You can do stuff like this, Java devs in particular get freaked out by this sort of thing in my experience. (Forgive the formatting) import foo foo.auth("admi

You can do stuff like this, Java devs in particular get freaked out by this sort of thing in my experience. (Forgive the formatting) import foo foo.auth("admin", "badpass") returns False def new_auth(user, pass): . . . .return True foo.auth = new_auth foo.auth("admin", "badpass") now returns True