linux-kernel - Re: Python 2.7 support and automarkup.py - Was: Re: [PATCH v2 1/5] docs: automarkup.py: Use new C roles in Sphinx 3

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Message-ID: <20201030081440.47a74dad@lwn.net>
Date:   Fri, 30 Oct 2020 08:14:40 -0600
From:   Jonathan Corbet <corbet@....net>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Dafna Hirschfeld <dafna.hirschfeld@...labora.com>,
        "Nícolas F. R. A. Prado" 
        <nfraprado@...tonmail.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, lkcamp@...ts.libreplanetbr.org,
        andrealmeid@...labora.com
Subject: Re: Python 2.7 support and automarkup.py - Was: Re: [PATCH v2 1/5]
 docs: automarkup.py: Use new C roles in Sphinx 3

On Fri, 30 Oct 2020 15:10:26 +0100
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> wrote:

> I see a few alternatives:
> 
> 1) fix automarkup.py for it to work again with python 2.7;
> 
> 2) conf.py could gain some logic to disable automarkup with
>    Python < 3;
> 
> 3) scripts/sphinx-pre-install already detects Python version. 
>    It should likely be easy to ask the user to use python 3.x,
>    if an older version is detected.
> 
> Doing (1) or (2) will require an additional step when we raise
> the bar for Python version.

We haven't dropped support for Python 2 yet, so this constitutes a
regression.  My own approach would be something like this at the top of
automarkup.py:

	if python2:
	    ascii = 0
	else:
	    ascii = re.ASCII

...then s/re.ASCII/ascii/ throughout.  I can probably put together
something later this morning.

jon