Ironically, since this was merged, `test_importlib` started leaking on refleaks buildbots. _Originally posted by @encukou in https://github.com/python/cpython/issues/116680#issuecomment-1994115142_ <!-- gh-linked-prs --> ### Linked PRs * gh-116763 * gh-116805 * gh-116820 <!-- /gh-linked-prs -->