Update tox to 3.21.3

[pyup-bot]

This PR updates tox from 3.19.0 to 3.21.3.

Changelog

### 3.21.3 ``` -------------------- Bugfixes ^^^^^^^^ - Fix a killed tox (via SIGTERM) leaving the commands subprocesses running by handling it as if it were a KeyboardInterrupt - by :user:`dajose` `1772 <https://github.com/tox-dev/tox/issues/1772>`_ ``` ### 3.21.2 ``` -------------------- Bugfixes ^^^^^^^^ - Newer coverage tools update the ``COV_CORE_CONTEXT`` environment variable, add it to the list of environment variables that can change in our pytest plugin - by :user:`gaborbernat`. `1854 <https://github.com/tox-dev/tox/issues/1854>`_ ``` ### 3.21.1 ``` -------------------- Bugfixes ^^^^^^^^ - Fix regression that broke using install_command in config replacements - by :user:`jayvdb` `1777 <https://github.com/tox-dev/tox/issues/1777>`_ - Fix regression parsing posargs default containing colon. - by :user:`jayvdb` `1785 <https://github.com/tox-dev/tox/issues/1785>`_ Features ^^^^^^^^ - Prevent .tox in envlist - by :user:`jayvdb` `1684 <https://github.com/tox-dev/tox/issues/1684>`_ Miscellaneous ^^^^^^^^^^^^^ - Enable building tox with ``setuptools_scm`` 4 and 5 by :user:`hroncok` `1799 <https://github.com/tox-dev/tox/issues/1799>`_ ``` ### 3.21.0 ``` -------------------- Bugfixes ^^^^^^^^ - Fix the false ``congratulations`` message that appears when a ``KeyboardInterrupt`` occurs during package installation. - by :user:`gnikonorov` `1453 <https://github.com/tox-dev/tox/issues/1453>`_ - Fix ``platform`` support for ``install_command``. - by :user:`jayvdb` `1464 <https://github.com/tox-dev/tox/issues/1464>`_ - Fixed regression in v3.20.0 that caused escaped curly braces in setenv to break usage of the variable elsewhere in tox.ini. - by :user:`jayvdb` `1690 <https://github.com/tox-dev/tox/issues/1690>`_ - Prevent ``{}`` and require ``{:`` is only followed by ``}``. - by :user:`jayvdb` `1711 <https://github.com/tox-dev/tox/issues/1711>`_ - Raise ``MissingSubstitution`` on access of broken ini setting. - by :user:`jayvdb` `1716 <https://github.com/tox-dev/tox/issues/1716>`_ Features ^^^^^^^^ - Allow \{ and \} in default of {env:key:default}. - by :user:`jayvdb` `1502 <https://github.com/tox-dev/tox/issues/1502>`_ - Allow {posargs} in setenv. - by :user:`jayvdb` `1695 <https://github.com/tox-dev/tox/issues/1695>`_ - Allow {/} to refer to os.sep. - by :user:`jayvdb` `1700 <https://github.com/tox-dev/tox/issues/1700>`_ - Make parsing [testenv] sections in setup.cfg official. - by :user:`mauvilsa` `1727 <https://github.com/tox-dev/tox/issues/1727>`_ - Relax importlib requirement to allow 3.0.0 or any newer version - by :user:`pkolbus` `1763 <https://github.com/tox-dev/tox/issues/1763>`_ Documentation ^^^^^^^^^^^^^ - Document more info about using ``platform`` setting. - by :user:`prakhargurunani` `1144 <https://github.com/tox-dev/tox/issues/1144>`_ - Replace ``indexserver`` in documentation with environment variables - by :user:`ziima`. `1357 <https://github.com/tox-dev/tox/issues/1357>`_ - Document that the ``passenv`` environment setting is case insensitive. - by :user:`gnikonorov` `1534 <https://github.com/tox-dev/tox/issues/1534>`_ ``` ### 3.20.1 ``` -------------------- Bugfixes ^^^^^^^^ - Relax importlib requirement to allow version<3 - by :user:`usamasadiq` `1682 <https://github.com/tox-dev/tox/issues/1682>`_ ``` ### 3.20.0 ``` -------------------- Bugfixes ^^^^^^^^ - Allow hyphens and empty factors in generative section name. - by :user:`tyagdit` `1636 <https://github.com/tox-dev/tox/issues/1636>`_ - Support for PEP517 in-tree build backend-path key in ``get-build-requires``. - by :user:`nizox` `1654 <https://github.com/tox-dev/tox/issues/1654>`_ - Allow escaping curly braces in setenv. - by :user:`mkenigs` `1656 <https://github.com/tox-dev/tox/issues/1656>`_ Features ^^^^^^^^ - Support for comments within ``setenv`` and environment files via the ``files|`` prefix. - by :user:`gaborbernat` `1667 <https://github.com/tox-dev/tox/issues/1667>`_ ```

Links

- PyPI: https://pypi.org/project/tox - Changelog: https://pyup.io/changelogs/tox/ - Docs: http://tox.readthedocs.org

[pyup-bot]

Closing this in favor of #226