基于Python的TCP阻塞式echo服务器

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
print 'recv data : ',data
tcpCliSock.send('[%s] %s' % (ctime(),data))

tcpCliSock.close()
tcpSerSock.close()

from socket import *

HOST = 'localhost'
PORT = 21567
ADDR = (HOST,PORT)
BUFFSIZE = 1024

tcpCliSock = socket(AF_INET,SOCK_STREAM)
tcpCliSock.connect(ADDR)
print 'connect host success'

while True:
data = raw_input(">")
if not data:
break
tcpCliSock.send(data)
data = tcpCliSock.recv(BUFFSIZE)
if not data:
break
print 'recv data : ',data
tcpCliSock.close()