Update virtualenv to 20.26.6

[pyup-bot]

This PR updates virtualenv from 15.1.0 to 20.26.6.

Changelog

20.26.6

~~~~~~~~~~~~~~~~~~
- Properly quote string placeholders in activation script templates to mitigate
potential command injection - by :user:`y5c4l3`. (:issue:`2768`)

20.26.5

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels: setuptools to ``75.1.0`` from ``74.1.2`` - by :user:`gaborbernat`. (:issue:`2765`)

20.26.4

~~~~~~~~~~~~~~~~~~
- no longer create `()` output in console during activation of a virtualenv by .bat file. (:issue:`2728`)
- Upgrade embedded wheels:

* wheel to ``0.44.0`` from ``0.43.0``
* pip to ``24.2`` from ``24.1``
* setuptools to ``74.1.2`` from ``70.1.0`` (:issue:`2760`)

20.26.3

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

* setuptools to ``70.1.0`` from ``69.5.1``
* pip to ``24.1`` from ``24.0`` (:issue:`2741`)

20.26.2

~~~~~~~~~~~~~~~~~~
- ``virtualenv.pyz`` no longer fails when zipapp path contains a symlink - by :user:`HandSonic` and :user:`petamas`. (:issue:`1949`)
- Fix bad return code from activate.sh if hashing is disabled - by :user:'fenkes-ibm'. (:issue:`2717`)

20.26.1

~~~~~~~~~~~~~~~~~~
- fix PATH-based Python discovery on Windows - by :user:`ofek`. (:issue:`2712`)

20.26.0

~~~~~~~~~~~~~~~~~~
- allow builtin discovery to discover specific interpreters (e.g. ``python3.12``) given an unspecific spec (e.g. ``python3``) - by :user:`flying-sheep`. (:issue:`2709`)

20.25.3

~~~~~~~~~~~~~~~~~~
- Python 3.13.0a6 renamed pathmod to parser. (:issue:`2702`)

20.25.2

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

- setuptools of ``69.1.0`` to ``69.5.1``
- wheel of ``0.42.0`` to ``0.43.0`` (:issue:`2699`)

20.25.1

~~~~~~~~~~~~~~
- :issue:`2688`

20.25.0

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

* wheel to ``0.41.3`` from ``0.41.2`` (:issue:`2665`)
- Upgrade embedded wheels:

* wheel to ``0.42.0`` from ``0.41.3``
* setuptools to ``69.0.2`` from ``68.2.2`` (:issue:`2669`)

20.24.6

~~~~~~~~~~~~~~~~~~
- Use get_hookimpls method instead of the private attribute in tests. (:issue:`2649`)
- Upgrade embedded wheels:

* setuptools to ``68.2.2`` from ``68.2.0``
* pip to ``23.3.1`` from ``23.2.1`` (:issue:`2656`)

20.24.5

~~~~~~~~~~~~~~~~~~
- Declare PyPy 3.10 support - by :user:`cclauss`. (:issue:`2638`)
- Brew on macOS no longer allows copy builds - disallow choosing this by :user:`gaborbernat`. (:issue:`2640`)
- Upgrade embedded wheels:

* setuptools to ``68.2.0`` from ``68.1.2`` (:issue:`2642`)

20.24.4

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

* setuptools to ``68.1.2`` from ``68.1.0`` on ``3.8+``
* wheel to ``0.41.2`` from ``0.41.1``  on ``3.7+`` (:issue:`2628`)

20.24.3

~~~~~~~~~~~~~~
- :issue:`2610`

20.24.2

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

* pip to ``23.2.1`` from ``23.2``
* wheel to ``0.41.0`` from ``0.40.0`` (:issue:`2614`)

20.24.1

~~~~~~~~~~~~~~~~~~
- Upgrade embedded wheels:

* pip to ``23.2`` from ``23.1.2`` - by :user:`arielkirkwood` (:issue:`2611`)

20.24.0

~~~~~~~~~~~~~~~~~~
- Fix test suite - by :user:`gaborbernat`. (:issue:`2592`)
- Upgrade embedded wheels:

* setuptools to ``68.0.0`` from ``67.8.0`` (:issue:`2607`)

20.23.1

~~~~~~~~~~~~~~~~~~
- update and simplify nushell activation script, fixes an issue on Windows resulting in consecutive command not found - by :user:`melMass`. (:issue:`2572`)
- Upgrade embedded wheels:

* setuptools to ``67.8.0`` from ``67.7.2`` (:issue:`2588`)

20.23.0

~~~~~~~~~~~~~~~~~~
- Prevent ``PermissionError`` when using venv creator on systems that deliver files without user write
permission - by :user:`kulikjak`. (:issue:`2543`)
- Upgrade setuptools to ``67.7.2`` from ``67.6.1`` and pip to ``23.1.2`` from ``23.1`` - by :user:`szleb`. (:issue:`2560`)

20.22.0

~~~~~~~~~~~~~~~~~~
- Drop support for creating Python <=3.6 (including 2) interpreters. Removed pip of ``20.3.4``, ``21.3.1``; wheel of
``0.37.1``; setuptools of ``59.6.0``, ``44.1.1``, ``50.3.2``- by :user:`gaborbernat`. (:issue:`2548`)

20.21.1

~~~~~~~~~~~~~~~~~~
- Add ``tox.ini`` to sdist - by :user:`mtelka`. (:issue:`2511`)
- Move the use of 'let' in nushell to ensure compatibility with future releases of nushell, where 'let' no longer
assumes that its initializer is a full expressions. (:issue:`2527`)
- The nushell command 'str collect' has been superseded by the 'str join' command. The activate.nu script has
been updated to reflect this change. (:issue:`2532`)
- Upgrade embedded wheels:

* wheel to ``0.40.0`` from ``0.38.4``
* setuptools to ``67.6.1`` from ``67.4.0``
* pip to ``23.1`` from ``23.0.1`` (:issue:`2546`)

