The socket in Python

In Python, the socket module is used to encapsulate the various underlying communications, support the TCP/UDP protocol, and facilitate the programming of the C/S class.

The most common usage:

such as Ftp_server:

1 ImportSocketserver2 classMysocketserver (socketserver. Baserequesthandler):3     defhandle (self):4          whileTrue:5             Try:6SELF.DATA=SELF.REQUEST.RECV (1024). Strip ()7                 Print(Self.client_address[0],'recv>>', Self.data)8 Self.request.send (Self.data.upper ())9             exceptException as E:Ten                 Print("the client is down! ", E) One                  Break AIpaddr='localhost' -port=9999 - #Server=socketserver. TCPServer ((ipaddr,port), mysocketserver) theServer=Socketserver. Threadingtcpserver ((ipaddr,port), mysocketserver) - Server.serve_forever () -Server.close_request ()

Ftp_server_code

Ftp_client

1 ImportSocket2 3Client =Socket.socket ()4Client.connect (('localhost', 9999))5  whileTrue:6data = input (">>>>>>")7     ifLen (data) = = 0:Continue8Client.send (Data.encode ("Utf-8"))9Re_data = CLIENT.RECV (1024)Ten     Print(Re_data) OneClient.close ()

Ftp_client_code

The socket in Python