[docs] [issue41411] Improve and consolidate f-strings docs

July 28, 2020


      Change by Ezio Melotti <ezio.melotti@gmail.com>:


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keywords: +patch
pull_requests: +20788
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/21552

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<https://bugs.python.org/issue41411>
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