Matching partial ids in BeautifulSoup

Question

I\'m using BeautifulSoup. I have to find any reference to the

tags with id like: post-#.

For example:

相关标签:

Answer 1

Since he is asking to match "post-#somenumber#", it's better to precise with

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

Answer 2

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

looks right to me.

Answer 3

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

Answer 4

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>]