scaleconf.py

    def join_channel(self, message):
        yield self.redis.sadd(self.members_key, message.user())
        yield self.reply_to(
            message, 'You have joined Smitter! SMS "-" to leave, \
                        "? <num>" to invite, "@" to ask locations, \
                        "# <topic>" to broadcast subject')

    def leave_channel(self, message):
            yield self.redis.srem(self.members_key, message.user())
            yield self.reply_to(
                message, 'You have left Smitter. SMS "+" to join.')
    
    def thing(self, message):
        handlers = {
            '+': self.join_channel,
            '-': self.leave_channel,
            ...
        }
        
        handlers[message['content']](message)