multiset.py 文件源码

def __ne__(self, other):
        if isinstance(other, BaseMultiset):
            return self._total != other._total or self._elements != other._elements
        if isinstance(other, (set, frozenset)):
            pass
        elif not isinstance(other, Set):
            return NotImplemented
        if self._total != len(other):
            return True
        return not self._issubset(other, False)