# WORKING CODE
mapping = {}

def saying(text):
        def decorator(function):
            mapping[text] = function
            return function
        return decorator

@saying("hi")
def hi():
    print "hello there"

@saying("thanks")
@saying("gracias")
def thanks():
    print "you're welcome"

mapping["hi"]() #running this line will print "hello there"
mapping["thanks"]() #running this line will print "you're welcome"

#NON-WORKING CODE:
class politeModule(object):
    def __init__(self):
        self.mapping = {}

    @saying("hi")
    def hi(self):
        print "hello there"

    @saying("thanks")
    @saying("gracias")
    def thanks(self):
        print "you're welcome"

module = politeModule()
module.mapping["hi"]()
module.mapping["thanks"]()