When should I use classmethod vs staticmethod in Python?

Can you explain the difference between classmethod and staticmethod in Python?

Sure! A classmethod is bound to the class and not the instance of the class. It can modify class state that applies across all instances. A staticmethod, on the other hand, does not access or modify the class or instance state. It's just a regular function defined inside a class.

When would I choose to use a classmethod over a staticmethod?

You would use a classmethod when you need to access or modify class-level data, like a factory method that creates instances of the class. Use a staticmethod when you don't need to access class or instance data, just a utility function.

Can you give me an example of each?

Of course! For classmethod, you might have a method that returns a new instance of the class based on some input. For staticmethod, you could have a method that performs a calculation unrelated to the class or instance.

Thanks! That clarifies a lot. Is there a performance difference between the two?

Generally, there's no significant performance difference. The choice should be based on whether you need access to the class or instance data.