How to set Python's default version to 3.x on OS X?

Question

I\'m running Mountain Lion and the basic default Python version is 2.7. I downloaded Python 3.3 and want to set it as default.

Currently:

$ python
           


        

Answer 1

If you use macports, you do not need to play with aliases or environment variables, just use the method macports already offers, explained by this Q&A:

How to: Macports select python

TL;DR:

sudo port select --set python python27