Basic IRC bot boilerplate.

irc_bot.py

import time

from twisted.words.protocols import irc
from twisted.internet import reactor, protocol, ssl

NETWORK = 'irc.network.com'
PORT = 6697
CHANNEL = 'channel'
NICKNAME = 'bot'


class IRCClient(irc.IRCClient):
    nickname = NICKNAME

    def connectionMade(self):
        irc.IRCClient.connectionMade(self)
        print("[connected at %s]" % time.asctime(time.localtime(time.time())))

    def connectionLost(self, reason):
        irc.IRCClient.connectionLost(self, reason)
        print("[disconnected at %s]" % time.asctime(time.localtime(time.time())))

    def signedOn(self):
        self.join(self.factory.channel)

    def joined(self, channel):
        print("[Joined %s Channel]" % channel)

    def privmsg(self, user, channel, msg):
        user = user.split('!', 1)[0]
        print("<%s> %s" % (user, msg))

        # Check to see if they're sending me a private message
        if channel == self.nickname:
            msg = "It isn't nice to whisper!  Play nice with the group."
            self.msg(user, msg)
            return

        # Otherwise check to see if it is a message directed at me
        if msg.startswith(self.nickname + ":"):
            msg = "%s: I am a spam bot" % user
            self.msg(channel, msg)
            print("<%s> %s" % (self.nickname, msg))


class ClientFactory(protocol.ClientFactory):
    channel = CHANNEL

    def buildProtocol(self, addr):
        protocol = IRCClient()
        protocol.factory = self
        return protocol

    def clientConnectionLost(self, connector, reason):
        print "connection lost, reconnecting"
        connector.connect()

    def clientConnectionFailed(self, connector, reason):
        print "connection failed:", reason
        reactor.stop()

if __name__ == '__main__':
    reactor.connectSSL(NETWORK, PORT, ClientFactory(), ssl.ClientContextFactory())
    reactor.run()