Python: udp Network Programming

Python: udp Network Programming

In python, the Network Program of the c/s architecture of udp protocol written by the socket module is as follows:

#! /Usr/bin/env python

# Server

From socket import *

Ss = socket (AF_INET, SOCK_DGRAM)
Ss. bind (HOST, PORT ))

While True:
Data, caddr = ss. recvfrom (BUFSIZE)
If not data:
Break
Print "I am server, connect from % s, recved: % s" % (caddr, data)
Ss. sendto ("I am server ",Caddr)
Ss. close ()

######################################## ################

#! /Usr/bin/env python
# Client

From socket import *

Cs = socket (AF_INET, SOCK_DGRAM)

While True:
Cs. sendto ("I am client", (HOST, PORT ))
Data, saddr = cs. recvfrom (BUFSIZE)
If not data:
Break
Print "I am client, connect from % s, recved: % s" % (saddr, data)
Cs. close ()