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 28269,Fix Model._meta._property_names to work with attributes that raise AttributeError,Adam Johnson,nobody,"As reported on the mailing list at https://groups.google.com/forum/#!msg/django-developers/ClQ0mCJ-a6Y/FOYTz98yBgAJ , the optimization I did in model __init__ in commit d2a26c1a90e837777dabdf3d67ceec4d2a70fb86 did not copy in a try/except AttributeError. This fails because some third party apps install ""class only"" descriptors that raise AttributeError when not accessed in an instance, for example: https://github.com/kmmbvnr/django-fsm/blob/2d2eaee/django_fsm/__init__.py#L225 _property_names should be changed to try/except AttributeError when accessing the attributes on the class, and we should add a test to prevent regression.",Bug,closed,"Database layer (models, ORM)",1.11,Release blocker,fixed,,,Accepted,1,0,0,0,0,0