python network programming book

14.1.1 Socket ModuleIn network programming, a basic component of Lourdes is the socket. Sockets are primarily information channels between two programs.Sockets consist of two: Server sockets and Client sockets. After creating a server socket, let it wait for the connection. So it listens at a network address.A socket is an instance of the socket class in a socket

'... connected from:', addr whileTrue:data=tcpclisock.recv (bufsiz) #用于接收从客户端发来的数据 parameter represents the maximum amount of data accepted at one time, here is 1kif notData: BreakTcpclisock.send ('[%s]%s'%(CTime (), data) # Send timestamp as content to client Tcpclisock.close () Tcpsersock.close ()At runtime, you can see that the server is running and waiting for a client to connect, so at this point we need to use the client to connect to the server.To write a simple client-side program: fro

=user.objects.filter (name="Wer"). Order_by ("id")#对查询结果id字段进行排序 returnHttpResponse (". format (SQL, Data,ordername.values ()))AttentionDo not forget to update the database after the database operation is complete. Console commands are as follows python manage.py makemigrations appname python manage.py migrate This address: http://blog.csdn.net/a359680405/article/details/51361562Previous:

This article mainly introduces the tutorial on UDP network programming in Python. UDP programming is the basic knowledge of Python network programming. the sample code is based on Pytho

[Python network programming] Design and Implementation of daemon background tasks In B/S-based applications, you often need to run tasks in the background, such as sending emails. In some projects, such as firewalls and WAF, the front-end only displays content and various parameter configurations, and the background daemon process is a major concern. Therefore, y

Features: Print host name and host IP:[email protected] python]# Cat socket1.py #!/usr/bin/pythonimport sockethost_name = socket.gethostname () print " hostname:%s "% host_nameprint" IP address:%s "%socket.gethostbyname (HOST_NAME)Operation Result:[Email protected] python]#./socket1.pyhostname:iz94gh8l046zIP address:10.170.16.67Module:Import socketHow to use:Socket.gethostname get hostname (/etc/hostname)So

Previously also learned the socket programming, this time want to systematically study the use of Python network programming. Do this, for testing progress, also leave notes and footprints for the follow-up. Socket common functions get host name and host address Socket.gethostname () Socket.gethostbyname () Import Soc

are rarely used, or are not implemented at all, in all address families, Af_inet is the most widely used one, Python supports a variety of address families, but since we only care about network programming, most of the time I only use af_inet.5.TCP Protocol and UDP protocolTCP(transmission Control Protocol) Reliable, connection-oriented protocol (eg: call), low

"Everything is file", and the file is operated with "open" "Read and Write" "Off" mode. Socket is an implementation of this pattern, the socket is a special kind of file, some of the socket function is the operation of it (read/write Io, open, close)The difference between a socket and file: The file module is "open", "Read and write" "Close" for a specified document The socket module is "open", "Read and write" "Off" for server-side and client sockets TCP Communication, the fi

address families, Python supports a variety of address families, but since we only care about network programming, most of the time I use af_inet only)Iv. Socket WorkflowA scene in the life. You have to call a friend, dial first, a friend hears a phone call, and then you and your friend establish a connection, you can talk. When the communication is over, hang u

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

This article mainly introduces common python network programming code segments. For more information, see the following server code: #-*-Coding: cp936-*-import socket sock = socket. socket (socket. AF_INET, socket. SOCK_STREAM) # Initialize socket sock. bind ("127.0.0.1", 8001) # bind the local address, Port 8001 sock. listen (5) # wait for the client to conne

Network programming patents should belong to UNIX, each platform (such as Windows, Linux, etc.), the language (c, C + +, Python, Java, etc.) to achieve the same characteristics of the syntax are similar. In my opinion, understand the UNIX socket network programming, other fo