test.py

from twisted.internet import reactor
from twisted.words.protocols import irc
from twisted.internet.protocol import ClientFactory

SERVER = "irc.freenode.net"
NICKNAME = 'the_username'
PASSWORD = 'password'


class Bot(irc.IRCClient):

    nickname = NICKNAME
    password = PASSWORD

    def dataReceived(self, data):
        print(data)
        irc.IRCClient.dataReceived(self, data)

    def signedOn(self):
        print("\033[91m\n\nYOLO, I was signed on to the server!!!\n\033[0m")
        self.quit()

    def connectionLost(self, reason):
        irc.IRCClient.connectionLost(self, reason)
        reactor.stop()


class BotFactory(ClientFactory):
    protocol = Bot

if __name__ == "__main__":
    reactor.connectTCP(SERVER, 6667, BotFactory())
    reactor.run()