Mercurial > cpython-lru_cache-weakref

annotate Lib/imp.py @ 79691:05c8928362ee

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Merge __next__ method link fixes with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Fri, 12 Oct 2012 13:46:37 +0300
parents 9ba57938f54d
children d5aa922f97f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 """This module provides the components needed to build your own __import__
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2 function. Undocumented functions are obsolete.
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3
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4 In most cases it is preferred you consider using the importlib module's
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5 functionality over this module.
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6
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7 """
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8 # (Probably) need to stay in _imp
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9 from _imp import (lock_held, acquire_lock, release_lock,
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10 load_dynamic, get_frozen_object, is_frozen_package,
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11 init_builtin, init_frozen, is_builtin, is_frozen,
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12 _fix_co_filename)
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13
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14 # Directly exposed by this module
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15 from importlib._bootstrap import new_module
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16 from importlib._bootstrap import cache_from_source, source_from_cache
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17
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18
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19 from importlib import _bootstrap
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20 from importlib import machinery
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21 import os
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22 import sys
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23 import tokenize
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24 import warnings
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25
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26
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27 # DEPRECATED
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28 SEARCH_ERROR = 0
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29 PY_SOURCE = 1
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30 PY_COMPILED = 2
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31 C_EXTENSION = 3
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32 PY_RESOURCE = 4
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33 PKG_DIRECTORY = 5
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34 C_BUILTIN = 6
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35 PY_FROZEN = 7
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36 PY_CODERESOURCE = 8
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37 IMP_HOOK = 9
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38
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39
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40 def get_magic():
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41 """Return the magic number for .pyc or .pyo files."""
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42 return _bootstrap._MAGIC_BYTES
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43
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44
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45 def get_tag():
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46 """Return the magic tag for .pyc or .pyo files."""
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47 return sys.implementation.cache_tag
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48
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49
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50 def get_suffixes():
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51 warnings.warn('imp.get_suffixes() is deprecated; use the constants '
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52 'defined on importlib.machinery instead',
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53 DeprecationWarning, 2)
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54 extensions = [(s, 'rb', C_EXTENSION) for s in machinery.EXTENSION_SUFFIXES]
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55 source = [(s, 'U', PY_SOURCE) for s in machinery.SOURCE_SUFFIXES]
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56 bytecode = [(s, 'rb', PY_COMPILED) for s in machinery.BYTECODE_SUFFIXES]
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57
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58 return extensions + source + bytecode
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59
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60
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61 class NullImporter:
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62
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63 """Null import object."""
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64
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65 def __init__(self, path):
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66 if path == '':
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67 raise ImportError('empty pathname', path='')
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68 elif os.path.isdir(path):
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69 raise ImportError('existing directory', path=path)
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70
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71 def find_module(self, fullname):
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72 """Always returns None."""
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73 return None
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74
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75
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76 class _HackedGetData:
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77
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78 """Compatibiilty support for 'file' arguments of various load_*()
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79 functions."""
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80
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81 def __init__(self, fullname, path, file=None):
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82 super().__init__(fullname, path)
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83 self.file = file
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84
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85 def get_data(self, path):
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86 """Gross hack to contort loader to deal w/ load_*()'s bad API."""
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87 if self.file and path == self.path:
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88 with self.file:
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89 # Technically should be returning bytes, but
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90 # SourceLoader.get_code() just passed what is returned to
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91 # compile() which can handle str. And converting to bytes would
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92 # require figuring out the encoding to decode to and
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93 # tokenize.detect_encoding() only accepts bytes.
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94 return self.file.read()
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95 else:
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96 return super().get_data(path)
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97
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98
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99 class _LoadSourceCompatibility(_HackedGetData, _bootstrap.SourceFileLoader):
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100
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101 """Compatibility support for implementing load_source()."""
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102
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103
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104 def load_source(name, pathname, file=None):
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105 msg = ('imp.load_source() is deprecated; use '
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106 'importlib.machinery.SourceFileLoader(name, pathname).load_module()'
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107 ' instead')
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108 warnings.warn(msg, DeprecationWarning, 2)
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109 return _LoadSourceCompatibility(name, pathname, file).load_module(name)
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110
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111
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112 class _LoadCompiledCompatibility(_HackedGetData,
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113 _bootstrap.SourcelessFileLoader):
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114
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115 """Compatibility support for implementing load_compiled()."""
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116
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117
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118 def load_compiled(name, pathname, file=None):
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119 msg = ('imp.load_compiled() is deprecated; use '
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120 'importlib.machinery.SourcelessFileLoader(name, pathname).'
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121 'load_module() instead ')
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122 warnings.warn(msg, DeprecationWarning, 2)
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123 return _LoadCompiledCompatibility(name, pathname, file).load_module(name)
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parents: 76372
diff changeset
124
66bd85bcf916 Issue #13959: Re-implement imp.load_compiled() in imp.py.
