1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
|
Metadata-Version: 2.1
Name: packaging
Version: 20.9
Summary: Core utilities for Python packages
Home-page: https://github.com/pypa/packaging
Author: Donald Stufft and individual contributors
Author-email: donald@stufft.io
License: BSD-2-Clause or Apache-2.0
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Apache Software License
Classifier: License :: OSI Approved :: BSD License
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
Description-Content-Type: text/x-rst
Requires-Dist: pyparsing (>=2.0.2)
packaging
=========
.. start-intro
Reusable core utilities for various Python Packaging
`interoperability specifications <https://packaging.python.org/specifications/>`_.
This library provides utilities that implement the interoperability
specifications which have clearly one correct behaviour (eg: :pep:`440`)
or benefit greatly from having a single shared implementation (eg: :pep:`425`).
.. end-intro
The ``packaging`` project includes the following: version handling, specifiers,
markers, requirements, tags, utilities.
Documentation
-------------
The `documentation`_ provides information and the API for the following:
- Version Handling
- Specifiers
- Markers
- Requirements
- Tags
- Utilities
Installation
------------
Use ``pip`` to install these utilities::
pip install packaging
Discussion
----------
If you run into bugs, you can file them in our `issue tracker`_.
You can also join ``#pypa`` on Freenode to ask questions or get involved.
.. _`documentation`: https://packaging.pypa.io/
.. _`issue tracker`: https://github.com/pypa/packaging/issues
Code of Conduct
---------------
Everyone interacting in the packaging project's codebases, issue trackers, chat
rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md
Contributing
------------
The ``CONTRIBUTING.rst`` file outlines how to contribute to this project as
well as how to report a potential security issue. The documentation for this
project also covers information about `project development`_ and `security`_.
.. _`project development`: https://packaging.pypa.io/en/latest/development/
.. _`security`: https://packaging.pypa.io/en/latest/security/
Project History
---------------
Please review the ``CHANGELOG.rst`` file or the `Changelog documentation`_ for
recent changes and project history.
.. _`Changelog documentation`: https://packaging.pypa.io/en/latest/changelog/
Changelog
---------
20.9 - 2021-01-29
~~~~~~~~~~~~~~~~~
* Run [isort](https://pypi.org/project/isort/) over the code base (`#377 <https://github.com/pypa/packaging/issues/377>`__)
* Add support for the ``macosx_10_*_universal2`` platform tags (`#379 <https://github.com/pypa/packaging/issues/379>`__)
* Introduce ``packaging.utils.parse_wheel_filename()`` and ``parse_sdist_filename()``
(`#387 <https://github.com/pypa/packaging/issues/387>`__ and `#389 <https://github.com/pypa/packaging/issues/389>`__)
20.8 - 2020-12-11
~~~~~~~~~~~~~~~~~
* Revert back to setuptools for compatibility purposes for some Linux distros (`#363 <https://github.com/pypa/packaging/issues/363>`__)
* Do not insert an underscore in wheel tags when the interpreter version number
is more than 2 digits (`#372 <https://github.com/pypa/packaging/issues/372>`__)
20.7 - 2020-11-28
~~~~~~~~~~~~~~~~~
No unreleased changes.
20.6 - 2020-11-28
~~~~~~~~~~~~~~~~~
.. note:: This release was subsequently yanked, and these changes were included in 20.7.
* Fix flit configuration, to include LICENSE files (`#357 <https://github.com/pypa/packaging/issues/357>`__)
* Make `intel` a recognized CPU architecture for the `universal` macOS platform tag (`#361 <https://github.com/pypa/packaging/issues/361>`__)
* Add some missing type hints to `packaging.requirements` (issue:`350`)
20.5 - 2020-11-27
~~~~~~~~~~~~~~~~~
* Officially support Python 3.9 (`#343 <https://github.com/pypa/packaging/issues/343>`__)
* Deprecate the ``LegacyVersion`` and ``LegacySpecifier`` classes (`#321 <https://github.com/pypa/packaging/issues/321>`__)
* Handle ``OSError`` on non-dynamic executables when attempting to resolve
the glibc version string.
20.4 - 2020-05-19
~~~~~~~~~~~~~~~~~
* Canonicalize version before comparing specifiers. (`#282 <https://github.com/pypa/packaging/issues/282>`__)
* Change type hint for ``canonicalize_name`` to return
``packaging.utils.NormalizedName``.
This enables the use of static typing tools (like mypy) to detect mixing of
normalized and un-normalized names.
20.3 - 2020-03-05
~~~~~~~~~~~~~~~~~
* Fix changelog for 20.2.
