What is the python metaclass

In this issue, the editor will bring you about what is the python metaclass. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Metaclass is the class that creates the class, type-> class-> object, and the metaclass can control the instantiation of the class.

Class TestMeta (type):''the class whose parent is type is metaclass' 'def _ _ new__ (cls, * args, * * kwargs): print (' TestMeta new class') return super (). _ _ new__ (cls, * args, * * kwargs) class User (metaclass=TestMeta): def _ init__ (self) Var_name): self.var_name = var_namedef _ str__ (self): return self.var_nameif _ _ name__ = ='_ _ main__': var_user = User ('tom') print (var_user) # TestMeta new class # tom above is what the editor shares with you what is python metaclass If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.