Using Multiple Versions of Python on Windows

There are still tons of Python libraries that only support version 2, so chances are you'll need to have more than one Python installed. In this version I"ll show you how to use the Python launcher to use multiple versions of Python on Windows.

[liuchiangmarak]

thanks this really helps me a lot since I've to run multiple versions

[benhayter-dalgliesh]

Thanks this rlly helped, i had django module installed for 3.6 but i also had 3.7, so py kept running it on 3.7 and it kept crashing

[typim]

that's nice! works on my Windows as well, by default.

[ahmedouerfelli]

Thank you, this is very helpful!
I have a question. How could I import modules installed in a previous version of python while running a newer one, or how could I install them again in the current version without going through the list of all modules and checking one by one?

[SHIVAMKUMAR-yziv]

In your example, what is the status of the environment variables? Which python version is at the top in the path of env variables?

[leamon]

Really useful. Thanks Anthony.
But what if I have same version of python but with different bits (one is 32bits, the other is 64bits)?

Thank you!. How do you use pip in this case ?

[Brandon-bmhp]

how would i run python 3.4 if python 3.5 is already installed py is not working for me does it have to be installed in the same folder

[AkashGhoshthereal]

but how to install packages for the different versions??

[rickybobby]

how would you use pip install for the alternate version?

[mtanker]

what about if I have python 2.7 64 bit and python 2.7 32 bit

[robertsmith]

Hey grass boi ! Try using baratone in your voice. Man up.

[idrissberchil]

Remove the "on windows" on your title