First, sorry for the crossposting. I have drafted a small document (it
is in Spanish, if there's interest, I'll have a go at translating it)
on how to use OGR from Python access geospatial data, which can be
further analysed or plotted with matplotlib. It is a very brief
introduction, and surely there is much to improve, but I was looking
for something like this for a while, and couldn't find it.
The page is here: <http://jgomezdans.googlepages.com/ogr%2Cpythonymatplotlib>