Decorators broken down. Useful if needing to access the class or instance of a method from within a decorator, while it still needs to be a classmethod or staticmethod.

decoration.py

# Decoration broken down. Useful if needing to access the class or instance of a method from within a decorator, while it still needs to be a classmethod or staticmethod.

from functools import partial


class StaticMethod(object):
    def __init__(self, function):
        self._function = function
    def __get__(self, instance, class_):
        print("Static Method! Instance:", instance, "Class:", class_)
        return self._function


class ClassMethod(StaticMethod):
    def __get__(self, instance, class_):
        print("Class Method! Instance:", instance, "Class:", class_)
        return partial(self._function, class_)


class Method(StaticMethod):
    def __get__(self, instance, class_):
        print("Method! Instance:", instance, "Class:", class_)
        return partial(self._function, instance)


if __name__ == "__main__":

    class Test(object):
        @StaticMethod
        def test_staticmethod():
            print("hello from static method")

        @ClassMethod
        def test_classmethod(cls):
            print("hello from class method:", cls)
        
        @Method
        def test_method(self):
            print("hello from method:", self)

test = Test()
test.test_staticmethod()
test.test_classmethod()
test.test_method()