jcrocholl/pep8 — pull request #313 by hongqn (2014-08-08 03:20:26+00:00)
Title: allow use # noqa to disable E721 warning

Sometimes `isinstance()` is not suitable for comparing types. For
example, someone may want to make sure an object is exact instance of a
type, not instance of its subclasses.

This patch allows to use `# noqa` comment to disable warning in this case.