python - 运行时错误 : maximum recursion depth exceeded using default hash method

Question

为什么我得到“return self.__hash__()RuntimeError: maximum recursion depth exceeded”当我使用默认的散列方法时？

This causes the error:

def __hash__(self):
    return self.__hash__()

This works:

def __hash__(self):
    return self.name.__hash__()

Answer 1

当然，您通过从自身调用方法进入无限递归:

def method_name(self):
    return self.method_name()

您可能想调用基类的方法？

def __hash__(self):
    return super(ClassName, self).__hash__()