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Showing content from https://mail.python.org/pipermail/python-dev/2009-November/093814.html below:

[Python-Dev] Retrieve an arbitrary element from a setwithoutremoving it

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[Chris Bergstresser]
 > Clearly, I'll need to write up the PEP.

Why not write a short, fast get_first() function for your utils directory and be done with it?
That could work with sets, mappings, generators, and other containers and iterators.
No need to fatten the set/frozenset API for something so trivial and so rarely needed.


Raymond

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