linux-kernel - Re: [PATCH 1/3] kunit: tool: surface and address more typing issues

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Message-ID: <CABVgOSmPFYYrjU5KHgKftU1P2CcCTM_HvxJr2YRzKfuaZWjxSA@mail.gmail.com>
Date:   Fri, 4 Dec 2020 13:50:29 +0800
From:   David Gow <davidgow@...gle.com>
To:     Daniel Latypov <dlatypov@...gle.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 1/3] kunit: tool: surface and address more typing issues

On Fri, Dec 4, 2020 at 3:41 AM Daniel Latypov <dlatypov@...gle.com> wrote:
>
> The authors of this tool were more familiar with a different
> type-checker, https://github.com/google/pytype.
>
> That's open source, but mypy seems more prevalent (and runs faster).
> And unlike pytype, mypy doesn't try to infer types so it doesn't check
> unanotated functions.
>
> So annotate ~all functions in kunit tool to increase type-checking
> coverage.
> Note: per https://www.python.org/dev/peps/pep-0484/, `__init__()` should
> be annotated as `-> None`.
>
> Doing so makes mypy discover a number of new violations.
> Exclude main() since we reuse `request` for the different types of
> requests, which mypy isn't happy about.
>
> This commit fixes all but one error, where `TestSuite.status` might be
> None.
>
> Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> ---

This looks good to me: I gave it some quick testing, and reading
through it, all of the changes seem sensible.

I wasn't able to get pytype running here, but mypy worked fine.

Reviewed-by: David Gow <davidgow@...gle.com>

-- David