show how to write a class method in Python

class_method.py

class Hello():

    def world(self):
        return "world"

    world = classmethod(world)


    def foo():
        return "foo"

    foo = staticmethod(foo)

    @classmethod
    def bar():
        return "bar"


print Hello.world()
print type(Hello.world)
print type(classmethod)

print Hello.foo()

print Hello.bar()