Python

In this paper, we describe the method for Python to find the difference set, intersection and set of two list. Share to everyone for your reference. Specifically as follows: List refers to the difference set between two arrays, the intersection,

The example of this article is about Python encryption and decryption method without certificate, share for everyone reference. The implementation methods are as follows: No certificate encryption is the two sides do not need to maintain the

This article is an example of Python multiple inheritance usage, shared for everyone to reference. The implementation methods are as follows: 1.mro.py files are as follows: #!/usr/bin/python # Filename:mro.py class P1: def foo (self):

This article describes the use of Psyco to achieve Python execution speed up to the same level as the compiled language, sharing for everyone to reference. The implementation methods are as follows: first, the installation of Psyco is very simple,

About the class, reader must have had the feeling, look at the following code, please read carefully, and see if you can find something wrong? Copy Code code as follows: #!/usr/bin/env python #coding: Utf-8 Class Person:def __init__ (

Data Flow Process In addition to writing this function in a class, you can write another function in the class, extending the previous example: Copy Code code as follows: #!/usr/bin/env python #coding: Utf-8 Class Person:def _

1. Download Pyinstaller and decompression (can go to the official website to download the latest version):https://github.com/pyinstaller/pyinstaller/ 2. Download Pywin32 and install (note version, mine is

Get the name of the current machine: Copy Code code as follows: def hostname (): SYS = Os.name if sys = = ' NT ': hostname = os.getenv (' computername ') return hostname elif sys = = ' POSIX ': Host = Os.popen (' echo

The difference between queue and pipe: pipe is used to communicate between two processes. The queue is used to implement communication between multiple processes. These two methods are the basic method for all systems to communicate in multiple

Synchronization methods are basically the same as multithreading. 1) Lock Lock can be used to avoid access conflicts when multiple processes require access to shared resources. Copy Code code as follows: Import multiprocessing Import

This article illustrates the implementation of the Python port scanning system. Share to everyone for your reference. The implementation methods are as follows: The main functions of the program are as follows: 1. From its own API interface to

This example describes how Python uses any to determine whether an object is empty. Share to everyone for your reference. The specific implementation code is as follows: Copy Code code as follows: >>> eth = {"Eth0″:" 192.168.1.1″} >>> any (

This article illustrates the Python implementation method of decision tree. Share to everyone for your reference. The implementation methods are as follows: Decision tree algorithm Advantages and disadvantages: Advantages: The computational

Many people know that IPython has a good automatic complement, but it doesn't necessarily know that Python can also be Tab-complete,After you start Python, you can perform the following Copy Code code as follows: Import ReadLine,

The Fileinput module provides the ability to work with one or more text files, and you can read all the rows of one or more text files by using a For loop. It works the same way as readlines, except that it does not read all the rows to the list but

Python relay literal characters A regular expression uses a backslash "\" to represent a particular form or as an escape character. This is in conflict with Python syntax, so python uses "\\\\" to represent "\" in the regular expression, because if

I read about "Python 3 is destroying Python" from Stephen Goss. There are a lot of great arguments in this article, but I don't think Python 3 is destroying python or that the whole situation is bad for Python. But as the more tacky adage says,

A list is a commonly used data type in Python, an ordered collection in which the elements are always in the order of the initial definition (unless you sort them or other modifications). In Python, add elements to the list by following 4 methods

Review the existing results: (1) connecting the database, (2) establishing the pointer, (3) inserting the record through the pointer, and (4) committing to save the insert result to the database. In the interactive mode, the first temperature, and

The examples in this article describe the proprietary methods of the Python class. Share to everyone for your reference. The specific analysis is as follows: A Python class can define a private method that is invoked by Python for you in special