20.21.0

~~~~~~~~~~~~~~~~~~
- Add ``print`` command to nushell print_prompt to ensure compatibility with future release of nushell,
where intermediate commands no longer print their result to stdout. (:issue:`2514`)
- Do not assume the default encoding. (:issue:`2515`)
- Make ``ReentrantFileLock`` thread-safe and,
thereby, fix race condition in ``virtualenv.cli_run`` - by :user:`radoering`. (:issue:`2516`)

20.20.0

~~~~~~~~~~~~~~~~~~
- Discover CPython implementations distributed on Windows by any organization - by :user:`faph`. (:issue:`2504`)
- Upgrade embedded setuptools to ``67.4.0`` from ``67.1.0`` and pip to ``23.0.1`` from ``23.0`` - by :user:`gaborbernat`. (:issue:`2510`)

20.19.0

~~~~~~~~~~~~~~~~~~
- Allow platformdirs version ``3`` - by :user:`cdce8p`. (:issue:`2499`)

20.18.0

~~~~~~~~~~~~~~~~~~
- Fix broken prompt in Nushell when activating virtual environment - by :user:`kubouc`. (:issue:`2481`)
- Bump embedded pip to ``23.0`` and setuptools to ``67.1`` - by :user:`gaborbernat`. (:issue:`2489`)

20.17.1

~~~~~~~~~~~~~~~~~~
- A ``py`` or ``python`` spec means any Python rather than ``CPython`` - by :user:`gaborbernat`. (`2460 <https://github.com/pypa/virtualenv/issues/2460>`_)
- Make ``activate.nu`` respect ``VIRTUAL_ENV_DISABLE_PROMPT`` and not set the prompt if requested - by :user:`m-lima`. (`2461 <https://github.com/pypa/virtualenv/issues/2461>`_)

20.17.0

~~~~~~~~~~~~~~~~~~
- Do not use deprecated API from ``importlib.resources`` on Python 3.10 or later - by :user:`gaborbernat`. (`2448 <https://github.com/pypa/virtualenv/issues/2448>`_)
- Upgrade embedded setuptools to ``65.6.3`` from ``65.5.1`` - by :user:`gaborbernat`. (`2451 <https://github.com/pypa/virtualenv/issues/2451>`_)

20.16.7

~~~~~~~~~~~~~~~~~~
- Use parent directory of python executable for pyvenv.cfg "home" value per PEP 405 - by :user:`vfazio`. (`2440 <https://github.com/pypa/virtualenv/issues/2440>`_)
- In POSIX virtual environments, try alternate binary names if ``sys._base_executable`` does not exist - by :user:`vfazio`. (`2442 <https://github.com/pypa/virtualenv/issues/2442>`_)
- Upgrade embedded wheel to ``0.38.4`` and  pip to ``22.3.1`` from ``22.3`` and setuptools to ``65.5.1`` from
``65.5.0`` - by :user:`gaborbernat`. (`2443 <https://github.com/pypa/virtualenv/issues/2443>`_)

20.16.6

~~~~~~~~~~~~~~~~~~
- Fix selected scheme on debian derivatives for python 3.10 when ``python3-distutils`` is not installed or the ``venv`` scheme is not available - by :user:`asottile`. (`2350 <https://github.com/pypa/virtualenv/issues/2350>`_)
- Allow the test suite to pass even with the original C shell (rather than ``tcsh``) - by :user:`kulikjak`. (`2418 <https://github.com/pypa/virtualenv/issues/2418>`_)
- Fix fallback handling of downloading wheels for bundled packages - by :user:`schaap`. (`2429 <https://github.com/pypa/virtualenv/issues/2429>`_)
- Upgrade embedded setuptools to ``65.5.0`` from ``65.3.0`` and pip to ``22.3`` from ``22.2.2`` - by :user:`gaborbernat`. (`2434 <https://github.com/pypa/virtualenv/issues/2434>`_)

20.16.5

~~~~~~~~~~~~~~~~~~
- Do not turn echo off for subsequent commands in batch activators
(``activate.bat`` and ``deactivate.bat``) - by :user:`pawelszramowski`. (`2411 <https://github.com/pypa/virtualenv/issues/2411>`_)

20.16.4

~~~~~~~~~~~~~~~~~~
- Bump embed setuptools to ``65.3`` - by :user:`gaborbernat`. (`2405 <https://github.com/pypa/virtualenv/issues/2405>`_)

20.16.3

~~~~~~~~~~~~~~~~~~
- Upgrade embedded pip to ``22.2.2`` from ``22.2.1`` and setuptools to ``63.4.1`` from ``63.2.0`` - by :user:`gaborbernat`. (`2395 <https://github.com/pypa/virtualenv/issues/2395>`_)

20.16.2

~~~~~~~~~~~~~~~~~~
- Bump embedded pip from ``22.2`` to ``22.2.1`` - by :user:`gaborbernat`. (`2391 <https://github.com/pypa/virtualenv/issues/2391>`_)

20.16.1

~~~~~~~~~~~~~~~~~~
- Update Nushell activation scripts to version 0.67 - by :user:`kubouch`. (`2386 <https://github.com/pypa/virtualenv/issues/2386>`_)

20.16.0

~~~~~~~~~~~~~~~~~~
- Drop support for running under Python 2 (still can generate Python 2 environments) - by :user:`gaborbernat`. (`2382 <https://github.com/pypa/virtualenv/issues/2382>`_)
- Upgrade embedded pip to ``22.2`` from ``22.1.2`` and  setuptools to ``63.2.0`` from ``62.6.0`` -
by :user:`gaborbernat`. (`2383 <https://github.com/pypa/virtualenv/issues/2383>`_)

