如何使用python解析包含CSS和HTML的网页 [英] How to parse a web page containing CSS and HTML using python

问题描述

我试图从包含CSS以及HTML的网页上解析和提取一些信息.我为此使用cssutils和beatifulsoup.可以说我想找出用于表标题的字体大小. Beautifulsoup告诉我表定义在HTML中的位置.但是，如果我想知道表中使用了哪种样式，是否可以从BeatifulSoup获得该信息?如果没有，我该如何解决这个问题.谢谢你的帮助.

Am trying to parse and extract some information from a web page that contains CSS and of course HTML. I am using cssutils and beatifulsoup for this. Lets say I want to find out the font size used for a table heading. Beautifulsoup tells me where the table definition is in HTML. But if I want to know which style is used in the table do I get that information from BeatifulSoup? If not how do I go about solving this problem. Thanks for any help.

推荐答案

是的. BeautifulSoup 是完美的选择，并且使用正则表达式具有强大的功能:)

Yes you get it. BeautifulSoup is perfect the choice and with regular expression is strong power :)

示例:

import re
from BeautifulSoup import BeautifulSoup


soup = BeautifulSoup('<h1 style="font-size: 12px; margin: 5px">Test</h>')
style = soup.find('h1')['style']
re.findall('font-size[^;]+', style)
# [u'font-size: 12px']

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