Does urllib2.urlopen() cache stuff?

Question

They didn\'t mention this in python documentation. And recently I\'m testing a website simply refreshing the site using urllib2.urlopen() to extract certain content, I notic

Answer 1

I find it hard to believe that urllib2 does not do caching, because in my case, upon restart of the program the data is refreshed. If the program is not restarted, the data appears to be cached forever. Also retrieving the same data from Firefox never returns stale data.