top python web frameworks

Introduction of Flask Flask is a Python-implemented WEB development micro-framework. Official website: http://flask.pocoo.org/ Second, Demo 1, Code structure Copy Code code as follows: . ├──blog.py ├──static │├──css ││└──index.css │├──images ││├──cat.jpg ││└──sheying1229.jpg │└──js └──templates ├──index.html ├──login.html ├──regist.html └──upload.html 5 di

(pattern, REPL, string[, Count]):Returns (Sub (REPL, string[, Count]), number of replacements).Import re p = re.compile (R ' (\w+) (\w+) ') s = ' I say, hello world! ' Print p.subn (R ' \2 \1 ', s) def func (m): return M.group (1). Title () + "+ m.group (2)." title () Print p.subn (func , s) # # # output # # # (' Say I, World hello! ', 2) # (' I say, hello world! ', 2)At this point, the python regular expression basic introduc

For a long time client, mainly engaged in the development of Android software and Unity 3D game development, before also looked at the Java Web for some time, but because there is no practical application, so it was shelved for a long time. Recently suddenly have a strong interest in server background programming, want to try to use Python + Mongo db for the development of the game background.

This article mainly introduced Python Deployment Web development program Several methods, has the very good reference value. Let's take a look at the little series. 1, fastcgi, through the Flup module to support, in Nginx corresponding configuration instructions are Fastcgi_pass 2, Http,nginx use Proxy_pass forwarding, this requires the backend appplication must be built to handle high-concurrency HTTP ser

module, do not recommend the use from ... import ...Old_url = ' http://www.zhubajie.com/wzkf/th1.html 'User_agent = ' mozilla/5.0 (Windows; U Windows NT 6.1; En-us; rv:1.9.1.6) gecko/20091201 firefox/3.5.6 '#设置初始值old_url, User_agent#User-agent: Some servers or proxies will use this value to determine whether the request is made by the browser, where User-agent is set to disguise as a browserValues = {' name ': ' Michael Foord ',' Location ': ' Northampton ',' Language ': '

Python web framework learning notes and pythonweb learning notes I. Nature of web Framework 1. handle requests by yourself based on socket #! /Usr/bin/env python3 # coding: utf8import socketdef handle_request (client): # receive request buf = client. recv (1024) print (buf) # return information client. send (bytes (' 2. wsgi-based WSGI, short for

The Python programming language is a dynamic language. He can do a lot of things, and let's look at how the Python programming language is written on the web. This is a great attraction for many programmers. I hope you have something to gain. Python's web framework If you want to use

Python crawls web pages and parses instances, and python crawls This article describes how Python can capture and parse web pages. This article mainly analyzes the Q A and Baidu homepage. Share it with you for your reference. The main function code is as follows: #! /Usr/bi

Multi-thread web crawler based on python and multi-thread python Generally, there are two ways to use a Thread. One is to create a function to be executed by the Thread, and pass the function into the Thread object for execution. the other is to inherit from the Thread directly, create a new class, and put the code executed by the Thread into this new class. Impl

General web site will have robots.txt files, in this file to allow web crawler access to the directory, also provides a directory to prohibit crawler access.The reason to pay attention to this file is that access to the Forbidden directory will be banned from your IP address accessThe following defines a Web site map crawler,def crawl_sitemap (URL): # Download

: If Hasattr (E, ' Code ') and # Retry 5XX HTTP Errors html = download4 (URL, user_agent, num_retries-1) return HTML5. Support AgentSometimes we need to use a proxy to access a website. For example, Nteflix shielded most countries outside the United States. We use the requests module to implement the function of the network agent.Import Urllib2Import Urlparsedef download5 (URL, user_agent= ' wswp ', Proxy=none, num_retries=2): "" "Download function

Python is a dynamic, object-oriented language. It was originally designed as an object-oriented language, and later added some more advanced features. In addition to the language itself, the Python standard library is well worth praising, and Python even has its own servers. In other ways, Python has plenty of free dat

Baidu Post Bar web crawler instance based on Python, python Crawler This article describes the web crawler of Baidu post bar based on Python. Share it with you for your reference. The details are as follows: Click here to download the complete instance code. Project content:

Reference:http://www.52nlp.cn/python-%e7%bd%91%e9%a1%b5%e7%88%ac%e8%99%ab-%e6%96%87%e6%9c%ac%e5%a4%84%e7%90%86 -%e7%a7%91%e5%ad%a6%e8%ae%a1%e7%ae%97-%e6%9c%ba%e5%99%a8%e5%ad%a6%e4%b9%a0-%e6%95%b0%e6%8d%ae%e6%8c%96%e6%8e% 98A Python web crawler toolsetA real project must start with getting the data. Regardless of the text processing, machine learning and data mini

Python exercises, web crawlers (beginner), and python exercises Crawlers Recently, I am still reading the Python version of rcnn code, with a small web crawler program for Python programming. In fact, the process of capturing a we

The crawler production of Baidu Post Bar is basically the same as that of baibai. Key Data is deducted from the source code and stored in the local TXT file. Project content: Web Crawler of Baidu Post Bar written in Python. Usage: Create a new bugbaidu. py file, copy the code to it, and double-click it to run. Program functions: Package the content published by the poster in the Post Bar and store the TXT

As we all know, for all Web applications, is essentially a socket server, the user's browser is actually a socket client.A simple socket code that can be accessed by a browser:#!/usr/bin/envpython#coding:utf-8importsocket defhandle_request (client): buf=client.recv (1024x768) client.send ("http/1.1200ok\r\n\r\n") client.send ("Hello, seven ") defmain (): sock=socket.socket (Socket.AF_INET , socket. Sock_stream) sock.bind ((' localhost ', 8000)) sock.

gateway, that is, gateways. The purpose of a gateway is to convert between protocols. WSGI is a low-level interface between a Web server and a Web application or application framework to enhance the common denominator of portable web application development. WSGI is designed based on the existing CGI standards. Many framewor