From: Marco Atzeri <marco.atzeri@gmail.com>
To: cygwin-apps@cygwin.com
Subject: Re: [patch] cygport : update to python 3.9
Date: Mon, 3 Jan 2022 22:42:34 +0100 [thread overview]
Message-ID: <a2a6a946-3dcb-e29c-5825-e084da6ac614@gmail.com> (raw)
In-Reply-To: <cfebbf02-4541-b33b-2b11-61ffd5b158c6@dronecode.org.uk>
On 03.01.2022 18:37, Jon Turney wrote:
> On 31/12/2021 10:00, Marco Atzeri wrote:
>> Attached patch moves "default" from 3.6 to 3.9
>> Other point:
>>
>> As 3.5 was never really deployed, I think we can remove it from the
>> distribution.
>>
>> As we have a lot of python3-* is obsoleted py python36-*
>> what is the best way to updated to python39-* when available ?
>
> Good question. Note the comment before this hunk:
>
>> @@ -128,7 +128,7 @@
>> # and MUST NOT be updated when defaults change
>> case ${ver} in
>> 2.7) declare -g
>> python27_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python-${PYTHON_WHEEL_NAME}
>> python2-${PYTHON_WHEEL_NAME}" ;;
>> - 3.6) declare -g
>> python36_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python3-${PYTHON_WHEEL_NAME}"
>> ;;
>> + 3.9) declare -g
>> python39_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python3-${PYTHON_WHEEL_NAME}"
>> ;;
>> esac
>> declare -g
>> python${ver/.}_${PYTHON_WHEEL_NAME//[-\.]/_}_CONTENTS="usr/lib/python${ver}/site-packages/
>> usr/share/doc/python${ver/.}-${PYTHON_WHEEL_NAME}"
>> done
>
> which in full reads:
>
> "
> # these were 2&3 at the time of the XY-version split,
> # and MUST NOT be updated when defaults change
> "
>
> So it seems to me that either that hunk is wrong, or that comment needs
> updating
>
> I'm not sure what the intent is here.
I guess Yaakov was thinking of python3 as the older alias of python36,
and **only** for that. As Python2 is the older alias of python27.
In that case make sense to leave as the comment says.
Probably I should write entries in the FAQ and documentation
to clarify this scope.
Following is a sort of RFC, so let me know your opinion.
Currently we have two type of Python packages
1) Pure python that exists at max as 2.7 3.6 3.7 3.8 3.9 plus 2 and 3
in that case 2/2.7 3/3.6 are EOL;
I stopped last year to update the 2.7 and I am thinking to do the
same for 3.6 now.
I do not see the need to continue to update 3.7, it never become
default as we jumped from 3.6 to 3.8 and it is not more
active upstream:
https://www.python.org/dev/peps/pep-0537/#lifespan
We can update the 3.8 and 3.9 while preparing/testing for 3.10
source package will continue to use the "python-*" form, while
"python3-*" should not be used.
2) python packages derived from other packages, where the
nomenclature is not uniform:
Where we have all variants
libxml2 python27-libxml2
libxml2 python36-libxml2
libxml2 python37-libxml2
libxml2 python38-libxml2
Only one as I moved from supporting 2 to supporting only 3
postgresql postgresql-plpython
To hybrid version
openbabel python2-openbabel (not updated anymore)
openbabel python38-openbabel
I think we should stop to call derived packages "python3-*".
Or we use the full version as python38-openbabel or
no version at all as python-gdal
In general
We should also stop to pull as dependency "python3"
or "python3-devel" as build dependency.
Use the full version for dependencies.
Plus use "python3_fix_shebang SCRIPT" for setting the proper
interpreter and avoid the issue seen on mercurial and dblatex
https://cygwin.com/pipermail/cygwin/2021-December/250282.html
I used a cruder version but python3_fix_shebang should do the work
Regards
Marco
next prev parent reply other threads:[~2022-01-03 21:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-31 10:00 Marco Atzeri
2022-01-03 17:37 ` Jon Turney
2022-01-03 21:42 ` Marco Atzeri [this message]
2022-05-29 15:54 ` Jon Turney
2022-07-03 12:22 ` Jon Turney
2022-07-03 12:47 ` Marco Atzeri
2022-01-04 16:05 ` Marco Atzeri
2022-01-08 16:32 ` Jon Turney
2022-01-08 17:12 ` Marco Atzeri
2022-06-29 15:36 ` Hamish McIntyre-Bhatty
2022-06-29 15:46 ` Marco Atzeri
2022-06-29 15:51 ` Hamish McIntyre-Bhatty
2022-06-29 18:35 ` Hamish McIntyre-Bhatty
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