def assertNotEqual(self, first, second, msg=None):
        if not first != second:
            msg = self._formatMessage(msg, '%s == %s' % (safe_repr(first),
                                                           safe_repr(second)))
            raise self.failureException(msg)
Fail if the two objects are equal as determined by the '=='
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/django/utils/unittest/case.py/TestCase.assertNotEqual