20.15.1

~~~~~~~~~~~~~~~~~~
- Fix the incorrect operation when ``setuptools`` plugins output something into ``stdout``. (`2335 <https://github.com/pypa/virtualenv/issues/2335>`_)
- CPython3Windows creator ignores missing ``DLLs`` dir. (`2368 <https://github.com/pypa/virtualenv/issues/2368>`_)

20.15.0

~~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``62.3.3`` from ``62.6.0`` and pip to ``22.1.2`` from ``22.0.4``
- by :user:`gaborbernat`. (`2348 <https://github.com/pypa/virtualenv/issues/2348>`_)
- Use ``shlex.quote`` instead of deprecated ``pipes.quote`` in Python 3 - by :user:`frenzymadness`. (`2351 <https://github.com/pypa/virtualenv/issues/2351>`_)
- Fix Windows PyPy 3.6 - by :user:`reksarka`. (`2363 <https://github.com/pypa/virtualenv/issues/2363>`_)

20.14.1

~~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``62.1.0`` from ``61.0.0`` - by :user:`gaborbernat`. (`2327 <https://github.com/pypa/virtualenv/issues/2327>`_)

20.14.0

~~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``61.0.0`` from ``60.10.0`` - by :user:`gaborbernat`. (`2322 <https://github.com/pypa/virtualenv/issues/2322>`_)

20.13.4

~~~~~~~~~~~~~~~~~~
- Improve performance of python startup inside created virtualenvs - by :user:`asottile`. (`2317 <https://github.com/pypa/virtualenv/issues/2317>`_)
- Upgrade embedded setuptools to ``60.10.0`` from ``60.9.3`` - by :user:`gaborbernat`. (`2320 <https://github.com/pypa/virtualenv/issues/2320>`_)

20.13.3

~~~~~~~~~~~~~~~~~~
- Avoid symlinking the contents of ``/usr`` into PyPy3.8+ virtualenvs - by :user:`stefanor`. (`2310 <https://github.com/pypa/virtualenv/issues/2310>`_)
- Bump embed pip from ``22.0.3`` to ``22.0.4`` - by :user:`gaborbernat`. (`2311 <https://github.com/pypa/virtualenv/issues/2311>`_)

20.13.2

~~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``60.9.3`` from ``60.6.0`` - by :user:`gaborbernat`. (`2306 <https://github.com/pypa/virtualenv/issues/2306>`_)

20.13.1

~~~~~~~~~~~~~~~~~~
- fix "execv() arg 2 must contain only strings" error on M1 MacOS (`2282 <https://github.com/pypa/virtualenv/issues/2282>`_)
- Upgrade embedded setuptools to ``60.5.0`` from ``60.2.0`` - by :user:`asottile`. (`2289 <https://github.com/pypa/virtualenv/issues/2289>`_)
- Upgrade embedded pip to ``22.0.3`` and setuptools to ``60.6.0`` - by :user:`gaborbernat` and :user:`asottile`. (`2294 <https://github.com/pypa/virtualenv/issues/2294>`_)

20.13.0

~~~~~~~~~~~~~~~~~~
- Fix ``AttributeError: 'bool' object has no attribute 'error'`` when creating a
Python 2.x virtualenv on macOS - by ``moreati``. (`2269 <https://github.com/pypa/virtualenv/issues/2269>`_)
- Fix ``PermissionError: [Errno 1] Operation not permitted`` when creating a
Python 2.x virtualenv on macOS/arm64 - by ``moreati``. (`2271 <https://github.com/pypa/virtualenv/issues/2271>`_)

20.12.1

~~~~~~~~~~~~~~~~~~
- Try using previous updates of ``pip``, ``setuptools`` & ``wheel``
when inside an update grace period rather than always falling back
to embedded wheels - by :user:`mayeut`. (`2265 <https://github.com/pypa/virtualenv/issues/2265>`_)
- New patch versions of ``pip``, ``setuptools`` & ``wheel`` are now
returned in the expected timeframe. - by :user:`mayeut`. (`2266 <https://github.com/pypa/virtualenv/issues/2266>`_)
- Manual upgrades of ``pip``, ``setuptools`` & ``wheel`` are
not discarded by a periodic update - by :user:`mayeut`. (`2267 <https://github.com/pypa/virtualenv/issues/2267>`_)

20.12.0

~~~~~~~~~~~~~~~~~~
- Fix ``--download`` option - by :user:`mayeut`. (`2120 <https://github.com/pypa/virtualenv/issues/2120>`_)
- Upgrade embedded setuptools to ``60.2.0`` from ``60.1.1`` - by :user:`gaborbernat`. (`2263 <https://github.com/pypa/virtualenv/issues/2263>`_)

20.11.2

~~~~~~~~~~~~~~~~~~
- Fix installation of pinned versions of ``pip``, ``setuptools`` & ``wheel`` - by :user:`mayeut`. (`2203 <https://github.com/pypa/virtualenv/issues/2203>`_)

20.11.1

~~~~~~~~~~~~~~~~~~
- Bump embed setuptools to ``60.1.1`` from ``60.1.0`` - by :user:`gaborbernat`. (`2258 <https://github.com/pypa/virtualenv/issues/2258>`_)

20.11.0

~~~~~~~~~~~~~~~~~~
- Avoid deprecation warning from py-filelock argument - by :user:`ofek`. (`2237 <https://github.com/pypa/virtualenv/issues/2237>`_)
- Upgrade embedded setuptools to ``61.1.0`` from ``58.3.0`` - by :user:`gaborbernat`. (`2240 <https://github.com/pypa/virtualenv/issues/2240>`_)
- Drop the runtime dependency of ``backports.entry-points-selectable`` - by :user:`hroncok`. (`2246 <https://github.com/pypa/virtualenv/issues/2246>`_)
- Fish: PATH variables should not be quoted when being set - by :user:`d3dave`. (`2248 <https://github.com/pypa/virtualenv/issues/2248>`_)

