Tox

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

Bugfixes
^^^^^^^^

- ``tox --showconfig`` no longer tries to interpolate '%' signs.
`1585 <https://github.com/tox-dev/tox/issues/1585>`_

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

Bugfixes
^^^^^^^^

- Respect attempts to change ``PATH`` via ``setenv`` - by :user:`aklajnert`.
`1423 <https://github.com/tox-dev/tox/issues/1423>`_
- Fix parsing of architecture in python interpreter name. - by :user:`bruchar1`
`1542 <https://github.com/tox-dev/tox/issues/1542>`_
- Prevent exception when command is empty. - by :user:`bruchar1`
`1544 <https://github.com/tox-dev/tox/issues/1544>`_
- Fix irrelevant Error message for invalid argument when running outside a directory with tox support files by :user:`nkpro2000sr`.
`1547 <https://github.com/tox-dev/tox/issues/1547>`_


Features
^^^^^^^^

- Allow parallel mode without arguments. - by :user:`ssbarnea`
`1418 <https://github.com/tox-dev/tox/issues/1418>`_
- Allow generative section name expansion. - by :user:`bruchar1`
`1545 <https://github.com/tox-dev/tox/issues/1545>`_
- default to passing the env var PIP_EXTRA_INDEX_URL by :user:`georgealton`.
`1561 <https://github.com/tox-dev/tox/issues/1561>`_


Documentation
^^^^^^^^^^^^^

- Improve documentation about config by adding tox environment description at start - by :user:`stephenfin`.
`1573 <https://github.com/tox-dev/tox/issues/1573>`_

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

Bugfixes
^^^^^^^^

- Exclude virtualenv dependency versions with known
regressions (20.0.[0-7]) - by :user:`webknjaz`.
`1537 <https://github.com/tox-dev/tox/issues/1537>`_
- Fix ``tox -h`` and ``tox --hi`` shows an error when run outside a directory with tox support files by :user:`nkpro2000sr`.
`1539 <https://github.com/tox-dev/tox/issues/1539>`_
- Fix ValueError on ``tox -l`` for a ``tox.ini`` file that does not contain an
``envlist`` definition. - by :user:`jquast`.
`1343 <https://github.com/tox-dev/tox/issues/1343>`_

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

Features
^^^^^^^^

- Add ``--discover`` (fallback to ``TOX_DISCOVER`` environment variable via path separator) to inject python executables
to try as first step of a discovery - note the executable still needs to match the environment by :user:`gaborbernat`.
`1526 <https://github.com/tox-dev/tox/issues/1526>`_

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

Bugfixes
^^^^^^^^

- Bump minimal six version needed to avoid using one incompatible with newer
virtualenv. - by :user:`ssbarnea`
`1519 <https://github.com/tox-dev/tox/issues/1519>`_
- Avoid pypy test failure due to undefined printout var. - by :user:`ssbarnea`
`1521 <https://github.com/tox-dev/tox/issues/1521>`_


Features
^^^^^^^^

- Add ``interrupt_timeout`` and ``terminate_timeout`` that configure delay between SIGINT, SIGTERM and SIGKILL when tox is interrupted. - by :user:`sileht`
`1493 <https://github.com/tox-dev/tox/issues/1493>`_
- Add ``HTTP_PROXY``, ``HTTPS_PROXY`` and ``NO_PROXY`` to default passenv. - by :user:`pfmoore`
`1498 <https://github.com/tox-dev/tox/issues/1498>`_

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

Bugfixes
^^^^^^^^

- Relax importlib requirement to allow either version 0 or 1 - by :user:`chyzzqo2`
`1476 <https://github.com/tox-dev/tox/issues/1476>`_

Miscellaneous
^^^^^^^^^^^^^

- Clarify legacy setup.py error message: python projects should commit to a strong consistency of message regarding packaging. We no-longer tell people to add a setup.py to their already configured pep-517 project, otherwise it could imply that pyproject.toml isn't as well supported and recommended as it truly is - by :user:`graingert`
`1478 <https://github.com/tox-dev/tox/issues/1478>`_