packvers
==========
.. start-intro
packvers is friendly fork of packaging to work around the drop for
LegacyVersion support. See https://github.com/pypa/packaging/issues/530
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 ``packvers`` 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 packvers
Discussion
----------
If you run into bugs, you can file them in our `issue tracker`_.
.. _`issue tracker`: https://github.com/nexB/packvers/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 History
---------------
Please review the ``CHANGELOG.rst`` file or the `Changelog documentation` for
recent changes and project history.
Changelog
---------
21.5 - 2022-12-22
~~~~~~~~~~~~~~~~~
* Renaming to packvers to avoid confusion
21.4 - 2022-12-22
~~~~~~~~~~~~~~~~~
* Fork of v21.3 to packaging2 as a workaround of https://github.com/pypa/packaging/issues/530
and reinstate support for LegacyVersion and LegacySpecifier
21.3 - 2021-11-17
~~~~~~~~~~~~~~~~~
* Add a ``pp3-none-any`` tag (`#311 <https://github.com/pypa/packaging/issues/311>`__)
* Replace the blank pyparsing 3 exclusion with a 3.0.5 exclusion (`#481 <https://github.com/pypa/packaging/issues/481>`__, `#486 <https://github.com/pypa/packaging/issues/486>`__)
* Fix a spelling mistake (`#479 <https://github.com/pypa/packaging/issues/479>`__)
21.2 - 2021-10-29
~~~~~~~~~~~~~~~~~
* Update documentation entry for 21.1.
21.1 - 2021-10-29
~~~~~~~~~~~~~~~~~
* Update pin to pyparsing to exclude 3.0.0.
21.0 - 2021-07-03
~~~~~~~~~~~~~~~~~
* PEP 656: musllinux support (`#411 <https://github.com/pypa/packaging/issues/411>`__)
* Drop support for Python 2.7, Python 3.4 and Python 3.5.
* Replace distutils usage with sysconfig (`#396 <https://github.com/pypa/packaging/issues/396>`__)
* Add support for zip files in ``parse_sdist_filename`` (`#429 <https://github.com/pypa/packaging/issues/429>`__)
* Use cached ``_hash`` attribute to short-circuit tag equality comparisons (`#417 <https://github.com/pypa/packaging/issues/417>`__)
* Specify the default value for the ``specifier`` argument to ``SpecifierSet`` (`#437 <https://github.com/pypa/packaging/issues/437>`__)
* Proper keyword-only "warn" argument in packaging.tags (`#403 <https://github.com/pypa/packaging/issues/403>`__)
* Correctly remove prerelease suffixes from ~= check (`#366 <https://github.com/pypa/packaging/issues/366>`__)
* Fix type hints for ``Version.post`` and ``Version.dev`` (`#393 <https://github.com/pypa/packaging/issues/393>`__)
* Use typing alias ``UnparsedVersion`` (`#398 <https://github.com/pypa/packaging/issues/398>`__)
* Improve type inference for ``packaging.specifiers.filter()`` (`#430 <https://github.com/pypa/packaging/issues/430>`__)
* Tighten the return type of ``canonicalize_version()`` (`#402 <https://github.com/pypa/packaging/issues/402>`__)
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 provided 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 arbitrary 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/
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"author": "Donald Stufft and individual contributors",
"author_email": "donald@stufft.io",
