David Mertz, Ph.D. writes:
> These are all far too easy to do with comprehensions to merit new methods
> or stdlib functions.
+1
> E.g., we might provide additional set-like operators for dicts.
> >>> m - {'a'} # Would rightval be a set or dict though?!
> >>> m & {'a', 'b'} # Same question, but set feels better, I think
Why not "either"? Of course if you allow dicts, the question in both
cases becomes whether the presence test is on keys or items. I think
keys would be more frequently useful.
Steve
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