is empty.'.format(magic_name) |
|
2473 | message = '%%{0} is a cell magic, but the cell body is empty.'.format(magic_name) | |
2474 | if self.find_line_magic(magic_name) is not None: |
|
2474 | if self.find_line_magic(magic_name) is not None: | |
2475 | message += ' Did you mean the line magic %{0} (single %)?'.format(magic_name) |
|
2475 | message += ' Did you mean the line magic %{0} (single %)?'.format(magic_name) | |
2476 | raise UsageError(message) |
|
2476 | raise UsageError(message) | |
2477 | else: |
|
2477 | else: | |
2478 | # Note: this is the distance in the stack to the user's frame. |
|
2478 | # Note: this is the distance in the stack to the user's frame. | |
2479 | # This will need to be updated if the internal calling logic gets |
|
2479 | # This will need to be updated if the internal calling logic gets | |
2480 | # refactored, or else we'll be expanding the wrong variables. |
|
2480 | # refactored, or else we'll be expanding the wrong variables. | |
2481 | stack_depth = 2 |
|
2481 | stack_depth = 2 | |
2482 | if getattr(fn, magic.MAGIC_NO_VAR_EXPAND_ATTR, False): |
|
2482 | if getattr(fn, magic.MAGIC_NO_VAR_EXPAND_ATTR, False): | |
2483 | # magic has opted out of var_expand |
|
2483 | # magic has opted out of var_expand | |
2484 | magic_arg_s = line |
|
2484 | magic_arg_s = line | |
2485 | else: |
|
2485 | else: | |
2486 | magic_arg_s = self.var_expand(line, stack_depth) |
|
2486 | magic_arg_s = self.var_expand(line, stack_depth) | |
2487 | kwargs = {} |
|
2487 | kwargs = {} | |
2488 | if getattr(fn, "needs_local_scope", False): |
|
2488 | if getattr(fn, "needs_local_scope", False): | |
2489 | kwargs['local_ns'] = self.user_ns |
|
2489 | kwargs['local_ns'] = self.user_ns | |
2490 |
|
2490 | |||
2491 | with self.builtin_trap: |
|
2491 | with self.builtin_trap: | |
2492 | args = (magic_arg_s, cell) |
|
2492 | args = (magic_arg_s, cell) | |
2493 | result = fn(*args, **kwargs) |
|
2493 | result = fn(*args, **kwargs) | |
2494 |
|
2494 | |||
2495 | # The code below prevents the output from being displayed |
|
2495 | # The code below prevents the output from being displayed | |
2496 |
# when using magics with deco |
|
2496 | # when using magics with decorator @output_can_be_silenced | |
2497 | # when the last Python token in the expression is a ';'. |
|
2497 | # when the last Python token in the expression is a ';'. | |
2498 | if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False): |
|
2498 | if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False): | |
2499 | if DisplayHook.semicolon_at_end_of_expression(cell): |
|
2499 | if DisplayHook.semicolon_at_end_of_expression(cell): | |
2500 | return None |
|
2500 | return None | |
2501 |
|
2501 | |||
2502 | return result |
|
2502 | return result | |
2503 |
|
2503 | |||
2504 | def find_line_magic(self, magic_name): |
|
2504 | def find_line_magic(self, magic_name): | |
2505 | """Find and return a line magic by name. |
|
2505 | """Find and return a line magic by name. | |
2506 |
|
2506 | |||
2507 | Returns None if the magic isn't found.""" |
|
2507 | Returns None if the magic isn't found.""" | |
2508 | return self.magics_manager.magics['line'].get(magic_name) |
|
2508 | return self.magics_manager.magics['line'].get(magic_name) | |
2509 |
|
2509 | |||
2510 | def find_cell_magic(self, magic_name): |
|
2510 | def find_cell_magic(self, magic_name): | |
2511 | """Find and return a cell magic by name. |
|
2511 | """Find and return a cell magic by name. | |
2512 |
|
2512 | |||
2513 | Returns None if the magic isn't found.""" |
|
2513 | Returns None if the magic isn't found.""" | |
2514 | return self.magics_manager.magics['cell'].get(magic_name) |
|
2514 | return self.magics_manager.magics['cell'].get(magic_name) | |
2515 |
|
2515 | |||
2516 | def find_magic(self, magic_name, magic_kind='line'): |
|
2516 | def find_magic(self, magic_name, magic_kind='line'): | |
2517 | """Find and return a magic of the given type by name. |
|
2517 | """Find and return a magic of the given type by name. | |
2518 |
|
2518 | |||
2519 | Returns None if the magic isn't found.""" |
|
2519 | Returns None if the magic isn't found.""" | |
2520 | return self.magics_manager.magics[magic_kind].get(magic_name) |
|
2520 | return self.magics_manager.magics[magic_kind].get(magic_name) | |
2521 |
|
2521 | |||
2522 | def magic(self, arg_s): |
|
2522 | def magic(self, arg_s): | |
2523 | """ |
|
2523 | """ | |
2524 | DEPRECATED |
|
2524 | DEPRECATED | |
2525 |
|
2525 | |||
2526 | Deprecated since IPython 0.13 (warning added in |
|
2526 | Deprecated since IPython 0.13 (warning added in | |
2527 | 8.1), use run_line_magic(magic_name, parameter_s). |
|
2527 | 8.1), use run_line_magic(magic_name, parameter_s). | |
2528 |
|
2528 | |||
2529 | Call a magic function by name. |
|
2529 | Call a magic function by name. | |
2530 |
|
2530 | |||
2531 | Input: a string containing the name of the magic function to call and |
|
2531 | Input: a string containing the name of the magic function to call and | |
2532 | any additional arguments to be passed to the magic. |
|
2532 | any additional arguments to be passed to the magic. | |
2533 |
|
2533 | |||
2534 | magic('name -opt foo bar') is equivalent to typing at the ipython |
|
2534 | magic('name -opt foo bar') is equivalent to typing at the ipython | |
2535 | prompt: |
|
2535 | prompt: | |
2536 |
|
2536 | |||
2537 | In[1]: %name -opt foo bar |
|
2537 | In[1]: %name -opt foo bar | |
2538 |
|
2538 | |||
2539 | To call a magic without arguments, simply use magic('name'). |
|
2539 | To call a magic without arguments, simply use magic('name'). | |
2540 |
|
2540 | |||
2541 | This provides a proper Python function to call IPython's magics in any |
|
2541 | This provides a proper Python function to call IPython's magics in any | |
2542 | valid Python code you can type at the interpreter, including loops and |
|
2542 | valid Python code you can type at the interpreter, including loops and | |
2543 | compound statements. |
|
2543 | compound statements. | |
2544 | """ |
|
2544 | """ | |
2545 | warnings.warn( |
|
2545 | warnings.warn( | |
2546 | "`magic(...)` is deprecated since IPython 0.13 (warning added in " |
|
2546 | "`magic(...)` is deprecated since IPython 0.13 (warning added in " | |
2547 | "8.1), use run_line_magic(magic_name, parameter_s).", |
|
2547 | "8.1), use run_line_magic(magic_name, parameter_s).", | |
2548 | DeprecationWarning, |
|
2548 | DeprecationWarning, | |
2549 | stacklevel=2, |
|
2549 | stacklevel=2, | |
2550 | ) |
|
2550 | ) | |
2551 | # TODO: should we issue a loud deprecation warning here? |
|
2551 | # TODO: should we issue a loud deprecation warning here? | |
2552 | magic_name, _, magic_arg_s = arg_s.partition(' ') |
|
2552 | magic_name, _, magic_arg_s = arg_s.partition(' ') | |
2553 | magic_name = magic_name.lstrip(prefilter.ESC_MAGIC) |
|
2553 | magic_name = magic_name.lstrip(prefilter.ESC_MAGIC) | |
2554 | return self.run_line_magic(magic_name, magic_arg_s, _stack_depth=2) |
|
2554 | return self.run_line_magic(magic_name, magic_arg_s, _stack_depth=2) | |
2555 |
|
2555 | |||
2556 | #------------------------------------------------------------------------- |
|
2556 | #------------------------------------------------------------------------- | |
2557 | # Things related to macros |
|
2557 | # Things related to macros | |
2558 | #------------------------------------------------------------------------- |
|
2558 | #------------------------------------------------------------------------- | |
2559 |
|
2559 | |||
2560 | def define_macro(self, name, themacro): |
|
2560 | def define_macro(self, name, themacro): | |
2561 | """Define a new macro |
|
2561 | """Define a new macro | |
2562 |
|
2562 | |||
2563 | Parameters |
|
2563 | Parameters | |
2564 | ---------- |
|
2564 | ---------- | |
2565 | name : str |
|
2565 | name : str | |
2566 | The name of the macro. |
|
2566 | The name of the macro. | |
2567 | themacro : str or Macro |
|
2567 | themacro : str or Macro | |
2568 | The action to do upon invoking the macro. If a string, a new |
|
2568 | The action to do upon invoking the macro. If a string, a new | |
2569 | Macro object is created by passing the string to it. |
|
2569 | Macro object is created by passing the string to it. | |
2570 | """ |
|
2570 | """ | |
2571 |
|
2571 | |||
2572 | from IPython.core import macro |
|
2572 | from IPython.core import macro | |
2573 |
|
2573 | |||
2574 | if isinstance(themacro, str): |
|
2574 | if isinstance(themacro, str): | |
2575 | themacro = macro.Macro(themacro) |
|
2575 | themacro = macro.Macro(themacro) | |
2576 | if not isinstance(themacro, macro.Macro): |
|
2576 | if not isinstance(themacro, macro.Macro): | |
2577 | raise ValueError('A macro must be a string or a Macro instance.') |
|
2577 | raise ValueError('A macro must be a string or a Macro instance.') | |
2578 | self.user_ns[name] = themacro |
|
2578 | self.user_ns[name] = themacro | |
2579 |
|
2579 | |||
2580 | #------------------------------------------------------------------------- |
|
2580 | #------------------------------------------------------------------------- | |
2581 | # Things related to the running of system commands |
|
2581 | # Things related to the running of system commands | |
2582 | #------------------------------------------------------------------------- |
|
2582 | #------------------------------------------------------------------------- | |
2583 |
|
2583 | |||
2584 | def system_piped(self, cmd): |
|
2584 | def system_piped(self, cmd): | |
2585 | """Call the given cmd in a subprocess, piping stdout/err |
|
2585 | """Call the given cmd in a subprocess, piping stdout/err | |
2586 |
|
2586 | |||
2587 | Parameters |
|
2587 | Parameters | |
2588 | ---------- |
|
2588 | ---------- | |
2589 | cmd : str |
|
2589 | cmd : str | |
2590 | Command to execute (can not end in '&', as background processes are |
|
2590 | Command to execute (can not end in '&', as background processes are | |
2591 | not supported. Should not be a command that expects input |
|
2591 | not supported. Should not be a command that expects input | |
2592 | other than simple text. |
|
2592 | other than simple text. | |
2593 | """ |
|
2593 | """ | |
2594 | if cmd.rstrip().endswith('&'): |
|
2594 | if cmd.rstrip().endswith('&'): | |
2595 | # this is *far* from a rigorous test |
|
2595 | # this is *far* from a rigorous test | |
2596 | # We do not support backgrounding processes because we either use |
|
2596 | # We do not support backgrounding processes because we either use | |
2597 | # pexpect or pipes to read from. Users can always just call |
|
2597 | # pexpect or pipes to read from. Users can always just call | |
2598 | # os.system() or use ip.system=ip.system_raw |
|
2598 | # os.system() or use ip.system=ip.system_raw | |
2599 | # if they really want a background process. |
|
2599 | # if they really want a background process. | |
2600 | raise OSError("Background processes not supported.") |
|
2600 | raise OSError("Background processes not supported.") | |
2601 |
|
2601 | |||
2602 | # we explicitly do NOT return the subprocess status code, because |
|
2602 | # we explicitly do NOT return the subprocess status code, because | |
2603 | # a non-None value would trigger :func:`sys.displayhook` calls. |
|
2603 | # a non-None value would trigger :func:`sys.displayhook` calls. | |
2604 | # Instead, we store the exit_code in user_ns. |
|
2604 | # Instead, we store the exit_code in user_ns. | |
2605 | self.user_ns['_exit_code'] = system(self.var_expand(cmd, depth=1)) |
|
2605 | self.user_ns['_exit_code'] = system(self.var_expand(cmd, depth=1)) | |
2606 |
|
2606 | |||
2607 | def system_raw(self, cmd): |
|
2607 | def system_raw(self, cmd): | |
2608 | """Call the given cmd in a subprocess using os.system on Windows or |
|
2608 | """Call the given cmd in a subprocess using os.system on Windows or | |
2609 | subprocess.call using the system shell on other platforms. |
|
2609 | subprocess.call using the system shell on other platforms. | |
2610 |
|
2610 | |||
2611 | Parameters |
|
2611 | Parameters | |
2612 | ---------- |
|
2612 | ---------- | |
2613 | cmd : str |
|
2613 | cmd : str | |
2614 | Command to execute. |
|
2614 | Command to execute. | |
2615 | """ |
|
2615 | """ | |
2616 | cmd = self.var_expand(cmd, depth=1) |
|
2616 | cmd = self.var_expand(cmd, depth=1) | |
2617 | # warn if there is an IPython magic alternative. |
|
2617 | # warn if there is an IPython magic alternative. | |
2618 | main_cmd = cmd.split()[0] |
|
2618 | main_cmd = cmd.split()[0] | |
2619 | has_magic_alternatives = ("pip", "conda", "cd") |
|
2619 | has_magic_alternatives = ("pip", "conda", "cd") | |
2620 |
|
2620 | |||
2621 | if main_cmd in has_magic_alternatives: |
|
2621 | if main_cmd in has_magic_alternatives: | |
2622 | warnings.warn( |
|
2622 | warnings.warn( | |
2623 | ( |
|
2623 | ( | |
2624 | "You executed the system command !{0} which may not work " |
|
2624 | "You executed the system command !{0} which may not work " | |
2625 | "as expected. Try the IPython magic %{0} instead." |
|
2625 | "as expected. Try the IPython magic %{0} instead." | |
2626 | ).format(main_cmd) |
|
2626 | ).format(main_cmd) | |
2627 | ) |
|
2627 | ) | |
2628 |
|
2628 | |||
2629 | # protect os.system from UNC paths on Windows, which it can't handle: |
|
2629 | # protect os.system from UNC paths on Windows, which it can't handle: | |
2630 | if sys.platform == 'win32': |
|
2630 | if sys.platform == 'win32': | |
2631 | from IPython.utils._process_win32 import AvoidUNCPath |
|
2631 | from IPython.utils._process_win32 import AvoidUNCPath | |
2632 | with AvoidUNCPath() as path: |
|
2632 | with AvoidUNCPath() as path: | |
2633 | if path is not None: |
|
2633 | if path is not None: | |
2634 | cmd = '"pushd %s &&"%s' % (path, cmd) |
|
2634 | cmd = '"pushd %s &&"%s' % (path, cmd) | |
2635 | try: |
|
2635 | try: | |
2636 | ec = os.system(cmd) |
|
2636 | ec = os.system(cmd) | |
2637 | except KeyboardInterrupt: |
|
2637 | except KeyboardInterrupt: | |
2638 | print('\n' + self.get_exception_only(), file=sys.stderr) |
|
2638 | print('\n' + self.get_exception_only(), file=sys.stderr) | |
2639 | ec = -2 |
|
2639 | ec = -2 | |
2640 | else: |
|
2640 | else: | |
2641 | # For posix the result of the subprocess.call() below is an exit |
|
2641 | # For posix the result of the subprocess.call() below is an exit | |
2642 | # code, which by convention is zero for success, positive for |
|
2642 | # code, which by convention is zero for success, positive for | |
2643 | # program failure. Exit codes above 128 are reserved for signals, |
|
2643 | # program failure. Exit codes above 128 are reserved for signals, | |
2644 | # and the formula for converting a signal to an exit code is usually |
|
2644 | # and the formula for converting a signal to an exit code is usually | |
2645 | # signal_number+128. To more easily differentiate between exit |
