On 10 November 2017 at 17:43, Guido van Rossum <guido@python.org> wrote:
Hey Ivan,

There seem to be some action items from this thread that I haven't seen reflected in the PEP source code yet.
Then the next step I propose is a PR with a full implementation. After that I'll likely approve the PEP (or we'll have minor feedback based on trying the implementation).

Yes, sorry, I wanted to make updates to the PEP and reference implementation,
but last two weeks were very busy.
Hopefully, I will work on it this weekend.