make doctest on 3.10 (master branch) fails with setuptools 50.0.0

[ned-deily]

BPO	41685
Nosy	@vstinner, @ned-deily, @JulienPalard, @ammaraskar, @tirkarthi
PRs	bpo-41685: Temporarily pin setuptools to 49.2.1 in Docs venv. #22038 bpo-41685: Don't pin setuptools version in Doc/Makefile #22062

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2020-09-02.11:11:55.732>
created_at = <Date 2020-09-01.09:38:54.093>
labels = ['3.10', 'docs']
title = 'make doctest on 3.10 (master branch) fails with setuptools 50.0.0'
updated_at = <Date 2020-09-02.11:11:55.731>
user = 'https://github.com/ned-deily'

bugs.python.org fields:

activity = <Date 2020-09-02.11:11:55.731>
actor = 'vstinner'
assignee = 'docs@python'
closed = True
closed_date = <Date 2020-09-02.11:11:55.732>
closer = 'vstinner'
components = ['Documentation']
creation = <Date 2020-09-01.09:38:54.093>
creator = 'ned.deily'
dependencies = []
files = []
hgrepos = []
issue_num = 41685
keywords = ['patch']
message_count = 7.0
messages = ['376184', '376185', '376186', '376214', '376224', '376226', '376227']
nosy_count = 6.0
nosy_names = ['vstinner', 'ned.deily', 'docs@python', 'mdk', 'ammar2', 'xtreak']
pr_nums = ['22038', '22062']
priority = 'high'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue41685'
versions = ['Python 3.10']

[ned-deily]

See pypa/setuptools#2361 for details.

For now, temporarily pin setuptools version in the Doc venv to a previous version.

Victor notes:
""Temporarily pin setuptools": we already pin Sphinx version to also avoid breaking the CI when a new Sphinx version is released. It would make sense to make our CI less dependent on releases of third party components: better control when we update dependencies. The risk is to forget to update these dependences if the updates are not automated."

[ned-deily]

New changeset a4c4e17 by Ned Deily in branch 'master':
bpo-41685: Temporarily pin setuptools to 49.2.1 in Docs venv. (GH-22038)
a4c4e17

[vstinner]

I proposed pypa/setuptools#2361 to fix setuptools compatibility with Python 3.10.

[ammaraskar]

Victor's fix is now in the 50.0.2 release, should we bump the pinned version, remove its pinning or do nothing?

pypa/setuptools@edcf84f

https://pypi.org/project/setuptools/#history

[vstinner]

I proposed PR 22062 to unpin the setuptools version.

Unless someone steps in and proposes a solution to automate updating the pinned setuptools version, I prefer to not pin the version.

[vstinner]

New changeset 51fece1 by Victor Stinner in branch 'master':
bpo-41685: Don't pin setuptools version anymore in Doc/Makefile (GH-22062)
51fece1

[vstinner]

As far as I know, the issue is fixed, so I close the issue.

Thanks Ned for the temporary fix to repair the workflow!