If you're using the "prefix:tag" form in XPath expressions in ET 1.3, you need to pass in a dictionary that tells the XPath engine what the prefix means, e.g.
myElt.findall('.//v:shape', {'v': 'http://somethingsomething'})
What prefix the file actually uses is irrelevant.
If you're using the "prefix:tag" form in XPath expressions in ET 1.3, you need to pass in a dictionary that tells the XPath engine what the prefix means, e.g.
myElt.findall('.//v:shape', {'v': 'http://somethingsomething'})
What prefix the file actually uses is irrelevant.