LB40 LB40 - 3 months ago 17
Python Question

Test if an attribute is present in a tag in BeautifulSoup

I would like to get all the

<script>
tags in a document and then process each one based on the presence (or absence) of certain attributes.

E.g., for each
<script>
tag, if the attribute
for
is present do something; else if the attribute
bar
is present do something else.

Here is what I am doing currently:

outputDoc = BeautifulSoup(''.join(output))
scriptTags = outputDoc.findAll('script', attrs = {'for' : True})


But this way I filter all the
<script>
tags with the
for
attribute... but I lost the other ones (those without the
for
attribute).

Answer

If i understand well, you just want all the script tags, and then check for some attributes in them?

scriptTags = outputDoc.findAll('script')
for script in scriptTags:
    if script.has_attr('some_attribute'):
        do_something()