edx/edx-platform — pull request #343 by sarina (2013-07-08 12:04:22+00:00)
Title: Ignore Pylint R0921

:information_desk_person: We should allow ourselves to provide abstract classes without invoking them

This change will keep this file in line with XBlock (https://github.com/edx/XBlock/pull/39)

@nedbat @wedaly this OK?