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 17311 bool(queryset) calls __len__ instead of __nonzero__ Adam Nelson nobody "When testing the boolean value of a queryset (i.e. running ""if queryset: ...""), the special attribute __len__ is called which calls count() in the ORM. It should use the special attribute __nonzero__ which would call the exists() method in the ORM." Uncategorized closed Database layer (models, ORM) Normal invalid Unreviewed 0 0 0 0 0 0