How to use Python decorator to implement singleton pattern

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Decorator implementation: def warpper (clsObject): def inner (* args, * * kwargs): if not hasattr (clsObject, "ins"): insObject = clsObject (* args, * * kwargs) setattr (clsObject, "ins", insObject) return getattr (clsObject "ins") return inner@warpperclass Singleton: passif _ _ name__ = = "_ _ main__": ins = Singleton () print (id (ins)) ins = Singleton () print (id (ins)) these are all the contents of the article "how to use Python decorator to implement singleton pattern" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!