It's not a change to the language, it's a change to the cpython runtime
PEPs aren't necessarily just for language changes, e.g https://peps.python.org/pep-0436/ which is largely a CPython implementation detail.
alt Hacker News
PEPs aren't necessarily just for language changes, e.g https://peps.python.org/pep-0436/ which is largely a CPython implementation detail.