|
2645 | # signal_number+128. To more easily differentiate between exit | |
2646 | # codes and signals, ipython uses negative numbers. For instance |
|
2646 | # codes and signals, ipython uses negative numbers. For instance | |
2647 | # since control-c is signal 2 but exit code 130, ipython's |
|
2647 | # since control-c is signal 2 but exit code 130, ipython's | |
2648 | # _exit_code variable will read -2. Note that some shells like |
|
2648 | # _exit_code variable will read -2. Note that some shells like | |
2649 | # csh and fish don't follow sh/bash conventions for exit codes. |
|
2649 | # csh and fish don't follow sh/bash conventions for exit codes. | |
2650 | executable = os.environ.get('SHELL', None) |
|
2650 | executable = os.environ.get('SHELL', None) | |
2651 | try: |
|
2651 | try: | |
2652 | # Use env shell instead of default /bin/sh |
|
2652 | # Use env shell instead of default /bin/sh | |
2653 | ec = subprocess.call(cmd, shell=True, executable=executable) |
|
2653 | ec = subprocess.call(cmd, shell=True, executable=executable) | |
2654 | except KeyboardInterrupt: |
|
2654 | except KeyboardInterrupt: | |
2655 | # intercept control-C; a long traceback is not useful here |
|
2655 | # intercept control-C; a long traceback is not useful here | |
2656 | print('\n' + self.get_exception_only(), file=sys.stderr) |
|
2656 | print('\n' + self.get_exception_only(), file=sys.stderr) | |
2657 | ec = 130 |
|
2657 | ec = 130 | |
2658 | if ec > 128: |
|
2658 | if ec > 128: | |
2659 | ec = -(ec - 128) |
|
2659 | ec = -(ec - 128) | |
2660 |
|
2660 | |||
2661 | # We explicitly do NOT return the subprocess status code, because |
|
2661 | # We explicitly do NOT return the subprocess status code, because | |
2662 | # a non-None value would trigger :func:`sys.displayhook` calls. |
|
2662 | # a non-None value would trigger :func:`sys.displayhook` calls. | |
2663 | # Instead, we store the exit_code in user_ns. Note the semantics |
|
2663 | # Instead, we store the exit_code in user_ns. Note the semantics | |
2664 | # of _exit_code: for control-c, _exit_code == -signal.SIGNIT, |
|
2664 | # of _exit_code: for control-c, _exit_code == -signal.SIGNIT, | |
2665 | # but raising SystemExit(_exit_code) will give status 254! |
|
2665 | # but raising SystemExit(_exit_code) will give status 254! | |
2666 | self.user_ns['_exit_code'] = ec |
|
2666 | self.user_ns['_exit_code'] = ec | |
2667 |
|
2667 | |||
2668 | # use piped system by default, because it is better behaved |
|
2668 | # use piped system by default, because it is better behaved | |
2669 | system = system_piped |
|
2669 | system = system_piped | |
2670 |
|
2670 | |||
2671 | def getoutput(self, cmd, split=True, depth=0): |
|
2671 | def getoutput(self, cmd, split=True, depth=0): | |
2672 | """Get output (possibly including stderr) from a subprocess. |
|
2672 | """Get output (possibly including stderr) from a subprocess. | |
2673 |
|
2673 | |||
2674 | Parameters |
|
2674 | Parameters | |
2675 | ---------- |
|
2675 | ---------- | |
2676 | cmd : str |
|
2676 | cmd : str | |
2677 | Command to execute (can not end in '&', as background processes are |
|
2677 | Command to execute (can not end in '&', as background processes are | |
2678 | not supported. |
|
2678 | not supported. | |
2679 | split : bool, optional |
|
2679 | split : bool, optional | |
2680 | If True, split the output into an IPython SList. Otherwise, an |
|
2680 | If True, split the output into an IPython SList. Otherwise, an | |
2681 | IPython LSString is returned. These are objects similar to normal |
|
2681 | IPython LSString is returned. These are objects similar to normal | |
2682 | lists and strings, with a few convenience attributes for easier |
|
2682 | lists and strings, with a few convenience attributes for easier | |
2683 | manipulation of line-based output. You can use '?' on them for |
|
2683 | manipulation of line-based output. You can use '?' on them for | |
2684 | details. |
|
2684 | details. | |
2685 | depth : int, optional |
|
2685 | depth : int, optional | |
2686 | How many frames above the caller are the local variables which should |
|
2686 | How many frames above the caller are the local variables which should | |
2687 | be expanded in the command string? The default (0) assumes that the |
|
2687 | be expanded in the command string? The default (0) assumes that the | |
2688 | expansion variables are in the stack frame calling this function. |
|
2688 | expansion variables are in the stack frame calling this function. | |
2689 | """ |
|
2689 | """ | |
2690 | if cmd.rstrip().endswith('&'): |
|
2690 | if cmd.rstrip().endswith('&'): | |
2691 | # this is *far* from a rigorous test |
|
2691 | # this is *far* from a rigorous test | |
2692 | raise OSError("Background processes not supported.") |
|
2692 | raise OSError("Background processes not supported.") | |
2693 | out = getoutput(self.var_expand(cmd, depth=depth+1)) |
|
2693 | out = getoutput(self.var_expand(cmd, depth=depth+1)) | |
2694 | if split: |
|
2694 | if split: | |
2695 | out = SList(out.splitlines()) |
|
2695 | out = SList(out.splitlines()) | |
2696 | else: |
|
2696 | else: | |
2697 | out = LSString(out) |
|
2697 | out = LSString(out) | |
2698 | return out |
|
2698 | return out | |
2699 |
|
2699 | |||
2700 | #------------------------------------------------------------------------- |
|
2700 | #------------------------------------------------------------------------- | |
2701 | # Things related to aliases |
|
2701 | # Things related to aliases | |
2702 | #------------------------------------------------------------------------- |
|
2702 | #------------------------------------------------------------------------- | |
2703 |
|
2703 | |||
2704 | def init_alias(self): |
|
2704 | def init_alias(self): | |
2705 | self.alias_manager = AliasManager(shell=self, parent=self) |
|
2705 | self.alias_manager = AliasManager(shell=self, parent=self) | |
2706 | self.configurables.append(self.alias_manager) |
|
2706 | self.configurables.append(self.alias_manager) | |
2707 |
|
2707 | |||
2708 | #------------------------------------------------------------------------- |
|
2708 | #------------------------------------------------------------------------- | |
2709 | # Things related to extensions |
|
2709 | # Things related to extensions | |
2710 | #------------------------------------------------------------------------- |
|
2710 | #------------------------------------------------------------------------- | |
2711 |
|
2711 | |||
2712 | def init_extension_manager(self): |
|
2712 | def init_extension_manager(self): | |
2713 | self.extension_manager = ExtensionManager(shell=self, parent=self) |
|
2713 | self.extension_manager = ExtensionManager(shell=self, parent=self) | |
2714 | self.configurables.append(self.extension_manager) |
|
2714 | self.configurables.append(self.extension_manager) | |
2715 |
|
2715 | |||
2716 | #------------------------------------------------------------------------- |
|
2716 | #------------------------------------------------------------------------- | |
2717 | # Things related to payloads |
|
2717 | # Things related to payloads | |
2718 | #------------------------------------------------------------------------- |
|
2718 | #------------------------------------------------------------------------- | |
2719 |
|
2719 | |||
2720 | def init_payload(self): |
|
2720 | def init_payload(self): | |
2721 | self.payload_manager = PayloadManager(parent=self) |
|
2721 | self.payload_manager = PayloadManager(parent=self) | |
2722 | self.configurables.append(self.payload_manager) |
|
2722 | self.configurables.append(self.payload_manager) | |
2723 |
|
2723 | |||
2724 | #------------------------------------------------------------------------- |
|
2724 | #------------------------------------------------------------------------- | |
2725 | # Things related to the prefilter |
|
2725 | # Things related to the prefilter | |
2726 | #------------------------------------------------------------------------- |
|
2726 | #------------------------------------------------------------------------- | |
2727 |
|
2727 | |||
2728 | def init_prefilter(self): |
|
2728 | def init_prefilter(self): | |
2729 | self.prefilter_manager = PrefilterManager(shell=self, parent=self) |
|
2729 | self.prefilter_manager = PrefilterManager(shell=self, parent=self) | |
2730 | self.configurables.append(self.prefilter_manager) |
|
2730 | self.configurables.append(self.prefilter_manager) | |
2731 | # Ultimately this will be refactored in the new interpreter code, but |
|
2731 | # Ultimately this will be refactored in the new interpreter code, but | |
2732 | # for now, we should expose the main prefilter method (there's legacy |
|
2732 | # for now, we should expose the main prefilter method (there's legacy | |
2733 | # code out there that may rely on this). |
|
2733 | # code out there that may rely on this). | |
2734 | self.prefilter = self.prefilter_manager.prefilter_lines |
|
2734 | self.prefilter = self.prefilter_manager.prefilter_lines | |
2735 |
|
2735 | |||
2736 | def auto_rewrite_input(self, cmd): |
|
2736 | def auto_rewrite_input(self, cmd): | |
2737 | """Print to the screen the rewritten form of the user's command. |
|
2737 | """Print to the screen the rewritten form of the user's command. | |
2738 |
|
2738 | |||
2739 | This shows visual feedback by rewriting input lines that cause |
|
2739 | This shows visual feedback by rewriting input lines that cause | |
2740 | automatic calling to kick in, like:: |
|
2740 | automatic calling to kick in, like:: | |
2741 |
|
2741 | |||
2742 | /f x |
|
2742 | /f x | |
2743 |
|
2743 | |||
2744 | into:: |
|
2744 | into:: | |
2745 |
|
2745 | |||
2746 | ------> f(x) |
|
2746 | ------> f(x) | |
2747 |
|
2747 | |||
2748 | after the user's input prompt. This helps the user understand that the |
|
2748 | after the user's input prompt. This helps the user understand that the | |
2749 | input line was transformed automatically by IPython. |
|
2749 | input line was transformed automatically by IPython. | |
2750 | """ |
|
2750 | """ | |
2751 | if not self.show_rewritten_input: |
|
2751 | if not self.show_rewritten_input: | |
2752 | return |
|
2752 | return | |
2753 |
|
2753 | |||
2754 | # This is overridden in TerminalInteractiveShell to use fancy prompts |
|
2754 | # This is overridden in TerminalInteractiveShell to use fancy prompts | |
2755 | print("------> " + cmd) |
|
2755 | print("------> " + cmd) | |
2756 |
|
2756 | |||
2757 | #------------------------------------------------------------------------- |
|
2757 | #------------------------------------------------------------------------- | |
2758 | # Things related to extracting values/expressions from kernel and user_ns |
|
2758 | # Things related to extracting values/expressions from kernel and user_ns | |
2759 | #------------------------------------------------------------------------- |
|
2759 | #------------------------------------------------------------------------- | |
2760 |
|
2760 | |||
2761 | def _user_obj_error(self): |
|
2761 | def _user_obj_error(self): | |
2762 | """return simple exception dict |
|
2762 | """return simple exception dict | |
2763 |
|
2763 | |||
2764 | for use in user_expressions |
|
2764 | for use in user_expressions | |
2765 | """ |
|
2765 | """ | |
2766 |
|
2766 | |||
2767 | etype, evalue, tb = self._get_exc_info() |
|
2767 | etype, evalue, tb = self._get_exc_info() | |
2768 | stb = self.InteractiveTB.get_exception_only(etype, evalue) |
|
2768 | stb = self.InteractiveTB.get_exception_only(etype, evalue) | |
2769 |
|
2769 | |||
2770 | exc_info = { |
|
2770 | exc_info = { | |
2771 | "status": "error", |
|
2771 | "status": "error", | |
2772 | "traceback": stb, |
|
2772 | "traceback": stb, | |
2773 | "ename": etype.__name__, |
|
2773 | "ename": etype.__name__, | |
2774 | "evalue": py3compat.safe_unicode(evalue), |
|
2774 | "evalue": py3compat.safe_unicode(evalue), | |
2775 | } |
|
2775 | } | |
2776 |
|
2776 | |||
2777 | return exc_info |
|
2777 | return exc_info | |
2778 |
|
2778 | |||
2779 | def _format_user_obj(self, obj): |
|
2779 | def _format_user_obj(self, obj): | |
2780 | """format a user object to display dict |
|
2780 | """format a user object to display dict | |
2781 |
|
2781 | |||
2782 | for use in user_expressions |
|
2782 | for use in user_expressions | |
2783 | """ |
|
2783 | """ | |
2784 |
|
2784 | |||
2785 | data, md = self.display_formatter.format(obj) |
|
2785 | data, md = self.display_formatter.format(obj) | |
2786 | value = { |
|
2786 | value = { | |
2787 | 'status' : 'ok', |
|
2787 | 'status' : 'ok', | |
2788 | 'data' : data, |
|
2788 | 'data' : data, | |
2789 | 'metadata' : md, |
|
2789 | 'metadata' : md, | |
2790 | } |
|
2790 | } | |
2791 | return value |
|
2791 | return value | |
2792 |
|
2792 | |||
2793 | def user_expressions(self, expressions): |
|
2793 | def user_expressions(self, expressions): | |
2794 | """Evaluate a dict of expressions in the user's namespace. |
|
2794 | """Evaluate a dict of expressions in the user's namespace. | |
2795 |
|
2795 | |||
2796 | Parameters |
|
2796 | Parameters | |
2797 | ---------- |
|
2797 | ---------- | |
2798 | expressions : dict |
|
2798 | expressions : dict | |
2799 | A dict with string keys and string values. The expression values |
|
2799 | A dict with string keys and string values. The expression values | |
2800 | should be valid Python expressions, each of which will be evaluated |
|
2800 | should be valid Python expressions, each of which will be evaluated | |
2801 | in the user namespace. |
|
2801 | in the user namespace. | |
2802 |
|
2802 | |||
2803 | Returns |
|
2803 | Returns | |
2804 | ------- |
|
2804 | ------- | |
2805 | A dict, keyed like the input expressions dict, with the rich mime-typed |
|
2805 | A dict, keyed like the input expressions dict, with the rich mime-typed | |
2806 | display_data of each value. |
|
2806 | display_data of each value. | |
2807 | """ |
|
2807 | """ | |
2808 | out = {} |
|
2808 | out = {} | |
2809 | user_ns = self.user_ns |
|
2809 | user_ns = self.user_ns | |
2810 | global_ns = self.user_global_ns |
|
2810 | global_ns = self.user_global_ns | |
2811 |
|
2811 | |||
2812 | for key, expr in expressions.items(): |
|
2812 | for key, expr in expressions.items(): | |
2813 | try: |
|
2813 | try: | |
2814 | value = self._format_user_obj(eval(expr, global_ns, user_ns)) |
|
2814 | value = self._format_user_obj(eval(expr, global_ns, user_ns)) | |
2815 | except: |
|
2815 | except: | |
2816 | value = self._user_obj_error() |
|
2816 | value = self._user_obj_error() | |
2817 | out[key] = value |
|
2817 | out[key] = value | |
2818 | return out |
|
2818 | return out | |
2819 |
|
2819 | |||
2820 | #------------------------------------------------------------------------- |
|
2820 | #------------------------------------------------------------------------- | |
