[issue34967] Sphinx is deprecating add_description_unit

[Julien Palard]

New submission from Julien Palard <julien+python at palard.fr>:

When running `make -C Doc/ autobuild-dev-html` with a recent Sphinx, I'm getting:

    /.../site-packages/sphinx/application.py:927: RemovedInSphinx20Warning: app.add_description_unit() is now deprecated. Use app.add_object_type() instead.

Looks easy to fix.

----------
assignee: docs at python
components: Documentation
keywords: easy
messages: 327600
nosy: docs at python, mdk
priority: normal
severity: normal
status: open
title: Sphinx is deprecating add_description_unit
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34967>
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