CODEWITHSUNDEEP
pythoncommand-promptprompt
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Reputation: 4059

Select python version to execute from prompt

I have several python versions installed (and working properly on my machines). Isn't there a way to execute a specific version of python from the command line.

Say I want to use python 3.1. I am after something a SIMPLE COMMAND such as python3.1 or python31 that would be used as follows :python3.1 setup.py install, for instance.

[pip has pip3.1 to install a library with the version 3.1 of python, specifically]

Upvotes: 0

Views: 175

Answers (2)

FuriousGeorge
FuriousGeorge

Reputation: 4681

There are multiple ways to go about this. As Sir_FZ pointed out, the executables are already named python2.7, etc, so what you want already exists. If for some really odd reason you have more than one python2.7 in your $PATH, you can explicitly call /my/other/python2.7 etc. If you're lazy, you can even create alias's alias p2=/my/other/python2.7 and then you can call p2 setup.py install

If you're going to be doing this for more than a day, I'd suggest following one of Sagar's links.

Upvotes: 0

Vaibhav Sagar
Vaibhav Sagar

Reputation: 2266

Yes, this is possible, but the best approach varies depending on the OS you're using. For Windows, you want the py launcher, for which instructions are here. For Mac OS X and Linux, you could use something like pyenv. Of course, you could always build your own solution using virtualenv.

Upvotes: 2

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