20.2 - 2020-03-05
~~~~~~~~~~~~~~~~~
* Fix a bug that caused a 32-bit OS that runs on a 64-bit ARM CPU (e.g. ARM-v8,
aarch64), to report the wrong bitness.
20.1 - 2020-01-24
~~~~~~~~~~~~~~~~~~~
* Fix a bug caused by reuse of an exhausted iterator. (`#257 <https://github.com/pypa/packaging/issues/257>`__)
20.0 - 2020-01-06
~~~~~~~~~~~~~~~~~
* Add type hints (`#191 <https://github.com/pypa/packaging/issues/191>`__)
* Add proper trove classifiers for PyPy support (`#198 <https://github.com/pypa/packaging/issues/198>`__)
* Scale back depending on ``ctypes`` for manylinux support detection (`#171 <https://github.com/pypa/packaging/issues/171>`__)
* Use ``sys.implementation.name`` where appropriate for ``packaging.tags`` (`#193 <https://github.com/pypa/packaging/issues/193>`__)
* Expand upon the API provded by ``packaging.tags``: ``interpreter_name()``, ``mac_platforms()``, ``compatible_tags()``, ``cpython_tags()``, ``generic_tags()`` (`#187 <https://github.com/pypa/packaging/issues/187>`__)
* Officially support Python 3.8 (`#232 <https://github.com/pypa/packaging/issues/232>`__)
* Add ``major``, ``minor``, and ``micro`` aliases to ``packaging.version.Version`` (`#226 <https://github.com/pypa/packaging/issues/226>`__)
* Properly mark ``packaging`` has being fully typed by adding a `py.typed` file (`#226 <https://github.com/pypa/packaging/issues/226>`__)
19.2 - 2019-09-18
~~~~~~~~~~~~~~~~~
* Remove dependency on ``attrs`` (`#178 <https://github.com/pypa/packaging/issues/178>`__, `#179 <https://github.com/pypa/packaging/issues/179>`__)
* Use appropriate fallbacks for CPython ABI tag (`#181 <https://github.com/pypa/packaging/issues/181>`__, `#185 <https://github.com/pypa/packaging/issues/185>`__)
* Add manylinux2014 support (`#186 <https://github.com/pypa/packaging/issues/186>`__)
* Improve ABI detection (`#181 <https://github.com/pypa/packaging/issues/181>`__)
* Properly handle debug wheels for Python 3.8 (`#172 <https://github.com/pypa/packaging/issues/172>`__)
* Improve detection of debug builds on Windows (`#194 <https://github.com/pypa/packaging/issues/194>`__)
19.1 - 2019-07-30
~~~~~~~~~~~~~~~~~
* Add the ``packaging.tags`` module. (`#156 <https://github.com/pypa/packaging/issues/156>`__)
* Correctly handle two-digit versions in ``python_version`` (`#119 <https://github.com/pypa/packaging/issues/119>`__)
19.0 - 2019-01-20
~~~~~~~~~~~~~~~~~
* Fix string representation of PEP 508 direct URL requirements with markers.
* Better handling of file URLs
This allows for using ``file:///absolute/path``, which was previously
prevented due to the missing ``netloc``.
This allows for all file URLs that ``urlunparse`` turns back into the
original URL to be valid.
18.0 - 2018-09-26
~~~~~~~~~~~~~~~~~
* Improve error messages when invalid requirements are given. (`#129 <https://github.com/pypa/packaging/issues/129>`__)
17.1 - 2017-02-28
~~~~~~~~~~~~~~~~~
* Fix ``utils.canonicalize_version`` when supplying non PEP 440 versions.
17.0 - 2017-02-28
~~~~~~~~~~~~~~~~~
* Drop support for python 2.6, 3.2, and 3.3.
* Define minimal pyparsing version to 2.0.2 (`#91 <https://github.com/pypa/packaging/issues/91>`__).
* Add ``epoch``, ``release``, ``pre``, ``dev``, and ``post`` attributes to
``Version`` and ``LegacyVersion`` (`#34 <https://github.com/pypa/packaging/issues/34>`__).
* Add ``Version().is_devrelease`` and ``LegacyVersion().is_devrelease`` to
make it easy to determine if a release is a development release.
* Add ``utils.canonicalize_version`` to canonicalize version strings or
``Version`` instances (`#121 <https://github.com/pypa/packaging/issues/121>`__).
16.8 - 2016-10-29
~~~~~~~~~~~~~~~~~
* Fix markers that utilize ``in`` so that they render correctly.
* Fix an erroneous test on Python RC releases.
