scrape data from website python

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I heard that Python is very convenient to do web crawler, just this few days units also have such needs, the need to visit XX website to download some documents, so that their own personal test, the effect is good. In this example, a website that is logged in needs to provide a username, password, and verification code that uses Python's urllib2 to log in direct

Author: Flyingis You are welcome to repost this article, but please note the author and original article links, Prohibited for commercial purposes! The USGS official website updates the world's earthquake information in real time every day, including the location, coordinates, magnitude, and distance from the epicenter to the Earth's surface. The coordinate system uses the central coordinate system WGS84, how to collect these real-time information int

Python study note 23: setting up a simple blog website with Django (1) 1. Create a project command: Django-admin startproject mysite # Some need to enter: Django-admin.py startproject mysite You will find that a folder mysite is generated under the current directory, and its structure is: Mysite/Manage. pyMysite/_ Init. pySettings. pyUrls. pyWsgi. py Where: Manage. py: a command line tool that can call

A powerful web crawler System compiled by Chinese people with powerful WebUI. It is written in Python and has a distributed architecture. it supports multiple database backends. the powerful WebUI supports script editor, task monitor, project manager, and result viewer background: PySpider: a powerful web crawler System compiled by Chinese people with powerful WebUI. It is written in Python and has a distr

Example of implementing multi-concurrent Website access using Python This example describes how to implement the multi-concurrent Website access function in Python. The details are as follows: # Filename: visitweb_threads.py # Description: python visit web, get startTime, e

requests from crawlers.In this case, we need to pretend to be a browser, which can be achieved by modifying the header in the HTTP packet. #…headers = { 'User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6'}req = urllib2.Request( url = 'http://secure.verycd.com/signin/*/http://www.verycd.com/', data = postdata, headers = headers)#... 11. Deal with "anti-leeching"Some sites have so-called a

An example of script maintenance is a bit messy, just as an instance, demonstrating how to quickly use the tool to quickly achieve the goal:Application: shell and python data interaction, data capturing, and Code Conversion Copy codeThe Code is as follows:# Coding: UTF-8#! /Usr/bin/python'''Program Description: apache

BT website-Osho Magnetic-python development Crawler instead of. NET write crawler, mainly demonstrates the access speed and index efficiency in about 10 million of the hash record.Osho Magnetic Download-http://www.oshoh.com is now using the Python +centos 7 systemOsho Magnetic Download (www.oshoh.com) has undergone multiple point technical changes. The open sourc

Python automatically logs on to the website (processing cookies) Blog type: Python Python code Def login (): Cj = cookielib. cookiejar () Opener = urllib2.build _ opener (urllib2.httpcookieprocessor (CJ )) Login_url = r'http: // zhixing.bjtu.edu.cn/member.php? MoD = Logging Action = login loginsubmit = Yes

1 PrefaceThis small program is used to crawl novels of the novel website, the general pirate novel sites are very good crawlBecause this kind of website basically has no anti-creeping mechanism, so can crawl directlyThis applet takes the website http://www.126shu.com/15/download full-time Mage as an example2.requests LibraryDocument: http://www.python-requests.or

= ConfigSelf.dbclient = mongoclient (' 192.168.86.126 ', 27017)Self.pre_day = ' 'Self.sites=[]Self.s=requests. Session ()Self.__init_login ()def __init_login (self):TrySelf.s.post (Self.config.loginurl,data=self.config.predata,headers=self.config.headers)Time.sleep (Random.random ())R = Json.loads (Self.s.get (self.config.url_list). Content)Print RFor temp in r[' data ' [' list '] [' Items ']:If Isinstance

This article mainly introduces the Python crawler to simulate logon to a website with a verification code. If you need it, you can refer to the questions you may encounter when crawling a website, this requires methods related to simulated logon. Python provides a powerful url library. It is not difficult to achieve th

When you use Python to collect data from some websites, you often encounter situations where you need to log in. In these cases, when using a browser such as Firefox to log in, the debugger (shortcut key F12) can see the log in when the Web page to the server to submit information, this part of the information can be extracted from the Python urllib2 library with