def issuperset(self, iterable):
        other = type(self)(iterable)

        if len(self) < len(other):
            return False

        for m in itertools_filterfalse(self._members.__contains__,
                                       iter(other._members.keys())):
            return False
        return True
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/util/_collections.py/IdentitySet.issuperset/original