Update flake8 to 3.7.7

[pyup-bot]

This PR updates flake8 from 3.4.1 to 3.7.7.

Changelog

3.7.7

-------------------

You can view the `3.7.7 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix crahes in plugins causing ``flake8`` to hang while unpickling errors (See
also `GitLab!308`_, `GitLab505`_)


.. all links
.. _3.7.7 milestone:
 https://gitlab.com/pycqa/flake8/milestones/30

.. issue links
.. _GitLab505:
 https://gitlab.com/pycqa/flake8/issues/505

.. merge request links
.. _GitLab!308:
 https://gitlab.com/pycqa/flake8/merge_requests/308

3.7.6

-------------------

You can view the `3.7.6 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix ``--per-file-ignores`` for multi-letter error codes (See also
`GitLab!303`_, `GitLab507`_)

- Improve flake8 speed when only 1 filename is passed (See also `GitLab!305`_)


.. all links
.. _3.7.6 milestone:
 https://gitlab.com/pycqa/flake8/milestones/29

.. issue links
.. _GitLab507:
 https://gitlab.com/pycqa/flake8/issues/507

.. merge request links
.. _GitLab!303:
 https://gitlab.com/pycqa/flake8/merge_requests/303
.. _GitLab!305:
 https://gitlab.com/pycqa/flake8/merge_requests/305

3.7.5

-------------------

You can view the `3.7.5 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix reporting of pyflakes "referenced before assignment" error (See also
`GitLab!301`_, `GitLab503`_)


.. all links
.. _3.7.5 milestone:
 https://gitlab.com/pycqa/flake8/milestones/28

.. issue links
.. _GitLab503:
 https://gitlab.com/pycqa/flake8/issues/503

.. merge request links
.. _GitLab!301:
 https://gitlab.com/pycqa/flake8/merge_requests/301

3.7.4

-------------------

You can view the `3.7.4 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix performance regression with lots of ``per-file-ignores`` and errors
(See also `GitLab!299`_, `GitLab501`_)


.. all links
.. _3.7.4 milestone:
 https://gitlab.com/pycqa/flake8/milestones/27

.. issue links
.. _GitLab501:
 https://gitlab.com/pycqa/flake8/issues/501

.. merge request links
.. _GitLab!299:
 https://gitlab.com/pycqa/flake8/merge_requests/299

3.7.3

-------------------

You can view the `3.7.3 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix imports of ``typing`` in python 3.5.0 / 3.5.1 (See also `GitLab!294`_,
`GitLab498`_)

- Fix ``flake8 --statistics`` (See also `GitLab!295`_, `GitLab499`_)

- Gracefully ignore ``flake8-per-file-ignores`` plugin if installed (See also
`GitLab!297`_, `GitLab495`_)

- Improve error message for malformed ``per-file-ignores`` (See also
`GitLab!298`_, `GitLab489`_)


.. all links
.. _3.7.3 milestone:
 https://gitlab.com/pycqa/flake8/milestones/26

.. issue links
.. _GitLab489:
 https://gitlab.com/pycqa/flake8/issues/489
.. _GitLab495:
 https://gitlab.com/pycqa/flake8/issues/495
.. _GitLab498:
 https://gitlab.com/pycqa/flake8/issues/498
.. _GitLab499:
 https://gitlab.com/pycqa/flake8/issues/499

.. merge request links
.. _GitLab!294:
 https://gitlab.com/pycqa/flake8/merge_requests/294
.. _GitLab!295:
 https://gitlab.com/pycqa/flake8/merge_requests/295
.. _GitLab!297:
 https://gitlab.com/pycqa/flake8/merge_requests/297
.. _GitLab!298:
 https://gitlab.com/pycqa/flake8/merge_requests/298

3.7.2

-------------------

You can view the `3.7.2 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix broken ``flake8 --diff`` (regressed in 3.7.0) (See also `GitLab!292`_,
`GitLab490`_)

- Fix typo in plugin exception reporting (See also `GitLab!275`_,
`GitLab491`_)

- Fix ``AttributeError`` while attempting to use the legacy api (regressed in
3.7.0) (See also `GitLab!293`_, `GitLab497`_)

.. all links
.. _3.7.2 milestone:
 https://gitlab.com/pycqa/flake8/milestones/25

.. issue links
.. _GitLab490:
 https://gitlab.com/pycqa/flake8/issues/490
.. _GitLab491:
 https://gitlab.com/pycqa/flake8/issues/491
.. _GitLab497:
 https://gitlab.com/pycqa/flake8/issues/497

.. merge request links
.. _GitLab!292:
 https://gitlab.com/pycqa/flake8/merge_requests/292
.. _GitLab!275:
 https://gitlab.com/pycqa/flake8/merge_requests/275
.. _GitLab!293:
 https://gitlab.com/pycqa/flake8/merge_requests/293

3.7.1

-------------------

You can view the `3.7.1 milestone`_ on GitLab for more details.

