Python Network Programming

Today learned a Python network programming, feel relatively simple, that is, the basic steps, Create--bind---listen-->receive/send---->close.

Also learn a TCP version of the server programming framework that can support multiple socket connections. The feeling is also possible. The simplest of these frameworks is Tcpserver+baserequesthandler:. A simple example is as follows:

Import socketserver# This program can support multiple client connection requests class Myrequesthandler (Socketserver.baserequesthandler): # Self.request is actually a socketdef handle (self): addr =self.request.getpeername () print "Got connection from", Addrwhile True: #当客户端主动断开连接时, SELF.RECV (1024) throws an exception try: #read a byte of each time, and remove the empty letter including (Space tab \ r \ n) data = s ELF.REQUEST.RECV (1024x768). Strip () if not Data:breakprint "receive from (%s):%s"% (Self.client_address,data) Self.request.sendall (Data.upper ()) Except:traceback.print_exc () Breakself.request.close () addr= (' 127.0.0.1 ', 8000) Server =socketserver.threadingtcpserver (Addr,myrequesthandler) server.serve_forever ()  #只是反复调用handle_request ( ) #server. Handle_request () #一个一个的处理链接请求.

The client is:

# *_* coding=gb2312 *-*import timeimport sysimport loggingfrom socket Import *host = "127.0.0.1" port = 8000def Test (): Glob Al Host,portbufsize=1024#print "Hello World" #logging. Warn ("There is some error") Client =socket (Af_inet,sock_stream) Client.connect ((Host,port)) while True:data =raw_input (' Please input sending data: ') if not data or data = = "Exit": Breakclient.send ("%s"% data) data =client.recv (bufsize) if not data:breakprint Data.strip () client.close () if __name__ = = ' __main__ ': Test ()

Python Network Programming