2821 | # Things related to the running of code |
|
2821 | # Things related to the running of code | |
2822 | #------------------------------------------------------------------------- |
|
2822 | #------------------------------------------------------------------------- | |
2823 |
|
2823 | |||
2824 | def ex(self, cmd): |
|
2824 | def ex(self, cmd): | |
2825 | """Execute a normal python statement in user namespace.""" |
|
2825 | """Execute a normal python statement in user namespace.""" | |
2826 | with self.builtin_trap: |
|
2826 | with self.builtin_trap: | |
2827 | exec(cmd, self.user_global_ns, self.user_ns) |
|
2827 | exec(cmd, self.user_global_ns, self.user_ns) | |
2828 |
|
2828 | |||
2829 | def ev(self, expr): |
|
2829 | def ev(self, expr): | |
2830 | """Evaluate python expression expr in user namespace. |
|
2830 | """Evaluate python expression expr in user namespace. | |
2831 |
|
2831 | |||
2832 | Returns the result of evaluation |
|
2832 | Returns the result of evaluation | |
2833 | """ |
|
2833 | """ | |
2834 | with self.builtin_trap: |
|
2834 | with self.builtin_trap: | |
2835 | return eval(expr, self.user_global_ns, self.user_ns) |
|
2835 | return eval(expr, self.user_global_ns, self.user_ns) | |
2836 |
|
2836 | |||
2837 | def safe_execfile(self, fname, *where, exit_ignore=False, raise_exceptions=False, shell_futures=False): |
|
2837 | def safe_execfile(self, fname, *where, exit_ignore=False, raise_exceptions=False, shell_futures=False): | |
2838 | """A safe version of the builtin execfile(). |
|
2838 | """A safe version of the builtin execfile(). | |
2839 |
|
2839 | |||
2840 | This version will never throw an exception, but instead print |
|
2840 | This version will never throw an exception, but instead print | |
2841 | helpful error messages to the screen. This only works on pure |
|
2841 | helpful error messages to the screen. This only works on pure | |
2842 | Python files with the .py extension. |
|
2842 | Python files with the .py extension. | |
2843 |
|
2843 | |||
2844 | Parameters |
|
2844 | Parameters | |
2845 | ---------- |
|
2845 | ---------- | |
2846 | fname : string |
|
2846 | fname : string | |
2847 | The name of the file to be executed. |
|
2847 | The name of the file to be executed. | |
2848 | *where : tuple |
|
2848 | *where : tuple | |
2849 | One or two namespaces, passed to execfile() as (globals,locals). |
|
2849 | One or two namespaces, passed to execfile() as (globals,locals). | |
2850 | If only one is given, it is passed as both. |
|
2850 | If only one is given, it is passed as both. | |
2851 | exit_ignore : bool (False) |
|
2851 | exit_ignore : bool (False) | |
2852 | If True, then silence SystemExit for non-zero status (it is always |
|
2852 | If True, then silence SystemExit for non-zero status (it is always | |
2853 | silenced for zero status, as it is so common). |
|
2853 | silenced for zero status, as it is so common). | |
2854 | raise_exceptions : bool (False) |
|
2854 | raise_exceptions : bool (False) | |
2855 | If True raise exceptions everywhere. Meant for testing. |
|
2855 | If True raise exceptions everywhere. Meant for testing. | |
2856 | shell_futures : bool (False) |
|
2856 | shell_futures : bool (False) | |
2857 | If True, the code will share future statements with the interactive |
|
2857 | If True, the code will share future statements with the interactive | |
2858 | shell. It will both be affected by previous __future__ imports, and |
|
2858 | shell. It will both be affected by previous __future__ imports, and | |
2859 | any __future__ imports in the code will affect the shell. If False, |
|
2859 | any __future__ imports in the code will affect the shell. If False, | |
2860 | __future__ imports are not shared in either direction. |
|
2860 | __future__ imports are not shared in either direction. | |
2861 |
|
2861 | |||
2862 | """ |
|
2862 | """ | |
2863 | fname = Path(fname).expanduser().resolve() |
|
2863 | fname = Path(fname).expanduser().resolve() | |
2864 |
|
2864 | |||
2865 | # Make sure we can open the file |
|
2865 | # Make sure we can open the file | |
2866 | try: |
|
2866 | try: | |
2867 | with fname.open("rb"): |
|
2867 | with fname.open("rb"): | |
2868 | pass |
|
2868 | pass | |
2869 | except: |
|
2869 | except: | |
2870 | warn('Could not open file <%s> for safe execution.' % fname) |
|
2870 | warn('Could not open file <%s> for safe execution.' % fname) | |
2871 | return |
|
2871 | return | |
2872 |
|
2872 | |||
2873 | # Find things also in current directory. This is needed to mimic the |
|
2873 | # Find things also in current directory. This is needed to mimic the | |
2874 | # behavior of running a script from the system command line, where |
|
2874 | # behavior of running a script from the system command line, where | |
2875 | # Python inserts the script's directory into sys.path |
|
2875 | # Python inserts the script's directory into sys.path | |
2876 | dname = str(fname.parent) |
|
2876 | dname = str(fname.parent) | |
2877 |
|
2877 | |||
2878 | with prepended_to_syspath(dname), self.builtin_trap: |
|
2878 | with prepended_to_syspath(dname), self.builtin_trap: | |
2879 | try: |
|
2879 | try: | |
2880 | glob, loc = (where + (None, ))[:2] |
|
2880 | glob, loc = (where + (None, ))[:2] | |
2881 | py3compat.execfile( |
|
2881 | py3compat.execfile( | |
2882 | fname, glob, loc, |
|
2882 | fname, glob, loc, | |
2883 | self.compile if shell_futures else None) |
|
2883 | self.compile if shell_futures else None) | |
2884 | except SystemExit as status: |
|
2884 | except SystemExit as status: | |
2885 | # If the call was made with 0 or None exit status (sys.exit(0) |
|
2885 | # If the call was made with 0 or None exit status (sys.exit(0) | |
2886 | # or sys.exit() ), don't bother showing a traceback, as both of |
|
2886 | # or sys.exit() ), don't bother showing a traceback, as both of | |
2887 | # these are considered normal by the OS: |
|
2887 | # these are considered normal by the OS: | |
2888 | # > python -c'import sys;sys.exit(0)'; echo $? |
|
2888 | # > python -c'import sys;sys.exit(0)'; echo $? | |
2889 | # 0 |
|
2889 | # 0 | |
2890 | # > python -c'import sys;sys.exit()'; echo $? |
|
2890 | # > python -c'import sys;sys.exit()'; echo $? | |
2891 | # 0 |
|
2891 | # 0 | |
2892 | # For other exit status, we show the exception unless |
|
2892 | # For other exit status, we show the exception unless | |
2893 | # explicitly silenced, but only in short form. |
|
2893 | # explicitly silenced, but only in short form. | |
2894 | if status.code: |
|
2894 | if status.code: | |
2895 | if raise_exceptions: |
|
2895 | if raise_exceptions: | |
2896 | raise |
|
2896 | raise | |
2897 | if not exit_ignore: |
|
2897 | if not exit_ignore: | |
2898 | self.showtraceback(exception_only=True) |
|
2898 | self.showtraceback(exception_only=True) | |
2899 | except: |
|
2899 | except: | |
2900 | if raise_exceptions: |
|
2900 | if raise_exceptions: | |
2901 | raise |
|
2901 | raise | |
2902 | # tb offset is 2 because we wrap execfile |
|
2902 | # tb offset is 2 because we wrap execfile | |
2903 | self.showtraceback(tb_offset=2) |
|
2903 | self.showtraceback(tb_offset=2) | |
2904 |
|
2904 | |||
2905 | def safe_execfile_ipy(self, fname, shell_futures=False, raise_exceptions=False): |
|
2905 | def safe_execfile_ipy(self, fname, shell_futures=False, raise_exceptions=False): | |
2906 | """Like safe_execfile, but for .ipy or .ipynb files with IPython syntax. |
|
2906 | """Like safe_execfile, but for .ipy or .ipynb files with IPython syntax. | |
2907 |
|
2907 | |||
2908 | Parameters |
|
2908 | Parameters | |
2909 | ---------- |
|
2909 | ---------- | |
2910 | fname : str |
|
2910 | fname : str | |
2911 | The name of the file to execute. The filename must have a |
|
2911 | The name of the file to execute. The filename must have a | |
2912 | .ipy or .ipynb extension. |
|
2912 | .ipy or .ipynb extension. | |
2913 | shell_futures : bool (False) |
|
2913 | shell_futures : bool (False) | |
2914 | If True, the code will share future statements with the interactive |
|
2914 | If True, the code will share future statements with the interactive | |
2915 | shell. It will both be affected by previous __future__ imports, and |
|
2915 | shell. It will both be affected by previous __future__ imports, and | |
2916 | any __future__ imports in the code will affect the shell. If False, |
|
2916 | any __future__ imports in the code will affect the shell. If False, | |
2917 | __future__ imports are not shared in either direction. |
|
2917 | __future__ imports are not shared in either direction. | |
2918 | raise_exceptions : bool (False) |
|
2918 | raise_exceptions : bool (False) | |
2919 | If True raise exceptions everywhere. Meant for testing. |
|
2919 | If True raise exceptions everywhere. Meant for testing. | |
2920 | """ |
|
2920 | """ | |
2921 | fname = Path(fname).expanduser().resolve() |
|
2921 | fname = Path(fname).expanduser().resolve() | |
2922 |
|
2922 | |||
2923 | # Make sure we can open the file |
|
2923 | # Make sure we can open the file | |
2924 | try: |
|
2924 | try: | |
2925 | with fname.open("rb"): |
|
2925 | with fname.open("rb"): | |
2926 | pass |
|
2926 | pass | |
2927 | except: |
|
2927 | except: | |
2928 | warn('Could not open file <%s> for safe execution.' % fname) |
|
2928 | warn('Could not open file <%s> for safe execution.' % fname) | |
2929 | return |
|
2929 | return | |
2930 |
|
2930 | |||
2931 | # Find things also in current directory. This is needed to mimic the |
|
2931 | # Find things also in current directory. This is needed to mimic the | |
2932 | # behavior of running a script from the system command line, where |
|
2932 | # behavior of running a script from the system command line, where | |
2933 | # Python inserts the script's directory into sys.path |
|
2933 | # Python inserts the script's directory into sys.path | |
2934 | dname = str(fname.parent) |
|
2934 | dname = str(fname.parent) | |
2935 |
|
2935 | |||
2936 | def get_cells(): |
|
2936 | def get_cells(): | |
2937 | """generator for sequence of code blocks to run""" |
|
2937 | """generator for sequence of code blocks to run""" | |
2938 | if fname.suffix == ".ipynb": |
|
2938 | if fname.suffix == ".ipynb": | |
2939 | from nbformat import read |
|
2939 | from nbformat import read | |
2940 | nb = read(fname, as_version=4) |
|
2940 | nb = read(fname, as_version=4) | |
2941 | if not nb.cells: |
|
2941 | if not nb.cells: | |
2942 | return |
|
2942 | return | |
2943 | for cell in nb.cells: |
|
2943 | for cell in nb.cells: | |
2944 | if cell.cell_type == 'code': |
|
2944 | if cell.cell_type == 'code': | |
2945 | yield cell.source |
|
2945 | yield cell.source | |
2946 | else: |
|
2946 | else: | |
2947 | yield fname.read_text(encoding="utf-8") |
|
2947 | yield fname.read_text(encoding="utf-8") | |
2948 |
|
2948 | |||
2949 | with prepended_to_syspath(dname): |
|
2949 | with prepended_to_syspath(dname): | |
2950 | try: |
|
2950 | try: | |
2951 | for cell in get_cells(): |
|
2951 | for cell in get_cells(): | |
2952 | result = self.run_cell(cell, silent=True, shell_futures=shell_futures) |
|
2952 | result = self.run_cell(cell, silent=True, shell_futures=shell_futures) | |
2953 | if raise_exceptions: |
|
2953 | if raise_exceptions: | |
2954 | result.raise_error() |
|
2954 | result.raise_error() | |
2955 | elif not result.success: |
|
2955 | elif not result.success: | |
2956 | break |
|
2956 | break | |
2957 | except: |
|
2957 | except: | |
2958 | if raise_exceptions: |
|
2958 | if raise_exceptions: | |
2959 | raise |
|
2959 | raise | |
2960 | self.showtraceback() |
|
2960 | self.showtraceback() | |
2961 | warn('Unknown failure executing file: <%s>' % fname) |
|
2961 | warn('Unknown failure executing file: <%s>' % fname) | |
2962 |
|
2962 | |||
2963 | def safe_run_module(self, mod_name, where): |
|
2963 | def safe_run_module(self, mod_name, where): | |
2964 | """A safe version of runpy.run_module(). |
|
2964 | """A safe version of runpy.run_module(). | |
2965 |
|
2965 | |||
2966 | This version will never throw an exception, but instead print |
|
2966 | This version will never throw an exception, but instead print | |
2967 | helpful error messages to the screen. |
|
2967 | helpful error messages to the screen. | |
2968 |
|
2968 | |||
2969 | `SystemExit` exceptions with status code 0 or None are ignored. |
|
2969 | `SystemExit` exceptions with status code 0 or None are ignored. | |
2970 |
|
2970 | |||
2971 | Parameters |
|
2971 | Parameters | |
2972 | ---------- |
|
2972 | ---------- | |
2973 | mod_name : string |
|
2973 | mod_name : string | |
2974 | The name of the module to be executed. |
|
2974 | The name of the module to be executed. | |
2975 | where : dict |
|
2975 | where : dict | |
2976 | The globals namespace. |
|
2976 | The globals namespace. | |
2977 | """ |
|
2977 | """ | |
2978 | try: |
|
2978 | try: | |
2979 | try: |
|
2979 | try: | |
2980 | where.update( |
|
2980 | where.update( | |
2981 | runpy.run_module(str(mod_name), run_name="__main__", |
|
2981 | runpy.run_module(str(mod_name), run_name="__main__", | |
2982 | alter_sys=True) |
|
2982 | alter_sys=True) | |
2983 | ) |
|
2983 | ) | |
2984 | except SystemExit as status: |
|
2984 | except SystemExit as status: | |
2985 | if status.code: |
|
2985 | if status.code: | |
2986 | raise |
|
2986 | raise | |
2987 | except: |
|
2987 | except: | |
2988 | self.showtraceback() |
|
2988 | self.showtraceback() | |
2989 | warn('Unknown failure executing module: <%s>' % mod_name) |
|
2989 | warn('Unknown failure executing module: <%s>' % mod_name) | |
2990 |
|
2990 | |||
2991 | def run_cell( |
|
2991 | def run_cell( | |
2992 | self, |
|
2992 | self, | |
2993 | raw_cell, |
|
2993 | raw_cell, | |
2994 | store_history=False, |
|
2994 | store_history=False, | |
2995 | silent=False, |
|
2995 | silent=False, | |
2996 | shell_futures=True, |
|
2996 | shell_futures=True, | |
2997 | cell_id=None, |
|
2997 | cell_id=None, | |
2998 | ): |
|
2998 | ): | |
2999 | """Run a complete IPython cell. |
|
2999 | """Run a complete IPython cell. | |
3000 |
|
3000 | |||
3001 | Parameters |
|
3001 | Parameters | |
3002 | ---------- |
|
3002 | ---------- | |
3003 | raw_cell : str |
|
3003 | raw_cell : str | |
3004 | The code (including IPython code such as %magic functions) to run. |
|
3004 | The code (including IPython code such as %magic functions) to run. | |
3005 | store_history : bool |
|
3005 | store_history : bool | |
3006 | If True, the raw and translated cell will be stored in IPython's |
|
3006 | If True, the raw and translated cell will be stored in IPython's | |
3007 | history. For user code calling back into IPython's machinery, this |
|
3007 | history. For user code calling back into IPython's machinery, this | |
3008 | should be set to False. |
|
3008 | should be set to False. | |
3009 | silent : bool |
|