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"description": "packvers\n==========\n\n.. start-intro\n\npackvers is friendly fork of packaging to work around the drop for\nLegacyVersion support. See https://github.com/pypa/packaging/issues/530\n\n\nReusable core utilities for various Python Packaging\n`interoperability specifications <https://packaging.python.org/specifications/>`_.\n\nThis library provides utilities that implement the interoperability\nspecifications which have clearly one correct behaviour (eg: :pep:`440`)\nor benefit greatly from having a single shared implementation (eg: :pep:`425`).\n\n.. end-intro\n\nThe ``packvers`` project includes the following: version handling, specifiers,\nmarkers, requirements, tags, utilities.\n\nDocumentation\n-------------\n\nThe `documentation`_ provides information and the API for the following:\n\n- Version Handling\n- Specifiers\n- Markers\n- Requirements\n- Tags\n- Utilities\n\nInstallation\n------------\n\nUse ``pip`` to install these utilities::\n\n pip install packvers\n\nDiscussion\n----------\n\nIf you run into bugs, you can file them in our `issue tracker`_.\n\n\n.. _`issue tracker`: https://github.com/nexB/packvers/issues\n\n\nCode of Conduct\n---------------\n\nEveryone interacting in the packaging project's codebases, issue trackers, chat\nrooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.\n\n.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md\n\nContributing\n------------\n\nThe ``CONTRIBUTING.rst`` file outlines how to contribute to this project as\nwell as how to report a potential security issue. The documentation for this\nproject also covers information about `project development` and `security`.\n\n\nProject History\n---------------\n\nPlease review the ``CHANGELOG.rst`` file or the `Changelog documentation` for\nrecent changes and project history.\n\nChangelog\n---------\n\n21.5 - 2022-12-22\n~~~~~~~~~~~~~~~~~\n\n* Renaming to packvers to avoid confusion\n\n\n21.4 - 2022-12-22\n~~~~~~~~~~~~~~~~~\n\n* Fork of v21.3 to packaging2 as a workaround of https://github.com/pypa/packaging/issues/530\n and reinstate support for LegacyVersion and LegacySpecifier\n\n\n21.3 - 2021-11-17\n~~~~~~~~~~~~~~~~~\n\n* Add a ``pp3-none-any`` tag (`#311 <https://github.com/pypa/packaging/issues/311>`__)\n* Replace the blank pyparsing 3 exclusion with a 3.0.5 exclusion (`#481 <https://github.com/pypa/packaging/issues/481>`__, `#486 <https://github.com/pypa/packaging/issues/486>`__)\n* Fix a spelling mistake (`#479 <https://github.com/pypa/packaging/issues/479>`__)\n\n21.2 - 2021-10-29\n~~~~~~~~~~~~~~~~~\n\n* Update documentation entry for 21.1.\n\n21.1 - 2021-10-29\n~~~~~~~~~~~~~~~~~\n\n* Update pin to pyparsing to exclude 3.0.0.\n\n21.0 - 2021-07-03\n~~~~~~~~~~~~~~~~~\n\n* PEP 656: musllinux support (`#411 <https://github.com/pypa/packaging/issues/411>`__)\n* Drop support for Python 2.7, Python 3.4 and Python 3.5.\n* Replace distutils usage with sysconfig (`#396 <https://github.com/pypa/packaging/issues/396>`__)\n* Add support for zip files in ``parse_sdist_filename`` (`#429 <https://github.com/pypa/packaging/issues/429>`__)\n* Use cached ``_hash`` attribute to short-circuit tag equality comparisons (`#417 <https://github.com/pypa/packaging/issues/417>`__)\n* Specify the default value for the ``specifier`` argument to ``SpecifierSet`` (`#437 <https://github.com/pypa/packaging/issues/437>`__)\n* Proper keyword-only \"warn\" argument in packaging.tags (`#403 <https://github.com/pypa/packaging/issues/403>`__)\n* Correctly remove prerelease suffixes from ~= check (`#366 <https://github.com/pypa/packaging/issues/366>`__)\n* Fix type hints for ``Version.post`` and ``Version.dev`` (`#393 <https://github.com/pypa/packaging/issues/393>`__)\n* Use typing alias ``UnparsedVersion`` (`#398 <https://github.com/pypa/packaging/issues/398>`__)\n* Improve type inference for ``packaging.specifiers.filter()`` (`#430 <https://github.com/pypa/packaging/issues/430>`__)\n* Tighten the return type of ``canonicalize_version()`` (`#402 <https://github.com/pypa/packaging/issues/402>`__)\n\n20.9 - 2021-01-29\n~~~~~~~~~~~~~~~~~\n\n* Run `isort <https://pypi.org/project/isort/>`_ over the code base (`#377 <https://github.com/pypa/packaging/issues/377>`__)\n* Add support for the ``macosx_10_*_universal2`` platform tags (`#379 <https://github.com/pypa/packaging/issues/379>`__)\n* Introduce ``packaging.utils.parse_wheel_filename()`` and ``parse_sdist_filename()``\n (`#387 <https://github.com/pypa/packaging/issues/387>`__ and `#389 <https://github.com/pypa/packaging/issues/389>`__)\n\n20.8 - 2020-12-11\n~~~~~~~~~~~~~~~~~\n\n* Revert back to setuptools for compatibility purposes for some Linux distros (`#363 <https://github.com/pypa/packaging/issues/363>`__)\n* Do not insert an underscore in wheel tags when the interpreter version number\n is more than 2 digits (`#372 <https://github.com/pypa/packaging/issues/372>`__)\n\n20.7 - 2020-11-28\n~~~~~~~~~~~~~~~~~\n\nNo unreleased changes.\n\n20.6 - 2020-11-28\n~~~~~~~~~~~~~~~~~\n\n.. note:: This release was subsequently yanked, and these changes were included in 20.7.\n\n* Fix flit configuration, to include LICENSE files (`#357 <https://github.com/pypa/packaging/issues/357>`__)\n* Make `intel` a recognized CPU architecture for the `universal` macOS platform tag (`#361 <https://github.com/pypa/packaging/issues/361>`__)\n* Add some missing type hints to `packaging.requirements` (issue:`350`)\n\n20.5 - 2020-11-27\n~~~~~~~~~~~~~~~~~\n\n* Officially support Python 3.9 (`#343 <https://github.com/pypa/packaging/issues/343>`__)\n* Deprecate the ``LegacyVersion`` and ``LegacySpecifier`` classes (`#321 <https://github.com/pypa/packaging/issues/321>`__)\n* Handle ``OSError`` on non-dynamic executables when attempting to resolve\n the glibc version string.\n\n20.4 - 2020-05-19\n~~~~~~~~~~~~~~~~~\n\n* Canonicalize version before comparing specifiers. (`#282 <https://github.com/pypa/packaging/issues/282>`__)\n* Change type hint for ``canonicalize_name`` to return\n ``packaging.utils.NormalizedName``.\n This enables the use of static typing tools (like mypy) to detect mixing of\n normalized and un-normalized names.\n\n20.3 - 2020-03-05\n~~~~~~~~~~~~~~~~~\n\n* Fix changelog for 20.2.\n\n20.2 - 2020-03-05\n~~~~~~~~~~~~~~~~~\n\n* Fix a bug that caused a 32-bit OS that runs on a 64-bit ARM CPU (e.g. ARM-v8,\n aarch64), to report the wrong bitness.\n\n20.1 - 2020-01-24\n~~~~~~~~~~~~~~~~~~~\n\n* Fix a bug caused by reuse of an exhausted iterator. (`#257 <https://github.com/pypa/packaging/issues/257>`__)\n\n20.0 - 2020-01-06\n~~~~~~~~~~~~~~~~~\n\n* Add type hints (`#191 <https://github.com/pypa/packaging/issues/191>`__)\n\n* Add proper trove classifiers for PyPy support (`#198 <https://github.com/pypa/packaging/issues/198>`__)\n\n* Scale back depending on ``ctypes`` for manylinux support detection (`#171 <https://github.com/pypa/packaging/issues/171>`__)\n\n* Use ``sys.implementation.name`` where appropriate for ``packaging.tags`` (`#193 <https://github.com/pypa/packaging/issues/193>`__)\n\n* Expand upon the API provided by ``packaging.tags``: ``interpreter_name()``, ``mac_platforms()``, ``compatible_tags()``, ``cpython_tags()``, ``generic_tags()`` (`#187 <https://github.com/pypa/packaging/issues/187>`__)\n\n* Officially support Python 3.8 (`#232 <https://github.com/pypa/packaging/issues/232>`__)\n\n* Add ``major``, ``minor``, and ``micro`` aliases to ``packaging.version.Version`` (`#226 <https://github.com/pypa/packaging/issues/226>`__)\n\n* Properly mark ``packaging`` has being fully typed by adding a `py.typed` file (`#226 <https://github.com/pypa/packaging/issues/226>`__)\n\n19.2 - 2019-09-18\n~~~~~~~~~~~~~~~~~\n\n* Remove dependency on ``attrs`` (`#178 <https://github.com/pypa/packaging/issues/178>`__, `#179 <https://github.com/pypa/packaging/issues/179>`__)\n\n* Use appropriate fallbacks for CPython ABI tag (`#181 <https://github.com/pypa/packaging/issues/181>`__, `#185 <https://github.com/pypa/packaging/issues/185>`__)\n\n* Add manylinux2014 support (`#186 <https://github.com/pypa/packaging/issues/186>`__)\n\n* Improve ABI detection (`#181 <https://github.com/pypa/packaging/issues/181>`__)\n\n* Properly handle debug wheels for Python 3.8 (`#172 <https://github.com/pypa/packaging/issues/172>`__)\n\n* Improve detection of debug builds on Windows (`#194 <https://github.com/pypa/packaging/issues/194>`__)\n\n19.1 - 2019-07-30\n~~~~~~~~~~~~~~~~~\n\n* Add the ``packaging.tags`` module. (`#156 <https://github.com/pypa/packaging/issues/156>`__)\n\n* Correctly handle two-digit versions in ``python_version`` (`#119 <https://github.com/pypa/packaging/issues/119>`__)\n\n\n19.0 - 2019-01-20\n~~~~~~~~~~~~~~~~~\n\n* Fix string representation of PEP 508 direct URL requirements with markers.\n\n* Better handling of file URLs\n\n This allows for using ``file:///absolute/path``, which was previously\n prevented due to the missing ``netloc``.\n\n This allows for all file URLs that ``urlunparse`` turns back into the\n original URL to be valid.\n\n\n18.0 - 2018-09-26\n~~~~~~~~~~~~~~~~~\n\n* Improve error messages when invalid requirements are given. (`#129 <https://github.com/pypa/packaging/issues/129>`__)\n\n\n17.1 - 2017-02-28\n~~~~~~~~~~~~~~~~~\n\n* Fix ``utils.canonicalize_version`` when supplying non PEP 440 versions.\n\n\n17.0 - 2017-02-28\n~~~~~~~~~~~~~~~~~\n\n* Drop support for python 2.6, 3.2, and 3.3.\n\n* Define minimal pyparsing version to 2.0.2 (`#91 <https://github.com/pypa/packaging/issues/91>`__).\n\n* Add ``epoch``, ``release``, ``pre``, ``dev``, and ``post`` attributes to\n ``Version`` and ``LegacyVersion`` (`#34 <https://github.com/pypa/packaging/issues/34>`__).\n\n* Add ``Version().is_devrelease`` and ``LegacyVersion().is_devrelease`` to\n make it easy to determine if a release is a development release.\n\n* Add ``utils.canonicalize_version`` to canonicalize version strings or\n ``Version`` instances (`#121 <https://github.com/pypa/packaging/issues/121>`__).\n\n\n16.8 - 2016-10-29\n~~~~~~~~~~~~~~~~~\n\n* Fix markers that utilize ``in`` so that they render correctly.\n\n* Fix an erroneous test on Python RC releases.\n\n\n16.7 - 2016-04-23\n~~~~~~~~~~~~~~~~~\n\n* Add support for the deprecated ``python_implementation`` marker which was\n an undocumented setuptools marker in addition to the newer markers.\n\n\n16.6 - 2016-03-29\n~~~~~~~~~~~~~~~~~\n\n* Add support for the deprecated, PEP 345 environment markers in addition to\n the newer markers.\n\n\n16.5 - 2016-02-26\n~~~~~~~~~~~~~~~~~\n\n* Fix a regression in parsing requirements with whitespaces between the comma\n separators.\n\n\n16.4 - 2016-02-22\n~~~~~~~~~~~~~~~~~\n\n* Fix a regression in parsing requirements like ``foo (==4)``.\n\n\n16.3 - 2016-02-21\n~~~~~~~~~~~~~~~~~\n\n* Fix a bug where ``packaging.requirements:Requirement`` was overly strict when\n matching legacy requirements.