20.10.0

~~~~~~~~~~~~~~~~~~
- Fix broken prompt set up by activate.bat - by :user:`SiggyBar`. (`2225 <https://github.com/pypa/virtualenv/issues/2225>`_)

20.9.0

~~~~~~~~~~~~~~~~~
- Fixed path collision that could lead to a PermissionError or writing to system
directories when using PyPy3.8 - by :user:`mgorny`. (`2182 <https://github.com/pypa/virtualenv/issues/2182>`_)
- Upgrade embedded setuptools to ``58.3.0`` from ``58.1.0`` and pip to ``21.3.1`` from ``21.2.4`` - by
:user:`gaborbernat`. (`2205 <https://github.com/pypa/virtualenv/issues/2205>`_)
- Remove stray closing parenthesis in activate.bat - by :user:`SiggyBar`. (`2221 <https://github.com/pypa/virtualenv/issues/2221>`_)

20.8.1

~~~~~~~~~~~~~
- `2189 <https://github.com/pypa/virtualenv/issues/2189>`_

20.8.0

--------------------

* upgrade embedded setuptools to ``58.0.4`` from ``57.4.0`` and pip to ``21.2.4`` from ``21.2.3``
* Add nushell activation script

20.7.2

~~~~~~~~~~~~~~~~~
- Upgrade embedded pip to ``21.2.3`` from ``21.2.2`` and wheel to ``0.37.0`` from ``0.36.2`` - by :user:`gaborbernat`. (`2168 <https://github.com/pypa/virtualenv/issues/2168>`_)

20.7.1

~~~~~~~~~~~~~~~~~
- Fix unpacking dictionary items in PythonInfo.install_path (`2165 <https://github.com/pypa/virtualenv/issues/2165>`_)

20.7.0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Removed ``xonsh`` activator due to this breaking fairly often the CI and lack of support from those packages
maintainers, upstream is encouraged to continue supporting the project as a
`plugin <https://github.com/xonsh/xonsh/issues/3689>`_  - by :user:`gaborbernat`. (`#2160 <https://github.com/pypa/virtualenv/issues/2160>`_)

20.6.0

~~~~~~~~~~~~~~~~~
- Support Python interpreters without ``distutils`` (fallback to ``syconfig`` in these cases) - by :user:`gaborbernat`. (`1910 <https://github.com/pypa/virtualenv/issues/1910>`_)

20.5.0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Drop python ``3.4`` support as it has been over 2 years since EOL - by :user:`gaborbernat`. (`2141 <https://github.com/pypa/virtualenv/issues/2141>`_)

20.4.7

~~~~~~~~~~~~~~~~~
- Upgrade embedded pip to ``21.1.2`` and setuptools to ``57.0.0`` - by :user:`gaborbernat`. (`2123 <https://github.com/pypa/virtualenv/issues/2123>`_)

20.4.6

~~~~~~~~~~~~~~~~~
- Fix ``site.getsitepackages()`` broken on python2 on debian - by :user:`freundTech`. (`2105 <https://github.com/pypa/virtualenv/issues/2105>`_)

20.4.5

~~~~~~~~~~~~~~~~~
- Bump pip to ``21.1.1`` from ``21.0.1`` - by :user:`gaborbernat`. (`2104 <https://github.com/pypa/virtualenv/issues/2104>`_)
- Fix ``site.getsitepackages()`` ignoring ``--system-site-packages`` on python2 - by :user:`freundTech`. (`2106 <https://github.com/pypa/virtualenv/issues/2106>`_)

20.4.4

~~~~~~~~~~~~~~~~~
- Built in discovery class is always preferred over plugin supplied classes. (`2087 <https://github.com/pypa/virtualenv/issues/2087>`_)
- Upgrade embedded setuptools to ``56.0.0`` by :user:`gaborbernat`. (`2094 <https://github.com/pypa/virtualenv/issues/2094>`_)

20.4.3

~~~~~~~~~~~~~~~~~
- Bump embedded setuptools from ``52.0.0`` to ``54.1.2`` - by :user:`gaborbernat` (`2069 <https://github.com/pypa/virtualenv/issues/2069>`_)
- Fix PyPy3 stdlib on Windows is incorrect - by :user:`gaborbernat`. (`2071 <https://github.com/pypa/virtualenv/issues/2071>`_)

20.4.2

~~~~~~~~~~~~~~~~~
- Running virtualenv ``--upgrade-embed-wheels`` crashes - by :user:`gaborbernat`. (`2058 <https://github.com/pypa/virtualenv/issues/2058>`_)

20.4.1

~~~~~~~~~~~~~~~~~
- Bump embedded pip and setuptools packages to latest upstream supported (``21.0.1`` and ``52.0.0``) - by :user:`gaborbernat`. (`2060 <https://github.com/pypa/virtualenv/issues/2060>`_)

20.4.0

~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``51.3.3`` from ``51.1.2`` - by :user:`gaborbernat`. (`2055 <https://github.com/pypa/virtualenv/issues/2055>`_)

20.3.1

~~~~~~~~~~~~~~~~~
- Bump embed pip to ``20.3.3``, setuptools to ``51.1.1`` and wheel to ``0.36.2`` - by :user:`gaborbernat`. (`2036 <https://github.com/pypa/virtualenv/issues/2036>`_)
- Allow unfunctioning of pydoc to fail freely so that virtualenvs can be
activated under Zsh with set -e (since otherwise ``unset -f`` and
``unfunction`` exit with 1 if the function does not exist in Zsh) - by
:user:`d125q`. (`2049 <https://github.com/pypa/virtualenv/issues/2049>`_)
- Drop cached python information if the system executable is no longer present (for example when the executable is a
shim and the mapped executable is replaced - such is the case with pyenv) - by :user:`gaborbernat`. (`2050 <https://github.com/pypa/virtualenv/issues/2050>`_)

20.3.0

~~~~~~~~~~~~~~~~~
- On Windows python ``3.7+`` distributions where the exe shim is missing fallback to the old ways - by :user:`gaborbernat`. (`1986 <https://github.com/pypa/virtualenv/issues/1986>`_)
- When discovering interpreters on Windows, via the PEP-514, prefer ``PythonCore`` releases over other ones. virtualenv
is used via pip mostly by this distribution, so prefer it over other such as conda - by :user:`gaborbernat`. (`2046 <https://github.com/pypa/virtualenv/issues/2046>`_)

20.2.2

~~~~~~~~~~~~~~~~~
- Bump pip to ``20.3.1``, setuptools to ``51.0.0`` and wheel to ``0.36.1`` - by :user:`gaborbernat`. (`2029 <https://github.com/pypa/virtualenv/issues/2029>`_)

20.2.1

--------------------

No significant changes.

