[issue18042] Provide enum.unique class decorator

[Ethan Furman]

Ethan Furman added the comment:

I haven't seen any discouraging words regarding the decorator.  If no one has any compelling reasons why it shouldn't be added, I'll craft a version and put it in (only real difference with Nick's would be catching all the duplicates at once instead of one at a time).

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assignee:  -> ethan.furman

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18042>
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