A simple IRC BOT written in Python

import sys
import socket
import string
import os #not necassary but later on I am going to use a few features from this

HOST='mesa.az.us.undernet.org' #The server we want to connect to
PORT=6667 #The connection port which is usually 6667
NICK='pybotv000' #The bot's nickname
IDENT='pybot'
REALNAME='s1ash'
OWNER='ne0n-' #The bot owner's nick
CHANNELINIT='#test198' #The default channel for the bot
readbuffer='' #Here we store all the messages from server

s=socket.socket( ) #Create the socket
s.connect((HOST, PORT)) #Connect to server
s.send('NICK '+NICK+'n') #Send the nick to server
s.send('USER '+IDENT+' '+HOST+' bla :'+REALNAME+'n') #Identify to server

while 1:

        line=s.recv(500) #recieve server messages
    print line #server message is output
    if line.find('Welcome to the UnderNet IRC Network')!=-1: #This is Crap(I wasn't sure about it but it works)
        s.send('JOIN '+CHANNELINIT+'n') #Join a channel
    if line.find('PRIVMSG')!=-1: #Call a parsing function
        parsemsg(line)
        line=line.rstrip() #remove trailing 'rn'
        line=line.split()
        if(line[0]=='PING'): #If server pings then pong
            s.send('PONG '+line[1]+'n')

def parsemsg(msg):
    complete=msg[1:].split(':',1) #Parse the message into useful data
    info=complete[0].split(' ')
    msgpart=complete[1]
    sender=info[0].split('!')
    if msgpart[0]=='`' and sender[0]==OWNER: #Treat all messages starting with '`' as command
        cmd=msgpart[1:].split(' ')
        if cmd[0]=='op':
            s.send('MODE '+info[2]+' +o '+cmd[1]+'n')
        if cmd[0]=='deop':
            s.send('MODE '+info[2]+' -o '+cmd[1]+'n')
        if cmd[0]=='voice':
            s.send('MODE '+info[2]+' +v '+cmd[1]+'n')
        if cmd[0]=='devoice':
            s.send('MODE '+info[2]+' -v '+cmd[1]+'n')
        if cmd[0]=='sys':
            syscmd(msgpart[1:],info[2])
        
    if msgpart[0]=='-' and sender[0]==OWNER : #Treat msgs with - as explicit command to send to server
        cmd=msgpart[1:]
        s.send(cmd+'n')
        print 'cmd='+cmd

def syscmd(commandline,channel):
    cmd=commandline.replace('sys ','')
    cmd=cmd.rstrip()
    os.system(cmd+' >temp.txt')
    a=open('temp.txt')
    ot=a.read()
    ot.replace('n','|')
    a.close()
    s.send('PRIVMSG '+channel+' :'+ot+'n')
    return 0