linux-kernel - Re: [PATCH] kunit: tool: undo type subscripts for subprocess.Popen

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Message-Id: <20230609190936.30045-1-sj@kernel.org>
Date:   Fri,  9 Jun 2023 19:09:36 +0000
From:   SeongJae Park <sj@...nel.org>
To:     David Gow <davidgow@...gle.com>
Cc:     Daniel Latypov <dlatypov@...gle.com>, brendanhiggins@...gle.com,
        rmoar@...gle.com, linux-kernel@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org,
        skhan@...uxfoundation.org, johannes@...solutions.net,
        SeongJae Park <sj@...nel.org>
Subject: Re: [PATCH] kunit: tool: undo type subscripts for subprocess.Popen

Hi David and Brendan,

On Tue, 2 May 2023 08:04:20 +0800 David Gow <davidgow@...gle.com> wrote:

> [-- Attachment #1: Type: text/plain, Size: 1473 bytes --]
> 
> On Tue, 2 May 2023 at 02:16, 'Daniel Latypov' via KUnit Development
> <kunit-dev@...glegroups.com> wrote:
> >
> > Writing `subprocess.Popen[str]` requires python 3.9+.
> > kunit.py has an assertion that the python version is 3.7+, so we should
> > try to stay backwards compatible.
> >
> > This conflicts a bit with commit 1da2e6220e11 ("kunit: tool: fix
> > pre-existing `mypy --strict` errors and update run_checks.py"), since
> > mypy complains like so
> > > kunit_kernel.py:95: error: Missing type parameters for generic type "Popen"  [type-arg]
> >
> > Note: `mypy --strict --python-version 3.7` does not work.
> >
> > We could annotate each file with comments like
> >   `# mypy: disable-error-code="type-arg"
> > but then we might still get nudged to break back-compat in other files.
> >
> > This patch adds a `mypy.ini` file since it seems like the only way to
> > disable specific error codes for all our files.
> >
> > Note: run_checks.py doesn't need to specify `--config_file mypy.ini`,
> > but I think being explicit is better, particularly since most kernel
> > devs won't be familiar with how mypy works.
> >
> > Fixes: 695e26030858 ("kunit: tool: add subscripts for type annotations where appropriate")
> > Reported-by: SeongJae Park <sj@...nel.org>
> > Link: https://lore.kernel.org/linux-kselftest/20230501171520.138753-1-sj@kernel.org
> > Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> > ---
> 
> Thanks for jumping on this.
> 
> Looks good to me!
> 
> Reviewed-by: David Gow <davidgow@...gle.com>

Looks like this patch is still not merged in the mainline.  May I ask the ETA,
or any concern if you have?


Thanks,
SJ

> 
> Cheers,
> -- David