On Fri, 13 Sep 2013 15:32:55 -0700
Ethan Furman <et...@stoneleaf.us> wrote:
> On 09/13/2013 02:45 PM, Antoine Pitrou wrote:
> > Serhiy Storchaka wrote:
> >>
> >> I think that's important. As OrderectDict has additional methods besides
> >> the MutableMapping API, so TransformDict should provide useful
> >> specialized methods.
> >
> > Ok, I have a better (IMO) proposal:
> >
> > >>> d = TransformDict(str.casefold, {'Foo': 1})
> > >>> d.getitem('foo')
> > ('Foo', 1)
> > >>> d.getitem('bar')
> > Traceback (most recent call last):
> > File "<stdin>", line 1, in <module>
> > KeyError: 'bar'
>
> -1
>
> When I want the canonical key, I'm not going to care about the value; and if
> I do, it's easy enough to get.
But if you don't care about the value, the key is enough to get ;-)
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