when I need to use @staticmethod and @classmethod in python programming? [duplicate]

Question

I like to know when I need to use staticmethod or classmethod decorators. can you please guide me simple code, so that can understand usage of staticmethod and classmethod.

What about when the function is static, or when it is a method attached to a class... — willeM_ Van Onsem
– willeM_ Van Onsem, Commented Oct 18, 2017 at 15:38
You never really need to use staticmethod not classmethod, although, classmethod is actually useful sometimes — juanpa.arrivillaga
– juanpa.arrivillaga, Commented Oct 18, 2017 at 15:53

blue note · Accepted Answer · 2017-10-18 15:39:35Z

1

When you call a method of a python object, the object itself is automatically passed as the first parameters (usually named self)

You can change this in two ways

annotate with @classmethod: now, instead of the object, the class of the object is automatically passed as first argument
annotate with @staticmethod: now, no extra argument is passed, just the ones you provided. Just like a normal python function

Classmethods are commonly used for alternative constructors. Static methods are plain functions that are put inside the class namespace, just for logical grouping.

answered Oct 18, 2017 at 15:39

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