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In fact, the main function of the getattr () method is to implement the reflection mechanism. That is to say, you can use strings to obtain the method instance. In this way, you can place the methods that a class may call in the configuration file

This article mainly introduces the Python multi-process programming technology, including the concepts of threads, queues, synchronization, and other related skills, if you need it, you can refer to this article to analyze the Python multi-process

The list and str types of data have many similarities and are quite different. In this article, we will make a brief comparison between them and review the previous knowledge about the two ". Similarities All data belongs to the sequence type The

This article mainly introduces the usage examples of the logging module in Python, and introduces the usage of the logging module in the form of instances, which has some practical value, for more information about how to use the logging module, see

This article describes how to obtain file version information, company name, and product name in python. it is a very practical technique in Python programming, for more information about how to obtain file version information, company name, and

This article mainly introduces how to load Python modules. For more information, see whether to use import or from mmmm import *. after the program runs, looking back at the mmmm storage. directory of the py file (about mmmm. the py file can be

This article first introduces two methods of urllib2, and then introduces in detail the two important concepts of urllib2: Openers and Handlers. we hope to help you before you start the following content, the following two methods in urllib2 are

This article mainly introduces the Python multi-process communication Queue, Pipe, Value, Array instance, queue and pipe are used to transmit messages between processes. Value + Array is a method for sharing memory ing files in python. For more

This article mainly introduces the example of using MELIAE to analyze program memory usage in Python. This article provides sample code. if you need a friend, you can refer to the dht protocol search program written below, I optimized these days and

This article mainly introduces how to implement a simple socket program in python to transmit messages between two computers. it involves Python socket operations and has some reference value, for more information about how to transmit messages

This article describes how to use the dictionary dict to determine whether a specified key value exists. The example shows how to use has_key and in to determine whether a specified key value exists in python, this document describes how to use the

This article mainly introduces how to generate local IP addresses in python in batches. The example analyzes how to generate local IP addresses and bind them to the network card in Python, which has some reference value, for more information about

This article mainly introduces how python reads json files and inserts data into mongodb. it analyzes Python's skills in operating json and mongodb databases, for more information about how to read json files and insert data to mongodb, see the

This article mainly introduces Python's source code and running method for implementing the popular foreign casino game Craps (dual dice), which is very simple. if you need it, you can refer to it. Running method: 1. enable python2 IDLE;2. input

This article mainly introduces some special division and power operations in Python. what about division? "*" Is a multiplication operation. what about this? This article explains the differences between these operations. For more information, see

This article describes how to use memcached in Python to reduce the number of database queries. memcached is a distributed memory cache tool that can reduce the number of hard disk I/O operations, for more information about how to optimize the

This article mainly introduces how to convert xml or xsl to html format using Python. This article provides the implementation code directly. if you need it, refer to a small program that uses python to process xml conversion the next day, used to

This article mainly introduces multiple formats of functions in Python and examples and tips, this article describes common formats, functions with collection location parameters, functions with collection keyword parameters, special usage of

This article mainly introduces the disconnectUDP socket method in Python. This article uses the ctypes bypass method, for more information about UDP sockets, you can use the connect system to connect to the specified address. Since then, this socket

This article mainly introduces how to test the competition conditions for accessing the same data in Python, and explores the problem of priority access in the case of multithreading or multi-process, if you have multiple processes or threads