asyncio._SelectorSocketTransport: help garbage collector

[rkojedzinszky]

Feature or enhancement

Debugging an asyncio application I've found that many _SelectorSocketTransport objects end up listed in gc.garbage instead of being released as soon as possible.

Pitch

We could release resources as soon as possible, and avoid this task to be done by gc.

Linked PRs

• gh-100348: asyncio._SelectorSocketTransport: free cyclic reference on close() #100349