[3.12] gh-105716: Support Background Threads in Subinterpreters Consistently (gh-109921)#110707

Merged

ericsnowcurrently merged 7 commits intopython:3.12from

ericsnowcurrently:backport-1dd9dee-subinterpreters-allow-background-threads

Nov 28, 2023

Commits on Oct 11, 2023

Commits on Nov 20, 2023

Move "threads.main" down, for 3.12.0 layout compatibility.
ericsnowcurrently
committed

Commits on Nov 27, 2023

Merge branch '3.12' into backport-1dd9dee-subinterpreters-allow-background-threads
ericsnowcurrently
committed

Commits on Nov 28, 2023