Bugs Fixed
~~~~~~~~~~

- Fix capitalized filenames in ``per-file-ignores`` setting (See also
`GitLab!290`_, `GitLab488`_)

.. all links
.. _3.7.1 milestone:
 https://gitlab.com/pycqa/flake8/milestones/24

.. issue links
.. _GitLab488:
 https://gitlab.com/pycqa/flake8/issues/488

.. merge request links
.. _GitLab!290:
 https://gitlab.com/pycqa/flake8/merge_requests/290

3.7.0

-------------------

You can view the `3.7.0 milestone`_ on GitLab for more details.

New Dependency Information
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Add dependency on ``entrypoints`` >= 0.3, < 0.4 (See also `GitLab!264`_,
`GitLab!288`_)

- Pyflakes has been updated to >= 2.1.0, < 2.2.0 (See also `GitLab!283`_,
`GitLab!285`_)

- pycodestyle has been updated to >= 2.5.0, < 2.6.0 (See also `GitLab!287`_)

Features
~~~~~~~~

- Add support for ``per-file-ignores`` (See also `GitLab!259`_, `GitLab156`_,
`GitLab!281`_, `GitLab471`_)

- Enable use of ``float`` and ``complex`` option types (See also `GitLab!261`_,
`GitLab452`_)

- Improve startup performance by switching from ``pkg_resources`` to
``entrypoints`` (See also `GitLab!264`_)

- Add metadata for use through the `pre-commit`_ git hooks framework (See also
`GitLab!268`_, `GitLab!284`_)

- Allow physical line checks to return more than one result (See also
`GitLab!269`_)

- Allow `` noqa:X123`` comments without space between the colon and codes
list (See also `GitLab!273`_, `GitLab470`_)

- Remove broken and unused ``flake8.listen`` plugin type (See also
`GitLab!274`_, `GitLab480`_)

.. all links
.. _3.7.0 milestone:
 https://gitlab.com/pycqa/flake8/milestones/23
.. _pre-commit:
 https://pre-commit.com/

.. issue links
.. _GitLab156:
 https://gitlab.com/pycqa/flake8/issues/156
.. _GitLab452:
 https://gitlab.com/pycqa/flake8/issues/452
.. _GitLab470:
 https://gitlab.com/pycqa/flake8/issues/470
.. _GitLab471:
 https://gitlab.com/pycqa/flake8/issues/471
.. _GitLab480:
 https://gitlab.com/pycqa/flake8/issues/480

.. merge request links
.. _GitLab!259:
 https://gitlab.com/pycqa/flake8/merge_requests/259
.. _GitLab!261:
 https://gitlab.com/pycqa/flake8/merge_requests/261
.. _GitLab!264:
 https://gitlab.com/pycqa/flake8/merge_requests/264
.. _GitLab!268:
 https://gitlab.com/pycqa/flake8/merge_requests/268
.. _GitLab!269:
 https://gitlab.com/pycqa/flake8/merge_requests/269
.. _GitLab!273:
 https://gitlab.com/pycqa/flake8/merge_requests/273
.. _GitLab!274:
 https://gitlab.com/pycqa/flake8/merge_requests/274
.. _GitLab!281:
 https://gitlab.com/pycqa/flake8/merge_requests/281
.. _GitLab!283:
 https://gitlab.com/pycqa/flake8/merge_requests/283
.. _GitLab!284:
 https://gitlab.com/pycqa/flake8/merge_requests/284
.. _GitLab!285:
 https://gitlab.com/pycqa/flake8/merge_requests/285
.. _GitLab!287:
 https://gitlab.com/pycqa/flake8/merge_requests/287
.. _GitLab!288:
 https://gitlab.com/pycqa/flake8/merge_requests/288

3.6.0

-------------------

You can view the `3.6.0 milestone`_ on GitLab for more details.

New Dependency Information
~~~~~~~~~~~~~~~~~~~~~~~~~~

- pycodestyle has been updated to >= 2.4.0, < 2.5.0 (See also `GitLab381`_,
`GitLab415`_, `GitLab!212`_, `GitLab!230`_, `GitLab!231`_)

- Pyflakes has been updated to >= 2.0.0, < 2.1.0 (See also `GitLab422`_,
`GitLab!239`_)

- flake8 requires python 2.x >= 2.7 or python 3.x >= 3.4 (See also
`GitLab!225`_)

Features
~~~~~~~~

- Add ``paths`` to allow local plugins to exist outside of ``sys.path`` (See
also `GitLab379`_, `GitLab!211`_)

- Copy ``setup.cfg`` files to the temporary git hook execution directory (See
also `GitLab!215`_)

- Only skip a file if `` flake8: noqa`` is on a line by itself (See also
`GitLab453`_, `GitLab!219`_)

- Provide a better user experience for broken plugins (See also `GitLab!221`_)

- Report ``E902`` when a file passed on the command line does not exist (See
also `GitLab405`_, `GitLab!227`_)

