linux-kernel - Re: [PATCH 4/5] kunit: tool: use `with open()` in unit test

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Date:   Tue, 1 Dec 2020 15:33:40 +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 4/5] kunit: tool: use `with open()` in unit test

On Tue, Dec 1, 2020 at 7:33 AM Daniel Latypov <dlatypov@...gle.com> wrote:
>
> The use of manual open() and .close() calls seems to be an attempt to
> keep the contents in scope.
> But Python doesn't restrict variables like that, so we can introduce new
> variables inside of a `with` and use them outside.
>
> Do so to make the code more Pythonic.
>
> Signed-off-by: Daniel Latypov <dlatypov@...gle.com>
> ---
I'm fine with this, and it clearly works fine for me. Out of
curiosity, though, is there any difference here other than it being
more usual Python style?

We've struggled a bit in the past toeing a line between trying to
follow "normal" Python style versus adapting it a bit to be more
"kernel-y". Experience thus far has actually been that going out on
our own has caused more problems than it solves, so I'm all for this
change, but I do admit that my brain does understand the older code a
touch more easily.

In any case,
Reviewed-by: David Gow <davidgow@...gle.com>


-- David