20.2.0

~~~~~~~~~~~~~~~~~
- Fix processing of the ``VIRTUALENV_PYTHON`` environment variable and make it
multi-value as well (separated by comma) - by :user:`pneff`. (`1998 <https://github.com/pypa/virtualenv/issues/1998>`_)

20.1.0

~~~~~~~~~~~~~~~~~
- The python specification can now take one or more values, first found is used to create the virtual environment - by
:user:`gaborbernat`. (`1995 <https://github.com/pypa/virtualenv/issues/1995>`_)

20.0.35

~~~~~~~~~~~~~~~~~~
- Bump embedded setuptools from ``50.3.0`` to ``50.3.1`` - by :user:`gaborbernat`. (`1982 <https://github.com/pypa/virtualenv/issues/1982>`_)
- After importing virtualenv passing cwd to a subprocess calls breaks with ``invalid directory`` - by :user:`gaborbernat`. (`1983 <https://github.com/pypa/virtualenv/issues/1983>`_)

20.0.34

~~~~~~~~~~~~~~~~~~
- Align with venv module when creating virtual environments with builtin creator on Windows 3.7 and later
- by :user:`gaborbernat`. (`1782 <https://github.com/pypa/virtualenv/issues/1782>`_)
- Handle Cygwin path conversion in the activation script - by :user:`davidcoghlan`. (`1969 <https://github.com/pypa/virtualenv/issues/1969>`_)

20.0.33

~~~~~~~~~~~~~~~~~~
- Fix ``None`` type error in cygwin if POSIX path in dest - by :user:`danyeaw`. (`1962 <https://github.com/pypa/virtualenv/issues/1962>`_)
- Fix Python 3.4 incompatibilities (added back to the CI) - by :user:`gaborbernat`. (`1963 <https://github.com/pypa/virtualenv/issues/1963>`_)

20.0.32

~~~~~~~~~~~~~~~~~~
- For activation scripts always use UNIX line endings (unless it's BATCH shell related) - by :user:`saytosid`. (`1818 <https://github.com/pypa/virtualenv/issues/1818>`_)
- Upgrade embedded pip to ``20.2.1`` and setuptools to ``49.4.0`` - by :user:`gaborbernat`. (`1918 <https://github.com/pypa/virtualenv/issues/1918>`_)
- Avoid spawning new windows when doing seed package upgrades in the background on Windows - by :user:`gaborbernat`. (`1928 <https://github.com/pypa/virtualenv/issues/1928>`_)
- Fix a bug that reading and writing on the same file may cause race on multiple processes. (`1938 <https://github.com/pypa/virtualenv/issues/1938>`_)
- Upgrade embedded setuptools to ``50.2.0`` and pip to ``20.2.3`` - by :user:`gaborbernat`. (`1939 <https://github.com/pypa/virtualenv/issues/1939>`_)
- Provide correct path for bash activator in cygwin or msys2 - by :user:`danyeaw`. (`1940 <https://github.com/pypa/virtualenv/issues/1940>`_)
- Relax importlib requirement to allow version<3 - by :user:`usamasadiq` (`1953 <https://github.com/pypa/virtualenv/issues/1953>`_)
- pth files were not processed on CPython2 if $PYTHONPATH was pointing to site-packages/ - by :user:`navytux`. (`1959 <https://github.com/pypa/virtualenv/issues/1959>`_) (`#1960 <https://github.com/pypa/virtualenv/issues/1960>`_)

20.0.31

~~~~~~~~~~~~~~~~~~
- Upgrade embedded pip to ``20.2.1``, setuptools to ``49.6.0`` and wheel to ``0.35.1``  - by :user:`gaborbernat`. (`1918 <https://github.com/pypa/virtualenv/issues/1918>`_)

20.0.30

~~~~~~~~~~~~~~~~~~
- Upgrade pip to ``20.2.1`` and setuptools to ``49.2.1`` - by :user:`gaborbernat`. (`1915 <https://github.com/pypa/virtualenv/issues/1915>`_)

20.0.29

~~~~~~~~~~~~~~~~~~
- Upgrade embedded pip from version ``20.1.2`` to ``20.2`` - by :user:`gaborbernat`. (`1909 <https://github.com/pypa/virtualenv/issues/1909>`_)

20.0.28

~~~~~~~~~~~~~~~~~~
- Fix test suite failing if run from system Python - by :user:`gaborbernat`. (`1882 <https://github.com/pypa/virtualenv/issues/1882>`_)
- Provide ``setup_logging`` flag to python API so that users can bypass logging handling if their application already
performs this - by :user:`gaborbernat`. (`1896 <https://github.com/pypa/virtualenv/issues/1896>`_)
- Use ``\n`` instead if ``\r\n`` as line separator for report (because Python already performs this transformation
automatically upon write to the logging pipe) - by :user:`gaborbernat`. (`1905 <https://github.com/pypa/virtualenv/issues/1905>`_)

