def test_cleanFailureRemovesTracebackInPython3(self):
    '\n        L{failure.Failure.cleanFailure} sets the C{__traceback__} attribute of\n        the exception to L{None} in Python 3.\n        '
    f = getDivisionFailure()
    self.assertIsNotNone(f.tb)
    self.assertIs(f.value.__traceback__, f.tb)
    f.cleanFailure()
    self.assertIsNone(f.value.__traceback__)
L{failure.Failure.cleanFailure} sets the C{__traceback__} attribute of
the exception to L{None} in Python 3.
def test_cleanFailureRemovesTracebackInPython3(self):
    '\n        L{failure.Failure.cleanFailure} sets the C{__traceback__} attribute of\n        the exception to L{None} in Python 3.\n        '
    f = getDivisionFailure()
    self.assertIsNotNone(f.tb)
    self.assertIs(f.value.__traceback__, f.tb)
    f.cleanFailure()
    self.assertIsNone(f.value.__traceback__)