Python

# Import some necessary libraries.
import socket 

# Some basic variables used to configure the bot        
server = "irc.freenode.net" # Server
channel = "##apelektronica" # Channel
botnick = "FailBot" # Your bots nick

ping = "PONG :pingis\n"
def ping(): # This is our first function! It will respond to server Pings.
  ircsock.send(ping.encode("utf-8")  

stuur = "PRIVMSG "+ chan +" :"+ msg +"\n"
def sendmsg(chan , msg): # This is the send message function, it simply sends messages to the channel.
  ircsock.send(stuur.encode("utf-8") 

chanjoin = "JOIN "+ chan +"\n"
def joinchan(chan): # This function is used to join channels.
  ircsock.send(chanjoin)

hellosend = "PRIVMSG "+ channel +" :Leave me alone!\n"
def hello(): # This function responds to a user that inputs "Hello Mybot"
  ircsock.send(hellosend)


kak = "USER "+ botnick +" "+ botnick +" "+ botnick
nicksend = "NICK "+ botnick +"\n"

ircsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ircsock.connect((server, 6667)) # Here we connect to the server using the port 6667
ircsock.send(kak.encode("utf-8") # user authentication
ircsock.send(nicksend.encode("utf-8") # here we actually assign the nick to the bot

joinchan(channel) # Join the channel using the functions we previously defined

while 1: # Be careful with these! it might send you to an infinite loop
  ircmsg = ircsock.recv(2048) # receive data from the server
  ircmsg = ircmsg.strip('\n\r') # removing any unnecessary linebreaks.
  print(ircmsg) # Here we print what's coming from the server

  if ircmsg.find(":Hello ") != -1: # If we can find "Hello Mybot" it will call the function hello()
    hello()

  if ircmsg.find("PING :") != -1: # if the server pings us then we've got to respond!
    ping()