[issue40066] Enum: modify __repr__, __str__; update docs

[Ethan Furman]

Change by Ethan Furman <ethan at stoneleaf.us>:


----------
components: +Library (Lib)
title: Enum._convert should change __repr__ and/or __str__ to use module name instead of class name -> Enum: modify __repr__, __str__; update docs

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40066>
_______________________________________