使用python的socket技术实现主客端交互

最近研究了一下python，确实比较好用。先小试牛刀一把，利用socket实现主客端交互，具体代码如下：
1、服务器端socket_server.py
#socket_server.py
import socket
import os
import sys
def work():
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.bind(('0.0.0.0',1000))#绑定本地1000端口
        sock.listen(5)
        while True:
                try:
                        conn, addr = sock.accept()
                        ret = conn.recv(2048)
                        result = os.popen(ret).read()
                        conn.send(result)
                except KeyboardInterrupt:
                        print 'Now we will exit'
                        sys.exit(0)
        sock.close()
if __name__ == '__main__':
        work()
# nohup sudo python socket_server.py  进行启动

2、客户端socket_client.py
import socket
import os
import sys
def socket_send(command):
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.connect(('192.168.81.65', 1000))
        sock.send(command)
        result = sock.recv(2048)
        sock.close()
        return result
#if __name__ == '__main__':
cmd=sys.argv[1] #参数命令
print socket_send(cmd)

# python socket_client.py 'ls /opt' 在服务器端执行ls /opt 命令