Python 2.7 is an extremely productive language, for a lot of us. I want to move to 3.x at some point, but there's very little I can't do with 2.7, and it is th

Python 2.7 is an extremely productive language, for a lot of us. I want to move to 3.x at some point, but there's very little I can't do with 2.7, and it is the default on OSX, and many linux platforms. The one killer feature that would make me move almost straight away would be making it a lot faster. But since I have pypy, I'm much more interested in installing that as my 'extra python version' than I am in going to 3.x straight away.