Python

First, the functionFunction: You can calculate a return value, maximize code reuse, minimize code redundancy, and process decomposition.1, function-related statements and expressionsStatement ExampleCalls myfunc (' diege ', ' eggs ', meat= ' lit ') #

Turn http://m.blog.csdn.net/blog/wice110956/26597179#Here we discuss the following five types of compressed files extracted using Python:. gz. Tar. tgz. zip. rarBrief introductionGZ: That is, gzip, usually only one file can be compressed. Combined

First step: Upgrade DTC Comiler ro enable SPIWget-c https://raw.githubusercontent.com/RobertCNelson/tools/master/pkgs/dtc.shchmod +x dtc.sh./dtc.shReference URL:

Chapter I basic knowledge achieve two-digit integer division: Use the command switch-qnew (? ); use a double slash. From The future Import Division performs normal division as the calculator. Exponentiation Operator: 2 * * 3 (8),

  Self-learning python, many places need to be a bad supplement. The     three functions are similar, and are all built-in functions that are applied to a sequence. Common sequences include list, tuple, and Str. The  1.map function map function maps

There is time today, add a python encounter a problem, and then extend a series of questions, about slice,step and carefully study the next stride calculation method, the results of 2 hours or so, the introduction is painful ah, gossip not much to

(i) Understanding decision Trees1, decision tree Classification principleRecent surveys have shown that decision trees are also the most frequently used data mining algorithms, and the concept is simple. One of the most important reasons why a

#-*-Coding:utf-8-*-#__author__ = ' Administrator '#一般使用2种方法来解决这个问题isinstance basestring to simply and quickly check the type of a stringdef isstring (obj):Print Isinstance (obj,basestring)It is normal for #如果你第一个想到 (novice) to use Type (obj), but in

My first contact with the crawler this thing is in this year's May, then wrote a blog search engine, the use of the crawler is also very smart, at least more than the film to the station used by the crawler level is much higher!Back to the topic of

http://blog.csdn.net/pipisorry/article/details/39854707Setting up a python development environment in Ubuntu 12.04First, the use of the system and softwareUbuntu 12.04Python 2.7.3Django 1.4.2Pycharm 2.6.3Postgresql

Following excerpt from: http://www.jb51.net/article/17560.htmWhy Python Use the process will appear a variety of garbled problems, obviously the Chinese characters are displayed as "\xe4\xb8\xad\xe6\x96\x87" form?Why is the error "Unicodeencodeerror:

In some cases, we need to do something about the list, such as multiplying each element in the list by 2, which is generally the traversal of each element multiplied by 2. Then it will be two lines to write it down. And this will modify the original

Tutorial on using Python scripts to operate tables under Gnumeric, gnumericpython About Gnumeric Gnumeric is a powerful and easy-to-use spreadsheet software on the linux platform. It is consistent with other commonly used spreadsheet software such

Introduction to division and power operations in Python, and Division operations in python No matter what language, you can't do without the addition, subtraction, multiplication, division algorithms. But in Python, do you know what operations these

Describes Python iterators, generators, and related itertools packages. For mathematicians, The Python language attracts many people. For example, the tuple, lists, sets, and other containers are supported by symbol marking similar to traditional

Python uses PythonMagick to convert JPG images to ico images, This example describes how python converts JPG images to ico Images Using PythonMagick. Share it with you for your reference. The specific analysis is as follows: The PythonMagick

Example of Flask getting started Tutorial: Set up a static blog and flask getting started tutorial There are many popular static blog/website generation tools, such as Jekyll, Pelican, Middleman, and Hyde. StaticGen lists some of the most popular

Example of the message digest algorithm implemented by Python and GO, pythongo Common message digest algorithms include MD5 and SHA. These algorithms are available in the python and go libraries and can be called as needed. Here we will summarize

Zero-Basic python crawler-based HTTP Exception Handling and python exception handling Let's talk about HTTP exception handling.When urlopen cannot process a response, urlError is generated.However, Python APIs exceptions such as ValueError and

QQ online status check script (20141022 test successful), online status 20141022 Import time, datetime import urllib2 def chk_qq (qqnum): chkurl = 'HTTP: // wpa.paipai.com/pa? P = 1: '+ 'qqnum' +': 17'a = urllib2.urlopen (chkurl) length =. headers.