[Python-ideas] Identity dicts and sets

[Serhiy Storchaka]

середа 02 січень 2013 21:43:47 Eli Bendersky ви написали:
> I agree that the data structures may be useful, but is there no way to some
> allow the customization of existing data structures instead, without losing
> performance? It's a shame to have another kind of dict just for this
> purpose.

What interface for the customization is possible? Obviously, a dict 
constructor can't have a special keyword argument.