flake8 extension to lint for the import order in Python files

 A flake8 and Pylama plugin that checks the ordering of Python imports. It
 does not check anything else about the imports. Merely that they are
 grouped and ordered correctly.
 .
 In general stdlib comes first, then 3rd party, then local packages, and
 that each group is individually alphabetized, however this depends on
 the style used. Flake8-Import-Order supports a number of styles and is
 extensible allowing for custom styles.