[Python-Dev] Retrieve an arbitrary element from a set without removing it

[Guido van Rossum]

All this talk of equivalence classes makes me dizzy. :-)

- If sets were to grow an API to non-destructively access the object
stored in the set for a particular key, then dicts should have such a
method too.

- Ditto for an API to non-destructively get an arbitrary element.

- I'm far from convinced that we urgently need either API. But I'm
also not convinced it's unneeded.

- I still wish we could go back in time and unify sets and dicts, if
only to find out how that experiment would turn out.

-- 
--Guido van Rossum

PS. My elbow needs a couple more weeks of rest. Limiting myself to
ultra-short emails.