Python TCP Socket

Socket (socket), the endpoint of the Transport Layer communication, consisting of an IP and a port number (Ip,port), which can be used to accurately locate and communicate with the process on the server through the socket

python2.6 implementation, based on af_inet (network sockets)
Type Socket_stream (TCP socket), Socket_dgram (UDP socket)

TCP Socket Communication Logic
TCP Service side: Create socket>>> bind the ground server >>> listen for connection >>> communication interaction >>> Close Connection
TCP client: Create socket>>> to establish connection >>> communication interaction >>> Close Connection

Python TCP Socket Service side

1     #!/usr/bin/python2     #-*-coding:utf-8-*-3 4     #filename:Tdpsocket.py5     #Author:6     #Create date:2015-03-257     #Modify Date:8     #description:tcp Socket9 Ten     #Import Stander Lib One      fromSocketImportsocket, af_inet, Sock_stream A     ImportSYS -Sys.path.append ('..' ) -  the  -     classtcpsocket (): -         " " - Tcpsocket class, establishes the TCP socket server, obtains the configuration information to establish the connection + Usage: - p = tcpsocket.tcpsocket () + P.listen () A Infinite loop Listening port, process rewrite data processing method at         " " -          -         def __init__(self): -             " " - Initialize, establish SOCKET,IP port bindings -             " " inSelf.tcpserversocket = socket (af_inet, SOCK_STREAM)#Create a TCP socket -             #Port number is 0-65535,0-1023 for system reserved, dynamic port 49152-65535, service using port 1024-49151 interval toSelf.tcpServerSocket.bind (('127.0.0.1', 20015) ) +Self.tcpServerSocket.listen (5) -Self.buffer_size = 1024#buffer is 1k the              *              $         defBulidconnect (self):Panax Notoginseng             " " - establish a connection, get information about the connection client, receive data the             " " +Tcpclientsocket, addr =self.tcpServerSocket.accept () A             Print 'Conn from:', addr theRaw_data =tcpclientsocket.recv (int (self.buffer_size)) +             Print 'Receive data:', Raw_data -              $             return(Tcpclientsocket, Raw_data) $              -  -         defprocess (self, data): the             " " - socket transfer data processing, inheritance override this functionWuyi             " " theresult =Data -             returnresult Wu  -          About         defSend (self, TCP, result): $             " " - return information, close connection -             " " -Tcpclientsocket =TCP A tcpclientsocket.send (Result) + tcpclientsocket.close () the              -          $         defListen (self): the             " " the listening port, infinite loop the             " " the              whileTrue: -                 Print 'Wati for Connect:' inSocket_data = Self.bulidconnect ()#Establish a connection theresult = Self.process (socket_data[1])#receive information, process information theSelf.send (socket_data[0], result)#returning information to the client About self.close () the          the          the         defClose (self): +             " " - Close Connection the             " "Bayi self.tcpServerSocket.close () the  the              -         def __del__(self): - self.close () the  the  the     if __name__=='__main__': thep =Tcpsocket () -P.listen ()

Python TCP Socket Client

1     ImportSocket2 3Sock =Socket.socket (socket.af_inet, socket. SOCK_STREAM)4Server_address = ('127.0.0.1', 20015 )5 6     Print 'connecting to%s:%s.'%server_address7 Sock.connect (server_address)8 9Message ="I ' m TCP client"Ten     Print 'sending "%s".'%message One  ASock.send ('[{"url": "Www.baidu.com"}]' ) -     Print 'receive from server:', SOCK.RECV (1024) -  the sock.close () -     Print 'Closing socket.'

Python TCP Socket