I want install python 2 and python 3 on my system and I read that it's possible when you install in separate envroments. How do I go about this? Any help..

paranorman:
I want install python 2 and python 3 on my system and I read that it's possible when you install in separate envroments. How do I go about this? Any help..

I use both pretty easily with linux!

You could use Docker though.

EvilSec:
You could use Docker though.

Expantiate

What I do is to simply install both and add the python installation folder to PATH (located in the environment variable in window).

The conflict now would be that you have 2 "python.exe" in your path. So to resolve that I go back and rename the "python.exe" executable for Python27 to "python2.exe".

That way, when I execute
> python something (python 3 works it way)
> python2 something (in this case, python2 gets called)

paranorman:
I want install python 2 and python 3 on my system and I read that it's possible when you install in separate envroments. How do I go about this? Any help..

You could do this on python with a feature called "virtualenv"

Run this command prompt:

"pip install virtualenv"

then install any version of your choice from python website.

It won't clash. Python 2 is in python27 folder, a child folder of c:/...... To open python CLI or run a .py file simply prefix py -2 or py -3 in your cmd

E.g
1. To open python 3 CLI, open cmd, type py -3
2 To run a .py file, open cmd, type py -3 text.py (ensure you are in same dir as the file)

Nb. When installing py 3 & 2, ensure you tick 'add to PATH' or do it manually


Just in case you still want to use a virtual environment, go to pydocs and check out venv. It is now inbuilt with python no need for external modules like virtualenv like some people may suggest

Thanks y'all for your inputs, really helpful