Don't request a generator if you know it won't exist

commands/generate.py

@@ -33,6 +33,7 @@ GENERATORS = utils.LazyLoadedDict(get_generator)
 def generate(bot,channel,nick,generator,count="1"):
 	if generator not in GENERATORS_LIST:
 		bot.say(channel,"{}: Invalid generator!".format(nick))
+		return
 	count = int(count)
 	res = [GENERATORS[generator]() for x in range(count)]
 	if generator!="idea":