我应该担心__init_subclass__开始的方式吗？

Question

我在项目中使用init_subclass，当我在代码首次在解释器中运行时遇到内置方法时，我有点犹豫，而没有通过实例化包含类或子类直接引用列举。有人可以告诉我发生了什么事，并向我指出其安全使用的任何示例吗？class Timer():    def __init__(self):        pass    def __init_subclass__(cls):        print('Runner.', cls)        print('Timer Dictionary :', Timer.__dict__.keys())        # print(Timer.__init_subclass__()) # Forbidden fruit...        passclass Event(Timer):    print("I'll take my own bathroom selfies...thanks anyway.")    def __init__(self):        print('This is nice, meeting on a real date.')if __name__ == '__main__': # a good place for a breakpoint        date = Event()        date编辑 - - - - - - - - - - - - - - - - - - - - - - - - - --根据收到的解释，将原始代码重新构建为有用的东西。class Timer():    subclasses = {}    def __init__(self):        pass    def __init_subclass__(cls, **kwargs):        print('Runner.', cls)        print('Timer Dictionary :', Timer.__dict__.keys())        # print(Timer.__init_subclass__()) # Forbidden fruit...        super().__init_subclass__(**kwargs)        cls.subclasses[cls] = []class Event(Timer):    print("I'll take my own bathroom selfies...thanks anyway.")    def __init__(self):        print('This is nice, meeting on a real date.')        if self.__class__ in super().subclasses:            # get the index and link the two            super().subclasses[self.__class__].append(self)if __name__ == '__main__': # a good place for a breakpoint    date = Event()    date    duty = Event()    duty    print(Timer.subclasses)