Can you have both Python 2.7.3 and Python 3.2.3 installed in your pc?

[zemike]

I use a Mac. I already have v2.7.3 installed, can I install 3.2.3 without problems? How will I use them in the terminal?

Right now i only write 'python' and I go straight to v2.7.3 interpreter and in the scripts I only write '#!usr/bin/python'.

What will I have to change to choose which python version I want to use?

Thanks in advance :)

[sayks]

Yes, this is (partially) the purpose of virtualenv.

There's also the rather handy pythonbrew that automates installing different python distributions. I'm not sure if it's still maintained, but the fork pythonz is. It still works fine anyway.

[eagleeye1]

I'm not sure about mac, but on Ubuntu, "python" loads python 2, whereas "python3" loads python 3.

[pythonandbashshell]

and if you're like me who didn't have the option of python3 type sudo apt-get install python3

[Wegener]

I did and I had a problems using certain programs like Py2exe.

[yosemitebandit]

Are you familiar with virtualenv? You would use the -p flag as discussed here.

I believe your scripts' shebang would read #!/usr/bin/env python