16.7 - 2016-04-23
~~~~~~~~~~~~~~~~~
* Add support for the deprecated ``python_implementation`` marker which was
an undocumented setuptools marker in addition to the newer markers.
16.6 - 2016-03-29
~~~~~~~~~~~~~~~~~
* Add support for the deprecated, PEP 345 environment markers in addition to
the newer markers.
16.5 - 2016-02-26
~~~~~~~~~~~~~~~~~
* Fix a regression in parsing requirements with whitespaces between the comma
separators.
16.4 - 2016-02-22
~~~~~~~~~~~~~~~~~
* Fix a regression in parsing requirements like ``foo (==4)``.
16.3 - 2016-02-21
~~~~~~~~~~~~~~~~~
* Fix a bug where ``packaging.requirements:Requirement`` was overly strict when
matching legacy requirements.
16.2 - 2016-02-09
~~~~~~~~~~~~~~~~~
* Add a function that implements the name canonicalization from PEP 503.
16.1 - 2016-02-07
~~~~~~~~~~~~~~~~~
* Implement requirement specifiers from PEP 508.
16.0 - 2016-01-19
~~~~~~~~~~~~~~~~~
* Relicense so that packaging is available under *either* the Apache License,
Version 2.0 or a 2 Clause BSD license.
* Support installation of packaging when only distutils is available.
* Fix ``==`` comparison when there is a prefix and a local version in play.
(`#41 <https://github.com/pypa/packaging/issues/41>`__).
* Implement environment markers from PEP 508.
15.3 - 2015-08-01
~~~~~~~~~~~~~~~~~
* Normalize post-release spellings for rev/r prefixes. `#35 <https://github.com/pypa/packaging/issues/35>`__
15.2 - 2015-05-13
~~~~~~~~~~~~~~~~~
* Fix an error where the arbitary specifier (``===``) was not correctly
allowing pre-releases when it was being used.
* Expose the specifier and version parts through properties on the
``Specifier`` classes.
* Allow iterating over the ``SpecifierSet`` to get access to all of the
``Specifier`` instances.
* Allow testing if a version is contained within a specifier via the ``in``
operator.
15.1 - 2015-04-13
~~~~~~~~~~~~~~~~~
* Fix a logic error that was causing inconsistent answers about whether or not
a pre-release was contained within a ``SpecifierSet`` or not.
15.0 - 2015-01-02
~~~~~~~~~~~~~~~~~
* Add ``Version().is_postrelease`` and ``LegacyVersion().is_postrelease`` to
make it easy to determine if a release is a post release.
* Add ``Version().base_version`` and ``LegacyVersion().base_version`` to make
it easy to get the public version without any pre or post release markers.
* Support the update to PEP 440 which removed the implied ``!=V.*`` when using
either ``>V`` or ``<V`` and which instead special cased the handling of
pre-releases, post-releases, and local versions when using ``>V`` or ``<V``.
14.5 - 2014-12-17
~~~~~~~~~~~~~~~~~
* Normalize release candidates as ``rc`` instead of ``c``.
* Expose the ``VERSION_PATTERN`` constant, a regular expression matching
a valid version.
14.4 - 2014-12-15
~~~~~~~~~~~~~~~~~
* Ensure that versions are normalized before comparison when used in a
specifier with a less than (``<``) or greater than (``>``) operator.
14.3 - 2014-11-19
~~~~~~~~~~~~~~~~~
* **BACKWARDS INCOMPATIBLE** Refactor specifier support so that it can sanely
handle legacy specifiers as well as PEP 440 specifiers.
* **BACKWARDS INCOMPATIBLE** Move the specifier support out of
``packaging.version`` into ``packaging.specifiers``.
14.2 - 2014-09-10
~~~~~~~~~~~~~~~~~
* Add prerelease support to ``Specifier``.
* Remove the ability to do ``item in Specifier()`` and replace it with
``Specifier().contains(item)`` in order to allow flags that signal if a
prerelease should be accepted or not.
* Add a method ``Specifier().filter()`` which will take an iterable and returns
an iterable with items that do not match the specifier filtered out.
14.1 - 2014-09-08
~~~~~~~~~~~~~~~~~
* Allow ``LegacyVersion`` and ``Version`` to be sorted together.
* Add ``packaging.version.parse()`` to enable easily parsing a version string
as either a ``Version`` or a ``LegacyVersion`` depending on it's PEP 440
validity.
14.0 - 2014-09-05
~~~~~~~~~~~~~~~~~
* Initial release.
.. _`master`: https://github.com/pypa/packaging/
|