Python

yield is a keyword similar to return, except that the function returns a generator.>>>DefCreateGenerator():...MyList=Range(3)...ForIInchMyList:...yield i*i ... >>> mygenerator = creategenerator () # create a Generator>>> print (mygenerator) #

First of all, the iterator, for string, list, dict, tuple and other such container objects, using for loop traversal is very convenient, in the background for statement on the container object object called the iteration () function, which is a

This one's bull X a little bit.This does not involve IO, if you call gevent such as asynchronous IO or non-blocking IO, there is a large framework.######################################################################Iterative server-webserver3a.py #

1. Tools Download:The Python tool consists of three: Python, Setuptools, Pip²python:http://python.org/getit/python development environment;²setuptools:http://pypi.python.org/pypi/setuptools/python's basic Package

Both of these methods in Python are done through decorators.Static Methods：You do not need to pass an instance of a class object or classYou can pass an instance of the class. Method name A (). foo () or class name. Method A.foo () name to

1. Import the corresponding package for the regular expression:1 ImportRe2 Re.search (pattern,string)3 Example:4Re.search ("[0123456789]","2")!=none#true to indicate a successful match. 5Re.search ("^[0123456789]$"," A")!=none#false to indicate that

First, let's take a look at the command: Pip install Uwsgi This command, by operation name, can be divided into three parts: Pip, install, and Uwsgi. Next, follow these three sections for an analysis. Pip Pip is similar to readhat under Yum,

Reprint: http://codego.net/9140379/A little messy late in the finishing1. In the case of non-blocking sockets where no data is available, recv throws an exception socket.error and the value of the exception will either Eagain or ewouldblock the

Python In addition to UnitTest, there is a faster nose,nose can be said to be a simplification of unittestBut he doesn't need unittest. That must have an intrinsic format, he only needs files, class names, method names, etc. containing test can

The sub-Community is a discussion group focusing on specific technical topics, where you can speak with like-minded partners. If a geek headline reader focuses on or joins the sub-community you create, they canSub-community, and in your own kanban,

First, built-in functions1. Mathematical Operation classABS (x) #求绝对值Divmod (A, b) #分别取商和余数float ([x]) #将一个字符串或数转换为浮点数. If no parameter is returned 0.0int ([x[, Base]]) #将一个字符转换为int类型, base represents the binaryLong ([x[, Base]])

First, in the automation test, encountered the verification code processing method has the following two kinds:1, search for development to remove the verification code or the use of universal Verification code2. Automatic recognition using OCRHere,

1, use, remove the extra line break >>> for I in Range (0,5):... print I...01234>>> for I in Range (0,5):... print I,...0 1 2) 3 4It is obvious that the print statement defaults to a newline followed by a comma followed by a newline that becomes a

Python list (Lists)Python list (Lists) Sequence is the most basic data structure in Python. Each element in the sequence is assigned a number-its location, or index. The first index is 0, the second index is 1, and so on. Python has six built-in

Python exception and abnormal mac address [Root @ pc0003 MySQL-python-1.2.5] # yum install MySQL-python #! /Usr/bin/python # coding = UTF-8 ''' dependent on MySQLdb python library depends on host = "192. 168. ****. * ** ", user =" ***** ", passwd ="

Function Definition instance analysis in python development and python instance analysis This article describes how to define functions in python development. We will share this with you for your reference. The details are as follows: Below are some

Three implementation methods for getting started with Python programming: Hello World This article describes how to implement Hello World in Python programming. We will share this with you for your reference. The details are as follows: Method 1:

Method for searching local files based on thread in python Development, This example describes how to search for local files based on thread in python development. We will share this with you for your reference. The details are as follows: Let's

Example of pygame mouse event usage in Python, pythonpygame This article describes the usage of pygame mouse events in Python. We will share this with you for your reference. The details are as follows: Pygame. mouse provides some methods to get the

Python pygame Installation Method, This article describes how to install pygame in Python. We will share this with you for your reference. The details are as follows: Here we will mainly describe how to install pygame. Like me, many people may find