tcp_echo_server.py

# Echo server program
import socket

HOST = ''                 # Symbolic name meaning the local host
PORT = 50007              # Server Port 
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
    data = conn.recv(1024)
    if not data: break
    conn.send(data)
conn.close()