In#90276, I grouped the functionality related toimportlib.resources into its own package (creating clearer separation of responsibility fromimportlib.*). That included moving some abstract base classes fromimportlib.abc toimportlib.resources.abc. We need to officially deprecate the presence inimportlib.abc and then remove them in a future release.

• deprecation:gh-93963: Officially deprecate abcs and warn about their usage. #93965
• documentation:gh-93963: Document importlib.abc deprecations #94546
• cleanup:gh-93963: Remove usage of deprecated interface from importlib.abc. #95217,gh-93963: Remove ResourceReaderDefaultsTests #96598
• removal:gh-93963: Remove deprecated names from importlib.abc. #94528
• removal:gh-93963: Remove deprecated names from importlib.abc #119720

Originally posted by@jaraco in#93610 (comment)

Linked PRs

• gh-93963: Remove deprecated names from importlib.abc #119720