3009 | silent : bool | |
3010 | If True, avoid side-effects, such as implicit displayhooks and |
|
3010 | If True, avoid side-effects, such as implicit displayhooks and | |
3011 | and logging. silent=True forces store_history=False. |
|
3011 | and logging. silent=True forces store_history=False. | |
3012 | shell_futures : bool |
|
3012 | shell_futures : bool | |
3013 | If True, the code will share future statements with the interactive |
|
3013 | If True, the code will share future statements with the interactive | |
3014 | shell. It will both be affected by previous __future__ imports, and |
|
3014 | shell. It will both be affected by previous __future__ imports, and | |
3015 | any __future__ imports in the code will affect the shell. If False, |
|
3015 | any __future__ imports in the code will affect the shell. If False, | |
3016 | __future__ imports are not shared in either direction. |
|
3016 | __future__ imports are not shared in either direction. | |
3017 |
|
3017 | |||
3018 | Returns |
|
3018 | Returns | |
3019 | ------- |
|
3019 | ------- | |
3020 | result : :class:`ExecutionResult` |
|
3020 | result : :class:`ExecutionResult` | |
3021 | """ |
|
3021 | """ | |
3022 | result = None |
|
3022 | result = None | |
3023 | try: |
|
3023 | try: | |
3024 | result = self._run_cell( |
|
3024 | result = self._run_cell( | |
3025 | raw_cell, store_history, silent, shell_futures, cell_id |
|
3025 | raw_cell, store_history, silent, shell_futures, cell_id | |
3026 | ) |
|
3026 | ) | |
3027 | finally: |
|
3027 | finally: | |
3028 | self.events.trigger('post_execute') |
|
3028 | self.events.trigger('post_execute') | |
3029 | if not silent: |
|
3029 | if not silent: | |
3030 | self.events.trigger('post_run_cell', result) |
|
3030 | self.events.trigger('post_run_cell', result) | |
3031 | return result |
|
3031 | return result | |
3032 |
|
3032 | |||
3033 | def _run_cell( |
|
3033 | def _run_cell( | |
3034 | self, |
|
3034 | self, | |
3035 | raw_cell: str, |
|
3035 | raw_cell: str, | |
3036 | store_history: bool, |
|
3036 | store_history: bool, | |
3037 | silent: bool, |
|
3037 | silent: bool, | |
3038 | shell_futures: bool, |
|
3038 | shell_futures: bool, | |
3039 | cell_id: str, |
|
3039 | cell_id: str, | |
3040 | ) -> ExecutionResult: |
|
3040 | ) -> ExecutionResult: | |
3041 | """Internal method to run a complete IPython cell.""" |
|
3041 | """Internal method to run a complete IPython cell.""" | |
3042 |
|
3042 | |||
3043 | # we need to avoid calling self.transform_cell multiple time on the same thing |
|
3043 | # we need to avoid calling self.transform_cell multiple time on the same thing | |
3044 | # so we need to store some results: |
|
3044 | # so we need to store some results: | |
3045 | preprocessing_exc_tuple = None |
|
3045 | preprocessing_exc_tuple = None | |
3046 | try: |
|
3046 | try: | |
3047 | transformed_cell = self.transform_cell(raw_cell) |
|
3047 | transformed_cell = self.transform_cell(raw_cell) | |
3048 | except Exception: |
|
3048 | except Exception: | |
3049 | transformed_cell = raw_cell |
|
3049 | transformed_cell = raw_cell | |
3050 | preprocessing_exc_tuple = sys.exc_info() |
|
3050 | preprocessing_exc_tuple = sys.exc_info() | |
3051 |
|
3051 | |||
3052 | assert transformed_cell is not None |
|
3052 | assert transformed_cell is not None | |
3053 | coro = self.run_cell_async( |
|
3053 | coro = self.run_cell_async( | |
3054 | raw_cell, |
|
3054 | raw_cell, | |
3055 | store_history=store_history, |
|
3055 | store_history=store_history, | |
3056 | silent=silent, |
|
3056 | silent=silent, | |
3057 | shell_futures=shell_futures, |
|
3057 | shell_futures=shell_futures, | |
3058 | transformed_cell=transformed_cell, |
|
3058 | transformed_cell=transformed_cell, | |
3059 | preprocessing_exc_tuple=preprocessing_exc_tuple, |
|
3059 | preprocessing_exc_tuple=preprocessing_exc_tuple, | |
3060 | cell_id=cell_id, |
|
3060 | cell_id=cell_id, | |
3061 | ) |
|
3061 | ) | |
3062 |
|
3062 | |||
3063 | # run_cell_async is async, but may not actually need an eventloop. |
|
3063 | # run_cell_async is async, but may not actually need an eventloop. | |
3064 | # when this is the case, we want to run it using the pseudo_sync_runner |
|
3064 | # when this is the case, we want to run it using the pseudo_sync_runner | |
3065 | # so that code can invoke eventloops (for example via the %run , and |
|
3065 | # so that code can invoke eventloops (for example via the %run , and | |
3066 | # `%paste` magic. |
|
3066 | # `%paste` magic. | |
3067 | if self.trio_runner: |
|
3067 | if self.trio_runner: | |
3068 | runner = self.trio_runner |
|
3068 | runner = self.trio_runner | |
3069 | elif self.should_run_async( |
|
3069 | elif self.should_run_async( | |
3070 | raw_cell, |
|
3070 | raw_cell, | |
3071 | transformed_cell=transformed_cell, |
|
3071 | transformed_cell=transformed_cell, | |
3072 | preprocessing_exc_tuple=preprocessing_exc_tuple, |
|
3072 | preprocessing_exc_tuple=preprocessing_exc_tuple, | |
3073 | ): |
|
3073 | ): | |
3074 | runner = self.loop_runner |
|
3074 | runner = self.loop_runner | |
3075 | else: |
|
3075 | else: | |
3076 | runner = _pseudo_sync_runner |
|
3076 | runner = _pseudo_sync_runner | |
3077 |
|
3077 | |||
3078 | try: |
|
3078 | try: | |
3079 | result = runner(coro) |
|
3079 | result = runner(coro) | |
3080 | except BaseException as e: |
|
3080 | except BaseException as e: | |
3081 | info = ExecutionInfo( |
|
3081 | info = ExecutionInfo( | |
3082 | raw_cell, store_history, silent, shell_futures, cell_id |
|
3082 | raw_cell, store_history, silent, shell_futures, cell_id | |
3083 | ) |
|
3083 | ) | |
3084 | result = ExecutionResult(info) |
|
3084 | result = ExecutionResult(info) | |
3085 | result.error_in_exec = e |
|
3085 | result.error_in_exec = e | |
3086 | self.showtraceback(running_compiled_code=True) |
|
3086 | self.showtraceback(running_compiled_code=True) | |
3087 | finally: |
|
3087 | finally: | |
3088 | return result |
|
3088 | return result | |
3089 |
|
3089 | |||
3090 | def should_run_async( |
|
3090 | def should_run_async( | |
3091 | self, raw_cell: str, *, transformed_cell=None, preprocessing_exc_tuple=None |
|
3091 | self, raw_cell: str, *, transformed_cell=None, preprocessing_exc_tuple=None | |
3092 | ) -> bool: |
|
3092 | ) -> bool: | |
3093 | """Return whether a cell should be run asynchronously via a coroutine runner |
|
3093 | """Return whether a cell should be run asynchronously via a coroutine runner | |
3094 |
|
3094 | |||
3095 | Parameters |
|
3095 | Parameters | |
3096 | ---------- |
|
3096 | ---------- | |
3097 | raw_cell : str |
|
3097 | raw_cell : str | |
3098 | The code to be executed |
|
3098 | The code to be executed | |
3099 |
|
3099 | |||
3100 | Returns |
|
3100 | Returns | |
3101 | ------- |
|
3101 | ------- | |
3102 | result: bool |
|
3102 | result: bool | |
3103 | Whether the code needs to be run with a coroutine runner or not |
|
3103 | Whether the code needs to be run with a coroutine runner or not | |
3104 | .. versionadded:: 7.0 |
|
3104 | .. versionadded:: 7.0 | |
3105 | """ |
|
3105 | """ | |
3106 | if not self.autoawait: |
|
3106 | if not self.autoawait: | |
3107 | return False |
|
3107 | return False | |
3108 | if preprocessing_exc_tuple is not None: |
|
3108 | if preprocessing_exc_tuple is not None: | |
3109 | return False |
|
3109 | return False | |
3110 | assert preprocessing_exc_tuple is None |
|
3110 | assert preprocessing_exc_tuple is None | |
3111 | if transformed_cell is None: |
|
3111 | if transformed_cell is None: | |
3112 | warnings.warn( |
|
3112 | warnings.warn( | |
3113 | "`should_run_async` will not call `transform_cell`" |
|
3113 | "`should_run_async` will not call `transform_cell`" | |
3114 | " automatically in the future. Please pass the result to" |
|
3114 | " automatically in the future. Please pass the result to" | |
3115 | " `transformed_cell` argument and any exception that happen" |
|
3115 | " `transformed_cell` argument and any exception that happen" | |
3116 | " during the" |
|
3116 | " during the" | |
3117 | "transform in `preprocessing_exc_tuple` in" |
|
3117 | "transform in `preprocessing_exc_tuple` in" | |
3118 | " IPython 7.17 and above.", |
|
3118 | " IPython 7.17 and above.", | |
3119 | DeprecationWarning, |
|
3119 | DeprecationWarning, | |
3120 | stacklevel=2, |
|
3120 | stacklevel=2, | |
3121 | ) |
|
3121 | ) | |
3122 | try: |
|
3122 | try: | |
3123 | cell = self.transform_cell(raw_cell) |
|
3123 | cell = self.transform_cell(raw_cell) | |
3124 | except Exception: |
|
3124 | except Exception: | |
3125 | # any exception during transform will be raised |
|
3125 | # any exception during transform will be raised | |
3126 | # prior to execution |
|
3126 | # prior to execution | |
3127 | return False |
|
3127 | return False | |
3128 | else: |
|
3128 | else: | |
3129 | cell = transformed_cell |
|
3129 | cell = transformed_cell | |
3130 | return _should_be_async(cell) |
|
3130 | return _should_be_async(cell) | |
3131 |
|
3131 | |||
3132 | async def run_cell_async( |
|
3132 | async def run_cell_async( | |
3133 | self, |
|
3133 | self, | |
3134 | raw_cell: str, |
|
3134 | raw_cell: str, | |
3135 | store_history=False, |
|
3135 | store_history=False, | |
3136 | silent=False, |
|
3136 | silent=False, | |
3137 | shell_futures=True, |
|
3137 | shell_futures=True, | |
3138 | *, |
|
3138 | *, | |
3139 | transformed_cell: Optional[str] = None, |
|
3139 | transformed_cell: Optional[str] = None, | |
3140 | preprocessing_exc_tuple: Optional[AnyType] = None, |
|
3140 | preprocessing_exc_tuple: Optional[AnyType] = None, | |
3141 | cell_id=None, |
|
3141 | cell_id=None, | |
3142 | ) -> ExecutionResult: |
|
3142 | ) -> ExecutionResult: | |
3143 | """Run a complete IPython cell asynchronously. |
|
3143 | """Run a complete IPython cell asynchronously. | |
3144 |
|
3144 | |||
3145 | Parameters |
|
3145 | Parameters | |
3146 | ---------- |
|
3146 | ---------- | |
3147 | raw_cell : str |
|
3147 | raw_cell : str | |
3148 | The code (including IPython code such as %magic functions) to run. |
|
3148 | The code (including IPython code such as %magic functions) to run. | |
3149 | store_history : bool |
|
3149 | store_history : bool | |
3150 | If True, the raw and translated cell will be stored in IPython's |
|
3150 | If True, the raw and translated cell will be stored in IPython's | |
3151 | history. For user code calling back into IPython's machinery, this |
|
3151 | history. For user code calling back into IPython's machinery, this | |
3152 | should be set to False. |
|
3152 | should be set to False. | |
3153 | silent : bool |
|
3153 | silent : bool | |
3154 | If True, avoid side-effects, such as implicit displayhooks and |
|
3154 | If True, avoid side-effects, such as implicit displayhooks and | |
3155 | and logging. silent=True forces store_history=False. |
|
3155 | and logging. silent=True forces store_history=False. | |
3156 | shell_futures : bool |
|
3156 | shell_futures : bool | |
3157 | If True, the code will share future statements with the interactive |
|
3157 | If True, the code will share future statements with the interactive | |
3158 | shell. It will both be affected by previous __future__ imports, and |
|
3158 | shell. It will both be affected by previous __future__ imports, and | |
3159 | any __future__ imports in the code will affect the shell. If False, |
|
3159 | any __future__ imports in the code will affect the shell. If False, | |
3160 | __future__ imports are not shared in either direction. |
|
3160 | __future__ imports are not shared in either direction. | |
3161 | transformed_cell: str |
|
3161 | transformed_cell: str | |
3162 | cell that was passed through transformers |
|
3162 | cell that was passed through transformers | |
3163 | preprocessing_exc_tuple: |
|
3163 | preprocessing_exc_tuple: | |
3164 | trace if the transformation failed. |
|
3164 | trace if the transformation failed. | |
3165 |
|
3165 | |||
3166 | Returns |
|
3166 | Returns | |
3167 | ------- |
|
3167 | ------- | |
3168 | result : :class:`ExecutionResult` |
|
3168 | result : :class:`ExecutionResult` | |
3169 |
|
3169 | |||
3170 | .. versionadded:: 7.0 |
|
3170 | .. versionadded:: 7.0 | |
3171 | """ |
|
3171 | """ | |
3172 | info = ExecutionInfo(raw_cell, store_history, silent, shell_futures, cell_id) |
|
3172 | info = ExecutionInfo(raw_cell, store_history, silent, shell_futures, cell_id) | |
3173 | result = ExecutionResult(info) |
|
3173 | result = ExecutionResult(info) | |
3174 |
|
3174 | |||
3175 | if (not raw_cell) or raw_cell.isspace(): |
|
3175 | if (not raw_cell) or raw_cell.isspace(): | |
3176 | self.last_execution_succeeded = True |
|
3176 | self.last_execution_succeeded = True | |
3177 | self.last_execution_result = result |
|
3177 | self.last_execution_result = result | |
3178 | return result |
|
3178 | return result | |
3179 |
|
3179 | |||
3180 | if silent: |
|
3180 | if silent: | |
3181 | store_history = False |
|
3181 | store_history = False | |
3182 |
|
3182 | |||
3183 | if store_history: |
|
3183 | if store_history: | |
3184 | result.execution_count = self.execution_count |
|
3184 | result.execution_count = self.execution_count | |
3185 |
|
3185 | |||
3186 | def error_before_exec(value): |
|
3186 | def error_before_exec(value): | |
3187 | if store_history: |
|
3187 | if store_history: | |
3188 | self.execution_count += 1 |
|
3188 | self.execution_count += 1 | |
3189 | result.error_before_exec = value |
|
3189 | result.error_before_exec = value | |
3190 | self.last_execution_succeeded = False |
|
3190 | self.last_execution_succeeded = False | |
3191 | self.last_execution_result = result |
|
3191 | self.last_execution_result = result | |
3192 | return result |
|
3192 | return result | |
3193 |
|
3193 | |||
3194 | self.events.trigger('pre_execute') |
|
3194 | self.events.trigger('pre_execute') | |
3195 | if not silent: |
|
3195 | if not silent: | |
3196 | self.events.trigger('pre_run_cell', info) |
|
3196 | self.events.trigger('pre_run_cell', info) | |
3197 |
|
3197 | |||
3198 | if transformed_cell is None: |
|
3198 | if transformed_cell is None: | |
3199 | warnings.warn( |
|
3199 | warnings.warn( | |
3200 | "`run_cell_async` will not call `transform_cell`" |
|
3200 | "`run_cell_async` will not call `transform_cell`" | |
3201 | " automatically in the future. Please pass the result to" |
|
3201 | " automatically in the future. Please pass the result to" | |
3202 | " `transformed_cell` argument and any exception that happen" |
|
3202 | " `transformed_cell` argument and any exception that happen" | |
3203 | " during the" |
|
3203 | " during the" | |
3204 | "transform in `preprocessing_exc_tuple` in" |
|
3204 | "transform in `preprocessing_exc_tuple` in" | |
3205 | " IPython 7.17 and above.", |
|
3205 | " IPython 7.17 and above.", | |
3206 | DeprecationWarning, |
|
3206 | DeprecationWarning, | |
3207 | stacklevel=2, |
|
