python元类冲突的问题

class Meta1(type):

    def __new__(mcs, *args, **kwargs):

        return super(Meta1, mcs).__new__(mcs, *args, **kwargs)

# 变化部分：Meta2继承Meta1

class Meta2(Meta1):

    def __new__(mcs, *args, **kwargs):

        return super(Meta2, mcs).__new__(mcs, *args, **kwargs)

class Body(metaclass=Meta1):

    pass

class Head(metaclass=Meta2):

    pass

class Human(Body, Head):

    pass