Using urllib2 to retrieve some RDF data for SPARQLWrapper (semantic web project) but getting ‘HTTP Error 409: Conflict’. This is caused by the university proxy.
The solution is to edit /usr/share/python-support/python-sparqlwrapper/SPARQLWrapper/Wrapper.py. Add these three lines at the end of the __init__ function:
proxy = urllib2.ProxyHandler({"http" : 'http://wwwcache.lancs.ac.uk:8080'})
opener = urllib2.build_opener(proxy)
urllib2.install_opener(opener)
Found the answer in a StackOverflow post by another Lancaster Uni person.