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Python study notes 9-powerful introspection of Python

1. What is introspection? Introspection is self-evaluation, self-reflection, self-criticism, self-control and self-education. It is a self-moral cultivation method proposed by Confucius. He said: "You can see your inspector and introspection ." (The Analects of Confucius) Of course, today we do not want to talk about the criticism and self-criticism of party members. Introspection is a kind of self-check behavior. In computer programming, introspection refers to the ability to examine something

Detailed description of how to implement database programming in Python, and programming in python Database

Detailed description of how to implement database programming in Python, and programming in python Database This article describes how to implement database programming in Python. Share it with you for your reference. The specific analysis is as follows: There are at least six methods available for database programming in PYT

Python Learning Summary "section No. 01": Introduction to Python

Python founder: Guido von Rossum (Uncle Tortoise)Python was written in 1989, officially born in 1991Python official website: www.python.orgPython version: Python 2.x and Python 3.xPython appPython can be used in many fields, such as data analysis, component integration, network services, image processing, numerical com

Python Learning Path, Day1–python Foundation 1

Written in the previous words:After graduating from college did not engage in their own professional work, during the period also done a lot of work, now came to a logistics company, but every day of work, boring, boring, found that this is not what they want, they also have their own dreams, also have their own pursuit, think of Tiff Chobs said, Everyone should learn the technology of writing programs to the computer, because this process can teach you how to think!In the vast programming langu

php versus Python (php vs Python)

Here, I excerpt some articles and discussions about PHP and Python comparisons, so that we can look at the pros and cons of PHP from another perspective. Also as a scripting language, the bottom layer is also developed by the C language, Python is oo, and now PHP is OO. Python is versatile (available for desktop applications and Web applications), and PHP is spec

How is python performing? To see what top companies around the world are using Python

You can focus on the public number: Python from the program Ape to the programmerThere are currently more than 500 programming languages, and more new languages are still being added every day. Although there are most overlapping languages and a large number of programming languages that are used only for theory and experimentation. But you have to choose a programming language that is commonly used as a daily life. What languages should you learn and

Python 30-Day Quick Learn Python video tutorials from getting started to mastering

Course CataloguePython Getting Started Tutorial -1-python programming language history and features. mkv python入门教程-2-Python编程语言初接触.mkv python入门教程-3-Python程序文件结构.mkv python入门教程-4-准备Py

Basic python exercises: several simple games and basic python exercises

Basic python exercises: several simple games and basic python exercises Document Introduction Using python to write "guess numbers", "guess words", and "Who is undercover" games, you can quickly get started with python programming, including python syntax/LIST/tuples/diction

Basic of python entry-level programming: python entry-level programming

Basic of python entry-level programming: python entry-level programming Python is an object-oriented, interpreted computer programming language. The Python syntax is concise and clear. One of its features is to force the use of blank spaces as statement indentation. The design philosophy of

Python app 01 original python server

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!In my previous Python tutorial, there was a message that it was useless to learn python, and that you had to learn a framework (like Django and web.py) to find work. My idea is that mastering a high-level tool like a framework is useful, but the basics can make you never be eliminated. Do not be limited by

Passing parameters of python black magic and passing python magic

Passing parameters of python black magic and passing python magic We have all heard that in the python world, everything is an object.How can we say that everything is an object? The most common: > class A: pass> a = A() We say that a is an object.Now that everything is ready, A is actually an object. 3 is also an object. True is also an object. "Hello" is also a

Python (Python Preview) as a scripting language)

Testing requires the use of scripting language to write automated programs, and the selection of scripting language is often a very confusing problem for beginners. In fact, the competition for scripting language is quite a long history. For example, the post in the Douban Python Programming Group: Why did Douban choose the former option between Python and Ruby? Since the discussion in, it has a long histor

"Reprint" about the first two lines of the Python script: #!/usr/bin/python and #-*-Coding:utf-8-*-– Specifying the file encoding type

The following content from: Http://www.cnblogs.com/blueskylcc/p/5332642.html, the other side is also rotating, but did not find the source of the reprint; 1, #!/usr/bin/python is used to illustrate that the scripting language is Python. is to use the/usr/bin Program (tool) Python, the interpreter, to interpret the

Python in-depth memory management of Python

Memory management of language is an important aspect of language design. It is an important factor in determining language performance. Whether it is the manual management of C language or the garbage collection of Java, it becomes the most important feature of language. In this example, the Python language illustrates a dynamic type, object-oriented language memory management method.Memory usage of the objectAssignment statements are the most common

Python Deep 06--python memory management detailed _python

Memory management of language is an important aspect of language design. It is an important factor in determining language performance. Whether the manual management of C language, or Java garbage collection, are the most important features of language. This is an example of a dynamically typed, object-oriented language memory management method in Python. object's Memory usage Assignment statements are the most common features of a language. But eve

A preliminary discussion of Python 3, part 1th: New features of Python 3

Python 3 is the latest version of Guido van Rossum's powerful universal programming language. Although it breaks backwards compatibility with the 2.x version, it cleans up some grammatical issues. This article is the first in a series of articles that describe various changes that affect the language and backward compatibility, and also provide several examples of new features.Cesar Otero, consultant, freelanceFebruary 02, 2009 Content

Original: Talk about Python small white how to system self-learning to become a Python Daniel (basic article) on

Original: Talk about Python small white how to system self-learning to become a Python Daniel (basic article) onSupport originalThis article, by the headline Py Cauchy published, prohibited reprint, I hope you support the originalYou are welcome to click the Copy link to see the original https://www.toutiao.com/i6545819194888290820/This original in addition to this chapter, the follow-up will also be derive

python--a few articles that must be read in Python

Python is easy to get started as a scripting language, but it's not a day's work to learn python well enough to write a beautiful, Pythonic python code, the purpose of this article is to recommend some excellent Python-related articles (for books you can see dip, learning Python

Python path "24th": Python Learning paths and practiced hand project collections

Python learning paths and practiced hand project collections Wayne Shi• 2 months agoReference: https://zhuanlan.zhihu.com/p/23561159More articles welcome to the Attention column: Learning programming.This series of Python technology paths includes seven modules for getting started, Python basics, Web frameworks, infrastructure projects, network programming, data

Python Introduction and installation and setup of Python installation and development tools

1.python Introduction: What kind of language is Python, Introduction to the basic features of PythonPython is a powerful, object-oriented dynamic, strong type, interpreted high-level programming language, is also a glue language, it has a cross-platform, robust, easy to learn and easy to use and other characteristics.There are several key words in the above sentence: powerful object-oriented dynamic Strong-

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