[issue36097] Use only public C-API in _xxsubinterpreters module.

[Eric Snow]

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

After discussions about our use of the public C-API in stdlib extension modules, I realized that I'd written the _xxsubinterpreters module using internal C-API.  However, there's no reason not to stick to the public C-API.  Fixing this will require adding a few new "private" functions.

----------
assignee: eric.snow
components: Interpreter Core
messages: 336419
nosy: eric.snow
priority: normal
severity: normal
stage: needs patch
status: open
title: Use only public C-API in _xxsubinterpreters module.
versions: Python 3.8

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36097>
_______________________________________