Hi I'm using ElementTree to parse out an xml feed from Kuler. I'm only beginning in python but am stuck here. The parsing works fine until I attempt to retrieve any nodes containing ':' e.g kuler:swatchHexColor

Below is a cut down version of the full feed but same structure:

<rss xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:kuler="http://kuler.adobe.com/kuler/API/rss/" xmlns:rss="http://blogs.law.harvard.edu/tech/rss" version="2.0">
 <channel>
 <title>kuler popular themes</title>
 <item>
 <title>Theme Title: Fresh Money</title>
 <description> 
 &lt;img src="http://kuler-api.adobe.com/kuler/themeImages/theme_808366.png" /&gt;&lt;br /&gt;

 Artist: thesylph005&lt;br /&gt;
 ThemeID: 808366&lt;br /&gt;
 Posted: 03/02/2010&lt;br /&gt;

 Hex:
 2F400D, 8CBF26, A8CA65, E8E5B0, 419184
</description>
<kuler:themeItem>
<kuler:themeID>808366</kuler:themeID>
<kuler:themeTitle>Fresh Money</kuler:themeTitle>
<kuler:themeImage>http://kuler-api.adobe.com/kuler/themeImages/theme_808366.png</kuler:themeImage>
<kuler:themeAuthor>
 <kuler:authorID>370750</kuler:authorID>
 <kuler:authorLabel>thesylph005</kuler:authorLabel>
</kuler:themeAuthor>
<kuler:themeTags/>
<kuler:themeRating>4</kuler:themeRating>
<kuler:themeDownloadCount>708</kuler:themeDownloadCount>
<kuler:themeCreatedAt>20100302</kuler:themeCreatedAt>
<kuler:themeEditedAt>20100302</kuler:themeEditedAt>
<kuler:themeSwatches>
 <kuler:swatch>
  <kuler:swatchHexColor>2F400D</kuler:swatchHexColor>
  <kuler:swatchColorMode>rgb</kuler:swatchColorMode>
  <kuler:swatchChannel1>0.183333</kuler:swatchChannel1>
  <kuler:swatchChannel2>0.25</kuler:swatchChannel2>
  <kuler:swatchChannel3>0.05</kuler:swatchChannel3>
  <kuler:swatchChannel4>0.0</kuler:swatchChannel4>
  <kuler:swatchIndex>0</kuler:swatchIndex>
 </kuler:swatch>
 <kuler:swatch>
  <kuler:swatchHexColor>8CBF26</kuler:swatchHexColor>
  <kuler:swatchColorMode>rgb</kuler:swatchColorMode>
  <kuler:swatchChannel1>0.55</kuler:swatchChannel1>
  <kuler:swatchChannel2>0.75</kuler:swatchChannel2>
  <kuler:swatchChannel3>0.15</kuler:swatchChannel3>
  <kuler:swatchChannel4>0.0</kuler:swatchChannel4>
  <kuler:swatchIndex>1</kuler:swatchIndex>
 </kuler:swatch>
 <kuler:swatch>
  <kuler:swatchHexColor>A8CA65</kuler:swatchHexColor>
  <kuler:swatchColorMode>rgb</kuler:swatchColorMode>
  <kuler:swatchChannel1>0.659722</kuler:swatchChannel1>
  <kuler:swatchChannel2>0.791667</kuler:swatchChannel2>
  <kuler:swatchChannel3>0.395833</kuler:swatchChannel3>
  <kuler:swatchChannel4>0.0</kuler:swatchChannel4>
  <kuler:swatchIndex>2</kuler:swatchIndex>
 </kuler:swatch>
 <kuler:swatch>
  <kuler:swatchHexColor>E8E5B0</kuler:swatchHexColor>
  <kuler:swatchColorMode>rgb</kuler:swatchColorMode>
  <kuler:swatchChannel1>0.91</kuler:swatchChannel1>
  <kuler:swatchChannel2>0.898047</kuler:swatchChannel2>
  <kuler:swatchChannel3>0.688705</kuler:swatchChannel3>
  <kuler:swatchChannel4>0.0</kuler:swatchChannel4>
  <kuler:swatchIndex>3</kuler:swatchIndex>
 </kuler:swatch>
 <kuler:swatch>
  <kuler:swatchHexColor>419184</kuler:swatchHexColor>
  <kuler:swatchColorMode>rgb</kuler:swatchColorMode>
  <kuler:swatchChannel1>0.254901</kuler:swatchChannel1>
  <kuler:swatchChannel2>0.57</kuler:swatchChannel2>
  <kuler:swatchChannel3>0.519034</kuler:swatchChannel3>
  <kuler:swatchChannel4>0.0</kuler:swatchChannel4>
  <kuler:swatchIndex>4</kuler:swatchIndex>
 </kuler:swatch>
</kuler:themeSwatches>

Tue, 30 Mar 2010 11:27:12 PST

So if I do a findall on say each item's description, I get that back fine. But the minute I try to retrieve anything with a : in the nodename I get Exception Type: KeyError Exception Value: ':'

So this works

from elementtree.ElementTree import Element, SubElement, dump, parse
def xml():
    kulerurl = 'http://kuler-api.adobe.com/rss/get.cfm?listType=popular&startIndex=0&itemsPerPage=5&timeSpan=30&key=mykey'
    rss = parse(urllib.urlopen(kulerurl)).getroot()
    for element in rss.findall('channel/item'):
        print(element.findtext('description'))
    dump (rss)

but this doesn't

def xml():
    kulerurl = 'http://kuler-api.adobe.com/rss/get.cfm?listType=popular&startIndex=0&itemsPerPage=5&timeSpan=30&key=mykey'
    rss = parse(urllib.urlopen(kulerurl)).getroot()
    for element in rss.findall('channel/item/kuler:themeItem'):
        print(element.findtext('kuler:themeID'))
    dump (rss)

I'm sure it's something simple if anyone could point me to what I'm doing wrong here I'd be most grateful

thanks Kieran