Bump pytest from 3.6.3 to 4.0.1

[dependabot-preview[bot]]

Bumps pytest from 3.6.3 to 4.0.1.

Changelog

*Sourced from [pytest's changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst).* > pytest 4.0.1 (2018-11-23) > ========================= > > Bug Fixes > --------- > > - `#3952 `_: Display warnings before "short test summary info" again, but still later warnings in the end. > > > - `#4386 `_: Handle uninitialized exceptioninfo in repr/str. > > > - `#4393 `_: Do not create ``.gitignore``/``README.md`` files in existing cache directories. > > > - `#4400 `_: Rearrange warning handling for the yield test errors so the opt-out in 4.0.x correctly works. > > > - `#4405 `_: Fix collection of testpaths with ``--pyargs``. > > > - `#4412 `_: Fix assertion rewriting involving ``Starred`` + side-effects. > > > - `#4425 `_: Ensure we resolve the absolute path when the given ``--basetemp`` is a relative path. > > > > Trivial/Internal Changes > ------------------------ > > - `#4315 `_: Use ``pkg_resources.parse_version`` instead of ``LooseVersion`` in minversion check. > > > - `#4440 `_: Adjust the stack level of some internal pytest warnings. > > > pytest 4.0.0 (2018-11-13) > ========================= > > Removals > -------- > > - `#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 > ... (truncated)

Commits

- [`be3b8fc`](https://github.com/pytest-dev/pytest/commit/be3b8fc9c1417243b9567bd31992c0c42f0bf898) Fix warnings summary header appearing twice - [`16b15af`](https://github.com/pytest-dev/pytest/commit/16b15af6245e38624679fcdc86a4f40d0ffec294) Preparing release version 4.0.1 - [`23e4447`](https://github.com/pytest-dev/pytest/commit/23e444792216b12d12fa072225bb5d389bf374fe) Merge pull request [#4399](https://github-redirect.dependabot.com/pytest-dev/pytest/issues/4399) from blueyed/summary - [`0cf45ee`](https://github.com/pytest-dev/pytest/commit/0cf45ee18a48061163cfd82c1edf1d6292d2a2a4) Display "short test summary info" after (main) warnings again - [`0b73d6d`](https://github.com/pytest-dev/pytest/commit/0b73d6d4f5217102176129336f424d216ee7f937) Merge pull request [#4444](https://github-redirect.dependabot.com/pytest-dev/pytest/issues/4444) from RonnyPfannschmidt/fix-4386-2 - [`e4ae33d`](https://github.com/pytest-dev/pytest/commit/e4ae33d5928a437957678b8aca438c8816cc7d80) Merge pull request [#4394](https://github-redirect.dependabot.com/pytest-dev/pytest/issues/4394) from blueyed/cache-ensure-files - [`c5c728c`](https://github.com/pytest-dev/pytest/commit/c5c728c8bcbc07268874c8944ee956fae9c1350c) Fix test/improve tests a bit in py27 - [`9ae8429`](https://github.com/pytest-dev/pytest/commit/9ae8429a21ed83bb668c94023e933fa4112d3831) Use a more specific exception type in test_raises_repr_inflight - [`abaf496`](https://github.com/pytest-dev/pytest/commit/abaf496fe805b3508f860a8c7e331a5e7b06b4c9) Merge pull request [#4440](https://github-redirect.dependabot.com/pytest-dev/pytest/issues/4440) from nicoddemus/config-warning-stacklevel - [`b71bd9b`](https://github.com/pytest-dev/pytest/commit/b71bd9b300b6dbab25adcc4a0d9db14763011e72) fix [#4386](https://github-redirect.dependabot.com/pytest-dev/pytest/issues/4386) - handle uninitialized exceptioninfo in repr/str - Additional commits viewable in [compare view](https://github.com/pytest-dev/pytest/compare/3.6.3...4.0.1)

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[dependabot-preview[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.