id,summary,reporter,owner,description,type,status,component,version,severity,resolution,keywords,cc,stage,has_patch,needs_docs,needs_tests,needs_better_patch,easy,ui_ux 19576,Use `six.with_metaclass` uniformously accross code base,Simon Charette,nobody,Sometimes `object` is inherited twice when it's not needed. Simple patch that passes on Python 2.7.3 and 3.2 with SQlite to be uploaded.,Cleanup/optimization,closed,Python 3,dev,Normal,fixed,six,,Ready for checkin,1,0,0,0,0,0