[issue36835] Move the warnings runtime state into per-interpreter state.

[Eric Snow]

New submission from Eric Snow <ericsnowcurrently at gmail.com>:

Currently the warnings module uses runtime-global state (PyRuntimeState.warnings).  That should be moved down to per-interpreter state.  There are three possible places:

1. the module's "module state"
2. the module's __dict__
3. PyInterpreterState.warnings (new)

I have a patch for the first option.

----------
assignee: eric.snow
components: Interpreter Core
messages: 341763
nosy: eric.snow
priority: normal
severity: normal
stage: needs patch
status: open
title: Move the warnings runtime state into per-interpreter state.
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36835>
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