[Tutor] ElementTree: finding a tag with specific attribute

[Bernard Lebel]

Thanks Kent, I'll check your suggestion out.

I have sent you the xml file.



Bernard



On 9/16/05, Kent Johnson <kent37 at tds.net> wrote:
> Bernard Lebel wrote:
> > Hello,
> >
> > With ElementTree, can you search a tag under an Element by not only
> > specifying the tag label, but also some tag attribute values? That
> > would be in the case where I have several tags with the same label but
> > with various attribute values.
> >
> > Right now I do a loop over every tag of the same label, then test the
> > attributes:
> >
> > for oTag in oElement.findall( 'taglabel' ):
> >     if oTag.attrib[ 'value' ] == 'xx': do something
> 
> I think that is the best you can do. Or switch to something with full XPath support.
> 
> FLASH: I just found PDIS XPath which evaluates XPath expressions against ElementTree trees!
> http://pdis.hiit.fi/pdis/download/
> 
> > I'm looking for something a bit like BeautifulSoup, like:
> >
> > oTag = oElement.find( 'taglabel', { 'value' : 'xx' } )
> >
> >
> > Btw in case you wonder, I don't use BeautifulSoup because somehow it
> > takes 20-30 seconds to parse a 2000-line xml file, and I don't know
> > why. ElementTree is proving very performing.
> 
> Would you send me privately a copy of your file and your code that reads it with BS? I'm curious why this takes so long.
> 
> Kent
> 
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