Re: Create new soup object from existing tag objects (get rid of a wrapping tag)
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Aron Griffis
May 20, 2013, 2:49:48 PM5/20/13
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Jan-Philip Gehrcke wrote: [Fri May 17 2013, 11:46:55AM EDT]
> Generally spoken, my question is if we can create a new
> bs4.BeautifulSoup object from a collection of existing tags.
Slightly on a tangent from your original question, creating a new
soup object from an existing tree is something I've wondered
about too.
BeautifulSoup doesn't seem to provide much in the way of
a functional interface; every operation mutates the tree rather
than returning a new data structure. So the best answer it
probably to copy then extract, like this:
>>> soup = BeautifulSoup('<script>x=3</script>', 'html5lib')
>>> script = copy.deepcopy(soup).find('script').extract()
>>> print script
<script>x=3</script>
>>> print soup
<html><head><script>x=3</script></head><body></body></html>
I don't know if that's interesting or helpful to you. The other
replies regarding the "hidden" attribute are probably more
useful. But it will be helpful for me to have this technique of
extracting a subtree in the future.
In particular it might be helpful for form handling similar to
what I mentioned regarding WebTest on the "ampersands" thread
(accidental subject that I forgot to fix before posting). It
seems like a better approach to extract the "form" subtree as
objects without serializing and re-parsing.
Aron
> Generally spoken, my question is if we can create a new
> bs4.BeautifulSoup object from a collection of existing tags.
Slightly on a tangent from your original question, creating a new
soup object from an existing tree is something I've wondered
about too.
BeautifulSoup doesn't seem to provide much in the way of
a functional interface; every operation mutates the tree rather
than returning a new data structure. So the best answer it
probably to copy then extract, like this:
>>> soup = BeautifulSoup('<script>x=3</script>', 'html5lib')
>>> script = copy.deepcopy(soup).find('script').extract()
>>> print script
<script>x=3</script>
>>> print soup
<html><head><script>x=3</script></head><body></body></html>
I don't know if that's interesting or helpful to you. The other
replies regarding the "hidden" attribute are probably more
useful. But it will be helpful for me to have this technique of
extracting a subtree in the future.
In particular it might be helpful for form handling similar to
what I mentioned regarding WebTest on the "ampersands" thread
(accidental subject that I forgot to fix before posting). It
seems like a better approach to extract the "form" subtree as
objects without serializing and re-parsing.
Aron
Aron Griffis
May 20, 2013, 3:02:50 PM5/20/13
to beauti...@googlegroups.com
On Monday, May 20, 2013 2:49:48 PM UTC-4, Aron Griffis wrote:
I don't know if that's interesting or helpful to you. The other
replies regarding the "hidden" attribute are probably more
useful. But it will be helpful for me to have this technique of
extracting a subtree in the future.
Sorry Jan-Philip, I got a little confused between the two threads and I didn't realize you were the one who posted regarding the "hidden" attribute!
Aron
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