Python

Copy codeThe Code is as follows:Import socketImport QueueImport threading Def worker ():While True:I = q. get ()Conn = I [0]Addr = I [1]While 1:Sms = conn. recv (1024)If sms! = "":Print "Message from (" + str (addr [0]) + ":" + str (addr [1]) + "):"

1. Copy the following code to a file named asyncore. py. Copy codeThe Code is as follows:Import socketImport selectImport sys Def ds_asyncore (addr, callback, timeout = 5 ):S = socket. socket (socket. AF_INET, socket. SOCK_STREAM)S. connect (addr)R,

The and or in python are very different from those in other languages.Both and or in other languages return bool results. python is not. It returns one of the values for the and or operations.The value determines the value of this expression and

1.Use the default session. In the INI file:Copy codeThe Code is as follows:From pyramid. session import UnencryptedCookieSessionFactoryConfigMy_session_factory = UnencryptedCookieSessionFactoryConfig ('itsaseekreet ') From pyramid. config import

[Error 2] The system cannot find the file specified Solution:1. Add the environment variable path:C: \ Python32 \ Tools \ Scripts; D: \ Python32; D: \ Program Files \ Sublime Text2;2. Python. sublime-build content modificationOriginal content:

This is the ability to obtain URLs using different protocols. It also provides a complex interface to handle general situations, such as basic verification, cookies, proxies, and others.They are provided through handlers and openers objects.Urllib2

Preparations Development Environment: python2.6, reportlab Prepare a Chinese font file: simsun. ttc Code: Copy codeThe Code is as follows:#! /Usr/bin/env python2.6# Coding: UTF-8 Import traceback From reportlab. graphics. shapes import DrawingFrom

Proxy Settings By default, urllib2 uses the environment variable http_proxy to set HTTP Proxy. If you want to explicitly control the Proxy in the program without being affected by environment variables, you can use the following method: Copy codeThe

Python can return multiple values, which is really convenient.Only one value can be returned for return in the function, but the return type is not limited.Therefore, we can "return a tuple type to indirectly return multiple values ".The example is

Install the corresponding library. I use PyV8. Note that the function written in it must be enclosed (). Copy codeThe Code is as follows:Import PyV8 Class Test (): Def js (self ): Ctxt = PyV8.JSContext () Ctxt. enter () Func = ctxt. eval ('''

Copy codeThe Code is as follows:Def get_area_list (self ):"Retrieve region, province, and city name dictionaries """Page = urllib2.urlopen (self. xml_url). read ()Area_list = {}Root = ElementTree. fromstring (page)# Reading text in xml formatFor

The test. conf file is as follows: Copy codeThe Code is as follows:[First]W = 2V: 3C = 11-3 [Second] Sw = 4Test: hello There are two areas in the test configuration file: first and second. In addition, some spaces and line breaks are intentionally

RPC is short for Remote Procedure Call. It is a Remote method Call technique that calls a process (method) on a local machine, this process is also known as "Distributed Computing". It is a technology invented to improve the interoperability between

Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*- Class Heap (object ): @ ClassmethodDef parent (cls, I ):"Parent subscripts """Return int (I-1)> 1 ); @ ClassmethodDef left (cls, I ):"Left son subscript """Return (I @ ClassmethodDef right (cls,

Python algorithm learning-counting sorting instance Copy codeThe Code is as follows:#-*-Coding: UTF-8 -*- Def _ counting_sort (A, B, k ):"Counts are sorted. The pseudo code is as follows:COUNTING-SORT (A, B, k)1 for I defaults 0 to k // initialize

The base sorting method is also called bucket sort or bin sort. As the name suggests, it distributes the elements to be sorted to some "buckets" based on some key-value information, base sorting is a stable sorting. the time complexity is O (nlog (r)

The main functions are implemented in the copyFiles () function as follows: Copy codeThe Code is as follows:Def copyFiles (src, dst ):SrcFiles = OS. listdir (src)DstFiles = dict (map (lambda x: [x, ''], OS. listdir (dst )))FilesCopiedNum = 0# Copy

For many verification code solutions, this API has the heavyweight operator of China Telecom, which is reliable and free of charge. For more information, see: http://open.189.cn Usage:# Define app_id and app_secretR = RandCode ('app _ id', 'app _

Analysis A number is often a group of three numbers followed by a comma. Therefore, the rule is :***,***,*** Regular ExpressionCopy codeThe Code is as follows:[A-z] +, [a-z]? Copy codeThe Code is as follows:Import re Sen = "abc, 123,456,789, mnp"P =

Copy codeThe Code is as follows:#-*-Coding: utf8 -*-'''Created on 2013-12-19 @ Author: good-temper''' Import urllib2Import urllibImport cookielibImport reImport bs4 URL_BAIDU_INDEX = u'http: // www.baidu.com /';# Https://passport.baidu.com/v2/api?