I'm trying to learn python programming. I have a book that teaches version 2.5, but the latest version is 2.7.5. Can someone give me a list of commands that have changed since 2.5 for me to reference? It would be extremely helpful!
Dunno if I would use the word obsolete, considering "most current Linux distributions and Macs are still using 2.x as default".
"Short version: Python 2.x is the status quo, Python 3.x is the present and future of the language"
-http://wiki.python.org/moin/Python2orPython3
Basically, If the features and libraries you need are in 3, and you don't need to deploy this program to more then just yourself, use 3. Otherwise, use 2. That's a basic summary of the link above.