3207 | stacklevel=2, | |
3208 | ) |
|
3208 | ) | |
3209 | # If any of our input transformation (input_transformer_manager or |
|
3209 | # If any of our input transformation (input_transformer_manager or | |
3210 | # prefilter_manager) raises an exception, we store it in this variable |
|
3210 | # prefilter_manager) raises an exception, we store it in this variable | |
3211 | # so that we can display the error after logging the input and storing |
|
3211 | # so that we can display the error after logging the input and storing | |
3212 | # it in the history. |
|
3212 | # it in the history. | |
3213 | try: |
|
3213 | try: | |
3214 | cell = self.transform_cell(raw_cell) |
|
3214 | cell = self.transform_cell(raw_cell) | |
3215 | except Exception: |
|
3215 | except Exception: | |
3216 | preprocessing_exc_tuple = sys.exc_info() |
|
3216 | preprocessing_exc_tuple = sys.exc_info() | |
3217 | cell = raw_cell # cell has to exist so it can be stored/logged |
|
3217 | cell = raw_cell # cell has to exist so it can be stored/logged | |
3218 | else: |
|
3218 | else: | |
3219 | preprocessing_exc_tuple = None |
|
3219 | preprocessing_exc_tuple = None | |
3220 | else: |
|
3220 | else: | |
3221 | if preprocessing_exc_tuple is None: |
|
3221 | if preprocessing_exc_tuple is None: | |
3222 | cell = transformed_cell |
|
3222 | cell = transformed_cell | |
3223 | else: |
|
3223 | else: | |
3224 | cell = raw_cell |
|
3224 | cell = raw_cell | |
3225 |
|
3225 | |||
3226 | # Do NOT store paste/cpaste magic history |
|
3226 | # Do NOT store paste/cpaste magic history | |
3227 | if "get_ipython().run_line_magic(" in cell and "paste" in cell: |
|
3227 | if "get_ipython().run_line_magic(" in cell and "paste" in cell: | |
3228 | store_history = False |
|
3228 | store_history = False | |
3229 |
|
3229 | |||
3230 | # Store raw and processed history |
|
3230 | # Store raw and processed history | |
3231 | if store_history: |
|
3231 | if store_history: | |
3232 | self.history_manager.store_inputs(self.execution_count, cell, raw_cell) |
|
3232 | self.history_manager.store_inputs(self.execution_count, cell, raw_cell) | |
3233 | if not silent: |
|
3233 | if not silent: | |
3234 | self.logger.log(cell, raw_cell) |
|
3234 | self.logger.log(cell, raw_cell) | |
3235 |
|
3235 | |||
3236 | # Display the exception if input processing failed. |
|
3236 | # Display the exception if input processing failed. | |
3237 | if preprocessing_exc_tuple is not None: |
|
3237 | if preprocessing_exc_tuple is not None: | |
3238 | self.showtraceback(preprocessing_exc_tuple) |
|
3238 | self.showtraceback(preprocessing_exc_tuple) | |
3239 | if store_history: |
|
3239 | if store_history: | |
3240 | self.execution_count += 1 |
|
3240 | self.execution_count += 1 | |
3241 | return error_before_exec(preprocessing_exc_tuple[1]) |
|
3241 | return error_before_exec(preprocessing_exc_tuple[1]) | |
3242 |
|
3242 | |||
3243 | # Our own compiler remembers the __future__ environment. If we want to |
|
3243 | # Our own compiler remembers the __future__ environment. If we want to | |
3244 | # run code with a separate __future__ environment, use the default |
|
3244 | # run code with a separate __future__ environment, use the default | |
3245 | # compiler |
|
3245 | # compiler | |
3246 | compiler = self.compile if shell_futures else self.compiler_class() |
|
3246 | compiler = self.compile if shell_futures else self.compiler_class() | |
3247 |
|
3247 | |||
3248 | _run_async = False |
|
3248 | _run_async = False | |
3249 |
|
3249 | |||
3250 | with self.builtin_trap: |
|
3250 | with self.builtin_trap: | |
3251 | cell_name = compiler.cache(cell, self.execution_count, raw_code=raw_cell) |
|
3251 | cell_name = compiler.cache(cell, self.execution_count, raw_code=raw_cell) | |
3252 |
|
3252 | |||
3253 | with self.display_trap: |
|
3253 | with self.display_trap: | |
3254 | # Compile to bytecode |
|
3254 | # Compile to bytecode | |
3255 | try: |
|
3255 | try: | |
3256 | code_ast = compiler.ast_parse(cell, filename=cell_name) |
|
3256 | code_ast = compiler.ast_parse(cell, filename=cell_name) | |
3257 | except self.custom_exceptions as e: |
|
3257 | except self.custom_exceptions as e: | |
3258 | etype, value, tb = sys.exc_info() |
|
3258 | etype, value, tb = sys.exc_info() | |
3259 | self.CustomTB(etype, value, tb) |
|
3259 | self.CustomTB(etype, value, tb) | |
3260 | return error_before_exec(e) |
|
3260 | return error_before_exec(e) | |
3261 | except IndentationError as e: |
|
3261 | except IndentationError as e: | |
3262 | self.showindentationerror() |
|
3262 | self.showindentationerror() | |
3263 | return error_before_exec(e) |
|
3263 | return error_before_exec(e) | |
3264 | except (OverflowError, SyntaxError, ValueError, TypeError, |
|
3264 | except (OverflowError, SyntaxError, ValueError, TypeError, | |
3265 | MemoryError) as e: |
|
3265 | MemoryError) as e: | |
3266 | self.showsyntaxerror() |
|
3266 | self.showsyntaxerror() | |
3267 | return error_before_exec(e) |
|
3267 | return error_before_exec(e) | |
3268 |
|
3268 | |||
3269 | # Apply AST transformations |
|
3269 | # Apply AST transformations | |
3270 | try: |
|
3270 | try: | |
3271 | code_ast = self.transform_ast(code_ast) |
|
3271 | code_ast = self.transform_ast(code_ast) | |
3272 | except InputRejected as e: |
|
3272 | except InputRejected as e: | |
3273 | self.showtraceback() |
|
3273 | self.showtraceback() | |
3274 | return error_before_exec(e) |
|
3274 | return error_before_exec(e) | |
3275 |
|
3275 | |||
3276 | # Give the displayhook a reference to our ExecutionResult so it |
|
3276 | # Give the displayhook a reference to our ExecutionResult so it | |
3277 | # can fill in the output value. |
|
3277 | # can fill in the output value. | |
3278 | self.displayhook.exec_result = result |
|
3278 | self.displayhook.exec_result = result | |
3279 |
|
3279 | |||
3280 | # Execute the user code |
|
3280 | # Execute the user code | |
3281 | interactivity = "none" if silent else self.ast_node_interactivity |
|
3281 | interactivity = "none" if silent else self.ast_node_interactivity | |
3282 |
|
3282 | |||
3283 |
|
3283 | |||
3284 | has_raised = await self.run_ast_nodes(code_ast.body, cell_name, |
|
3284 | has_raised = await self.run_ast_nodes(code_ast.body, cell_name, | |
3285 | interactivity=interactivity, compiler=compiler, result=result) |
|
3285 | interactivity=interactivity, compiler=compiler, result=result) | |
3286 |
|
3286 | |||
3287 | self.last_execution_succeeded = not has_raised |
|
3287 | self.last_execution_succeeded = not has_raised | |
3288 | self.last_execution_result = result |
|
3288 | self.last_execution_result = result | |
3289 |
|
3289 | |||
3290 | # Reset this so later displayed values do not modify the |
|
3290 | # Reset this so later displayed values do not modify the | |
3291 | # ExecutionResult |
|
3291 | # ExecutionResult | |
3292 | self.displayhook.exec_result = None |
|
3292 | self.displayhook.exec_result = None | |
3293 |
|
3293 | |||
3294 | if store_history: |
|
3294 | if store_history: | |
3295 | # Write output to the database. Does nothing unless |
|
3295 | # Write output to the database. Does nothing unless | |
3296 | # history output logging is enabled. |
|
3296 | # history output logging is enabled. | |
3297 | self.history_manager.store_output(self.execution_count) |
|
3297 | self.history_manager.store_output(self.execution_count) | |
3298 | # Each cell is a *single* input, regardless of how many lines it has |
|
3298 | # Each cell is a *single* input, regardless of how many lines it has | |
3299 | self.execution_count += 1 |
|
3299 | self.execution_count += 1 | |
3300 |
|
3300 | |||
3301 | return result |
|
3301 | return result | |
3302 |
|
3302 | |||
3303 | def transform_cell(self, raw_cell): |
|
3303 | def transform_cell(self, raw_cell): | |
3304 | """Transform an input cell before parsing it. |
|
3304 | """Transform an input cell before parsing it. | |
3305 |
|
3305 | |||
3306 | Static transformations, implemented in IPython.core.inputtransformer2, |
|
3306 | Static transformations, implemented in IPython.core.inputtransformer2, | |
3307 | deal with things like ``%magic`` and ``!system`` commands. |
|
3307 | deal with things like ``%magic`` and ``!system`` commands. | |
3308 | These run on all input. |
|
3308 | These run on all input. | |
3309 | Dynamic transformations, for things like unescaped magics and the exit |
|
3309 | Dynamic transformations, for things like unescaped magics and the exit | |
3310 | autocall, depend on the state of the interpreter. |
|
3310 | autocall, depend on the state of the interpreter. | |
3311 | These only apply to single line inputs. |
|
3311 | These only apply to single line inputs. | |
3312 |
|
3312 | |||
3313 | These string-based transformations are followed by AST transformations; |
|
3313 | These string-based transformations are followed by AST transformations; | |
3314 | see :meth:`transform_ast`. |
|
3314 | see :meth:`transform_ast`. | |
3315 | """ |
|
3315 | """ | |
3316 | # Static input transformations |
|
3316 | # Static input transformations | |
3317 | cell = self.input_transformer_manager.transform_cell(raw_cell) |
|
3317 | cell = self.input_transformer_manager.transform_cell(raw_cell) | |
3318 |
|
3318 | |||
3319 | if len(cell.splitlines()) == 1: |
|
3319 | if len(cell.splitlines()) == 1: | |
3320 | # Dynamic transformations - only applied for single line commands |
|
3320 | # Dynamic transformations - only applied for single line commands | |
3321 | with self.builtin_trap: |
|
3321 | with self.builtin_trap: | |
3322 | # use prefilter_lines to handle trailing newlines |
|
3322 | # use prefilter_lines to handle trailing newlines | |
3323 | # restore trailing newline for ast.parse |
|
3323 | # restore trailing newline for ast.parse | |
3324 | cell = self.prefilter_manager.prefilter_lines(cell) + '\n' |
|
3324 | cell = self.prefilter_manager.prefilter_lines(cell) + '\n' | |
3325 |
|
3325 | |||
3326 | lines = cell.splitlines(keepends=True) |
|
3326 | lines = cell.splitlines(keepends=True) | |
3327 | for transform in self.input_transformers_post: |
|
3327 | for transform in self.input_transformers_post: | |
3328 | lines = transform(lines) |
|
3328 | lines = transform(lines) | |
3329 | cell = ''.join(lines) |
|
3329 | cell = ''.join(lines) | |
3330 |
|
3330 | |||
3331 | return cell |
|
3331 | return cell | |
3332 |
|
3332 | |||
3333 | def transform_ast(self, node): |
|
3333 | def transform_ast(self, node): | |
3334 | """Apply the AST transformations from self.ast_transformers |
|
3334 | """Apply the AST transformations from self.ast_transformers | |
3335 |
|
3335 | |||
3336 | Parameters |
|
3336 | Parameters | |
3337 | ---------- |
|
3337 | ---------- | |
3338 | node : ast.Node |
|
3338 | node : ast.Node | |
3339 | The root node to be transformed. Typically called with the ast.Module |
|
3339 | The root node to be transformed. Typically called with the ast.Module | |
3340 | produced by parsing user input. |
|
3340 | produced by parsing user input. | |
3341 |
|
3341 | |||
3342 | Returns |
|
3342 | Returns | |
3343 | ------- |
|
3343 | ------- | |
3344 | An ast.Node corresponding to the node it was called with. Note that it |
|
3344 | An ast.Node corresponding to the node it was called with. Note that it | |
3345 | may also modify the passed object, so don't rely on references to the |
|
3345 | may also modify the passed object, so don't rely on references to the | |
3346 | original AST. |
|
3346 | original AST. | |
3347 | """ |
|
3347 | """ | |
3348 | for transformer in self.ast_transformers: |
|
3348 | for transformer in self.ast_transformers: | |
3349 | try: |
|
3349 | try: | |
3350 | node = transformer.visit(node) |
|
3350 | node = transformer.visit(node) | |
3351 | except InputRejected: |
|
3351 | except InputRejected: | |
3352 | # User-supplied AST transformers can reject an input by raising |
|
3352 | # User-supplied AST transformers can reject an input by raising | |
3353 | # an InputRejected. Short-circuit in this case so that we |
|
3353 | # an InputRejected. Short-circuit in this case so that we | |
3354 | # don't unregister the transform. |
|
3354 | # don't unregister the transform. | |
3355 | raise |
|
3355 | raise | |
3356 | except Exception as e: |
|
3356 | except Exception as e: | |
3357 | warn( |
|
3357 | warn( | |
3358 | "AST transformer %r threw an error. It will be unregistered. %s" |
|
3358 | "AST transformer %r threw an error. It will be unregistered. %s" | |
3359 | % (transformer, e) |
|
3359 | % (transformer, e) | |
3360 | ) |
|
3360 | ) | |
3361 | self.ast_transformers.remove(transformer) |
|
3361 | self.ast_transformers.remove(transformer) | |
3362 |
|
3362 | |||
3363 | if self.ast_transformers: |
|
3363 | if self.ast_transformers: | |
3364 | ast.fix_missing_locations(node) |
|
3364 | ast.fix_missing_locations(node) | |
3365 | return node |
|
3365 | return node | |
3366 |
|
3366 | |||
3367 | async def run_ast_nodes( |
|
3367 | async def run_ast_nodes( | |
3368 | self, |
|
3368 | self, | |
3369 | nodelist: ListType[stmt], |
|
3369 | nodelist: ListType[stmt], | |
3370 | cell_name: str, |
|
3370 | cell_name: str, | |
3371 | interactivity="last_expr", |
|
3371 | interactivity="last_expr", | |
3372 | compiler=compile, |
|
3372 | compiler=compile, | |
3373 | result=None, |
|
3373 | result=None, | |
3374 | ): |
|
3374 | ): | |
3375 | """Run a sequence of AST nodes. The execution mode depends on the |
|
3375 | """Run a sequence of AST nodes. The execution mode depends on the | |
3376 | interactivity parameter. |
|
3376 | interactivity parameter. | |
3377 |
|
3377 | |||
3378 | Parameters |
|
3378 | Parameters | |
3379 | ---------- |
|
3379 | ---------- | |
3380 | nodelist : list |
|
3380 | nodelist : list | |
3381 | A sequence of AST nodes to run. |
|
3381 | A sequence of AST nodes to run. | |
3382 | cell_name : str |
|
3382 | cell_name : str | |
3383 | Will be passed to the compiler as the filename of the cell. Typically |
|
3383 | Will be passed to the compiler as the filename of the cell. Typically | |
3384 | the value returned by ip.compile.cache(cell). |
|
3384 | the value returned by ip.compile.cache(cell). | |
3385 | interactivity : str |
|
3385 | interactivity : str | |
3386 | 'all', 'last', 'last_expr' , 'last_expr_or_assign' or 'none', |
|
3386 | 'all', 'last', 'last_expr' , 'last_expr_or_assign' or 'none', | |
3387 | specifying which nodes should be run interactively (displaying output |
|
3387 | specifying which nodes should be run interactively (displaying output | |
3388 | from expressions). 'last_expr' will run the last node interactively |
|
3388 | from expressions). 'last_expr' will run the last node interactively | |
3389 | only if it is an expression (i.e. expressions in loops or other blocks |
|
3389 | only if it is an expression (i.e. expressions in loops or other blocks | |
