Update pytest to 3.9.2

[pyup-bot]

This PR updates pytest from 3.9.1 to 3.9.2.

Changelog

3.9.2

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

Bug Fixes
---------

- `2909 <https://github.com/pytest-dev/pytest/issues/2909>`_: Improve error message when a recursive dependency between fixtures is detected.


- `3340 <https://github.com/pytest-dev/pytest/issues/3340>`_: Fix logging messages not shown in hooks ``pytest_sessionstart()`` and ``pytest_sessionfinish()``.


- `3533 <https://github.com/pytest-dev/pytest/issues/3533>`_: Fix unescaped XML raw objects in JUnit report for skipped tests


- `3691 <https://github.com/pytest-dev/pytest/issues/3691>`_: Python 2: safely format warning message about passing unicode strings to ``warnings.warn``, which may cause
surprising ``MemoryError`` exception when monkey patching ``warnings.warn`` itself.


- `4026 <https://github.com/pytest-dev/pytest/issues/4026>`_: Improve error message when it is not possible to determine a function's signature.


- `4177 <https://github.com/pytest-dev/pytest/issues/4177>`_: Pin ``setuptools>=40.0`` to support ``py_modules`` in ``setup.cfg``


- `4179 <https://github.com/pytest-dev/pytest/issues/4179>`_: Restore the tmpdir behaviour of symlinking the current test run.


- `4192 <https://github.com/pytest-dev/pytest/issues/4192>`_: Fix filename reported by ``warnings.warn`` when using ``recwarn`` under python2.

Links

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