For Windows, add installed versions to the registry so that the py command can detect them.

[phillipstemmlar]

By default, python versions installed via pyenv is not detected by the py command:

> py --list                                             
Installed Pythons found by py Launcher for Windows      
No Installed Pythons Found! 

I have 3rd party scripts that required py to be installed so not using py is not really an option to me.
I got around this issue by manually adding the versions installed by pyenv to the default registry locations as py expects them:

[HKEY_CURRENT_USER\SOFTWARE\Python\PythonCore\3.8\InstallPath]
@="C:\\Users\\<USER>\\.pyenv\\pyenv-win\\versions\\3.11.1"
"ExecutablePath"="C:\\Users\\<USER>\\.pyenv\\pyenv-win\\versions\\3.11.1python.exe"
"WindowedExecutablePath"="C:\\Users\\<USER>\\.pyenv\\pyenv-win\\versions\\3.11.1pythonw.exe"

*Note: HKEY_CURRENT_USER might be different for some poeple.

But this means that for any other python versions that I install with pyenv, I would have to manually add it to the registry in order for py to detect it.

It would be really useful and if this process is automated when installing a new python version using pyenv.