Network Python Tutorial

import socket
HOST = "127.0.0.1"
PORT = 5000
counter = 0
mySocket = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
try:
   mySocket.bind( ( HOST, PORT ) ) 
except socket.error:
   print "Call to bind failed"
while 1:
   print "Waiting for connection"
   mySocket.listen( 1 )
   connection, address = mySocket.accept()
   counter += 1
   print "Connection", counter, "received from:", address[ 0 ]
   connection.send( "SERVER Connection successful" )
   clientMessage = connection.recv( 1024 )
   while clientMessage != "CLIENT TERMINATE":
      if not clientMessage:
         break
      print clientMessage
      serverMessage = "message" 
      connection.send( "SERVER " + serverMessage )
      clientMessage = connection.recv( 1024 )
   print "Connection terminated"
   connection.close()