from socket import *
from time import ctime
HOST = ''
PORT = 21567
BUFSIZ = 1024
ADDR = (HOST, PORT)
tcpSerSock = socket(AF_INET, SOCK_STREAM)
tcpSerSock.bind(ADDR)
tcpSerSock.listen(5)
while True:
  print 'waiting for connection...'
  tcpCliSock, addr = tcpSerSock.accept()
  print '...connected from:', addr
  while True:
    data = tcpCliSock.recv(BUFSIZ)
    if not data:
      break
    tcpCliSock.send('[%s] %s' %(ctime(), data))
  tcpCliSock.close()
tcpSerSock.close()

from socket import *
HOST = 'localhost'
PORT = 21567
BUFSIZ = 1024
ADDR = (HOST, PORT)
tcpCliSock = socket(AF_INET, SOCK_STREAM)
tcpCliSock.connect(ADDR)
while True:
  data = raw_input('> ')
  if not data:
    break
  tcpCliSock.send(data)
  data1 = tcpCliSock.recv(BUFSIZ)
  if not data1:
    break
  print data1
tcpCliSock.close()

D:\code\ex>python tsTserv.py
waiting for connection...
...connected from: ('127.0.0.1', 2883)
waiting for connection...
...connected from: ('127.0.0.1', 2885)
waiting for connection...
...connected from: ('127.0.0.1', 2889)
waiting for connection...
...connected from: ('127.0.0.1', 2891)
waiting for connection...
...connected from: ('127.0.0.1', 2892)
waiting for connection...
...connected from: ('127.0.0.1', 2893)
waiting for connection...

D:\code\ex>python tsTclnt.py
> 1
[Thu Feb 02 15:52:21 2012] 1
> 2
[Thu Feb 02 15:52:22 2012] 2
> 3
[Thu Feb 02 15:52:22 2012] 3
> 5
[Thu Feb 02 15:52:23 2012] 5
> 6
[Thu Feb 02 15:52:24 2012] 6
>
D:\code\ex>