在 Python 中进行类似 jquery 的 HTML 解析?
问题描述
是否有任何 Python 库可以让我解析类似于 jQuery 的 HTML 文档?
Is there any Python library that allows me to parse an HTML document similar to what jQuery does?
即我希望能够使用 CSS 选择器语法 从文档中抓取任意一组节点，读取它们的内容/属性等.
i.e. I'd like to be able to use CSS selectors syntax to grab an arbitrary set of nodes from the document, read their content/attributes, etc.
我以前使用过的唯一 Python HTML 解析库是 BeautifulSoup，尽管它很好，但我一直认为如果我有可用的 jQuery 语法，我的解析会更快.:D
The only Python HTML parsing lib I've used before was BeautifulSoup, and even though it's fine I keep thinking it would be faster to do my parsing if I had jQuery syntax available. :D
解决方案
如果你精通BeautifulSoup，您只需将 soupselect 添加到您的库中.
Soupselect 是 BeautifulSoup 的 CSS 选择器扩展.
If you are fluent with BeautifulSoup, you could just add soupselect to your libs.
Soupselect is a CSS selector extension for BeautifulSoup.
用法:
from bs4 import BeautifulSoup as Soup
from soupselect import select
import urllib
soup = Soup(urllib.urlopen('http://slashdot.org/'))
select(soup, 'div.title h3')
[<h3><span><a href='//science.slashdot.org/'>Science</a>:</span></h3>,
<h3><a href='//slashdot.org/articles/07/02/28/0120220.shtml'>Star Trek</h3>,
..]
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