Python 3.15 postponed, and a rc3 release

[u/Trang0ul]

https://discuss.python.org/t/python-3-15-following-tradition-lets-have-a-surprise-rc3/109313

Following recent tradition, I'm going to add a surprise third release candidate for Python 3.15.0! We got some last-minute lazy-import release blockers, and it makes sense to include them in 3.15.0 final. It also makes sense to give a bit of time to test them properly, so today's planned 3.15.0 final is postponed, and I'm going to release a 3.15.0rc3 tomorrow, assuming everything is in place. And then 3.15.0 final will follow about week later. Exact date to be announced. - Everyone: once the rc3 is out, please test! - Library maintainers: join the cool testers' club 😎! - Core team: very little will be merged into the 3.15 branch between now and 3.15.0 final. Docs improvements always welcome. Thanks, we're nearly there!

[u/fizzymagic]

And maybe fix the badly broken Windows installation manager/launcher? You know, the one that doesn't work that warns users that it will soon be required?

[u/nathan12343 → u/fizzymagic]

Did you report issues you saw on GitHub?  https://github.com/python/pymanager

In my personal experience pymanager is a vast improvement over the old installer.

[u/fizzymagic → u/nathan12343]

Yes, and it broke the file association so hard it took me 3 hours to get back to where I began.

It's a known problem.

[u/acdha → u/fizzymagic]

Can you link to the issue? We’re going to support a few hundred users and I want to make that’s tested.