How to extract the attribute's value in python?

Question

I have a html file say:

<html>...  
  <li id="123"></li>
  <li id="3455"></li>
  ....
</html>

how do I get the value for all the ids alone in python using BeautifulSoup ? the desired output is : ["123","3455"]

Ansari · Accepted Answer · 2012-07-13 23:26:53Z

2

To get the list you want, use a list comprehension. It can be done in one line as follows (last line):

html = '<html> <li id="123"></li><li id="3455"></li> </html>'
soup = BeautifulSoup(html)

attrs = [li['id'] for li in soup.find_all('li')]

answered Jul 13, 2012 at 23:26

Ansari

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2 Comments

Ansari Over a year ago

You're welcome @Abhinav - I saw your edit, but find_all is the current syntax for BeautifulSoup, and findAll for BS 3 - but it works in BS 4 as well.

abhixec Over a year ago

Ok ! i am using bs3 i guess... so it didn't work for me, good to know that.

Joel Cornett · Accepted Answer · 2012-07-13 23:44:53Z

0

from BeautifulSoup import BeautifulSoup

foo = '<html> <li id="123"> </li> <li id="3455"></li> </html>'

soup = BeautifulSoup(foo)

for id in soup.html.findAll('li'):
    print id['id']

edited Jul 13, 2012 at 23:44

Joel Cornett

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answered Jul 13, 2012 at 23:21

Uncle Long Hair

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