Meet Will.

Will is the friendliest, easiest-to-teach bot you've ever used. He works on hipchat, in rooms and 1-1 chats.

He makes teaching your chat bot this simple:

@respond_to("hi")
def say_hello(self, message):
    self.say("oh, hello!", message=message)

Will was first built by Steven Skoczen while in the Greenkahuna Skunkworks, and has been contributed to by lots of folks.

Will has docs, including a quickstart and lots of screenshots at: http://skoczen.github.io/will/

Check them out!