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Summary of 80 typical Python documents (tutorials + source code + tools)-download directory. Hello everyone, the 51cto download center collects 80 Python documents based on the popularity and praise of the materials, share it with Python developers. The content includes 1 Python
If you select a scripting language, you have to endure its speed. this statement illustrates to some extent the shortcomings of python as a script, that is, the execution efficiency and performance are not ideal, especially on machines with poor performance, it is necessary to optimize code to improve the execution efficiency of programs. how to optimize Python p
Convert text to image font in python,
The previous blog post mentioned how to get a Chinese Character Font. This article describes how to convert words into images one by one, which is useful in machine learning.
In a word, use pygame to render text to the image.
The code below.
Import osimport pygamechinese_dir
CKeditor can be used in the background article editor when a website is built using Flask. CKeditor supports many text styles and is open-source, here, let's take a look at the CKeditor tutorial integrated with CKeditor rich text editor in the Python Flask framework. CKeditor is currently one of the best visible web editor, which is written in JavaScript. It has
1. Install the required modules for python2.7RequestsSetuptools2. Prepare the data source text in the following format:apay_fail:87bpay_fail:432coty_fail:266Dfund_fail:33fpay_fail:61...3. Code Interpretationname:push.py#!/usr/bin/python27#-*-coding:utf8-*-importrequestsimporttimeimportjsonts=int ( Time.time ()) resultlog= '/home/work/monitor/logs/result.log ' #文本转为字典格式的函数def load_source_ Dictfile (filename)
handle non-file-name strings.#example.py##Example of using Shell-wildcard style matching in list comprehensions fromFnmatchImportFnmatchcase as Matchaddresses= [ '5412 N CLARK ST', '1060 W ADDISON ST', '1039 W GRANVILLE AVE', '2122 N CLARK ST', '4802 N BROADWAY',]a= [addr forAddrinchAddressesifMatch (addr,'* ST')]Print(a) b= [addr forAddrinchAddressesifMatch (addr,'54[0-9][0-9] *clark*')]Print(b)>>> ================================ RESTART ================================>>> ['
The existing plain text titled Test.txt, which counts the number of occurrences of the word.Content of Test.txt:I have the application Someday Oneday day DemoI have some one coma ideal naive ICode implemented in Python:Import reCount = {}f = open (' Test ', ' R ')b = F.read ()#print bcd = Re.split (' [\\n]+ ', b) #注意split的用法Print CDFor I in CD:Count[i] = Count.get (i,0) + # Note the use of the Get () methodPrint CountResults obtained after executing t
join.The code is as follows:>>> A ='Qwer'>>> B ='+'. Join (a)>>>b'Q+w+e+r'>>> c="'. Join (a)>>>C'Qwer'>>> d =' '. Join (a)>>>D'Q W e r'If you want to stitch together strings stored in some variables, use the string formatting operator%Example: largestring = '%s%s something%s yet more '% (SMALL1,SMALL2,SMALL3)to reverse a string character by word
Task:Reverse the string literal character or word by phrase.Solution:The string cannot be changed,
Handle_starttag, Handle_startendtag, Handle_endtag, Handle_data, and so on.
such as the Handle_starttag method, is called when entering a label. We can implement this method when we can get the tag tag that is being processed at this time, and all attribute attrs.
We can check whether the tag, Attrs is in the whitelist, and some special tags and attributes for special treatment, as follows:
Ii. Special handling of links
Some properties are possible to execute JavaScript
This article mainly introduces the output in Python large ASCII text, WordArt, character tips, this article first gives the large ASCII text, WordArt, character characters of the image effect, and then give the implementation of Python, the need for friends can refer to the
The co
used in all current browsers.
feedparser– parsing Rss/atom feeds.
Markupsafe– provides a secure escape string for xml/html/xhtml.
xmltodict– A Python module that allows you to feel like you are working with JSON when working with XML.
xhtml2pdf– convert Html/css to PDF.
The untangle– easily transforms an XML file into a Python object.
Clean
bleach– Clean u
ObjectiveIn the judgment of the results, often want to determine whether an element exists in the specified text, such as the login to determine whether the account is the user's user name.In the previous login case, a simple method was written, but not common, in the EC module there is a method that can be specifically used to determine the element in the existence of the specified text: text_to_be_present
In order to make the output more beautiful and eye-catching, sometimes you need to add some color to the Python output characters, very simple to share the following method:Format: \033[display mode; foreground color; background colour mForeground background color---------------------------------------30 40 Black31 41 Red32 42 Green33 43 Yellow34 44 Blue35 45 Purplish red36 46 Cyan Blue37 47 WhiteMeaning of display mode-------------------------0 Termi
We need to start thinking about how to translate a collection of text into quantifiable things. The easiest way to do this is to consider word frequency.
I will try not to use NLTK and Scikits-learn packages. We first use Python to explain some basic concepts.
Basic frequency
First, let's review how to get the number of words in each document: a frequency vector.
#examples taken from here:http://
optimization, and if the comment line is used instead of the first if, the run time is approximately 6.17.
Optimization of strings
The string object in Python is immutable, so the manipulation of any string, such as stitching, modification, and so on, will result in a new string object, not based on the original string, so this continuous copy will somewhat affect the performance of Python. Optimization of
Sublime Text is a powerful and highly extensible IDE that enables code intelligence and autocomplete by installing the Sublimecodeintel plugin for it.Currently the plugin supports the following languages:
JavaScript, Mason, XBL, XUL, RHTML, SCSS, Python, HTML, Ruby, Python3, XML, Sass, XSLT, Django, HTML5, Perl, CSS, Twig, Le SS, Smarty, node. js, Tcl, T
The example in this article describes how Python counts the number of rows in a text that repeats. Share to everyone for your reference. The implementation methods are as follows:
For example, there is a file below2312We are looking forward to2,23,11,1
The way to solve the problem:
The occurrence of the text as a key, the number of occurrences as value, and th
Reference:https://www.zhihu.com/question/22904994Http://www.cnblogs.com/luoshupeng/archive/2013/09/09/3310777.htmlDescriptionEnvironment: WIN10Software: Sublime Text31. Open Sublime Text 3 to install the package controlTo use CTRL + ' shortcut keys or open the command line from the View->show console menu, paste the following code:
import urllib.request,os; PF = ' package control.sublime-package '
Demand:
To handle a configuration file, take out the available character stitching, the following is the original text, we want to get this result,
Redis-h 127.0.0.1-p 6379 | Select 2Redis-h 127.0.0.1-p 6379 | Select 16Redis-h 127.0.0.1-p 6379 | Select 8
Original text:
The code is as follows
Copy Code
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