def log_decorator():
    def log_real_decorator(f):
        @wraps(f)
        def wrapper(self,*args, **kw):
            print "I am the decorator, I know that self is", self, "and I can do whatever I want with it!"
            print "I also got other args:", args, kw
            f(*args, **kw)

        return wrapper
    return log_real_decorator

class Foo(object):
    @log_decorator

    def meth(self):
        print "I am the method, my self is", self


f = Foo()
f.meth()