Python

Beautiful Soup is a Python library designed for quick turnaround projects like screen-scraping. Anyway, it's a library of parsing XML and HTML, which is handy. 。Website address: http://www.crummy.com/software/BeautifulSoup/Below is an introduction

The GetAttr () function in Python is detailed: GetAttr (object, name[, default]), value Get A named attribute from an object; GetAttr (x, ' Y ') is equivalent to x.y. When a default argument is given, it's returned when the attribute doesn ' t

Dictionary lengthThe dictionary dic1,dic2 values, and the comparison results are as follows:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/5A/65/wKiom1T8WleC2rRYAAB-yg7JBdg034.jpg "title=" QQ picture 20150308221727.png "alt="

Open the command line tool, and in Doc, enter:4567Then access http://localhost:4567/in the browser, and you should see all the modules in Python nowPress Ctrl+f, enter selenium, locate the link to the selenium document, and then click Enter to Http:/

Boolean variable The following values are interpreted as false (false):False None 0 "" () {} []Everything else has been interpreted as true.>>> TrueTrue>>> FalseFalse>>> True = = 1True>>> False = = 0True>>> True + False +4243bool Function--used

Tornado is an open-source version of the extensible, non-blocking Web server and its associated tools used by FriendFeed. http://www.tornadoweb.cn/Fabric is a python library that can perform bulk tasks on multiple hosts via SSH. You can write task

With the mood of chicken move with you introduce a domestic open-source operation and maintenance software triaquae, easy to help you handle most of the operation and maintenance work!Triaquae is a homegrown, Python-based, open-source batch

If you want to see how many IP accesses Nginx has, which countries visit, and show the attribution of IP address distribution, Python can use the GAO Chunhui teacher ipip.net "Free IP Address Database", the shell can use Nali, I mainly use the

In general, when we do scientific calculations, the first thing to think of is MATLAB, but, the thought of the MATLAB installation package so big, I have a little to say what.Matplotlib is Python's most famous drawing library, which provides a

Programmer's Programming Art: Interview and algorithmic experience http://taop.marchtea.com/ Https://github.com/julycoding/The-Art-Of-Programming-By-July/tree/master/ebook/code/python 1.1 Rotating A string 1: def simpleshift (str, n): 2:

This article is a summary of what I learned from the InternetI. What is Tkinter? Tkinter is a python built-in GUI graphics library that supports multiple operating systems and is developed using TCL language;The Python code we write will call the

Reference book "Technical analysis using Python: Python for Data analyses"The official upgraded the EPD (https://www.enthought.com/products/canopy/package-index/) to Canopy (https://www.enthought.com/products/ canopy/package-index/), in order to be

Environment: Python2.7.9/sublime Text 2/chrome1.url access, call the Urllib library function directlyImport urllib2url='http://www.baidu.com/'= urllib2.urlopen (URL) HTML =response.read ()print html2. Access with parameters, with the Baidu search

problem to solve: to match a string, the case of the letter in the string is not deterministic, how to match?The problem is preceded by the use of a string comparison, such as to match ' abc ', the phrase:1 if ' ABC ' : #s为需要匹配的字符串 2 Print '

Python writes the Windows service and needs to use the PYWIN32 package.Directly on the code:#encoding =utf8 "Created on 2014-7-1@author:wangmengnan" Import Osimport sysimport Win32serviceutilimport Win32serviceimport win32eventclass Pythonservice

In automation scripts, file download is a more common operation, in general, we will put the file on an HTTP server, when the script needs this file, you need to use the HTTP download functionThe most basic download function implementationTo achieve

Re is a regular expression module for Python, which records the use of the actual development process.The best practice for regular expressions is to use the Re.compile method after compilation, which is more efficient1, Re.search ()ExampleTS 1423031

Reprint: @ Xiao Wu Yi Http://www.cnblogs.com/xiaowuyiPython Plus "Verification Code" for keywords in Baidu Search, you can find a lot of verification code identification of the article. I have a general look, the main methods have several categories:

From: http://blog.csdn.net/ericzhong83/article/details/7604728 factory method Mode (Factory pattern):Defines an interface to create an object, but subclasses decide which of the classes to instantiate, that is, to create objects from

Python Longest Common substring algorithm instance and python longest Algorithm This example describes the longest common substring Algorithm in Python. Share it with you for your reference. The details are as follows: #!/usr/bin/env python # find