learning python network programming

Learning book: John Goerzen, author of python network programming Basics Part 1 underlying network learning Python provides all the methods to access the Socket interface of the underly

Theme Client/server architecture Socket: End of communication Socket address Connection-oriented and non-connected sockets Network programming in Python Socket module Socket Object Methods TCP/IP client and server UDP/IP Client and server Socketserver Module Twisted Framework Introduction Related modules 1

Reprint Please note: @ small Wuyi http://www.cnblogs.com/xiaowuyi Learning book: John goerzen, author of Python network programming BasicsPart 1 underlying network learningPython provides all the methods to access the socket interface of the underlying operating system. Th

Learning book: John Goerzen, author of the basics of Python network programming The first part of the bottom network learning Python provides all the methods to access the socket inter

Recently, just after the internship, very much like the experimental building, but their own direction is still not sure, I think the space is very large, although already a senior person, think of others are busy to buy professional clothes, buy high-heeled shoes interview, learn makeup, look at themselves, instead began to slowly focus on sports, diet and skin care, haha, The programmer is Jiangzi, the body is the capital of revolution. Now the direction is at least determined, the data analys

','123456') . JSON ()#use the auth parameter to specify the account password for the authentication of the permission, Auth is a tuple Print(RES)#====== sending files =====URL ='Http://api.nnzhp.cn/uploadfile'Res= Requests.post (url,files={'file': Open ('api11.py') }). JSON ()#Specify files parameter, pass file, is a file object Print(RES)#===== Send header======URL ='Http://api.nnzhp.cn/getuser2'Data= {'userid': 1} header= {'Content-type':"Application/json"} res= Requests.post (ur

. To address these numbers conveniently, these numbers are referred to as ports. (This port is a logical port) C: Transport protocol : rules for communication. For example: TCP, UDP protocol (like two people have to communicate in the same language) ①, udp:user Datagram Protocol User Datagram Protocol Features: For no connection: the source and destination ports do not need to be connected before transmitting data, each datagram size is limited to 64K (8 bytes), and the unreliable protocol

, then numbering each IP packet, ensuring that the other party receives it sequentially, and automatically re-sends if the package is lost. 8) Many of the more advanced protocols are based on the TCP protocol, such as the HTTP protocol for the browser, the SMTP protocol for sending mail, and so on. 9) A TCP message contains both the source and destination IP addresses, the source and destination ports, in addition to the data to be transmitted. 10) What role does the port have? Wh

and downloading remote filesSftpclientFor connecting to a remote server and performing an upload downloadUpload and download based on user name password:Import Paramiko transport = Paramiko. Transport (' 172.16.2.234 ', ()) Transport.connect (username= ' root ', password= ' 123345 ') sftp = Paramiko. Sftpclient.from_transport (transport) # upload location.py to Server/tmp/test.pysftp.put ('/data/local/location.py ', '/data/ remote/test.py ') # download Remove_path to local local_pathsftp.get

Server-side code:Import Socket,commandshost = ' Port = 1053s = Socket.socket (socket.af_inet,socket.Sock_stream) S.bind ((Host,port)) S.listen (1) while 1:conn,addr = S.accept () while 1:data = CONN.RECV (1024)CC,BB = commands.getstatusoutput (data) If Len (Bb.strip ())! = 0:conn.sendall (BB) Else: Conn.sendall ("Done")Client side:Import Socket,oss = Socket.socket (socket.af_inet,socket. SOCK_STREAM) host = "www.xiaoran.com" Port = 1053s.connect ((host,port)) While 1:cc = Raw_input ("plase input

socketimport os tran = Paramiko. Transport ((host,port)) #连接服务器, host and Port Custom tran.start_client () Default_path = Os.path.join (os.environ[' HOME '), '. SSH ', ' id_rsa ') key = Paramiko. Rsakey.from_private_key_file (Default_path) tran.auth_publickey (' root ', key) Chan = Tran.open_session () # Open a channel chan.get_pty () #获取一个终端chan. Invoke_shell () #激活器 f = open (' Log.log ', ' a ') #打开一个文件用于写入执行的 Operation while True: # Monitor user input and server return data # Sys.stdin proce

Python is a powerful network programming tool for two reasons:1. There are many libraries in Python for common network protocols2. Python's advantages in processing byte streamsThis chapter mainly discusses some network modules in