\n\n\n16.2 - 2016-02-09\n~~~~~~~~~~~~~~~~~\n\n* Add a function that implements the name canonicalization from PEP 503.\n\n\n16.1 - 2016-02-07\n~~~~~~~~~~~~~~~~~\n\n* Implement requirement specifiers from PEP 508.\n\n\n16.0 - 2016-01-19\n~~~~~~~~~~~~~~~~~\n\n* Relicense so that packaging is available under *either* the Apache License,\n Version 2.0 or a 2 Clause BSD license.\n\n* Support installation of packaging when only distutils is available.\n\n* Fix ``==`` comparison when there is a prefix and a local version in play.\n (`#41 <https://github.com/pypa/packaging/issues/41>`__).\n\n* Implement environment markers from PEP 508.\n\n\n15.3 - 2015-08-01\n~~~~~~~~~~~~~~~~~\n\n* Normalize post-release spellings for rev/r prefixes. `#35 <https://github.com/pypa/packaging/issues/35>`__\n\n\n15.2 - 2015-05-13\n~~~~~~~~~~~~~~~~~\n\n* Fix an error where the arbitrary specifier (``===``) was not correctly\n allowing pre-releases when it was being used.\n\n* Expose the specifier and version parts through properties on the\n ``Specifier`` classes.\n\n* Allow iterating over the ``SpecifierSet`` to get access to all of the\n ``Specifier`` instances.\n\n* Allow testing if a version is contained within a specifier via the ``in``\n operator.\n\n\n15.1 - 2015-04-13\n~~~~~~~~~~~~~~~~~\n\n* Fix a logic error that was causing inconsistent answers about whether or not\n a pre-release was contained within a ``SpecifierSet`` or not.\n\n\n15.0 - 2015-01-02\n~~~~~~~~~~~~~~~~~\n\n* Add ``Version().is_postrelease`` and ``LegacyVersion().is_postrelease`` to\n make it easy to determine if a release is a post release.\n\n* Add ``Version().base_version`` and ``LegacyVersion().base_version`` to make\n it easy to get the public version without any pre or post release markers.\n\n* Support the update to PEP 440 which removed the implied ``!=V.*`` when using\n either ``>V`` or ``<V`` and which instead special cased the handling of\n pre-releases, post-releases, and local versions when using ``>V`` or ``<V``.\n\n\n14.5 - 2014-12-17\n~~~~~~~~~~~~~~~~~\n\n* Normalize release candidates as ``rc`` instead of ``c``.\n\n* Expose the ``VERSION_PATTERN`` constant, a regular expression matching\n a valid version.\n\n\n14.4 - 2014-12-15\n~~~~~~~~~~~~~~~~~\n\n* Ensure that versions are normalized before comparison when used in a\n specifier with a less than (``<``) or greater than (``>``) operator.\n\n\n14.3 - 2014-11-19\n~~~~~~~~~~~~~~~~~\n\n* **BACKWARDS INCOMPATIBLE** Refactor specifier support so that it can sanely\n handle legacy specifiers as well as PEP 440 specifiers.\n\n* **BACKWARDS INCOMPATIBLE** Move the specifier support out of\n ``packaging.version`` into ``packaging.specifiers``.\n\n\n14.2 - 2014-09-10\n~~~~~~~~~~~~~~~~~\n\n* Add prerelease support to ``Specifier``.\n* Remove the ability to do ``item in Specifier()`` and replace it with\n ``Specifier().contains(item)`` in order to allow flags that signal if a\n prerelease should be accepted or not.\n* Add a method ``Specifier().filter()`` which will take an iterable and returns\n an iterable with items that do not match the specifier filtered out.\n\n\n14.1 - 2014-09-08\n~~~~~~~~~~~~~~~~~\n\n* Allow ``LegacyVersion`` and ``Version`` to be sorted together.\n* Add ``packaging.version.parse()`` to enable easily parsing a version string\n as either a ``Version`` or a ``LegacyVersion`` depending on it's PEP 440\n validity.\n\n\n14.0 - 2014-09-05\n~~~~~~~~~~~~~~~~~\n\n* Initial release.\n\n\n.. _`master`: https://github.com/pypa/packaging/\n",
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