python网络编程报错socket.error: [Errno 9] Bad file descriptor

想学学python网络编程，按书上写了两个服务器和客户端小程序，结果发现报错：

Traceback (most recent call last):

  File "./tsTserv.py", line 20, in <module>

    data = tcpCliSock.recv(BUFSIZ)

  File "/usr/lib/python2.6/socket.py", line 165, in _dummy

    raise error(EBADF, 'Bad file descriptor')

socket.error: [Errno 9] Bad file descriptor

服务器端部分源代码如下：

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()

解决方法：

tcpCliSock.close()被放到了第二个while循环里，导致接收一次数据后tcpCliSock就会被关闭，应将该语句放到外层循环里