unittest.TestProgram.usageExit no longer invoked

[rbtcollins]

BPO	22859
Nosy	@rbtcollins, @JelleZijlstra, @carlosdamazio
PRs	bpo-22859: deprecating unittest.TestProgram.usageExit #30293

^{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 2022-03-17.02:41:51.121>
created_at = <Date 2014-11-13.10:25:22.043>
labels = ['easy', 'type-bug', 'library', '3.11']
title = 'unittest.TestProgram.usageExit no longer invoked'
updated_at = <Date 2022-03-17.02:41:51.120>
user = 'https://github.com/rbtcollins'

bugs.python.org fields:

activity = <Date 2022-03-17.02:41:51.120>
actor = 'JelleZijlstra'
assignee = 'none'
closed = True
closed_date = <Date 2022-03-17.02:41:51.121>
closer = 'JelleZijlstra'
components = ['Library (Lib)']
creation = <Date 2014-11-13.10:25:22.043>
creator = 'rbcollins'
dependencies = []
files = []
hgrepos = []
issue_num = 22859
keywords = ['patch', 'easy']
message_count = 5.0
messages = ['231102', '409324', '411442', '415383', '415384']
nosy_count = 3.0
nosy_names = ['rbcollins', 'JelleZijlstra', 'carlosdamazio']
pr_nums = ['30293']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue22859'
versions = ['Python 3.11']

[rbtcollins]

Before the argparse migration usageExit was invoked and could be extended via subclasses, but it no longer is. We could delete it (and document it being no longer accessible) or put some glue in to reinstate it. I think deleting it is fine, as long as we make the argparse parser objects part of the API (so that folk have a reliable place to poke at to change help).

[carlosdamazio]

Well, to this issue, I'm going to put a PR to remove it and give it a chance for it to being reinstated if you folks want to.

[JelleZijlstra]

I suggest we mark the method as deprecated and remove it in 3.13.

Making the argparse objects public can be done in a separate enhancement request if there is demand for it.

[JelleZijlstra]

New changeset 7c353b7 by Carlos Damazio in branch 'main':
bpo-22859: deprecate unittest.main.TestProgram.usageExit (GH-30293)
7c353b7

[JelleZijlstra]

It is now marked deprecated, to be removed in 3.13.

[hugovk]

Please see #104992 to remove it in 3.13.