pyQuery 是 jQuery 在 python 中的实现，能够以 jQuery 的语法来操作解析 HTML 文档，十分方便。使用前需要安装，easy_install pyquery 即可，或者 Ubuntu 下
sudo apt-get install python-pyquery |
以下例子：
from pyquery import PyQuery as pyq doc=pyq(url=r‘http://list.taobao.com/browse/cat-0.htm‘) cts=doc(‘.market-cat‘) for i in cts: print ‘====‘,pyq(i).find(‘h4‘).text() ,‘====‘ for j in pyq(i).find(‘.sub‘): print pyq(j).text() , print ‘\n‘ |
--------------- my code --------------------
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for
i in
cts: print
‘-‘*10,pyq(i).find(‘h4‘).text() for
j in
pyq(i).find(‘.subtitle‘): print
pyq(j).text() print
‘\n‘ for
j in
pyq(i).find(‘.sublist‘): print
‘\t‘,pyq(j).text() print
‘\n‘ |
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You can use the PyQuery class to load an xml document from a string, a lxml document, from a file or from an url:
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>>> from
pyquery import
PyQuery as pq>>> from
lxml import
etree>>> import
urllib>>> d =
pq("<html></html>")>>> d =
pq(etree.fromstring("<html></html>"))>>> d =
pq(url=your_url)>>> d =
pq(url=your_url,... opener=lambda
url, **kw: urlopen(url).read())>>> d =
pq(filename=path_to_html_file) |
支持大部分jQuwey转换方法。这里是一些实例。
>>> d(‘p‘).filter(‘.hello‘)
[<p#hello.hello>]
>>> d(‘p‘).eq(0)
[<p#hello.hello>]
>>> d(‘p‘).find(‘a‘)
[<a>, <a>]
>>> d(‘p‘).eq(1).find(‘a‘)
[<a>]
>>> d(‘p‘).find(‘a‘).end()
[<p#hello.hello>, <p#test>]
>>> d(‘p‘).eq(0).end()
[<p#hello.hello>, <p#test>]
>>> d(‘p‘).filter(lambda i: i == 1).end()
[<p#hello.hello>, <p#test>]
原文：http://www.cnblogs.com/lizunicon/p/3515983.html