1 #!/usr/bin/env python
 2 
 3 import socket
 4 
 5 
 6 TCP_IP = '127.0.0.1'
 7 TCP_PORT = 5005
 8 BUFFER_SIZE = 1024
 9 MESSAGE = "Hello, World!"
 10 
 11 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 12 s.connect((TCP_IP, TCP_PORT))
 13 s.send(MESSAGE)
 14 data = s.recv(BUFFER_SIZE)
 15 s.close()
 16 
 17 print "received data:", data

 1 #!/usr/bin/env python
 2 
 3 import socket
 4 
 5 
 6 TCP_IP = '127.0.0.1'
 7 TCP_PORT = 5005
 8 BUFFER_SIZE = 20 # Normally 1024, but we want fast response
 9 
 10 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 11 s.bind((TCP_IP, TCP_PORT))
 12 s.listen(1)
 13 
 14 conn, addr = s.accept()
 15 print 'Connection address:', addr
 16 while 1:
 17  data = conn.recv(BUFFER_SIZE)
 18  if not data: break
 19  print "received data:", data
 20  conn.send(data) # echo
 21 conn.close()