🔒 Installation of Python 3.12.10?!

[lyric meadow]

How would I set up this version of Python, so that it doesn't overwrite the environment settings for Python 3.13.4? 🤔

[golden wing]

@lyric meadow

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[torn nest]

Customize Installation

[lost widget]

Do not check "Add python.exe to PATH"

[lyric meadow]

What now?

[lost widget]

Click "Customize installation" instead of "Install Now"
During customization:
Set the install path to something unique like
C:\Python312\

This avoids overwriting anything from 3.13.4.

[torn nest]

^ generally, though, each version of Python installs in its own directory, but the default options as shown there look fine.

You'd then use py -3.12 to invoke Python 3.12 from the command line

so to create a venv for a project, you'd use py -3.12 -m venv .venv

(don't do this on top of an existing venv directory, though!)

(you could say .venv312 to be unambiguous)

[lyric meadow]

How does that look like?

[torn nest]

that should be fine.

[lyric meadow]

I shouldn't "Add Python to environment variables"

[torn nest]

there's no need if you use the py launcher

and really, that's the recommended way to access multiple versions of Python now

[lyric meadow]

Okay, I clicked on Install

There was some kind of PowerShell command that shows all installed Python versions? Do you know that?

[torn nest]

py -0p

that also lists the paths to each, which is useful

[lyric meadow]

What does that ***** stand for? Is it the main one? 🤔

[tall drum]

yes.

[torn nest]

That indicates which is the default when you run py

you can change that with an environment variable.

[lyric meadow]

What is that? How to do that?

[torn nest]

do you know how to set environment variables?

[lyric meadow]

Yes, I know what you're talking about 😆

[torn nest]

you'd set PY_PYTHON to the version you want to use, then restart any open shells

e.g., in PowerShell: $Env:PY_PYTHON=3.12

[lyric meadow]

Is this shell scripting or something?

[torn nest]

you'd type that command in PowerShell.

[lyric meadow]

What does that $ stand for?

[torn nest]

it indicates Env:PY_PYTHON is a variable of some kind

[lyric meadow]

Is it worth it to learn shell scripting (e.g. Bash, PowerShell)?

[torn nest]

if you end up doing a lot of stuff in the shell, sure.

It's a general skill

[lyric meadow]

Is it something you learn along the way or do you have to explicitly do it by watching tutorials and stuff?

[torn nest]

either one works.

I never formally learned it; I just picked up what bits I needed to get by along the way, because I don't really do a lot of stuff in the shell that demands full-blown scripting

[lyric meadow]

Okay, I see. Thanks for helping out! 🙏

!close

[golden wing]

Python help channel closed with !close

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