bot.py

import asyncio
from asyncirc import irc

bot = irc.connect("chat.freenode.net", 6667, use_ssl=False)
bot.register("NativeBot", "NativeBot", "NativeBot")
bot.join("#nativebot")


@bot.on("message")
def incoming_message(parsed, user, target, text):
    bot.say(target, "{}: you said {}".format(user.nick, text))


if __name__ == '__main__':
    asyncio.get_event_loop().run_forever()