Update pytest to 4.1.1

[pyup-bot]

This PR updates pytest from 4.1.0 to 4.1.1.

Changelog

4.1.1

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

Bug Fixes
---------

- `2256 <https://github.com/pytest-dev/pytest/issues/2256>`_: Show full repr with ``assert a==b`` and ``-vv``.


- `3456 <https://github.com/pytest-dev/pytest/issues/3456>`_: Extend Doctest-modules to ignore mock objects.


- `4617 <https://github.com/pytest-dev/pytest/issues/4617>`_: Fixed ``pytest.warns`` bug when context manager is reused (e.g. multiple parametrization).


- `4631 <https://github.com/pytest-dev/pytest/issues/4631>`_: Don't rewrite assertion when ``__getattr__`` is broken



Improved Documentation
----------------------

- `3375 <https://github.com/pytest-dev/pytest/issues/3375>`_: Document that using ``setup.cfg`` may crash other tools or cause hard to track down problems because it uses a different parser than ``pytest.ini`` or ``tox.ini`` files.



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

- `4602 <https://github.com/pytest-dev/pytest/issues/4602>`_: Uninstall ``hypothesis`` in regen tox env.

Links

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