def __xor__(self, other):
        if not isinstance(other, Set):
            if not isinstance(other, Iterable):
                return NotImplemented
            other = self._from_iterable(other)
        return (other - self) | (other - self)

    # Sets are not hashable by default, but subclasses can change this
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/_abcoll.py/Set.__xor__/swapped operands of `-`