def __iter__(self):
        return iter(self._scan())
An unordered sequence specific comparison. It asserts that
dataset/ETHPy150Open coleifer/walrus/walrus/containers.py/ZSet.__iter__--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.3/django/utils/unittest/case.py/TestCase.assertItemsEqual