Python's `urllib2`: Why do I get error 403 when I `urlopen` a Wikipedia page?

Question

I have a strange bug when trying to urlopen a certain page from Wikipedia. This is the page:

http://en.wikipedia.org/wiki/OpenCola_(drink)

This

Answer 1

Some websites will block access from scripts to avoid 'unnecessary' usage of their servers by reading the headers urllib sends. I don't know and can't imagine why wikipedia does/would do this, but have you tried spoofing your headers?