[issue36785] Implement PEP 574

[Antoine Pitrou]

New submission from Antoine Pitrou <pitrou at free.fr>:

Now that PEP 574 (Pickle protocol 5 with out-of-band data) has been accepted, it should be implemented.

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components: Extension Modules, Library (Lib)
messages: 341349
nosy: ncoghlan, pitrou
priority: normal
severity: normal
stage: needs patch
status: open
title: Implement PEP 574
type: enhancement
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36785>
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