Brett Cannon <brett@python.org>
parents: 76372
diff changeset
125
76342
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
Brett Cannon <brett@python.org>
parents: 76338
diff changeset
126 def load_package(name, path):
76877
626d5c6fbd95 Issue #13959: Have
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diff changeset
127 msg = ('imp.load_package() is deprecated; use either '
626d5c6fbd95 Issue #13959: Have
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diff changeset
128 'importlib.machinery.SourceFileLoader() or '
626d5c6fbd95 Issue #13959: Have
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diff changeset
129 'importlib.machinery.SourcelessFileLoader() instead')
626d5c6fbd95 Issue #13959: Have
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diff changeset
130 warnings.warn(msg, DeprecationWarning, 2)
76342
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
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diff changeset
131 if os.path.isdir(path):
76877
626d5c6fbd95 Issue #13959: Have
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diff changeset
132 extensions = (machinery.SOURCE_SUFFIXES[:] +
626d5c6fbd95 Issue #13959: Have
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diff changeset
133 machinery.BYTECODE_SUFFIXES[:])
76342
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
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diff changeset
134 for extension in extensions:
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
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parents: 76338
diff changeset
135 path = os.path.join(path, '__init__'+extension)
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
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parents: 76338
diff changeset
136 if os.path.exists(path):
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
Brett Cannon <brett@python.org>
parents: 76338
diff changeset
137 break
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
Brett Cannon <brett@python.org>
parents: 76338
diff changeset
138 else:
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
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parents: 76338
diff changeset
139 raise ValueError('{!r} is not a package'.format(path))
76478
1da623513b26 Issue #14605: Expose importlib.abc.FileLoader and
Brett Cannon <brett@python.org>
parents: 76456
diff changeset
140 return _bootstrap.SourceFileLoader(name, path).load_module(name)
76342
4256df44023b Issue #13959: Re-implement imp.load_package() in imp.py.
Brett Cannon <brett@python.org>
parents: 76338
diff changeset
141
76338
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
Brett Cannon <brett@python.org>
parents: 76336
diff changeset
142
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
Brett Cannon <brett@python.org>
parents: 76336
diff changeset
143 def load_module(name, file, filename, details):
77456
034c814eb187 Issue #13959: Add to imp.find_module() and load_module's docstrings
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parents: 76877
diff changeset
144 """**DEPRECATED**
034c814eb187 Issue #13959: Add to imp.find_module() and load_module's docstrings
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diff changeset
145
034c814eb187 Issue #13959: Add to imp.find_module() and load_module's docstrings
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diff changeset
146 Load a module, given information returned by find_module().
76338
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
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parents: 76336
diff changeset
147
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
Brett Cannon <brett@python.org>
parents: 76336
diff changeset
148 The module name must include the full package name, if any.
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
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parents: 76336
diff changeset
149
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
Brett Cannon <brett@python.org>
parents: 76336
diff changeset
150 """
2df37938b8e1 Issue #13959: Re-implement imp.load_module() in imp.py.
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diff changeset
151 suffix, mode, type_ = details
76877
626d5c6fbd95 Issue #13959: Have
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diff changeset
152 with warnings.catch_warnings():
626d5c6fbd95 Issue #13959: Have
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diff changeset
153 warnings.simplefilter('ignore')
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
154 if mode and (not mode.startswith(('r', 'U')) or '+' in mode):
626d5c6fbd95 Issue #13959: Have
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diff changeset
155 raise ValueError('invalid file open mode {!r}'.format(mode))
78816
9ba57938f54d Issue #15828: Restore support for C extension modules in imp.load_module()
Nick Coghlan <ncoghlan@gmail.com>
parents: 78486
diff changeset
156 elif file is None and type_ in {PY_SOURCE, PY_COMPILED, C_EXTENSION}:
76877
626d5c6fbd95 Issue #13959: Have
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diff changeset
157 msg = 'file object required for import (type code {})'.format(type_)
626d5c6fbd95 Issue #13959: Have
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diff changeset
158 raise ValueError(msg)
626d5c6fbd95 Issue #13959: Have
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diff changeset
159 elif type_ == PY_SOURCE:
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
160 return load_source(name, filename, file)
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
161 elif type_ == PY_COMPILED:
626d5c6fbd95 Issue #13959: Have
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diff changeset
162 return load_compiled(name, filename, file)
78816
9ba57938f54d Issue #15828: Restore support for C extension modules in imp.load_module()
Nick Coghlan <ncoghlan@gmail.com>
parents: 78486
diff changeset
163 elif type_ == C_EXTENSION:
9ba57938f54d Issue #15828: Restore support for C extension modules in imp.load_module()
Nick Coghlan <ncoghlan@gmail.com>
parents: 78486
diff changeset
164 return load_dynamic(name, filename, file)
76877
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
165 elif type_ == PKG_DIRECTORY:
626d5c6fbd95 Issue #13959: Have
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diff changeset
166 return load_package(name, filename)
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
167 elif type_ == C_BUILTIN:
626d5c6fbd95 Issue #13959: Have
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diff changeset
168 return init_builtin(name)
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
169 elif type_ == PY_FROZEN:
626d5c6fbd95 Issue #13959: Have
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diff changeset
170 return init_frozen(name)
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
171 else:
78816
9ba57938f54d Issue #15828: Restore support for C extension modules in imp.load_module()
Nick Coghlan <ncoghlan@gmail.com>
parents: 78486
diff changeset
172 msg = "Don't know how to import {} (type code {})".format(name, type_)
76877
626d5c6fbd95 Issue #13959: Have
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parents: 76874
diff changeset
173 raise ImportError(msg, name=name)
76455
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
174
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
175
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
176 def find_module(name, path=None):
77456
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Brett Cannon <brett@python.org>
