How to catch AttributeError?

Question

How can I catch AttributeError from this line and print message to the user, let’s say "you can’t change class="post" "

post_start = re.search('<div class="post">', html)

I tried with try, except AttributeError, raise, print but it’s always returning nothing.
That’s what I did:

try:
    post_start = re.search('<div class="post">', html)
except AttributeError:
    raise
else:
    print 'you can't change <div class="post">'

||

Answer 1

re.search() returns None if no position in the string matches the pattern. Check for None and raise an exception:

post_start = re.search('<div class="post">', html)
if post_start is None:
    raise AttributeError('you can't change <div class="post">')

Answered By: alecxe

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