My first small crawler program-python

Source: Internet
Author: User
Tags server port

Climb anything. Server port proxy for the Crawling proxy Web site agent type location Update Date today score the overall rating available speed assessment information, such a Web page has seven or eight, fortunately, the site Ming name is very regular

In particular, the information in this HTML code that crawls a lot of

<span class= "Tbbottomline" style= "width:140px;" >
     58.222.254.11
 </span>
 <span class= "Tbbottomline" style= "width:50px;" >
         3128
 </span>
 <span class= "Tbbottomline" style= "width:70px;" >
     High Hide
 </span>
 <span class= "Tbbottomline" style= "width:70px;" >
     China
 </span>
 <span class= "Tbbottomline" style= "width:80px;" >
     September 05
 </span>
 <span class= "Tbbottomline" style= "width:80px;" >
     3.44 (70 votes)
 </span>
 <span class= "Tbbottomline" style= "width:60px;" >
     3.44
 </span>
 <span class= "Tbbottomline" style= "width:30px;" >
     14 days
 </span>
How to climb. Use this library in Python urllib2, of course, also use regular, here not to say that my is very complex (it is really unexpected how to simplify)
Import re import urllib2 orgi=r ' http://www.proxy360.cn/Region/' proxywebs=[', ' Brazil ', ' America ', ' Taiwan ', ' Japan ', ' Thailand ', ' Vietnam ', ' Bahrein '] def get_proxy_info (): F=open (' proxy.txt ', ' w+ ') p=re.compile ("<span[^&gt ;] *>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span>[\s]*<span[^>]*>[\s]* (\s+?) [\s]*</span> "") ' ' Server port agent kind of area update date today's score the overall rating available speed assessment ' for s ' in proxywebs:target=orgi+
        S Req=urllib2.urlopen (target) Mystr=req.read () Tmp=p.findall (mystr) for T in Tmp:f.writ E (' \ t '. Join (t)) f.write (' \ n ') F.flush () f.close () if __name__== "__main__": GET_PROxy_info () 

Principle, or process
Super simple, get the source code of the specified page, the return type is a string, we use regular expression to match to the part we want to grab, use the group to extract further, then save or after the data analysis, obviously this step I did not do

Attention matters

The encoding of the Web page is generally UTF8, in case it is not. When I write, save the time garbled, and then know to pay attention to the encoding format

Regular writing, this Test foundation, in fact, or else, you can be very dead to write, although I do not recommend, but I will only write this in the beginning

<span class= "Tbbottomline" style= "width:140px;" >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:50px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:70px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:70px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:80px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:80px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:60px"; >\r\n (. +?) \r\n</span>
<span class= "Tbbottomline" style= "width:30px"; >\r\n (. +?) \r\n</span>

It's bad, but I can climb down and-_-# results.

Note: Environment: python2.7 wingide

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.