- Add ``--extend-ignore`` for extending the default ``ignore`` instead of
overriding it (See also `GitLab365`_, `GitLab!233`_)

Bugs Fixed
~~~~~~~~~~

- Respect a formatter's newline setting when printing (See also `GitLab!222`_)

- Fix leaking of processes in the legacy api (See also `GitLab410`_,
`GitLab!228`_)

- Fix a ``SyntaxWarning`` for an invalid escape sequence (See also
`GitLab!244`_)

- Fix ``DeprecationWarning`` due to import of ``abc`` classes from the
``collections`` module (See also `GitLab!249`_)

- Defer ``setuptools`` import to improve flake8 startup time (See also
`GitLab!250`_)

- Fix inconsistent line endings in ``FileProcessor.lines`` when running under
python 3.x (See also `GitLab457`_, `GitLab!255`_)


.. all links
.. _3.6.0 milestone:
 https://gitlab.com/pycqa/flake8/milestones/21

.. issue links
.. _GitLab365:
 https://gitlab.com/pycqa/flake8/issues/365
.. _GitLab379:
 https://gitlab.com/pycqa/flake8/issues/379
.. _GitLab381:
 https://gitlab.com/pycqa/flake8/issues/381
.. _GitLab405:
 https://gitlab.com/pycqa/flake8/issues/405
.. _GitLab410:
 https://gitlab.com/pycqa/flake8/issues/410
.. _GitLab415:
 https://gitlab.com/pycqa/flake8/issues/415
.. _GitLab422:
 https://gitlab.com/pycqa/flake8/issues/422
.. _GitLab453:
 https://gitlab.com/pycqa/flake8/issues/453
.. _GitLab457:
 https://gitlab.com/pycqa/flake8/issues/457

.. merge request links
.. _GitLab!211:
 https://gitlab.com/pycqa/flake8/merge_requests/211
.. _GitLab!212:
 https://gitlab.com/pycqa/flake8/merge_requests/212
.. _GitLab!215:
 https://gitlab.com/pycqa/flake8/merge_requests/215
.. _GitLab!219:
 https://gitlab.com/pycqa/flake8/merge_requests/219
.. _GitLab!221:
 https://gitlab.com/pycqa/flake8/merge_requests/221
.. _GitLab!222:
 https://gitlab.com/pycqa/flake8/merge_requests/222
.. _GitLab!225:
 https://gitlab.com/pycqa/flake8/merge_requests/225
.. _GitLab!227:
 https://gitlab.com/pycqa/flake8/merge_requests/227
.. _GitLab!228:
 https://gitlab.com/pycqa/flake8/merge_requests/228
.. _GitLab!230:
 https://gitlab.com/pycqa/flake8/merge_requests/230
.. _GitLab!231:
 https://gitlab.com/pycqa/flake8/merge_requests/231
.. _GitLab!233:
 https://gitlab.com/pycqa/flake8/merge_requests/233
.. _GitLab!239:
 https://gitlab.com/pycqa/flake8/merge_requests/239
.. _GitLab!244:
 https://gitlab.com/pycqa/flake8/merge_requests/244
.. _GitLab!249:
 https://gitlab.com/pycqa/flake8/merge_requests/249
.. _GitLab!250:
 https://gitlab.com/pycqa/flake8/merge_requests/250
.. _GitLab!255:
 https://gitlab.com/pycqa/flake8/merge_requests/255

3.5.0

-------------------

You can view the `3.5.0 milestone`_ on GitLab for more details.

New Dependency Information
~~~~~~~~~~~~~~~~~~~~~~~~~~

- Allow for PyFlakes 1.6.0 (See also `GitLab359`_)

- Start using new PyCodestyle checks for bare excepts and ambiguous identifier
(See also `GitLab361`_)

Features
~~~~~~~~

- Print out information about configuring VCS hooks (See also `GitLab335`_)

- Allow users to develop plugins "local" to a repository without using
setuptools. See our documentation on local plugins for more information.
(See also `GitLab357`_)

Bugs Fixed
~~~~~~~~~~

- Catch and helpfully report ``UnicodeDecodeError``\ s when parsing
configuration files. (See also `GitLab358`_)


.. all links
.. _3.5.0 milestone:
 https://gitlab.com/pycqa/flake8/milestones/20

.. issue links
.. _GitLab335:
 https://gitlab.com/pycqa/flake8/issues/335
.. _GitLab357:
 https://gitlab.com/pycqa/flake8/issues/357
.. _GitLab358:
 https://gitlab.com/pycqa/flake8/issues/358
.. _GitLab359:
 https://gitlab.com/pycqa/flake8/issues/359
.. _GitLab361:
 https://gitlab.com/pycqa/flake8/issues/361

.. merge request links

Links

• PyPI: https://pypi.org/project/flake8
• Changelog: https://pyup.io/changelogs/flake8/
• Repo: https://gitlab.com/pycqa/flake8