#classmethod

Description: Wraps a method as a class method. See also the staticmethod function.

def classmethod(fn):
    '''
    Wraps a method as a class method

    :param fn: The method to wrap
    :return: The wrapped method
    '''

The implicit first argument of a class method is the class itself, just as instance methods receive the instance as the first argument. To declare a class method, the conventional approach is:

class C:
    @classmethod
    def fn(cls, arg1, arg2):
        pass

Example:

class Cat:

    @classmethod
    def speak(cls):
        print('Meow meow meow')

# Call via class
Cat.speak()

# Call via instance
cat = Cat()
cat.speak()