Update pycodestyle to 2.6.0

[pyup-bot]

This PR updates pycodestyle from 2.4.0 to 2.6.0.

Changelog

2.6.0

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

Announcements:

* Anthony Sottile (asottile) joined the team as a core developer. :tada:

Changes:

* E306: fix detection inside ``async def``.  PR 929.
* E301: fix regression disallowing decorated one-liners.  PR 927.
* E714: fix false positive with chained ``is not``.  PR 931.

2.6.0a1

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

New checks:

* E225: require whitespace around ``and`` ``in`` ``is`` and ``or``.  PR 847.

Changes:

* E117: fix indentation using tabs by treating as 8-space indents.  PR 837.
* E721: fix false positive with names containg ``istype``.  PR 850.
* E741: allow ``l`` as a named argument in a function call.  PR 853.
* E302: fix false-negative with decorated functions.  PR 859.
* W504: ellipsis (``...``) is no longer treated as a binary operator.  PR 875.
* E402: allow ``with``, ``if``, ``elif``, ``else`` to guard imports.  PR 834.
* Add support for assignment expressions ``:=`` (PEP 572).  PR 879.
* Add support for positional-only arguments ``/`` (PEP 570).  PR 872, 918.
* Add support for python 3.8.
* Add support for matrix multiplication operator ` (PEP 465).  PR 897.
* Support visual indent for continuation lines for ``with`` / ``assert`` /
``raise``.  PR 912.
* E302: allow two blank lines after a block of one-liners.  PR 913.
* E302: allow two-and-fewer newlines at the top of the file.  PR 919.

2.5.0

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

New checks:

* E117: Over-indented code blocks
* W505: Maximum doc-string length only when configured with --max-doc-length

Changes:

* Remove support for EOL Python 2.6 and 3.3. PR 720.
* Add E117 error for over-indented code blocks.
* Allow W605 to be silenced by ` noqa` and fix the position reported by W605
* Allow users to omit blank lines around one-liner definitions of classes and
functions
* Include the function return annotation (``->``) as requiring surrounding
whitespace only on Python 3
* Verify that only names can follow ``await``. Previously we allowed numbers
and strings.
* Add support for Python 3.7
* Fix detection of annotated argument defaults for E252
* Correct the position reported by W504

Links

• PyPI: https://pypi.org/project/pycodestyle
• Changelog: https://pyup.io/changelogs/pycodestyle/
• Docs: https://pycodestyle.readthedocs.io/

[codecov]

Codecov Report

Merging #89 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #89   +/-   ##
=======================================
  Coverage   59.91%   59.91%           
=======================================
  Files           3        3           
  Lines         247      247           
=======================================
  Hits          148      148           
  Misses         99       99           

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[pyup-bot]

Closing this in favor of #127