Not a huge fan of an f-prefix for a frozen set (I prefer just recognizing
the case and optimizing the byte code, I don't think frozensets are used
often enough to justify its own syntax), but I love {,} for an empty set.
On Tue, Jan 18, 2022 at 4:13 PM Rob Cliffe via Python-ideas <
python-ideas@python.org> wrote:
>
>
> On 18/01/2022 19:42, MRAB wrote:
> > On 2022-01-18 18:54, Neil Girdhar wrote:
> >> Even if f{1} creates a frozenset, I don't think f{} should create a
> >> frozenset. I think it makes more sense to keep f{1: 2} open for
> >> frozendict if it ever makes it in. Also, {} should be consisten with
> >> f{} (both should create dicts). If you want an empty frozenset, you
> >> would have to do it the same way you do it for sets: either
> >> frozenset() or f{*()}.
> >>
> > [snip]
> > An alternative might be to allow {,} for an empty set, which would
> > then let you have f{,} for an empty frozenset.
> I like it!
> Rob Cliffe
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--
-Dr. Jon Crall (him)
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