python@3.12 python-gdbm@3.12 python-tk@3.12 3.12.0

[p-linnane]

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[Bo98]

If we're switching the alias in the same pull request then you'll need to update Python 3.11 to use altinstall. Only one Python formula (the one pointed to by the alias) should have install, the rest should use altinstall.

[p-linnane]

Thanks. I'll update the open python@3.11 PR.

[Bo98]

Ok, will need to be merged at the same time then.

[p-linnane]

Does that make sense? Or would it be bettere to do the alias stuff after the version bumps?

[Bo98]

What you could do is ship Python 3.11 with no changes (except the version bump), ship 3.12 with no alias changes and with altinstall (no link_overwrite etc). That should be trivial to do and is what we did last year and shipped within a day.

Then you can have a PR afterwards that collectively:

• Swaps 3.11 install -> altinstall, removes link_overwrite etc
• Swaps 3.12 altinstall -> install, adds link_overwrite etc
• Updates aliases

There might be dependents that reference python3 rather than python3.11 so will need to watch CI on that one. Might be beneficial to update some multi-Python formulae to add 3.12 first - there's not many of them I don't think.

[p-linnane]

That sounds like a good idea. I've pushed those changes here.

[Bo98]

3.10 has a couple additional "remove symlinks that conflict with the main Python formula" lines that may be relevant here too.

You also want to update the "unversioned symlinks" libexec/bin code to include the 3-suffixed stuff (also see python@3.10.rb), and the caveats to basically match 3.10.

[p-linnane]

Think I got all those changes incorporated now.

[Bo98]

Last few:

[Bo98]

(We maybe should probably document the differences somewhere for next time, or make it generic)

[branchvincent]

I think we also wanted to start marking our python as externally managed: #129943 and https://peps.python.org/pep-0668/

[p-linnane]

@branchvincent Feel free to push to this PR if you have time.

[Bo98]

libedit fix to test (will submit upstream if it works): Bo98/cpython@eb801d8

[cclauss]

ModuleNotFoundError: No module named 'setuptools'

[p-linnane]

Thanks @branchvincent!

[branchvincent]

Thanks @p-linnane for doing the bulk of the work! Main change was gdbm/tk now need a setuptools resource since it's no longer bundled with python. So as we start migrating all our formulae to 3.12, we'll need similar changes

[ZhongRuoyu]

Wonderful job @p-linnane @Bo98 @branchvincent!

[p-linnane]

Credit to @Bo98. I just followed his guidance!

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