python socket programming

The native socket client is blocked when it connects to the server, that is, when the server calls the Accept method, while the server and the client are blocked when the data is received (called recv). The native socket server can only handle one client request at a time, that is, the server cannot communicate with multiple clients simultaneously, and the service side resource is idle (the server only occu

communicate via the Send and Recv methods"""Connection.settimeout (5) Buffer= CONNECTION.RECV (1024) ifBuffer = ='1': Connection.send ('Welcome to server!') Else: Connection.send ('Cut off the connection!') exceptsocket.timeout:Print('Time out!') """finally the transfer ends, the server calls the socket's Close method to close the connection"""connection.close ()#---------------------------------------------------------------------- defrun_

Python socket Programming Tcpby Wuxyserver.pyImport Socketimport commandsbuf_size = 1024server_addr = (' 127.0.0.1 ', 8888) server = Socket.socket (socket.af_inet, Socket. SOCK_STREAM) server.setsockopt (socket. Sol_socket, SOCKET

there is a "distributed System" this book, if you are blocking calls, you will always put yourself "hang" until the book has no results, if the non-blocking call, you don't care if the boss has told you, you have to play the first side, Of course, you'll have to check the boss for a few minutes occasionally.Here the blocking is independent of the non-blocking and whether synchronous asynchronous. It has nothing to do with how the boss responds to your results.2. Use forkingmixin in the

Server-side socket_server.py file#_ *_ coding:utf-8 _*_# Importing Socket module Import socket# Create socket Object SK = Socket.socket () #绑定侦听的IP和端口号ip_port = (' 192.168.9.213 ',9999) Sk.bind (ip_port) #最大连接数sk. Listen (5) #接受请求, the client's socket object can be obtained when the request is received, and the client'

Directly on the code, then explain:#-*-Coding:utf-8-*-# Maybe you don't want to write process-based applications for some reason, rather than write multithreaded applications# As with previous Forkingmixin-based socket servers, socket servers written with ThreadingMixIn are subject to the same ECHO server programming pattern# Threadedservr inherits from TCPServer

protocol:Service sideImportSocketsk= Socket.socket (type=socket. SOCK_DGRAM)#Create a UCP socket objectSk.bind (('127.0.0.1', 8080))#binding IP and Portsmsg, Address= Sk.recvfrom (1024)#The UCP waiting to receive data must first receive dataPrint(Msg.decode ('Utf-8')) Sk.sendto (b'Hello', address)#send data to carry the address where the data is sentsk.close ()ClientImportSocketsk= Socket.socket (type=

ack_msg = bytes ("cmd_result_size|%s"% Len (cmd_resuLT), "UTF8") #发送数据传输认证标志 conn.send (ack_msg) Client_ack = Conn.recv () if client_ack.decode () = = ' Clie Nt_ready_to_recv ': Conn.send (Cmd_result) #数据传输 conn.close () Socket-client2 #!/usr/local/env Python3 "author:@ South Africa Bobo blog:http://www.cnblogs.com/songqingbo/e-mail:[email Protected] "Import Socketip_port = (" 127.0.0.1 "," ssh_client "= Socket.socket () ssh_client.connect (Ip_por

123456789 #-*-coding:utf-8-*- import socket print "Creatingsocket" s = socket.socket (socket.af_inet, socket. SOCK_STREAM) print "done!" print "connectingto Remotehost " s.connect (( , 80 )" print "Done" When Python uses the Socket.af_inet constant after using the import socket, this co

) Print "[*] Received:%s"%Request Client_socket.send ("ack!") Client_socket.close () whiletrue:client, addr=server.accept ()Print "[*] Accepted connection from:%s:%d"% (Addr[0], addr[1]) Client_handler= Threading. Thread (Target=handle_client, args=(client,)) Client_handler.start ()Server.close ()UDP client:__author__ ' Seven ' Import "127.0.0.1"= socket.socket (socket.af_inet, Socket. SOCK_DGRAM) client.sendto ("ABCDEF"= client.recvfrom (4096) P

Both sides of the communication need to have a server and a client, so separate to write code.So I created two PY programs, the first one is the server: iserver.py and client iclient.pyService side:#coding: Utf-8From socket Import *s = socket (af_inet,sock_stream) #建立一个服务器socket对象, similar to the process of buying a phone, af_inet is the

here", encoding= ' Utf-8 '))"""This is the service side of socket network programming."""Import socketObj=socket.socket ();Obj.connect (("172.8.250.59", 8008))RECIVE=OBJ.RECV (1024x768) #最多接收1024字节Recive=str (recive,encoding= ' utf-8 ')Print (recive)While True: Inp=input ("Please enter what you want to send") If inp== ' Q ': Obj.sendall (Bytes (INP, encoding= ' Utf-8 ')) Break Else

Python network programming: socket, gethostname, gethostbyname Function: print the Host Name and Host IP Address: [root@iZ94gh8l046Z python]# cat socket1.py #!/usr/bin/pythonimport sockethost_name = socket.gethostname()print hostname:%s % host_nameprint IP address: %s %socket.gethostbyname(host_name) Running result:

, respectively, where clients can run multiple. Both the server side and the client use the socket and thread(thread), which is written in an object-oriented way. Client.py is relatively simple. The analysis is as follows: first the nickname information is initialized and the corresponding port is monitored. The member function in main declares two threads, one for sending information and one for receiving information. When no information is rec

(1) simple link with socketthe socket inside Python supports UDP, TCP, and interprocess communication . the socket can encapsulate what we want to send, send the past, and then back to the original appearance, in fact, network communication can understand that Chengdu is built on the socket, the following code is to de

Python TCP Socket programming detailed Beginner script Language Python, test the available TCP communication programs: Server: #!/usr/bin/env python #-*-coding:utf-8-*- Import Socket import Threading import Time def tcplink (