python 使用 XPath 获取特定属性值
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时间:2020-11-04 00:09:20 来源:igfitidea点击:
Getting certain attribute value using XPath
提问by khelll
From the following HTML snippet:
来自以下 HTML 片段:
<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" />
I'm trying to get the href
value of the link
tag with rel value = "shortcut icon"
, I'm trying to achieve that using XPath.
我试图获得href
的价值link
与相对价值标签= "shortcut icon"
,我试图做到这一点使用XPath。
How to do that in Python?
如何在 Python 中做到这一点?
回答by MattH
Like this:
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']