Returns a class method for function.
A class method receives the class as implicit first argument, just like an instance method receives the instance. To declare a class method, use this idiom:
class C: @classmethod def f(cls, arg1, arg2, ...): ...
@classmethod form is a function decorator — see def for
It can be called either on the class (such as
C.f()) or on an
instance (such as
C().f()). The instance is ignored except for its
class. If a class method is called for a derived class, the derived
class object is passed as the implied first argument.
Class methods are different than C++ or Java static methods. If you want those, see staticmethod.
For more information on class methods, consult the documentation on the standard type hierarchy in chapter 3 of the [Python Reference Manual] (at the bottom). (New in version 2.2.) (Changed in version 2.4: Function decorator syntax added.)