20.0.27

~~~~~~~~~~~~~~~~~~
- No longer preimport threading to fix support for `gpython <https://pypi.org/project/pygolang/#gpython>`_ and `gevent <https://www.gevent.org/>`_ - by :user:`navytux`. (`#1897 <https://github.com/pypa/virtualenv/issues/1897>`_)
- Upgrade setuptools from ``49.2.0`` on ``Python 3.5+`` - by :user:`gaborbernat`. (`1898 <https://github.com/pypa/virtualenv/issues/1898>`_)

20.0.26

~~~~~~~~~~~~~~~~~~
- Bump dependency ``distutils >= 0.3.1`` - by :user:`gaborbernat`. (`1880 <https://github.com/pypa/virtualenv/issues/1880>`_)
- Improve periodic update handling:

- better logging output while running and enable logging on background process call (
 ``_VIRTUALENV_PERIODIC_UPDATE_INLINE`` may be used to debug behavior inline)
- fallback to unverified context when querying the PyPi for release date,
- stop downloading wheels once we reach the embedded version,

by :user:`gaborbernat`. (`1883 <https://github.com/pypa/virtualenv/issues/1883>`_)
- Do not print error message if the application exists with ``SystemExit(0)`` - by :user:`gaborbernat`. (`1885 <https://github.com/pypa/virtualenv/issues/1885>`_)
- Upgrade embedded setuptools from ``47.3.1`` to ``49.1.0`` for Python ``3.5+`` - by :user:`gaborbernat`. (`1887 <https://github.com/pypa/virtualenv/issues/1887>`_)

20.0.25

~~~~~~~~~~~~~~~~~~
- Fix that when the ``app-data`` seeders image creation fails the exception is silently ignored. Avoid two virtual environment creations to step on each others toes by using a lock while creating the base images. By :user:`gaborbernat`. (`1869 <https://github.com/pypa/virtualenv/issues/1869>`_)

20.0.24

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- How seeding mechanisms discover (and automatically keep it up to date) wheels at :ref:`wheels` - by :user:`gaborbernat`. (`1821 <https://github.com/pypa/virtualenv/issues/1821>`_)
- How distributions should handle shipping their own embedded wheels at  :ref:`distribution_wheels` - by :user:`gaborbernat`. (`1840 <https://github.com/pypa/virtualenv/issues/1840>`_)

20.0.23

~~~~~~~~~~~~~~~~~~
- Fix typo in ``setup.cfg`` - by :user:`RowdyHowell`. (`1857 <https://github.com/pypa/virtualenv/issues/1857>`_)

20.0.22

~~~~~~~~~~~~~~~~~~
- Relax ``importlib.resources`` requirement to also allow version 2 - by :user:`asottile`. (`1846 <https://github.com/pypa/virtualenv/issues/1846>`_)
- Upgrade embedded setuptools to ``44.1.1`` for python 2 and ``47.1.1`` for python3.5+ - by :user:`gaborbernat`. (`1855 <https://github.com/pypa/virtualenv/issues/1855>`_)

20.0.21

~~~~~~~~~~~~~~~~~~
- Fix virtualenv fails sometimes when run concurrently, ``--clear-app-data`` conflicts with :option:`clear` flag when
abbreviation is turned on. To bypass this while allowing abbreviated flags on the command line we had to move it to
:option:`reset-app-data` - by :user:`gaborbernat`. (`1824 <https://github.com/pypa/virtualenv/issues/1824>`_)
- Upgrade embedded ``setuptools`` to ``46.4.0`` from ``46.1.3`` on Python ``3.5+``, and ``pip`` from ``20.1`` to ``20.1.1`` - by :user:`gaborbernat`. (`1827 <https://github.com/pypa/virtualenv/issues/1827>`_)
- Seeder pip now correctly handles ``--extra-search-dir`` - by :user:`frenzymadness`. (`1834 <https://github.com/pypa/virtualenv/issues/1834>`_)

20.0.20

~~~~~~~~~~~~~~~~~~
- Fix download fails with python 3.4 - by :user:`gaborbernat`. (`1809 <https://github.com/pypa/virtualenv/issues/1809>`_)
- Fixes older CPython2 versions use ``_get_makefile_filename`` instead of ``get_makefile_filename`` on ``sysconfig`` - by :user:`ianw`. (`1810 <https://github.com/pypa/virtualenv/issues/1810>`_)
- Fix download is ``True`` by default - by :user:`gaborbernat`. (`1813 <https://github.com/pypa/virtualenv/issues/1813>`_)
- Fail ``app-data`` seed operation when wheel download fails and better error message - by :user:`gaborbernat`. (`1814 <https://github.com/pypa/virtualenv/issues/1814>`_)

20.0.19

~~~~~~~~~~~~~~~~~~
- Fix generating a Python 2 environment from Python 3 creates invalid python activator - by :user:`gaborbernat`. (`1776 <https://github.com/pypa/virtualenv/issues/1776>`_)
- Fix pinning seed packages via ``app-data`` seeder raised ``Invalid Requirement`` - by :user:`gaborbernat`. (`1779 <https://github.com/pypa/virtualenv/issues/1779>`_)
- Do not stop interpreter discovery if we fail to find the system interpreter for a executable during discovery
- by :user:`gaborbernat`. (`1781 <https://github.com/pypa/virtualenv/issues/1781>`_)
- On CPython2 POSIX platforms ensure ``syconfig.get_makefile_filename`` exists within the virtual environment (this is used by some c-extension based libraries - e.g. numpy - for building) - by :user:`gaborbernat`. (`1783 <https://github.com/pypa/virtualenv/issues/1783>`_)
- Better handling of options :option:`copies` and :option:`symlinks`. Introduce priority of where the option is set
to follow the order: CLI, env var, file, hardcoded. If both set at same level prefers copy over symlink. - by
:user:`gaborbernat`. (`1784 <https://github.com/pypa/virtualenv/issues/1784>`_)
- Upgrade pip for Python ``2.7`` and ``3.5+`` from ``20.0.2`` to ``20.1`` - by :user:`gaborbernat`. (`1793 <https://github.com/pypa/virtualenv/issues/1793>`_)
- Fix CPython is not discovered from Windows registry, and discover pythons from Windows registry in decreasing order
by version - by :user:`gaborbernat`. (`1796 <https://github.com/pypa/virtualenv/issues/1796>`_)
- Fix symlink detection for creators - by :user:`asottile` (`1803 <https://github.com/pypa/virtualenv/issues/1803>`_)

