[Python-Dev] Getting values stored inside sets (original) (raw)

Leif Walsh leif.walsh at gmail.com
Sat Apr 4 01🔞22 CEST 2009


On Fri, Apr 3, 2009 at 8:07 AM, Hrvoje Niksic <hrvoje.niksic at avl.com> wrote:

But I can't seem to find a way to retrieve the element corresponding to 'foo', at least not without iterating over the entire set.  Is this an oversight or an intentional feature?  Or am I just missing an obvious way to do this?

queryobj in s True sprime = s.copy() sprime.discard(queryobj) x = s.difference(sprime).pop()

Pretty ugly, but I think it only uses a shallow copy, and it might be a bit better than iterating, if difference is intelligent. I haven't run any tests though.

-- Cheers, Leif



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