使用XPath获取某些属性值

Question

从以下HTML代码段:

<link rel="index" href="/index.php" />
<link rel="contents" href="/getdata.php" />
<link rel="copyright" href="/blabla.php" />
<link rel="shortcut icon" href="/img/all/favicon.ico" />

我试图获得href的价值link标签与相对值= "shortcut icon",我试图做到这一点使用XPath.

如何在Python中做到这一点？

Answer 1

像这样:

data = """<link rel="index" href="/index.php" />
<link rel="contents" href="/getdata.php" />
<link rel="copyright" href="/blabla.php" />
<link rel="shortcut icon" href="/img/all/favicon.ico" />
"""

from lxml import etree

d = etree.HTML(data)

d.xpath('//link[@rel="shortcut icon"]/@href')
['/img/all/favicon.ico']