modular programming with python

Python network programming, TCP/IP client and server, 2015 python I have never been very clear about the definition of the server, and I have only a vague feeling about what the server/client architecture is. I recently started to learn about the relationship between some servers and clients. A server is a service provider. It is a hardware or software that can p

Python multi-thread and python multi-thread programming First, describe the multi-thread Application Scenario: When python processes multiple tasks, these tasks are essentially asynchronous and require multiple concurrent transactions, the running sequence of each transaction can be uncertain, random, and unpredictable

The example explains the proxy mode and abstract factory mode of Python Design Mode Programming, and the python design mode. Proxy ModeThe Proxy mode is A common design mode. It is mainly used to provide A 'agent' access to an object (such as B) (such as A) through an object (such as. For example, if an object is not directly referenced, the proxy acts as an inte

Comparison of Python programming and LUA programming 2016.4.21 To define a function: Python:def functionname():"Function _ Document String"return[expression] Lua:--[[ function returning the max between two numbers --]]function max(num1, num2) if (num1 > num2) then result = num1; else result = num2;

sockets to local IP and ports# Socket.socket (Socket.af_inet,socket. SOCK_STREAM), S.bind ()2 Start listening for connection #s. Listen ()3 Enter the loop and continuously accept the client's connection request #s. Accept ()4 then receive the incoming data, and send the data #s. recv (), S.sendall ()5 When the transfer is complete, close the socket #s. Close ()TCP Client:1 creating sockets, connecting remote addresses# Socket.socket (Socket.af_inet,socket. SOCK_STREAM), S.connect ()2 Send data

Title of this node1. Python Programming style1.1. Python Design philosophy1.2. Run import this in the Python interpreter to get a complete list of programming styles==============================================================================================================

I usually use C # A little more, but in all programming languages, I prefer Python! However, I usually use Python to write small programs. I don't have a big company's experience and may have a narrow eye. So I 'd like to ask, what are you doing with Python at work? I usually use C # A little more, but in all

Multiprocessing Module Introduction The multithreading in Python does not take advantage of multicore, and if you want to fully use the resources of multicore CPUs (Os.cpu_count () Viewing), most of the situations in Python require multiple processes. Python provides the multiprocessing. The multiprocessing module is used to open sub-processes and perform our cus

()returnk, Data g_lock.release ()return "', -1def sig_process (SIG, frame):Globalg_exit g_exit=1Print'Catch Signal'def run_thread (num):GlobalG_exitGlobalG_semGlobalG_lock name="'Data= -1 while 0==G_exit:g_sem[num].acquire () whiletrue:name, Data=get_event (name)if "'==Name: BreakG_lock.acquire () print name, Data g_lock.release () def test_thread ():GlobalG_exit while 0==G_exit: forIinchRange -): Add_event ('1', (I 2) +0) add_event ('2', (I 2) +1) add_event ('3', (I 2) +2) add_event ('4',

Python scope, local and global variables First understand that Python can change the scope of the code snippet is def class Lamda If/elif/else try/except/finally for/whileThe search path for a variable is: local variable-global variableTry the following code:x=100def Main (): x+=1 print(x) main ()When running the above code, there will be an error, for what, you need to understand the scope, local va

[Zero basics python] Why is this topic required? Zero programming basics pythonThis topic is named "Zero basics Python ".There are already a lot of courses on the Internet to learn python, and there are also many excellent courses. It is reasonable to say that there is no lack of basic courses for me. However, I have n

succeeds, the client can communicate with the server through the socket, and if the connection fails, a Socket.error exception is thrown.3. During the processing phase, the client and the server communicate via the Send method and the Recv method.4. When the transfer is complete, the client closes the connection by calling the Close method of the socket.server.pyImportSockets=socket.socket (socket.af_inet, socket. SOCK_STREAM)#create a socket based on the IPV4 and TCP protocolS.bind (("127.0.0.

Python socket programming, first requires the import socket moduleFirst create a Socket objectThe first of these parameters is usually the following1, socket.af_inet usually refers to the IP address, 2, Socket.af_unix usually refers to the local domain socket communication.A second parameter1, socket. Sock_stream stream Socket (TCP), 2, socket. Sock_dgram datagram Sockets (UDP)Binding the specified IP and p

Python programming binary method for bubble Algorithm + quick sorting code example, python binary method The example in this article is mainly the Python programming binary method for implementing the bubble Algorithm + quick sorting. The details are as follows. Bubble algor

Introduction to the proxy mode and template method Mode Programming in the Python design mode, and the python Design Mode Proxy ModeThe Proxy mode is A common design mode. It is mainly used to provide A 'agent' access to an object (such as B) (such as A) through an object (such as. For example, if an object is not directly referenced, the proxy acts as an interme

Python combination mode and responsibility chain mode programming example, python example Combination ModeWe regard the Composite mode as a complex attribute structure. In fact, there are basically three roles: trunk (defining some operations for leaf) and branches (many branches on the trunk) and the leaf (the object that the trunk wants to operate on), the Comp

Mathematica syntax is like Haskell. Scheme fully supports symbolic and functionalprogramming languages. It also supports various advanced data structures from list. You can also implement various algorithms based on patternmatching, ruleapply, and lambdaexpression. Its efficiency (at least from the perspective of Mathematics evaluation) is still very fast. Recently, Mathematica's syntax is Haskell. Scheme fully supports symbolic and functional programming