3390 | are not displayed) 'last_expr_or_assign' will run the last expression |
|
3390 | are not displayed) 'last_expr_or_assign' will run the last expression | |
3391 | or the last assignment. Other values for this parameter will raise a |
|
3391 | or the last assignment. Other values for this parameter will raise a | |
3392 | ValueError. |
|
3392 | ValueError. | |
3393 |
|
3393 | |||
3394 | compiler : callable |
|
3394 | compiler : callable | |
3395 | A function with the same interface as the built-in compile(), to turn |
|
3395 | A function with the same interface as the built-in compile(), to turn | |
3396 | the AST nodes into code objects. Default is the built-in compile(). |
|
3396 | the AST nodes into code objects. Default is the built-in compile(). | |
3397 | result : ExecutionResult, optional |
|
3397 | result : ExecutionResult, optional | |
3398 | An object to store exceptions that occur during execution. |
|
3398 | An object to store exceptions that occur during execution. | |
3399 |
|
3399 | |||
3400 | Returns |
|
3400 | Returns | |
3401 | ------- |
|
3401 | ------- | |
3402 | True if an exception occurred while running code, False if it finished |
|
3402 | True if an exception occurred while running code, False if it finished | |
3403 | running. |
|
3403 | running. | |
3404 | """ |
|
3404 | """ | |
3405 | if not nodelist: |
|
3405 | if not nodelist: | |
3406 | return |
|
3406 | return | |
3407 |
|
3407 | |||
3408 |
|
3408 | |||
3409 | if interactivity == 'last_expr_or_assign': |
|
3409 | if interactivity == 'last_expr_or_assign': | |
3410 | if isinstance(nodelist[-1], _assign_nodes): |
|
3410 | if isinstance(nodelist[-1], _assign_nodes): | |
3411 | asg = nodelist[-1] |
|
3411 | asg = nodelist[-1] | |
3412 | if isinstance(asg, ast.Assign) and len(asg.targets) == 1: |
|
3412 | if isinstance(asg, ast.Assign) and len(asg.targets) == 1: | |
3413 | target = asg.targets[0] |
|
3413 | target = asg.targets[0] | |
3414 | elif isinstance(asg, _single_targets_nodes): |
|
3414 | elif isinstance(asg, _single_targets_nodes): | |
3415 | target = asg.target |
|
3415 | target = asg.target | |
3416 | else: |
|
3416 | else: | |
3417 | target = None |
|
3417 | target = None | |
3418 | if isinstance(target, ast.Name): |
|
3418 | if isinstance(target, ast.Name): | |
3419 | nnode = ast.Expr(ast.Name(target.id, ast.Load())) |
|
3419 | nnode = ast.Expr(ast.Name(target.id, ast.Load())) | |
3420 | ast.fix_missing_locations(nnode) |
|
3420 | ast.fix_missing_locations(nnode) | |
3421 | nodelist.append(nnode) |
|
3421 | nodelist.append(nnode) | |
3422 | interactivity = 'last_expr' |
|
3422 | interactivity = 'last_expr' | |
3423 |
|
3423 | |||
3424 | _async = False |
|
3424 | _async = False | |
3425 | if interactivity == 'last_expr': |
|
3425 | if interactivity == 'last_expr': | |
3426 | if isinstance(nodelist[-1], ast.Expr): |
|
3426 | if isinstance(nodelist[-1], ast.Expr): | |
3427 | interactivity = "last" |
|
3427 | interactivity = "last" | |
3428 | else: |
|
3428 | else: | |
3429 | interactivity = "none" |
|
3429 | interactivity = "none" | |
3430 |
|
3430 | |||
3431 | if interactivity == 'none': |
|
3431 | if interactivity == 'none': | |
3432 | to_run_exec, to_run_interactive = nodelist, [] |
|
3432 | to_run_exec, to_run_interactive = nodelist, [] | |
3433 | elif interactivity == 'last': |
|
3433 | elif interactivity == 'last': | |
3434 | to_run_exec, to_run_interactive = nodelist[:-1], nodelist[-1:] |
|
3434 | to_run_exec, to_run_interactive = nodelist[:-1], nodelist[-1:] | |
3435 | elif interactivity == 'all': |
|
3435 | elif interactivity == 'all': | |
3436 | to_run_exec, to_run_interactive = [], nodelist |
|
3436 | to_run_exec, to_run_interactive = [], nodelist | |
3437 | else: |
|
3437 | else: | |
3438 | raise ValueError("Interactivity was %r" % interactivity) |
|
3438 | raise ValueError("Interactivity was %r" % interactivity) | |
3439 |
|
3439 | |||
3440 | try: |
|
3440 | try: | |
3441 |
|
3441 | |||
3442 | def compare(code): |
|
3442 | def compare(code): | |
3443 | is_async = inspect.CO_COROUTINE & code.co_flags == inspect.CO_COROUTINE |
|
3443 | is_async = inspect.CO_COROUTINE & code.co_flags == inspect.CO_COROUTINE | |
3444 | return is_async |
|
3444 | return is_async | |
3445 |
|
3445 | |||
3446 | # refactor that to just change the mod constructor. |
|
3446 | # refactor that to just change the mod constructor. | |
3447 | to_run = [] |
|
3447 | to_run = [] | |
3448 | for node in to_run_exec: |
|
3448 | for node in to_run_exec: | |
3449 | to_run.append((node, "exec")) |
|
3449 | to_run.append((node, "exec")) | |
3450 |
|
3450 | |||
3451 | for node in to_run_interactive: |
|
3451 | for node in to_run_interactive: | |
3452 | to_run.append((node, "single")) |
|
3452 | to_run.append((node, "single")) | |
3453 |
|
3453 | |||
3454 | for node, mode in to_run: |
|
3454 | for node, mode in to_run: | |
3455 | if mode == "exec": |
|
3455 | if mode == "exec": | |
3456 | mod = Module([node], []) |
|
3456 | mod = Module([node], []) | |
3457 | elif mode == "single": |
|
3457 | elif mode == "single": | |
3458 | mod = ast.Interactive([node]) # type: ignore |
|
3458 | mod = ast.Interactive([node]) # type: ignore | |
3459 | with compiler.extra_flags( |
|
3459 | with compiler.extra_flags( | |
3460 | getattr(ast, "PyCF_ALLOW_TOP_LEVEL_AWAIT", 0x0) |
|
3460 | getattr(ast, "PyCF_ALLOW_TOP_LEVEL_AWAIT", 0x0) | |
3461 | if self.autoawait |
|
3461 | if self.autoawait | |
3462 | else 0x0 |
|
3462 | else 0x0 | |
3463 | ): |
|
3463 | ): | |
3464 | code = compiler(mod, cell_name, mode) |
|
3464 | code = compiler(mod, cell_name, mode) | |
3465 | asy = compare(code) |
|
3465 | asy = compare(code) | |
3466 | if await self.run_code(code, result, async_=asy): |
|
3466 | if await self.run_code(code, result, async_=asy): | |
3467 | return True |
|
3467 | return True | |
3468 |
|
3468 | |||
3469 | # Flush softspace |
|
3469 | # Flush softspace | |
3470 | if softspace(sys.stdout, 0): |
|
3470 | if softspace(sys.stdout, 0): | |
3471 | print() |
|
3471 | print() | |
3472 |
|
3472 | |||
3473 | except: |
|
3473 | except: | |
3474 | # It's possible to have exceptions raised here, typically by |
|
3474 | # It's possible to have exceptions raised here, typically by | |
3475 | # compilation of odd code (such as a naked 'return' outside a |
|
3475 | # compilation of odd code (such as a naked 'return' outside a | |
3476 | # function) that did parse but isn't valid. Typically the exception |
|
3476 | # function) that did parse but isn't valid. Typically the exception | |
3477 | # is a SyntaxError, but it's safest just to catch anything and show |
|
3477 | # is a SyntaxError, but it's safest just to catch anything and show | |
3478 | # the user a traceback. |
|
3478 | # the user a traceback. | |
3479 |
|
3479 | |||
3480 | # We do only one try/except outside the loop to minimize the impact |
|
3480 | # We do only one try/except outside the loop to minimize the impact | |
3481 | # on runtime, and also because if any node in the node list is |
|
3481 | # on runtime, and also because if any node in the node list is | |
3482 | # broken, we should stop execution completely. |
|
3482 | # broken, we should stop execution completely. | |
3483 | if result: |
|
3483 | if result: | |
3484 | result.error_before_exec = sys.exc_info()[1] |
|
3484 | result.error_before_exec = sys.exc_info()[1] | |
3485 | self.showtraceback() |
|
3485 | self.showtraceback() | |
3486 | return True |
|
3486 | return True | |
3487 |
|
3487 | |||
3488 | return False |
|
3488 | return False | |
3489 |
|
3489 | |||
3490 | async def run_code(self, code_obj, result=None, *, async_=False): |
|
3490 | async def run_code(self, code_obj, result=None, *, async_=False): | |
3491 | """Execute a code object. |
|
3491 | """Execute a code object. | |
3492 |
|
3492 | |||
3493 | When an exception occurs, self.showtraceback() is called to display a |
|
3493 | When an exception occurs, self.showtraceback() is called to display a | |
3494 | traceback. |
|
3494 | traceback. | |
3495 |
|
3495 | |||
3496 | Parameters |
|
3496 | Parameters | |
3497 | ---------- |
|
3497 | ---------- | |
3498 | code_obj : code object |
|
3498 | code_obj : code object | |
3499 | A compiled code object, to be executed |
|
3499 | A compiled code object, to be executed | |
3500 | result : ExecutionResult, optional |
|
3500 | result : ExecutionResult, optional | |
3501 | An object to store exceptions that occur during execution. |
|
3501 | An object to store exceptions that occur during execution. | |
3502 | async_ : Bool (Experimental) |
|
3502 | async_ : Bool (Experimental) | |
3503 | Attempt to run top-level asynchronous code in a default loop. |
|
3503 | Attempt to run top-level asynchronous code in a default loop. | |
3504 |
|
3504 | |||
3505 | Returns |
|
3505 | Returns | |
3506 | ------- |
|
3506 | ------- | |
3507 | False : successful execution. |
|
3507 | False : successful execution. | |
3508 | True : an error occurred. |
|
3508 | True : an error occurred. | |
3509 | """ |
|
3509 | """ | |
3510 | # special value to say that anything above is IPython and should be |
|
3510 | # special value to say that anything above is IPython and should be | |
3511 | # hidden. |
|
3511 | # hidden. | |
3512 | __tracebackhide__ = "__ipython_bottom__" |
|
3512 | __tracebackhide__ = "__ipython_bottom__" | |
3513 | # Set our own excepthook in case the user code tries to call it |
|
3513 | # Set our own excepthook in case the user code tries to call it | |
3514 | # directly, so that the IPython crash handler doesn't get triggered |
|
3514 | # directly, so that the IPython crash handler doesn't get triggered | |
3515 | old_excepthook, sys.excepthook = sys.excepthook, self.excepthook |
|
3515 | old_excepthook, sys.excepthook = sys.excepthook, self.excepthook | |
3516 |
|
3516 | |||
3517 | # we save the original sys.excepthook in the instance, in case config |
|
3517 | # we save the original sys.excepthook in the instance, in case config | |
3518 | # code (such as magics) needs access to it. |
|
3518 | # code (such as magics) needs access to it. | |
3519 | self.sys_excepthook = old_excepthook |
|
3519 | self.sys_excepthook = old_excepthook | |
3520 | outflag = True # happens in more places, so it's easier as default |
|
3520 | outflag = True # happens in more places, so it's easier as default | |
3521 | try: |
|
3521 | try: | |
3522 | try: |
|
3522 | try: | |
3523 | if async_: |
|
3523 | if async_: | |
3524 | await eval(code_obj, self.user_global_ns, self.user_ns) |
|
3524 | await eval(code_obj, self.user_global_ns, self.user_ns) | |
3525 | else: |
|
3525 | else: | |
3526 | exec(code_obj, self.user_global_ns, self.user_ns) |
|
3526 | exec(code_obj, self.user_global_ns, self.user_ns) | |
3527 | finally: |
|
3527 | finally: | |
3528 | # Reset our crash handler in place |
|
3528 | # Reset our crash handler in place | |
3529 | sys.excepthook = old_excepthook |
|
3529 | sys.excepthook = old_excepthook | |
3530 | except SystemExit as e: |
|
3530 | except SystemExit as e: | |
3531 | if result is not None: |
|
3531 | if result is not None: | |
3532 | result.error_in_exec = e |
|
3532 | result.error_in_exec = e | |
3533 | self.showtraceback(exception_only=True) |
|
3533 | self.showtraceback(exception_only=True) | |
3534 | warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1) |
|
3534 | warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1) | |
3535 | except bdb.BdbQuit: |
|
3535 | except bdb.BdbQuit: | |
3536 | etype, value, tb = sys.exc_info() |
|
3536 | etype, value, tb = sys.exc_info() | |
3537 | if result is not None: |
|
3537 | if result is not None: | |
3538 | result.error_in_exec = value |
|
3538 | result.error_in_exec = value | |
3539 | # the BdbQuit stops here |
|
3539 | # the BdbQuit stops here | |
3540 | except self.custom_exceptions: |
|
3540 | except self.custom_exceptions: | |
3541 | etype, value, tb = sys.exc_info() |
|
3541 | etype, value, tb = sys.exc_info() | |
3542 | if result is not None: |
|
3542 | if result is not None: | |
3543 | result.error_in_exec = value |
|
3543 | result.error_in_exec = value | |
3544 | self.CustomTB(etype, value, tb) |
|
3544 | self.CustomTB(etype, value, tb) | |
3545 | except: |
|
3545 | except: | |
3546 | if result is not None: |
|
3546 | if result is not None: | |
3547 | result.error_in_exec = sys.exc_info()[1] |
|
3547 | result.error_in_exec = sys.exc_info()[1] | |
3548 | self.showtraceback(running_compiled_code=True) |
|
3548 | self.showtraceback(running_compiled_code=True) | |
3549 | else: |
|
3549 | else: | |
3550 | outflag = False |
|
3550 | outflag = False | |
3551 | return outflag |
|
3551 | return outflag | |
3552 |
|
3552 | |||
3553 | # For backwards compatibility |
|
3553 | # For backwards compatibility | |
3554 | runcode = run_code |
|
3554 | runcode = run_code | |
3555 |
|
3555 | |||
3556 | def check_complete(self, code: str) -> Tuple[str, str]: |
|
3556 | def check_complete(self, code: str) -> Tuple[str, str]: | |
3557 | """Return whether a block of code is ready to execute, or should be continued |
|
3557 | """Return whether a block of code is ready to execute, or should be continued | |
3558 |
|
3558 | |||
3559 | Parameters |
|
3559 | Parameters | |
3560 | ---------- |
|
3560 | ---------- | |
3561 | code : string |
|
3561 | code : string | |
3562 | Python input code, which can be multiline. |
|
3562 | Python input code, which can be multiline. | |
3563 |
|
3563 | |||
3564 | Returns |
|
3564 | Returns | |
3565 | ------- |
|
3565 | ------- | |
3566 | status : str |
|
3566 | status : str | |
3567 | One of 'complete', 'incomplete', or 'invalid' if source is not a |
|
3567 | One of 'complete', 'incomplete', or 'invalid' if source is not a | |
3568 | prefix of valid code. |
|
3568 | prefix of valid code. | |
3569 | indent : str |
|
3569 | indent : str | |
3570 | When status is 'incomplete', this is some whitespace to insert on |
|
3570 | When status is 'incomplete', this is some whitespace to insert on | |
3571 | the next line of the prompt. |
|
3571 | the next line of the prompt. | |
3572 | """ |
|
3572 | """ | |
3573 | status, nspaces = self.input_transformer_manager.check_complete(code) |
|
3573 | status, nspaces = self.input_transformer_manager.check_complete(code) | |
3574 | return status, ' ' * (nspaces or 0) |
|
3574 | return status, ' ' * (nspaces or 0) | |
3575 |
|
3575 | |||
3576 | #------------------------------------------------------------------------- |
|
3576 | #------------------------------------------------------------------------- | |
3577 | # Things related to GUI support and pylab |
|
3577 | # Things related to GUI support and pylab | |
3578 | #------------------------------------------------------------------------- |
|
3578 | #------------------------------------------------------------------------- | |
3579 |
|
3579 | |||
3580 | active_eventloop = None |
|
