Ubuntu – Install and run Python 3 at the same time than Python 2

python3software installation

Im using 13.04 but I want have installed the both main Python versions for make tests about migration of my actual code.

is possible install Python 3 in the same machine running Python 2.7? I need work with both versions,thanks!

Best Answer

Yes, you just need to install python3 package.

$ sudo apt-get install python3

Python 2.X will still be the default Python used, so if you want to run a script with Python 3.X you need to run

$ python3 /path/to/script.py

or add in the first line of your executable script:

#!/usr/bin/env python3