We in python-dev land have been working on discussing various help documents and things associated with the website. For now, if you have lots of 2.x dependenci

We in python-dev land have been working on discussing various help documents and things associated with the website. For now, if you have lots of 2.x dependencies - use 2.x - it's stable and well supported by the community. If you're doing greenfield development, and don't plan on lots of external dependencies, use 3. Personally, if I didn't have dependencies on a few "really big" external libraries, I would be running 3 in production. This wiki page - a work in progress - should help you if you're thinking about switching. http://wiki.python.org/moin/Python2orPython3 http://wiki.python.org/moin/Python2orPython3