[issue31985] Deprecate openfp() in aifc, sunau and wave

[Serhiy Storchaka]

Change by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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title: Deprecate aifc.openfp -> Deprecate openfp() in aifc, sunau and wave

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31985>
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