[Python-Dev] PEP 455: TransformDict

[Nick Coghlan]

On 16 September 2013 00:45, Serhiy Storchaka <storchaka at gmail.com> wrote:
> 15.09.13 16:57, Antoine Pitrou написав(ла):
>
>> I don't really care. What's the point in the end? TransformDict is
>> non-trivial to implement, while the so-called "TransformSet" is just a
>> dict with a different API.
>
>
> I don't see a difference. To me TransformDict is just a dict (or two).

I think it's best to hold off a TransformSet, since you can trivially
emulate it by setting the values in a TransformDict to None (that's
how Python itself lived without a set type for so long: people just
used dicts with all the values set to None).

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia