Release 0.930 planning

[JukkaL]

I'm planning another release fairly soon after 0.920 (#11158) is out to catch up with the GitHub master branch. If everything goes as planned, I'll cut the release branch around Tue 14 Dec. Please post here any PRs that you'd like to include in the release and that are not yet in master (or in the release branch after I've created it).

Note: Please do not sync typeshed until I've created the release branch. There are already some typeshed regressions that likely need to be resolved. If you want to include some specific typeshed changes, I can potentially cherry-pick them.

[JukkaL]

Regression that is a release blocker: #11699 (_order_ in enum)

[JukkaL]

Another regression: #11701 (Literal[True, False] false positives)

[JukkaL]

Another regression that might be a release blocker (but it might be very rare and not super important to fix): #11702 (enum inheritance false positive)

[JukkaL]

Yet another regression that looks like a release blocker: #11704 (need type annotation with contextmanager)

[JukkaL]

One more regression: #11705 ("and" type inference with strict optional disabled)

[hauntsaninja]

Currently unmerged PRs I'd like included:
#11681 (low risk, fixes a crash)
#11708 (low risk, removes an optimisation that resulted in a regression reported multiple times)
#11709 (fixes #11701 as mentioned above)
If possible, enough of #10191 that we no longer crash on match statements

Curious if @sobolevn has thoughts on any PRs to prioritise

[sobolevn]

Direct blockers:

• Enums with annotations and no values are fine to be subclassed #11579
• Special cases Enum and some special props to be non-final, refs #11699 #11713

Also a couple of bug fixes that can potentially be merged:

• Now overloads with ambiguous self are handled properly #11366
• Fixes type inference for generic calls in if expr #11128
• Adds __hash__ method to @dataclasses.dataclass, refs #11463 #11496
• Now Type[None].__bool__ is a thing, refs #11539 #11551 and Now type(None) is more consistent, refs #11550 #11552

[Zac-HD]

#11718 keeps biting me, and should be pretty easy to merge.

[JukkaL]

Two planned reverts to avoid regressions: #11741 (Python 2 division), #11743 (Python 2 raise), unless there's a forward fix very soon.

Some cherry-picks from typeshed to avoid regressions: #11739

[sobolevn]

unless there's a forward fix very soon.

Sorry, I won't be able to submit a fix before the weekend. If this is fine 🙂
Or you can always keep this out of scope of the release, these two feature are not very important.

[JukkaL]

Sorry, I won't be able to submit a fix before the weekend

No worries, I reverted the PRs now so that they won't block the release.

[cdce8p]

Don't know if there is still some time left but I believe #10712 would be a good feature to have.