[docs] [issue39287] Document UTF-8 mode in the using/windows.

10 Jan 2020


      Change by Inada Naoki <songofacandy@gmail.com>:


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keywords: +patch
pull_requests: +17342
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/17935

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Python tracker <report@bugs.python.org>
<https://bugs.python.org/issue39287>
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