Matching partial ids in BeautifulSoup

Question

I’m using BeautifulSoup. I have to find any reference to the <div> tags with id like: post-#.

For example:

<div id="post-45">...</div>
<div id="post-334">...</div>

I have tried:

html = '<div id="post-45">...</div> <div id="post-334">...</div>'
soupHandler = BeautifulSoup(html)
print soupHandler.findAll('div', id='post-*')

How can I filter this?

Asked By: Max Frai

||

Source

Answer 1

You can pass a function to findAll:

>>> print soupHandler.findAll('div', id=lambda x: x and x.startswith('post-'))
[<div id="post-45">...</div>, <div id="post-334">...</div>]

Or a regular expression:

>>> print soupHandler.findAll('div', id=re.compile('^post-'))
[<div id="post-45">...</div>, <div id="post-334">...</div>]

Answered By: Mark Byers

Answer 2

soupHandler.findAll('div', id=re.compile("^post-$"))

looks right to me.

Answered By: Auston

Answer 3

Since he is asking to match “post-#somenumber#”, it’s better to precise with

import re
[...]
soupHandler.findAll('div', id=re.compile("^post-d+"))

Answered By: xiamx

Answer 4

This works for me:

from bs4 import BeautifulSoup
import re

html = '<div id="post-45">...</div> <div id="post-334">...</div>'
soupHandler = BeautifulSoup(html)

for match in soupHandler.find_all('div', id=re.compile("post-")):
    print match.get('id')

>>> 
post-45
post-334

Answered By: Web-GIS entrepreneur

Matching partial ids in BeautifulSoup

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