20.0.18

~~~~~~~~~~~~~~~~~~
- Importing setuptools before cli_run could cause our python information query to fail due to setuptools patching
``distutils.dist.Distribution`` - by :user:`gaborbernat`. (`1771 <https://github.com/pypa/virtualenv/issues/1771>`_)

20.0.17

~~~~~~~~~~~~~~~~~~
- Extend environment variables checked for configuration to also check aliases (e.g. setting either
``VIRTUALENV_COPIES`` or ``VIRTUALENV_ALWAYS_COPY`` will work) - by :user:`gaborbernat`. (`1763 <https://github.com/pypa/virtualenv/issues/1763>`_)

20.0.16

~~~~~~~~~~~~~~~~~~
- Allow seed wheel files inside the :option:`extra-search-dir` folders that do not have ``Requires-Python``
metadata specified, these are considered compatible with all python versions - by :user:`gaborbernat`. (`1757 <https://github.com/pypa/virtualenv/issues/1757>`_)

20.0.15

~~~~~~~~~~~~~~~~~~
- Upgrade embedded setuptools to ``46.1.3`` from ``46.1.1`` - by :user:`gaborbernat`. (`1752 <https://github.com/pypa/virtualenv/issues/1752>`_)

20.0.14

~~~~~~~~~~~~~~~~~~
- Fix discovery of interpreter by name from ``PATH`` that does not match a spec format - by :user:`gaborbernat`. (`1746 <https://github.com/pypa/virtualenv/issues/1746>`_)

20.0.13

~~~~~~~~~~~~~~~~~~
- Do not fail when the pyc files is missing for the host Python 2 - by :user:`gaborbernat`. (`1738 <https://github.com/pypa/virtualenv/issues/1738>`_)
- Support broken Packaging pythons that put the include headers under distutils pattern rather than sysconfig one
- by :user:`gaborbernat`. (`1739 <https://github.com/pypa/virtualenv/issues/1739>`_)

20.0.12

~~~~~~~~~~~~~~~~~~
- Fix relative path discovery of interpreters - by :user:`gaborbernat`. (`1734 <https://github.com/pypa/virtualenv/issues/1734>`_)

20.0.11

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- :ref:`supports <compatibility-requirements>` details now explicitly what Python installations we support
- by :user:`gaborbernat`. (`1714 <https://github.com/pypa/virtualenv/issues/1714>`_)

20.0.10

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Document requirements (pip + index server) when installing via pip under the installation section - by
:user:`gaborbernat`. (`1618 <https://github.com/pypa/virtualenv/issues/1618>`_)
- Document installing from non PEP-518 systems - :user:`gaborbernat`. (`1619 <https://github.com/pypa/virtualenv/issues/1619>`_)
- Document installing latest unreleased version from Github - :user:`gaborbernat`. (`1620 <https://github.com/pypa/virtualenv/issues/1620>`_)

20.0.9

~~~~~~~~~~~~~~~~~
- ``pythonw.exe`` works as ``python.exe`` on Windows - by :user:`gaborbernat`. (`1686 <https://github.com/pypa/virtualenv/issues/1686>`_)
- Handle legacy loaders for virtualenv import hooks used to patch distutils configuration load - by :user:`gaborbernat`. (`1690 <https://github.com/pypa/virtualenv/issues/1690>`_)
- Support for python 2 platforms that store landmark files in ``platstdlib`` over ``stdlib`` (e.g. RHEL) - by
:user:`gaborbernat`. (`1694 <https://github.com/pypa/virtualenv/issues/1694>`_)
- Upgrade embedded setuptools to ``45.3.0`` from ``45.2.0`` for Python ``3.5+``  - by :user:`gaborbernat`. (`1699 <https://github.com/pypa/virtualenv/issues/1699>`_)

20.0.8

~~~~~~~~~~~~~~~~~
- Having `distutils configuration <https://docs.python.org/3/install/index.html#distutils-configuration-files>`_
files that set ``prefix`` and ``install_scripts`` cause installation of packages in the wrong location -
by :user:`gaborbernat`. (`1663 <https://github.com/pypa/virtualenv/issues/1663>`_)
- Fix ``PYTHONPATH`` being overridden on Python 2 — by :user:`jd`. (`1673 <https://github.com/pypa/virtualenv/issues/1673>`_)
- Fix list configuration value parsing from config file or environment variable - by :user:`gaborbernat`. (`1674 <https://github.com/pypa/virtualenv/issues/1674>`_)
- Fix Batch activation script shell prompt to display environment name by default - by :user:`spetafree`. (`1679 <https://github.com/pypa/virtualenv/issues/1679>`_)
- Fix startup on Python 2 is slower for virtualenv - this was due to setuptools calculating it's working set distribution
- by :user:`gaborbernat`. (`1682 <https://github.com/pypa/virtualenv/issues/1682>`_)
- Fix entry points are not populated for editable installs on Python 2 due to setuptools working set being calculated
before ``easy_install.pth`` runs - by :user:`gaborbernat`. (`1684 <https://github.com/pypa/virtualenv/issues/1684>`_)
- Fix ``attr:`` import fails for setuptools - by :user:`gaborbernat`. (`1685 <https://github.com/pypa/virtualenv/issues/1685>`_)

20.0.7

