You might want to also modify your c:/python/Lib/urllib.py file.
By adding/modifying the following headers.
self.addheaders = [('User-agent', 'Mozilla/4.0')]
#Trick the server into thinking it is explorer
self.addheaders = [('Referer','http://www.infomedia.it')]
#Trick the site that you clicked on a link from their site.