[docs] [issue26267] UUID docs should say how to get "standard form"

[Berker Peksag]

Changes by Berker Peksag <berker.peksag at gmail.com>:


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keywords: +easy
stage:  -> needs patch
versions: +Python 3.5, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26267>
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