[issue27200] make doctest in CPython has failures

[Zachary Ware]

Changes by Zachary Ware <zachary.ware at gmail.com>:


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assignee: Jelle Zijlstra -> 
stage:  -> patch review
versions: +Python 3.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27200>
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