Update pytest to 4.0.1

[pyup-bot]

This PR updates pytest from 3.10.1 to 4.0.1.

Changelog

4.0.1

=========================

Bug Fixes
---------

- `3952 <https://github.com/pytest-dev/pytest/issues/3952>`_: Display warnings before "short test summary info" again, but still later warnings in the end.


- `4386 <https://github.com/pytest-dev/pytest/issues/4386>`_: Handle uninitialized exceptioninfo in repr/str.


- `4393 <https://github.com/pytest-dev/pytest/issues/4393>`_: Do not create ``.gitignore``/``README.md`` files in existing cache directories.


- `4400 <https://github.com/pytest-dev/pytest/issues/4400>`_: Rearrange warning handling for the yield test errors so the opt-out in 4.0.x correctly works.


- `4405 <https://github.com/pytest-dev/pytest/issues/4405>`_: Fix collection of testpaths with ``--pyargs``.


- `4412 <https://github.com/pytest-dev/pytest/issues/4412>`_: Fix assertion rewriting involving ``Starred`` + side-effects.


- `4425 <https://github.com/pytest-dev/pytest/issues/4425>`_: Ensure we resolve the absolute path when the given ``--basetemp`` is a relative path.



Trivial/Internal Changes
------------------------

- `4315 <https://github.com/pytest-dev/pytest/issues/4315>`_: Use ``pkg_resources.parse_version`` instead of ``LooseVersion`` in minversion check.


- `4440 <https://github.com/pytest-dev/pytest/issues/4440>`_: Adjust the stack level of some internal pytest warnings.

4.0.0

=========================

Removals
--------

- `3737 <https://github.com/pytest-dev/pytest/issues/3737>`_: **RemovedInPytest4Warnings are now errors by default.**

Following our plan to remove deprecated features with as little disruption as
possible, all warnings of type ``RemovedInPytest4Warnings`` now generate errors
instead of warning messages.

**The affected features will be effectively removed in pytest 4.1**, so please consult the
`Deprecations and Removals <https://docs.pytest.org/en/latest/deprecations.html>`__
section in the docs for directions on how to update existing code.

In the pytest ``4.0.X`` series, it is possible to change the errors back into warnings as a stop
gap measure by adding this to your ``pytest.ini`` file:

.. code-block:: ini

   [pytest]
   filterwarnings =
       ignore::pytest.RemovedInPytest4Warning

But this will stop working when pytest ``4.1`` is released.

**If you have concerns** about the removal of a specific feature, please add a
comment to `4348 <https://github.com/pytest-dev/pytest/issues/4348>`__.


- `4358 <https://github.com/pytest-dev/pytest/issues/4358>`_: Remove the ``::()`` notation to denote a test class instance in node ids.

Previously, node ids that contain test instances would use ``::()`` to denote the instance like this::

   test_foo.py::Test::()::test_bar

The extra ``::()`` was puzzling to most users and has been removed, so that the test id becomes now::

   test_foo.py::Test::test_bar

This change could not accompany a deprecation period as is usual when user-facing functionality changes because
it was not really possible to detect when the functionality was being used explicitly.

The extra ``::()`` might have been removed in some places internally already,
which then led to confusion in places where it was expected, e.g. with
``--deselect`` (`4127 <https://github.com/pytest-dev/pytest/issues/4127>`_).

Test class instances are also not listed with ``--collect-only`` anymore.



Features
--------

- `4270 <https://github.com/pytest-dev/pytest/issues/4270>`_: The ``cache_dir`` option uses ``$TOX_ENV_DIR`` as prefix (if set in the environment).

This uses a different cache per tox environment by default.



Bug Fixes
---------

- `3554 <https://github.com/pytest-dev/pytest/issues/3554>`_: Fix ``CallInfo.__repr__`` for when the call is not finished yet.

Links

• PyPI: https://pypi.org/project/pytest
• Changelog: https://pyup.io/changelogs/pytest/
• Homepage: https://docs.pytest.org/en/latest/

[coveralls]

Coverage remained the same at 92.683% when pulling 375adc9 on pyup-update-pytest-3.10.1-to-4.0.1 into 5c06903 on master.

[coveralls]

Coverage remained the same at 92.683% when pulling 375adc9 on pyup-update-pytest-3.10.1-to-4.0.1 into 5c06903 on master.

[coveralls]

Coverage remained the same at 92.683% when pulling 375adc9 on pyup-update-pytest-3.10.1-to-4.0.1 into 5c06903 on master.