~~~~~~~~~~~~~~~~~
- Disable distutils fixup for python 3 until `pypa/pip 7778 <https://github.com/pypa/pip/issues/7778>`_ is fixed and
released - by :user:`gaborbernat`. (`1669 <https://github.com/pypa/virtualenv/issues/1669>`_)

20.0.6

~~~~~~~~~~~~~~~~~
- Fix global site package always being added with bundled macOs python framework builds - by :user:`gaborbernat`. (`1561 <https://github.com/pypa/virtualenv/issues/1561>`_)
- Fix generated scripts use host version info rather than target - by :user:`gaborbernat`. (`1600 <https://github.com/pypa/virtualenv/issues/1600>`_)
- Fix circular prefix reference with single elements (accept these as if they were system executables, print a info about
them referencing themselves) - by :user:`gaborbernat`. (`1632 <https://github.com/pypa/virtualenv/issues/1632>`_)
- Handle the case when the application data folder is read-only:

- the application data folder is now controllable via :option:`app-data`,
- ``clear-app-data`` now cleans the entire application data folder, not just the ``app-data`` seeder path,
- check if the application data path passed in does not exist or is read-only, and fallback to a temporary directory,
- temporary directory application data is automatically cleaned up at the end of execution,
- :option:`symlink-app-data` is always ``False`` when the application data is temporary

by :user:`gaborbernat`. (`1640 <https://github.com/pypa/virtualenv/issues/1640>`_)
- Fix PyPy 2 builtin modules are imported from standard library, rather than from builtin  - by :user:`gaborbernat`. (`1652 <https://github.com/pypa/virtualenv/issues/1652>`_)
- Fix creation of entry points when path contains spaces - by :user:`nsoranzo`. (`1660 <https://github.com/pypa/virtualenv/issues/1660>`_)
- Fix relative paths for the zipapp (for python ``3.7+``) - by :user:`gaborbernat`. (`1666 <https://github.com/pypa/virtualenv/issues/1666>`_)

20.0.5

~~~~~~~~~~~~~~~~~
- Add macOs Python 2 Framework support (now we test it with the CI via brew) - by :user:`gaborbernat` (`1561 <https://github.com/pypa/virtualenv/issues/1561>`_)
- Fix losing of libpypy-c.so when the pypy executable is a symlink - by :user:`asottile` (`1614 <https://github.com/pypa/virtualenv/issues/1614>`_)
- Discover python interpreter in a case insensitive manner - by :user:`PrajwalM2212` (`1624 <https://github.com/pypa/virtualenv/issues/1624>`_)
- Fix cross interpreter support when the host python sets ``sys.base_executable`` based on ``__PYVENV_LAUNCHER__`` -
by :user:`cjolowicz` (`1643 <https://github.com/pypa/virtualenv/issues/1643>`_)

20.0.4

~~~~~~~~~~~~~~~~~
- Allow the use of ``/`` as pathname component separator on Windows - by ``vphilippon`` (`1582 <https://github.com/pypa/virtualenv/issues/1582>`_)
- Lower minimal version of six required to 1.9 - by ``ssbarnea`` (`1606 <https://github.com/pypa/virtualenv/issues/1606>`_)

20.0.3

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Document a programmatic API as ``from virtualenv import cli_run`` under :ref:`programmatic_api` -
by :user:`gaborbernat`. (`1585 <https://github.com/pypa/virtualenv/issues/1585>`_)

20.0.2

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Add link to the `legacy documentation <https://virtualenv.pypa.io/en/legacy>`_ for the changelog by :user:`jezdez`. (`#1547 <https://github.com/pypa/virtualenv/issues/1547>`_)
- Fine tune the documentation layout: default width of theme, allow tables to wrap around, soft corners for code snippets
- by :user:`pradyunsg`. (`1548 <https://github.com/pypa/virtualenv/issues/1548>`_)

20.0.1

~~~~~~~~~~~~~~~~~
- Virtual environments created via relative path on Windows creates bad console executables - by :user:`gaborbernat`. (`1552 <https://github.com/pypa/virtualenv/issues/1552>`_)
- Seems sometimes venvs created set their base executable to themselves; we accept these without question, so we handle
virtual environments as system pythons causing issues - by :user:`gaborbernat`. (`1553 <https://github.com/pypa/virtualenv/issues/1553>`_)


v20.0.0. (2020-02-10)
---------------------

Improved Documentation - 20.0.0.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Fixes typos, repeated words and inconsistent heading spacing. Rephrase parts of the development documentation and CLI
documentation. Expands shorthands like ``env var`` and ``config`` to their full forms. Uses descriptions from respective
documentation, for projects listed in ``related links`` - by :user:`pradyunsg`. (`1540 <https://github.com/pypa/virtualenv/issues/1540>`_)

20.0.0b2

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Create the first iteration of the new documentation - by :user:`gaborbernat`. (`1465 <https://github.com/pypa/virtualenv/issues/1465>`_)
- Project readme is now of type MarkDown instead of reStructuredText - by :user:`gaborbernat`. (`1531 <https://github.com/pypa/virtualenv/issues/1531>`_)

20.0.0b1

----------------------

* First public release of the rewrite. Everything is brand new and just added.
* ``--download`` defaults to ``False``
* No longer replaces builtin ``site`` module with `custom version baked within virtualenv code itself <https://github.com/pypa/virtualenv/blob/legacy/virtualenv_embedded/site.py>`_. A simple shim module is used to fix up things on Python 2 only.

.. warning::

The current virtualenv is the second iteration of implementation. From version ``0.8`` all the way to ``16.7.9``
we numbered the first iteration. Version ``20.0.0b1`` is a complete rewrite of the package, and as such this release
history starts from there. The old changelog is still available in the
`legacy branch documentation <https://virtualenv.pypa.io/en/legacy/changes.html>`_.

Links

• PyPI: https://pypi.org/project/virtualenv
• Changelog: https://data.safetycli.com/changelogs/virtualenv/

[pyup-bot]

Closing this in favor of #718