[issue42854] OpenSSL 1.1.1: use SSL_write_ex() and SSL_read_ex()

[Ned Deily]

Change by Ned Deily <nad at python.org>:


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nosy: +pablogsal
stage: resolved -> needs patch

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42854>
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