3580 | active_eventloop = None | |
3581 |
|
3581 | |||
3582 | def enable_gui(self, gui=None): |
|
3582 | def enable_gui(self, gui=None): | |
3583 | raise NotImplementedError('Implement enable_gui in a subclass') |
|
3583 | raise NotImplementedError('Implement enable_gui in a subclass') | |
3584 |
|
3584 | |||
3585 | def enable_matplotlib(self, gui=None): |
|
3585 | def enable_matplotlib(self, gui=None): | |
3586 | """Enable interactive matplotlib and inline figure support. |
|
3586 | """Enable interactive matplotlib and inline figure support. | |
3587 |
|
3587 | |||
3588 | This takes the following steps: |
|
3588 | This takes the following steps: | |
3589 |
|
3589 | |||
3590 | 1. select the appropriate eventloop and matplotlib backend |
|
3590 | 1. select the appropriate eventloop and matplotlib backend | |
3591 | 2. set up matplotlib for interactive use with that backend |
|
3591 | 2. set up matplotlib for interactive use with that backend | |
3592 | 3. configure formatters for inline figure display |
|
3592 | 3. configure formatters for inline figure display | |
3593 | 4. enable the selected gui eventloop |
|
3593 | 4. enable the selected gui eventloop | |
3594 |
|
3594 | |||
3595 | Parameters |
|
3595 | Parameters | |
3596 | ---------- |
|
3596 | ---------- | |
3597 | gui : optional, string |
|
3597 | gui : optional, string | |
3598 | If given, dictates the choice of matplotlib GUI backend to use |
|
3598 | If given, dictates the choice of matplotlib GUI backend to use | |
3599 | (should be one of IPython's supported backends, 'qt', 'osx', 'tk', |
|
3599 | (should be one of IPython's supported backends, 'qt', 'osx', 'tk', | |
3600 | 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by |
|
3600 | 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by | |
3601 | matplotlib (as dictated by the matplotlib build-time options plus the |
|
3601 | matplotlib (as dictated by the matplotlib build-time options plus the | |
3602 | user's matplotlibrc configuration file). Note that not all backends |
|
3602 | user's matplotlibrc configuration file). Note that not all backends | |
3603 | make sense in all contexts, for example a terminal ipython can't |
|
3603 | make sense in all contexts, for example a terminal ipython can't | |
3604 | display figures inline. |
|
3604 | display figures inline. | |
3605 | """ |
|
3605 | """ | |
3606 | from matplotlib_inline.backend_inline import configure_inline_support |
|
3606 | from matplotlib_inline.backend_inline import configure_inline_support | |
3607 |
|
3607 | |||
3608 | from IPython.core import pylabtools as pt |
|
3608 | from IPython.core import pylabtools as pt | |
3609 | gui, backend = pt.find_gui_and_backend(gui, self.pylab_gui_select) |
|
3609 | gui, backend = pt.find_gui_and_backend(gui, self.pylab_gui_select) | |
3610 |
|
3610 | |||
3611 | if gui != 'inline': |
|
3611 | if gui != 'inline': | |
3612 | # If we have our first gui selection, store it |
|
3612 | # If we have our first gui selection, store it | |
3613 | if self.pylab_gui_select is None: |
|
3613 | if self.pylab_gui_select is None: | |
3614 | self.pylab_gui_select = gui |
|
3614 | self.pylab_gui_select = gui | |
3615 | # Otherwise if they are different |
|
3615 | # Otherwise if they are different | |
3616 | elif gui != self.pylab_gui_select: |
|
3616 | elif gui != self.pylab_gui_select: | |
3617 | print('Warning: Cannot change to a different GUI toolkit: %s.' |
|
3617 | print('Warning: Cannot change to a different GUI toolkit: %s.' | |
3618 | ' Using %s instead.' % (gui, self.pylab_gui_select)) |
|
3618 | ' Using %s instead.' % (gui, self.pylab_gui_select)) | |
3619 | gui, backend = pt.find_gui_and_backend(self.pylab_gui_select) |
|
3619 | gui, backend = pt.find_gui_and_backend(self.pylab_gui_select) | |
3620 |
|
3620 | |||
3621 | pt.activate_matplotlib(backend) |
|
3621 | pt.activate_matplotlib(backend) | |
3622 | configure_inline_support(self, backend) |
|
3622 | configure_inline_support(self, backend) | |
3623 |
|
3623 | |||
3624 | # Now we must activate the gui pylab wants to use, and fix %run to take |
|
3624 | # Now we must activate the gui pylab wants to use, and fix %run to take | |
3625 | # plot updates into account |
|
3625 | # plot updates into account | |
3626 | self.enable_gui(gui) |
|
3626 | self.enable_gui(gui) | |
3627 | self.magics_manager.registry['ExecutionMagics'].default_runner = \ |
|
3627 | self.magics_manager.registry['ExecutionMagics'].default_runner = \ | |
3628 | pt.mpl_runner(self.safe_execfile) |
|
3628 | pt.mpl_runner(self.safe_execfile) | |
3629 |
|
3629 | |||
3630 | return gui, backend |
|
3630 | return gui, backend | |
3631 |
|
3631 | |||
3632 | def enable_pylab(self, gui=None, import_all=True, welcome_message=False): |
|
3632 | def enable_pylab(self, gui=None, import_all=True, welcome_message=False): | |
3633 | """Activate pylab support at runtime. |
|
3633 | """Activate pylab support at runtime. | |
3634 |
|
3634 | |||
3635 | This turns on support for matplotlib, preloads into the interactive |
|
3635 | This turns on support for matplotlib, preloads into the interactive | |
3636 | namespace all of numpy and pylab, and configures IPython to correctly |
|
3636 | namespace all of numpy and pylab, and configures IPython to correctly | |
3637 | interact with the GUI event loop. The GUI backend to be used can be |
|
3637 | interact with the GUI event loop. The GUI backend to be used can be | |
3638 | optionally selected with the optional ``gui`` argument. |
|
3638 | optionally selected with the optional ``gui`` argument. | |
3639 |
|
3639 | |||
3640 | This method only adds preloading the namespace to InteractiveShell.enable_matplotlib. |
|
3640 | This method only adds preloading the namespace to InteractiveShell.enable_matplotlib. | |
3641 |
|
3641 | |||
3642 | Parameters |
|
3642 | Parameters | |
3643 | ---------- |
|
3643 | ---------- | |
3644 | gui : optional, string |
|
3644 | gui : optional, string | |
3645 | If given, dictates the choice of matplotlib GUI backend to use |
|
3645 | If given, dictates the choice of matplotlib GUI backend to use | |
3646 | (should be one of IPython's supported backends, 'qt', 'osx', 'tk', |
|
3646 | (should be one of IPython's supported backends, 'qt', 'osx', 'tk', | |
3647 | 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by |
|
3647 | 'gtk', 'wx' or 'inline'), otherwise we use the default chosen by | |
3648 | matplotlib (as dictated by the matplotlib build-time options plus the |
|
3648 | matplotlib (as dictated by the matplotlib build-time options plus the | |
3649 | user's matplotlibrc configuration file). Note that not all backends |
|
3649 | user's matplotlibrc configuration file). Note that not all backends | |
3650 | make sense in all contexts, for example a terminal ipython can't |
|
3650 | make sense in all contexts, for example a terminal ipython can't | |
3651 | display figures inline. |
|
3651 | display figures inline. | |
3652 | import_all : optional, bool, default: True |
|
3652 | import_all : optional, bool, default: True | |
3653 | Whether to do `from numpy import *` and `from pylab import *` |
|
3653 | Whether to do `from numpy import *` and `from pylab import *` | |
3654 | in addition to module imports. |
|
3654 | in addition to module imports. | |
3655 | welcome_message : deprecated |
|
3655 | welcome_message : deprecated | |
3656 | This argument is ignored, no welcome message will be displayed. |
|
3656 | This argument is ignored, no welcome message will be displayed. | |
3657 | """ |
|
3657 | """ | |
3658 | from IPython.core.pylabtools import import_pylab |
|
3658 | from IPython.core.pylabtools import import_pylab | |
3659 |
|
3659 | |||
3660 | gui, backend = self.enable_matplotlib(gui) |
|
3660 | gui, backend = self.enable_matplotlib(gui) | |
3661 |
|
3661 | |||
3662 | # We want to prevent the loading of pylab to pollute the user's |
|
3662 | # We want to prevent the loading of pylab to pollute the user's | |
3663 | # namespace as shown by the %who* magics, so we execute the activation |
|
3663 | # namespace as shown by the %who* magics, so we execute the activation | |
3664 | # code in an empty namespace, and we update *both* user_ns and |
|
3664 | # code in an empty namespace, and we update *both* user_ns and | |
3665 | # user_ns_hidden with this information. |
|
3665 | # user_ns_hidden with this information. | |
3666 | ns = {} |
|
3666 | ns = {} | |
3667 | import_pylab(ns, import_all) |
|
3667 | import_pylab(ns, import_all) | |
3668 | # warn about clobbered names |
|
3668 | # warn about clobbered names | |
3669 | ignored = {"__builtins__"} |
|
3669 | ignored = {"__builtins__"} | |
3670 | both = set(ns).intersection(self.user_ns).difference(ignored) |
|
3670 | both = set(ns).intersection(self.user_ns).difference(ignored) | |
3671 | clobbered = [ name for name in both if self.user_ns[name] is not ns[name] ] |
|
3671 | clobbered = [ name for name in both if self.user_ns[name] is not ns[name] ] | |
3672 | self.user_ns.update(ns) |
|
3672 | self.user_ns.update(ns) | |
3673 | self.user_ns_hidden.update(ns) |
|
3673 | self.user_ns_hidden.update(ns) | |
3674 | return gui, backend, clobbered |
|
3674 | return gui, backend, clobbered | |
3675 |
|
3675 | |||
3676 | #------------------------------------------------------------------------- |
|
3676 | #------------------------------------------------------------------------- | |
3677 | # Utilities |
|
3677 | # Utilities | |
3678 | #------------------------------------------------------------------------- |
|
3678 | #------------------------------------------------------------------------- | |
3679 |
|
3679 | |||
3680 | def var_expand(self, cmd, depth=0, formatter=DollarFormatter()): |
|
3680 | def var_expand(self, cmd, depth=0, formatter=DollarFormatter()): | |
3681 | """Expand python variables in a string. |
|
3681 | """Expand python variables in a string. | |
3682 |
|
3682 | |||
3683 | The depth argument indicates how many frames above the caller should |
|
3683 | The depth argument indicates how many frames above the caller should | |
3684 | be walked to look for the local namespace where to expand variables. |
|
3684 | be walked to look for the local namespace where to expand variables. | |
3685 |
|
3685 | |||
3686 | The global namespace for expansion is always the user's interactive |
|
3686 | The global namespace for expansion is always the user's interactive | |
3687 | namespace. |
|
3687 | namespace. | |
3688 | """ |
|
3688 | """ | |
3689 | ns = self.user_ns.copy() |
|
3689 | ns = self.user_ns.copy() | |
3690 | try: |
|
3690 | try: | |
3691 | frame = sys._getframe(depth+1) |
|
3691 | frame = sys._getframe(depth+1) | |
3692 | except ValueError: |
|
3692 | except ValueError: | |
3693 | # This is thrown if there aren't that many frames on the stack, |
|
3693 | # This is thrown if there aren't that many frames on the stack, | |
3694 | # e.g. if a script called run_line_magic() directly. |
|
3694 | # e.g. if a script called run_line_magic() directly. | |
3695 | pass |
|
3695 | pass | |
3696 | else: |
|
3696 | else: | |
3697 | ns.update(frame.f_locals) |
|
3697 | ns.update(frame.f_locals) | |
3698 |
|
3698 | |||
3699 | try: |
|
3699 | try: | |
3700 | # We have to use .vformat() here, because 'self' is a valid and common |
|
3700 | # We have to use .vformat() here, because 'self' is a valid and common | |
3701 | # name, and expanding **ns for .format() would make it collide with |
|
3701 | # name, and expanding **ns for .format() would make it collide with | |
3702 | # the 'self' argument of the method. |
|
3702 | # the 'self' argument of the method. | |
3703 | cmd = formatter.vformat(cmd, args=[], kwargs=ns) |
|
3703 | cmd = formatter.vformat(cmd, args=[], kwargs=ns) | |
3704 | except Exception: |
|
3704 | except Exception: | |
3705 | # if formatter couldn't format, just let it go untransformed |
|
3705 | # if formatter couldn't format, just let it go untransformed | |
3706 | pass |
|
3706 | pass | |
3707 | return cmd |
|
3707 | return cmd | |
3708 |
|
3708 | |||
3709 | def mktempfile(self, data=None, prefix='ipython_edit_'): |
|
3709 | def mktempfile(self, data=None, prefix='ipython_edit_'): | |
3710 | """Make a new tempfile and return its filename. |
|
3710 | """Make a new tempfile and return its filename. | |
3711 |
|
3711 | |||
3712 | This makes a call to tempfile.mkstemp (created in a tempfile.mkdtemp), |
|
3712 | This makes a call to tempfile.mkstemp (created in a tempfile.mkdtemp), | |
3713 | but it registers the created filename internally so ipython cleans it up |
|
3713 | but it registers the created filename internally so ipython cleans it up | |
3714 | at exit time. |
|
3714 | at exit time. | |
3715 |
|
3715 | |||
3716 | Optional inputs: |
|
3716 | Optional inputs: | |
3717 |
|
3717 | |||
3718 | - data(None): if data is given, it gets written out to the temp file |
|
3718 | - data(None): if data is given, it gets written out to the temp file | |
3719 | immediately, and the file is closed again.""" |
|
3719 | immediately, and the file is closed again.""" | |
3720 |
|
3720 | |||
3721 | dir_path = Path(tempfile.mkdtemp(prefix=prefix)) |
|
3721 | dir_path = Path(tempfile.mkdtemp(prefix=prefix)) | |
3722 | self.tempdirs.append(dir_path) |
|
3722 | self.tempdirs.append(dir_path) | |
3723 |
|
3723 | |||
3724 | handle, filename = tempfile.mkstemp(".py", prefix, dir=str(dir_path)) |
|
3724 | handle, filename = tempfile.mkstemp(".py", prefix, dir=str(dir_path)) | |
3725 | os.close(handle) # On Windows, there can only be one open handle on a file |
|
3725 | os.close(handle) # On Windows, there can only be one open handle on a file | |
3726 |
|
3726 | |||
3727 | file_path = Path(filename) |
|
3727 | file_path = Path(filename) | |
3728 | self.tempfiles.append(file_path) |
|
3728 | self.tempfiles.append(file_path) | |
3729 |
|
3729 | |||
3730 | if data: |
|
3730 | if data: | |
3731 | file_path.write_text(data, encoding="utf-8") |
|
3731 | file_path.write_text(data, encoding="utf-8") | |
3732 | return filename |
|
3732 | return filename | |
3733 |
|
3733 | |||
3734 | def ask_yes_no(self, prompt, default=None, interrupt=None): |
|
3734 | def ask_yes_no(self, prompt, default=None, interrupt=None): | |
3735 | if self.quiet: |
|
3735 | if self.quiet: | |
3736 | return True |
|
3736 | return True | |
3737 | return ask_yes_no(prompt,default,interrupt) |
|
3737 | return ask_yes_no(prompt,default,interrupt) | |
3738 |
|
3738 | |||
3739 | def show_usage(self): |
|
3739 | def show_usage(self): | |
3740 | """Show a usage message""" |
|
3740 | """Show a usage message""" | |
3741 | page.page(IPython.core.usage.interactive_usage) |
|
3741 | page.page(IPython.core.usage.interactive_usage) | |
3742 |
|
3742 | |||
3743 | def extract_input_lines(self, range_str, raw=False): |
|
3743 | def extract_input_lines(self, range_str, raw=False): | |
