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
For me the solution was using PyCharm and setting the default python version to the the one that i need to work with.
install PyCharm and go to file ==> preferences for new project, then choose the interpreter you want for your projects, in this case python 3.3