[issue17459] unittest.assertItemsEqual reports wrong order

Changes by R. David Murray : -- resolution: -> duplicate stage: -> committed/rejected superseder: -> unittest's assertItemsEqual() method gives wrong order in error output ___ Python tracker ___

[issue17459] unittest.assertItemsEqual reports wrong order

Matthijs van der Vleuten added the comment: Duplicate of 14832. -- status: open -> closed ___ Python tracker ___ ___ Python-bugs-list

[issue17459] unittest.assertItemsEqual reports wrong order

New submission from Matthijs van der Vleuten: When calling assertItemsEqual(first,second), if the items in a and b differ, the AssertionError treats second as the first sequence and first as the second sequence. Repro code: >>> from unittest.case import TestCase >>> class Foo(TestCase): ...