On Tue, Dec 3, 2019, at 01:02, Kyle Stanley wrote:
> However, if the OP wants to personally implement this behavior for
> their own subclass of sets (instead of adding it to the language), that
> could be done rather easily:
The OP wanted to return the object that was in the set. I don't think there's
currently a way to get it in O(1) time [you can get it in O(N) with a naive
loop or with s - (s - {key})]. intersection returns precisely the wrong object
in my tests.
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