Use update-alternatives to manage additional Python versions

[osechet]

Hello,
When using the additionalVersions parameter of the python feature, would it be possible to register all the installed versions with update-alternatives?
It would make it easier to switch from one version to another one.
Alternative creation:

update-alternatives --install /usr/local/bin/python3 python3 /usr/local/python/3.12.7/bin/python3 1000 \
            --slave /usr/local/bin/pip3 pip3 /usr/local/python/3.12.7/bin/pip3

Alternative selection:

update-alternatives --set python3 /usr/local/python/3.12.7/bin/python3

Ideally, it would be even better if the installation path was limited to 3.x or if a symlink 3.x was pointing to the corresponding version:

3.10 -> 3.10.15
3.10.15
3.11 -> 3.11.10
3.11.10
3.12 -> 3.12.7
3.12.7
current -> 3.12.7

This way, the user doesn't have to know which specific version has been installed, only needs to know which main version they wants:

update-alternatives --set python3 /usr/local/python/3.12/bin/python3

or if alternatives are not installed:

rm /usr/local/python/current
ln -s 3.12 /usr/local/python/current

[gauravsaini04]

hi @osechet
Thanks for the inputs..
Have raised a pr #1260 for this