Update setuptools to 53.1.0

[pyup-bot]

This PR updates setuptools from 50.3.0 to 53.1.0.

Changelog

53.1.0

-------


Changes
^^^^^^^
* 1937: Preserved case-sensitivity of keys in setup.cfg so that entry point names are case-sensitive. Changed sensitivity of configparser. NOTE: Any projects relying on case-insensitivity will need to adapt to accept the original case as published. -- by :user:`melissa-kun-li`
* 2573: Fixed error in uploading a Sphinx doc with the :code:`upload_docs` command. An html builder will be used. 
Note: :code:`upload_docs` is deprecated for PyPi, but is supported for other sites -- by :user:`melissa-kun-li`

53.0.0

-------


Breaking Changes
^^^^^^^^^^^^^^^^
* 1527: Removed bootstrap script. Now Setuptools requires pip or another pep517-compliant builder such as 'build' to build. Now Setuptools can be installed from Github main branch.

52.0.0

-------


Breaking Changes
^^^^^^^^^^^^^^^^
* 2537: Remove fallback support for fetch_build_eggs using easy_install. Now pip is required for setup_requires to succeed.
* 2544: Removed 'easy_install' top-level model (runpy entry point) and 'easy_install' console script.
* 2545: Removed support for eggsecutables.

Changes
^^^^^^^
* 2459: Tests now run in parallel via pytest-xdist, completing in about half the time. Special thanks to :user:`webknjaz` for hard work implementing test isolation. To run without parallelization, disable the plugin with ``tox -- -p no:xdist``.

51.3.3

-------


Misc
^^^^
* 2539: Fix AttributeError in Description validation.

51.3.2

-------


Misc
^^^^
* 1390: Validation of Description field now is more lenient, emitting a warning and mangling the value to be valid (replacing newlines with spaces).

51.3.1

-------


Misc
^^^^
* 2536: Reverted tag deduplication handling.

51.3.0

-------


Changes
^^^^^^^
* 1390: Newlines in metadata description/Summary now trigger a ValueError.
* 2481: Define ``create_module()`` and ``exec_module()`` methods in ``VendorImporter``
to get rid of ``ImportWarning`` -- by :user:`hroncok`
* 2489: ``pkg_resources`` behavior for zipimport now matches the regular behavior, and finds
``.egg-info`` (previoulsy would only find ``.dist-info``) -- by :user:`thatch`
* 2529: Fixed an issue where version tags may be added multiple times

51.2.0

-------


Changes
^^^^^^^
* 2493: Use importlib.import_module() rather than the deprectated loader.load_module()
in pkg_resources namespace delaration -- by :user:`encukou`

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* 2525: Fix typo in the document page about entry point. -- by :user:`jtr109`

Misc
^^^^
* 2534: Avoid hitting network during test_easy_install.

51.1.2

-------


Misc
^^^^
* 2505: Disable inclusion of package data as it causes 'tests' to be included as data.

51.1.1

-------


Misc
^^^^
* 2534: Avoid hitting network during test_virtualenv.test_test_command.

51.1.0

-------


Changes
^^^^^^^
* 2486: Project adopts jaraco/skeleton for shared package maintenance.

Misc
^^^^
* 2477: Restore inclusion of rst files in sdist.
* 2484: Setuptools has replaced the master branch with the main branch.
* 2485: Fixed failing test when pip 20.3+ is present.
-- by :user:`yan12125`
* 2487: Fix tests with pytest 6.2
-- by :user:`yan12125`

51.0.0

-------


Breaking Changes
^^^^^^^^^^^^^^^^
* 2435: Require Python 3.6 or later.

Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* 2430: Fixed inconsistent RST title nesting levels caused by 2399
-- by :user:`webknjaz`
* 2430: Fixed a typo in Sphinx docs that made docs dev section disappear
as a result of PR 2426 -- by :user:`webknjaz`

Misc
^^^^
* 2471: Removed the tests that guarantee that the vendored dependencies can be built by distutils.

50.3.2

-------



Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* 2394: Extended towncrier news template to include change note categories.
This allows to see what types of changes a given version introduces
-- by :user:`webknjaz`
* 2427: Started enforcing strict syntax and reference validation
in the Sphinx docs -- by :user:`webknjaz`
* 2428: Removed redundant Sphinx ``Makefile`` support -- by :user:`webknjaz`

Misc
^^^^
* 2401: Enabled test results reporting in AppVeyor CI
-- by :user:`webknjaz`
* 2420: Replace Python 3.9.0 beta with 3.9.0 final on GitHub Actions.
* 2421: Python 3.9 Trove classifier got added to the dist metadata
-- by :user:`webknjaz`

50.3.1

-------



Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* 2093: Finalized doc revamp.
* 2097: doc: simplify index and group deprecated files
* 2102: doc overhaul step 2: break main doc into multiple sections
* 2111: doc overhaul step 3: update userguide
* 2395: Added a ``:user:`` role to Sphinx config -- by :user:`webknjaz`
* 2395: Added an illustrative explanation about the change notes to fragments dir -- by :user:`webknjaz`

Misc
^^^^
* 2379: Travis CI test suite now tests against PPC64.
* 2413: Suppress EOF errors (and other exceptions) when importing lib2to3.

Links

• PyPI: https://pypi.org/project/setuptools
• Changelog: https://pyup.io/changelogs/setuptools/
• Repo: https://github.com/pypa/setuptools

[pyup-bot]

Closing this in favor of #312