3744 | """Return as a string a set of input history slices. |
|
3744 | """Return as a string a set of input history slices. | |
3745 |
|
3745 | |||
3746 | Parameters |
|
3746 | Parameters | |
3747 | ---------- |
|
3747 | ---------- | |
3748 | range_str : str |
|
3748 | range_str : str | |
3749 | The set of slices is given as a string, like "~5/6-~4/2 4:8 9", |
|
3749 | The set of slices is given as a string, like "~5/6-~4/2 4:8 9", | |
3750 | since this function is for use by magic functions which get their |
|
3750 | since this function is for use by magic functions which get their | |
3751 | arguments as strings. The number before the / is the session |
|
3751 | arguments as strings. The number before the / is the session | |
3752 | number: ~n goes n back from the current session. |
|
3752 | number: ~n goes n back from the current session. | |
3753 |
|
3753 | |||
3754 | If empty string is given, returns history of current session |
|
3754 | If empty string is given, returns history of current session | |
3755 | without the last input. |
|
3755 | without the last input. | |
3756 |
|
3756 | |||
3757 | raw : bool, optional |
|
3757 | raw : bool, optional | |
3758 | By default, the processed input is used. If this is true, the raw |
|
3758 | By default, the processed input is used. If this is true, the raw | |
3759 | input history is used instead. |
|
3759 | input history is used instead. | |
3760 |
|
3760 | |||
3761 | Notes |
|
3761 | Notes | |
3762 | ----- |
|
3762 | ----- | |
3763 | Slices can be described with two notations: |
|
3763 | Slices can be described with two notations: | |
3764 |
|
3764 | |||
3765 | * ``N:M`` -> standard python form, means including items N...(M-1). |
|
3765 | * ``N:M`` -> standard python form, means including items N...(M-1). | |
3766 | * ``N-M`` -> include items N..M (closed endpoint). |
|
3766 | * ``N-M`` -> include items N..M (closed endpoint). | |
3767 | """ |
|
3767 | """ | |
3768 | lines = self.history_manager.get_range_by_str(range_str, raw=raw) |
|
3768 | lines = self.history_manager.get_range_by_str(range_str, raw=raw) | |
3769 | text = "\n".join(x for _, _, x in lines) |
|
3769 | text = "\n".join(x for _, _, x in lines) | |
3770 |
|
3770 | |||
3771 | # Skip the last line, as it's probably the magic that called this |
|
3771 | # Skip the last line, as it's probably the magic that called this | |
3772 | if not range_str: |
|
3772 | if not range_str: | |
3773 | if "\n" not in text: |
|
3773 | if "\n" not in text: | |
3774 | text = "" |
|
3774 | text = "" | |
3775 | else: |
|
3775 | else: | |
3776 | text = text[: text.rfind("\n")] |
|
3776 | text = text[: text.rfind("\n")] | |
3777 |
|
3777 | |||
3778 | return text |
|
3778 | return text | |
3779 |
|
3779 | |||
3780 | def find_user_code(self, target, raw=True, py_only=False, skip_encoding_cookie=True, search_ns=False): |
|
3780 | def find_user_code(self, target, raw=True, py_only=False, skip_encoding_cookie=True, search_ns=False): | |
3781 | """Get a code string from history, file, url, or a string or macro. |
|
3781 | """Get a code string from history, file, url, or a string or macro. | |
3782 |
|
3782 | |||
3783 | This is mainly used by magic functions. |
|
3783 | This is mainly used by magic functions. | |
3784 |
|
3784 | |||
3785 | Parameters |
|
3785 | Parameters | |
3786 | ---------- |
|
3786 | ---------- | |
3787 | target : str |
|
3787 | target : str | |
3788 | A string specifying code to retrieve. This will be tried respectively |
|
3788 | A string specifying code to retrieve. This will be tried respectively | |
3789 | as: ranges of input history (see %history for syntax), url, |
|
3789 | as: ranges of input history (see %history for syntax), url, | |
3790 | corresponding .py file, filename, or an expression evaluating to a |
|
3790 | corresponding .py file, filename, or an expression evaluating to a | |
3791 | string or Macro in the user namespace. |
|
3791 | string or Macro in the user namespace. | |
3792 |
|
3792 | |||
3793 | If empty string is given, returns complete history of current |
|
3793 | If empty string is given, returns complete history of current | |
3794 | session, without the last line. |
|
3794 | session, without the last line. | |
3795 |
|
3795 | |||
3796 | raw : bool |
|
3796 | raw : bool | |
3797 | If true (default), retrieve raw history. Has no effect on the other |
|
3797 | If true (default), retrieve raw history. Has no effect on the other | |
3798 | retrieval mechanisms. |
|
3798 | retrieval mechanisms. | |
3799 |
|
3799 | |||
3800 | py_only : bool (default False) |
|
3800 | py_only : bool (default False) | |
3801 | Only try to fetch python code, do not try alternative methods to decode file |
|
3801 | Only try to fetch python code, do not try alternative methods to decode file | |
3802 | if unicode fails. |
|
3802 | if unicode fails. | |
3803 |
|
3803 | |||
3804 | Returns |
|
3804 | Returns | |
3805 | ------- |
|
3805 | ------- | |
3806 | A string of code. |
|
3806 | A string of code. | |
3807 | ValueError is raised if nothing is found, and TypeError if it evaluates |
|
3807 | ValueError is raised if nothing is found, and TypeError if it evaluates | |
3808 | to an object of another type. In each case, .args[0] is a printable |
|
3808 | to an object of another type. In each case, .args[0] is a printable | |
3809 | message. |
|
3809 | message. | |
3810 | """ |
|
3810 | """ | |
3811 | code = self.extract_input_lines(target, raw=raw) # Grab history |
|
3811 | code = self.extract_input_lines(target, raw=raw) # Grab history | |
3812 | if code: |
|
3812 | if code: | |
3813 | return code |
|
3813 | return code | |
3814 | try: |
|
3814 | try: | |
3815 | if target.startswith(('http://', 'https://')): |
|
3815 | if target.startswith(('http://', 'https://')): | |
3816 | return openpy.read_py_url(target, skip_encoding_cookie=skip_encoding_cookie) |
|
3816 | return openpy.read_py_url(target, skip_encoding_cookie=skip_encoding_cookie) | |
3817 | except UnicodeDecodeError as e: |
|
3817 | except UnicodeDecodeError as e: | |
3818 | if not py_only : |
|
3818 | if not py_only : | |
3819 | # Deferred import |
|
3819 | # Deferred import | |
3820 | from urllib.request import urlopen |
|
3820 | from urllib.request import urlopen | |
3821 | response = urlopen(target) |
|
3821 | response = urlopen(target) | |
3822 | return response.read().decode('latin1') |
|
3822 | return response.read().decode('latin1') | |
3823 | raise ValueError(("'%s' seem to be unreadable.") % target) from e |
|
3823 | raise ValueError(("'%s' seem to be unreadable.") % target) from e | |
3824 |
|
3824 | |||
3825 | potential_target = [target] |
|
3825 | potential_target = [target] | |
3826 | try : |
|
3826 | try : | |
3827 | potential_target.insert(0,get_py_filename(target)) |
|
3827 | potential_target.insert(0,get_py_filename(target)) | |
3828 | except IOError: |
|
3828 | except IOError: | |
3829 | pass |
|
3829 | pass | |
3830 |
|
3830 | |||
3831 | for tgt in potential_target : |
|
3831 | for tgt in potential_target : | |
3832 | if os.path.isfile(tgt): # Read file |
|
3832 | if os.path.isfile(tgt): # Read file | |
3833 | try : |
|
3833 | try : | |
3834 | return openpy.read_py_file(tgt, skip_encoding_cookie=skip_encoding_cookie) |
|
3834 | return openpy.read_py_file(tgt, skip_encoding_cookie=skip_encoding_cookie) | |
3835 | except UnicodeDecodeError as e: |
|
3835 | except UnicodeDecodeError as e: | |
3836 | if not py_only : |
|
3836 | if not py_only : | |
3837 | with io_open(tgt,'r', encoding='latin1') as f : |
|
3837 | with io_open(tgt,'r', encoding='latin1') as f : | |
3838 | return f.read() |
|
3838 | return f.read() | |
3839 | raise ValueError(("'%s' seem to be unreadable.") % target) from e |
|
3839 | raise ValueError(("'%s' seem to be unreadable.") % target) from e | |
3840 | elif os.path.isdir(os.path.expanduser(tgt)): |
|
3840 | elif os.path.isdir(os.path.expanduser(tgt)): | |
3841 | raise ValueError("'%s' is a directory, not a regular file." % target) |
|
3841 | raise ValueError("'%s' is a directory, not a regular file." % target) | |
3842 |
|
3842 | |||
3843 | if search_ns: |
|
3843 | if search_ns: | |
3844 | # Inspect namespace to load object source |
|
3844 | # Inspect namespace to load object source | |
3845 | object_info = self.object_inspect(target, detail_level=1) |
|
3845 | object_info = self.object_inspect(target, detail_level=1) | |
3846 | if object_info['found'] and object_info['source']: |
|
3846 | if object_info['found'] and object_info['source']: | |
3847 | return object_info['source'] |
|
3847 | return object_info['source'] | |
3848 |
|
3848 | |||
3849 | try: # User namespace |
|
3849 | try: # User namespace | |
3850 | codeobj = eval(target, self.user_ns) |
|
3850 | codeobj = eval(target, self.user_ns) | |
3851 | except Exception as e: |
|
3851 | except Exception as e: | |
3852 | raise ValueError(("'%s' was not found in history, as a file, url, " |
|
3852 | raise ValueError(("'%s' was not found in history, as a file, url, " | |
3853 | "nor in the user namespace.") % target) from e |
|
3853 | "nor in the user namespace.") % target) from e | |
3854 |
|
3854 | |||
3855 | if isinstance(codeobj, str): |
|
3855 | if isinstance(codeobj, str): | |
3856 | return codeobj |
|
3856 | return codeobj | |
3857 | elif isinstance(codeobj, Macro): |
|
3857 | elif isinstance(codeobj, Macro): | |
3858 | return codeobj.value |
|
3858 | return codeobj.value | |
3859 |
|
3859 | |||
3860 | raise TypeError("%s is neither a string nor a macro." % target, |
|
3860 | raise TypeError("%s is neither a string nor a macro." % target, | |
3861 | codeobj) |
|
3861 | codeobj) | |
3862 |
|
3862 | |||
3863 | def _atexit_once(self): |
|
3863 | def _atexit_once(self): | |
3864 | """ |
|
3864 | """ | |
3865 | At exist operation that need to be called at most once. |
|
3865 | At exist operation that need to be called at most once. | |
3866 | Second call to this function per instance will do nothing. |
|
3866 | Second call to this function per instance will do nothing. | |
3867 | """ |
|
3867 | """ | |
3868 |
|
3868 | |||
3869 | if not getattr(self, "_atexit_once_called", False): |
|
3869 | if not getattr(self, "_atexit_once_called", False): | |
3870 | self._atexit_once_called = True |
|
3870 | self._atexit_once_called = True | |
3871 | # Clear all user namespaces to release all references cleanly. |
|
3871 | # Clear all user namespaces to release all references cleanly. | |
3872 | self.reset(new_session=False) |
|
3872 | self.reset(new_session=False) | |
3873 | # Close the history session (this stores the end time and line count) |
|
3873 | # Close the history session (this stores the end time and line count) | |
3874 | # this must be *before* the tempfile cleanup, in case of temporary |
|
3874 | # this must be *before* the tempfile cleanup, in case of temporary | |
3875 | # history db |
|
3875 | # history db | |
3876 | self.history_manager.end_session() |
|
3876 | self.history_manager.end_session() | |
3877 | self.history_manager = None |
|
3877 | self.history_manager = None | |
3878 |
|
3878 | |||
3879 | #------------------------------------------------------------------------- |
|
3879 | #------------------------------------------------------------------------- | |
3880 | # Things related to IPython exiting |
|
3880 | # Things related to IPython exiting | |
3881 | #------------------------------------------------------------------------- |
|
3881 | #------------------------------------------------------------------------- | |
3882 | def atexit_operations(self): |
|
3882 | def atexit_operations(self): | |
3883 | """This will be executed at the time of exit. |
|
3883 | """This will be executed at the time of exit. | |
3884 |
|
3884 | |||
3885 | Cleanup operations and saving of persistent data that is done |
|
3885 | Cleanup operations and saving of persistent data that is done | |
3886 | unconditionally by IPython should be performed here. |
|
3886 | unconditionally by IPython should be performed here. | |
3887 |
|
3887 | |||
3888 | For things that may depend on startup flags or platform specifics (such |
|
3888 | For things that may depend on startup flags or platform specifics (such | |
3889 | as having readline or not), register a separate atexit function in the |
|
3889 | as having readline or not), register a separate atexit function in the | |
3890 | code that has the appropriate information, rather than trying to |
|
3890 | code that has the appropriate information, rather than trying to | |
3891 | clutter |
|
3891 | clutter | |
3892 | """ |
|
3892 | """ | |
3893 | self._atexit_once() |
|
3893 | self._atexit_once() | |
3894 |
|
3894 | |||
3895 | # Cleanup all tempfiles and folders left around |
|
3895 | # Cleanup all tempfiles and folders left around | |
3896 | for tfile in self.tempfiles: |
|
3896 | for tfile in self.tempfiles: | |
3897 | try: |
|
3897 | try: | |
3898 | tfile.unlink() |
|
3898 | tfile.unlink() | |
3899 | self.tempfiles.remove(tfile) |
|
3899 | self.tempfiles.remove(tfile) | |
3900 | except FileNotFoundError: |
|
3900 | except FileNotFoundError: | |
3901 | pass |
|
3901 | pass | |
3902 | del self.tempfiles |
|
3902 | del self.tempfiles | |
3903 | for tdir in self.tempdirs: |
|
3903 | for tdir in self.tempdirs: | |
3904 | try: |
|
3904 | try: | |
3905 | tdir.rmdir() |
|
3905 | tdir.rmdir() | |
3906 | self.tempdirs.remove(tdir) |
|
3906 | self.tempdirs.remove(tdir) | |
3907 | except FileNotFoundError: |
|
3907 | except FileNotFoundError: | |
3908 | pass |
|
3908 | pass | |
3909 | del self.tempdirs |
|
3909 | del self.tempdirs | |
3910 |
|
3910 | |||
3911 | # Restore user's cursor |
|
3911 | # Restore user's cursor | |
3912 | if hasattr(self, "editing_mode") and self.editing_mode == "vi": |
|
3912 | if hasattr(self, "editing_mode") and self.editing_mode == "vi": | |
3913 | sys.stdout.write("\x1b[0 q") |
|
3913 | sys.stdout.write("\x1b[0 q") | |
3914 | sys.stdout.flush() |
|
3914 | sys.stdout.flush() | |
3915 |
|
3915 | |||
3916 | def cleanup(self): |
|
3916 | def cleanup(self): | |
3917 | self.restore_sys_module_state() |
|
3917 | self.restore_sys_module_state() | |
3918 |
|
3918 | |||
3919 |
|
3919 | |||
3920 | # Overridden in terminal subclass to change prompts |
|
3920 | # Overridden in terminal subclass to change prompts | |
3921 | def switch_doctest_mode(self, mode): |
|
3921 | def switch_doctest_mode(self, mode): | |
3922 | pass |
|
3922 | pass | |
3923 |
|
3923 | |||
3924 |
|
3924 | |||
3925 | class InteractiveShellABC(metaclass=abc.ABCMeta): |
|
3925 | class InteractiveShellABC(metaclass=abc.ABCMeta): | |
3926 | """An abstract base class for InteractiveShell.""" |
|
3926 | """An abstract base class for InteractiveShell.""" | |
3927 |
|
3927 | |||
3928 | InteractiveShellABC.register(InteractiveShell) |
|
3928 | InteractiveShellABC.register(InteractiveShell) |
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