[Chicago] xpath query with namespace

[sheila miguez]

How do I specify a namespace when performing this query? As a learning
exercise, I'd like to get all of the wpt elements. In a file without a
xmlns defined, I can use //wpt but I am not sure how to form the query
when a namespace is involved.

small.gpx is based on the example at
http://www.topografix.com/fells_loop.gpx but I've edited most of the
element out for brevity

http://www.topografix.com/gpx/1/1/  gpx schema defined here

nsdict = {'gpxns': 'http://www.topografix.com/GPX/1/1/'}
gpxfile = file('small.gpx')
gpxdoc = etree.parse(gpxfile)
gpxdoc.xpath('//gpxns:wpt', nsdict)
[]

nothing. arg.

this is just one example from a bunch of futzing around. I've played
around with the syntax a lot already. judging from the example at
http://codespeak.net/lxml/api.html#xpath I thought using the dict
would work.

reformatting the hard drive and reinstalling windows hasn't worked. I
might try switching to a mac next. suggestions?

thanks

-- 
sheila