parents: 76877
diff changeset
177 """**DEPRECATED**
034c814eb187 Issue #13959: Add to imp.find_module() and load_module's docstrings
Brett Cannon <brett@python.org>
parents: 76877
diff changeset
178
034c814eb187 Issue #13959: Add to imp.find_module() and load_module's docstrings
Brett Cannon <brett@python.org>
parents: 76877
diff changeset
179 Search for a module.
76455
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
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parents: 76453
diff changeset
180
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
181 If path is omitted or None, search for a built-in, frozen or special
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
182 module and continue search in sys.path. The module name cannot
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
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parents: 76453
diff changeset
183 contain '.'; to search for a submodule of a package, pass the
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
184 submodule name and the package's __path__.
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
185
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
186 """
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
187 if not isinstance(name, str):
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
188 raise TypeError("'name' must be a str, not {}".format(type(name)))
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
189 elif not isinstance(path, (type(None), list)):
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
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parents: 76453
diff changeset
190 # Backwards-compatibility
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
191 raise RuntimeError("'list' must be None or a list, "
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
192 "not {}".format(type(name)))
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
193
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
194 if path is None:
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
195 if is_builtin(name):
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
196 return None, None, ('', '', C_BUILTIN)
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
197 elif is_frozen(name):
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
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parents: 76453
diff changeset
198 return None, None, ('', '', PY_FROZEN)
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
199 else:
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
200 path = sys.path
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
201
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
202 for entry in path:
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
203 package_directory = os.path.join(entry, name)
76874
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
204 for suffix in ['.py', machinery.BYTECODE_SUFFIXES[0]]:
76455
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
205 package_file_name = '__init__' + suffix
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
206 file_path = os.path.join(package_directory, package_file_name)
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
207 if os.path.isfile(file_path):
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
208 return None, package_directory, ('', '', PKG_DIRECTORY)
76874
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
209 with warnings.catch_warnings():
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
210 warnings.simplefilter('ignore')
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
211 for suffix, mode, type_ in get_suffixes():
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
212 file_name = name + suffix
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
213 file_path = os.path.join(entry, file_name)
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
214 if os.path.isfile(file_path):
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
215 break
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
216 else:
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
217 continue
b81ddaf0db47 Issue #13959: Deprecate imp.get_suffixes() for new attributes on
Brett Cannon <brett@python.org>
parents: 76769
diff changeset
218 break # Break out of outer loop when breaking out of inner loop.
76455
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
219 else:
78025
75831951a6b5 Issue #15256: Re-use the ImportError exception message as defined by
Brett Cannon <brett@python.org>
parents: 77917
diff changeset
220 raise ImportError(_bootstrap._ERR_MSG.format(name), name=name)
76455
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
221
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
222 encoding = None
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
223 if mode == 'U':
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
224 with open(file_path, 'rb') as file:
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
225 encoding = tokenize.detect_encoding(file.readline)[0]
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
226 file = open(file_path, mode, encoding=encoding)
085cf1480cfe Issue #13959: Re-implement imp.find_module() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76453
diff changeset
227 return file, file_path, (suffix, mode, type_)
76640
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
228
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
229
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
230 _RELOADING = {}
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
231
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
232 def reload(module):
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
233 """Reload the module and return it.
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
234
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
235 The module must have been successfully imported before.
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
236
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
237 """
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
238 if not module or type(module) != type(sys):
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
239 raise TypeError("reload() argument must be module")
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
240 name = module.__name__
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
241 if name not in sys.modules:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
242 msg = "module {} not in sys.modules"
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
243 raise ImportError(msg.format(name), name=name)
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
244 if name in _RELOADING:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
245 return _RELOADING[name]
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
246 _RELOADING[name] = module
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
247 try:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
248 parent_name = name.rpartition('.')[0]
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
249 if parent_name and parent_name not in sys.modules:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
250 msg = "parent {!r} not in sys.modules"
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
251 raise ImportError(msg.format(parentname), name=parent_name)
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
252 return module.__loader__.load_module(name)
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
253 finally:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
254 try:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
255 del _RELOADING[name]
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
256 except KeyError:
eb68502731dd Issues #13959, 14647: Re-implement imp.reload() in Lib/imp.py.
Brett Cannon <brett@python.org>
parents: 76633
diff changeset
257 pass