Re: A proposal to modify `None` so that it hashes to a constant

On 29/11/2022 00:51, Guido van Rossum wrote:
> To stir up some more fire, I would personally be fine with sets having
> the same ordering guarantees as dicts, *IF* it can be done without
> performance degradations. So far nobody has come up with a way to ensure
> that. "Sets weren't meant to be deterministic" sounds like a remnant of
> the old philosophy, where we said the same about dicts -- until they
> became deterministic without slowing down, and then everybody loved it.

Hi all, hi Guido,

Just as a data point, PyPy's sets have been using the same stable
ordering like dicts since our introduction of insertion ordered dicts.
We have a number of other set optimizations so it's not an
apple-to-apple comparison, but still.

Cheers,

Carl Friedrich