python socket实现通信

import socket
#服务器端
sock = socket.socket()
HOST = '127.0.0.1'   #本机IP
PORT = 2049
INFO = (HOST, PORT)   
sock.bind(INFO)   #绑定主机和端口号到套接字上
sock.listen(8)    #连接最大为8个
try:
    while True:
        client_socket, address = sock.accept()  #接受TCP客户端的连接
        print address
        while True:
            received_data = client_socket.recv(50)  #接受的字节数
            if not received_data:
                break
            client_socket.sendall("%s" %received_data)
            print received_data
        client_socket.close()
except Exception as e:
    raise e


finally:
    sock.close()


import socket
#socket通信客户端
client  = socket.socket()
HOST = '127.0.0.1'   #本机IP
PORT = 2049
INFO = (HOST, PORT) 
client.connect(INFO)
#client.send("hello")
while 1:
    myinput = raw_input()
    client.send(myinput)
    data = client.recv(1024)
    if data:
        print data
    else:
        break
client.close()