Python crawlers crawl the image address instance code on a webpage,

Python crawlers crawl the image address instance code on a webpage,

The example in this article is to crawl an image address on a webpage, as shown below.

Read the source code of a web page:

Import urllib. requestdef getHtml (url): html = urllib. request. urlopen (url). read () return htmlprint (getHtml (http://image.baidu.com/search/flip? Tn = baiduimage & ie = UTF-8 & word = % E5 % A3 % 81% E7 % BA % B8 & ct = 201326592 & lm =-1 & v = flip ))

Use a regular expression to crawl an image address on a webpage:

Import reimport urllib. requestdef getHtml (url): html = urllib. request. urlopen (url ). read () return htmldef getImg (html): r = R' "thumbURL": "(http: // img. +? \. Jpg) "'# define regular imglist = re. findall (r, html) return imglisthtml = str (getHtml (" http://image.baidu.com/search/flip? Tn = baiduimage & ie = UTF-8 & word = % E5 % A3 % 81% E7 % BA % B8 & ct = 201326592 & lm =-1 & v = flip ")) print (getImg (html ))

Running result:

Summary

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