This is a follow-up to this earlier discussion: https://github.com/python/cpython/pull/3908#discussion_r222443254, now that [RFC 9239](https://www.rfc-editor.org/rfc/rfc9239) resolves this disagreement across standards.
This is a follow-up to this earlier discussion: #3908 (comment), now that RFC 9239 resolves this disagreement across standards.