[issue18042] Provide enum.unique class decorator

[STINNER Victor]

STINNER Victor added the comment:

The documentation still contains an "Interesting example": UniqueEnum. I would prefer to only have one obvious way to get unique enum, so please just drop this example. Or at least, mention the new decorator in the example.

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nosy: +haypo

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