There's a new version of pytest available.
You are currently using 3.4.0. I have updated it to 3.4.1

These links might come in handy: PyPI | Changelog | Repo | Homepage

Changelog

3.4.1

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

Bug Fixes

• Move import of doctest.UnexpectedException to top-level to avoid possible
  errors when using --pdb. (1810 <https://github.com/pytest-dev/pytest/issues/1810>_)

• Added printing of captured stdout/stderr before entering pdb, and improved a
  test which was giving false negatives about output capturing. (3052 <https://github.com/pytest-dev/pytest/issues/3052>_)

• Fix ordering of tests using parametrized fixtures which can lead to fixtures
  being created more than necessary. (3161 <https://github.com/pytest-dev/pytest/issues/3161>_)

• Fix bug where logging happening at hooks outside of "test run" hooks would
  cause an internal error. (3184 <https://github.com/pytest-dev/pytest/issues/3184>_)

• Detect arguments injected by unittest.mock.patch decorator correctly when
  pypi mock.patch is installed and imported. (3206 <https://github.com/pytest-dev/pytest/issues/3206>_)

• Errors shown when a pytest.raises() with match= fails are now cleaner
  on what happened: When no exception was raised, the "matching '...'" part got
  removed as it falsely implies that an exception was raised but it didn't
  match. When a wrong exception was raised, it's now thrown (like
  pytest.raised() without match= would) instead of complaining about
  the unmatched text. (3222 <https://github.com/pytest-dev/pytest/issues/3222>_)

• Fixed output capture handling in doctests on macOS. (985 <https://github.com/pytest-dev/pytest/issues/985>_)

Improved Documentation

• Add Sphinx parameter docs for match and message args to
  pytest.raises. (3202 <https://github.com/pytest-dev/pytest/issues/3202>_)

Trivial/Internal Changes

• pytest has changed the publication procedure and is now being published to
  PyPI directly from Travis. (3060 <https://github.com/pytest-dev/pytest/issues/3060>_)

• Rename ParameterSet._for_parameterize() to _for_parametrize() in
  order to comply with the naming convention. (3166 <https://github.com/pytest-dev/pytest/issues/3166>_)

• Skip failing pdb/doctest test on mac. (985 <https://github.com/pytest-dev/pytest/issues/985>_)

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