linux-kernel - Re: [PATCH] kunit: tool: Import missing importlib.abc

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Date:   Wed, 12 Jan 2022 15:44:57 -0800
From:   Daniel Latypov <dlatypov@...gle.com>
To:     Michał Winiarski <michal.winiarski@...el.com>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        kunit-dev@...glegroups.com,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: Re: [PATCH] kunit: tool: Import missing importlib.abc

On Wed, Jan 12, 2022 at 3:35 PM Michał Winiarski
<michal.winiarski@...el.com> wrote:
>
> Python 3.10.0 contains:
> 9e09849d20 ("bpo-41006: importlib.util no longer imports typing (GH-20938)")
>
> It causes importlib.util to no longer import importlib.abs, which leads
> to the following error when trying to use kunit with qemu:
> AttributeError: module 'importlib' has no attribute 'abc'. Did you mean: '_abc'?
>
> Add the missing import.
>
> Signed-off-by: Michał Winiarski <michal.winiarski@...el.com>

Reviewed-by: Daniel Latypov <dlatypov@...gle.com>

Thanks for catching this! I completely forgot to add the import.

For context to others, the relevant line is
216          assert isinstance(spec.loader, importlib.abc.Loader)
which was added by me in commit 52a5d80a2225 ("kunit: tool: fix
typecheck errors about loading qemu configs").

We could potentially add a Fixes: tag on this, but this looks good to me.

> ---
>  tools/testing/kunit/kunit_kernel.py | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
> index 44bbe54f25f1..3c4196cef3ed 100644
> --- a/tools/testing/kunit/kunit_kernel.py
> +++ b/tools/testing/kunit/kunit_kernel.py
> @@ -6,6 +6,7 @@
>  # Author: Felix Guo <felixguoxiuping@...il.com>
>  # Author: Brendan Higgins <brendanhiggins@...gle.com>
>
> +import importlib.abc
>  import importlib.util
>  import logging
>  import subprocess
> --
> 2.34.1
>