Python -- Regex -- How to find a string between two sets of strings

2024/9/25 0:39:41

Consider the following:

<div id=hotlinklist><a href="foo1.com">Foo1</a><div id=hotlink><a href="/">Home</a></div><div id=hotlink><a href="/extract">Extract</a></div><div id=hotlink><a href="/sitemap">Sitemap</a></div>
</div>

How would you go about taking out the sitemap line with regex in python?

<a href="/sitemap">Sitemap</a>

The following can be used to pull out the anchor tags.

'/<a(.*?)a>/i'

However, there are multiple anchor tags. Also there are multiple hotlink(s) so we can't really use them either?

Answer

Don't use a regex. Use BeautfulSoup, an HTML parser.

from BeautifulSoup import BeautifulSouphtml = \
"""
<div id=hotlinklist><a href="foo1.com">Foo1</a><div id=hotlink><a href="/">Home</a></div><div id=hotlink><a href="/extract">Extract</a></div><div id=hotlink><a href="/sitemap">Sitemap</a></div>
</div>"""soup = BeautifulSoup(html)
soup.findAll("div",id="hotlink")[2].a# <a href="/sitemap">Sitemap</a>

https://en.xdnf.cn/q/71640.html

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