GNU bug report logs - #53530
python 3.10 support

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Thomas Klausner <tk <at> giga.or.at>
To: bug-automake <at> gnu.org
Subject: python 3.10 support
Date: Tue, 25 Jan 2022 19:55:13 +0100

[Message part 1 (text/plain, inline)]

Hi!

automake's python.m4 file does not support python 3.10, the current
stable python version.

Arguably, 3.11 could also be supported since a release might be out
before the next automake release ;)

Patch for 3.10 attached.

Cheers,
 Thomas

[patch-m4_python.m4 (text/plain, attachment)]

Message #8 received at 53530 <at> debbugs.gnu.org (full text, mbox):

From: Mike Frysinger <vapier <at> gentoo.org>
To: 53530 <at> debbugs.gnu.org
Subject: [PATCH] python: add 3.10 - 3.15 to the version search list
Date: Wed, 26 Jan 2022 06:37:40 -0500

Fixes automake bug https://bugs.gnu.org/53530.

Based on the cadence of Automake releases, add the current Python
release (3.10), the current Python development (3.11), and then 4
more versions on top of that.  It doesn't hurt to check for a few
extra versions here since this is the fallback logic when the main
`python` and `python3` programs aren't found.

* m4/python.m4: Add python3.10 - python3.15.
---
 m4/python.m4 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/m4/python.m4 b/m4/python.m4
index f5b5371c6a63..6653e4d89eb2 100644
--- a/m4/python.m4
+++ b/m4/python.m4
@@ -38,6 +38,7 @@ AC_DEFUN([AM_PATH_PYTHON],
   dnl supported. (2.0 was released on October 16, 2000).
   m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
 [python python2 python3 dnl
+ python3.15 python3.14 python3.13 python3.12 python3.11 python3.10 dnl
  python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
  python3.2 python3.1 python3.0 dnl
  python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
-- 
2.34.1

Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Zack Weinberg" <zack <at> owlfolio.org>
To: "Brad House" <bug-automake <at> gnu.org>
Subject: Re: bug#53530: [PATCH] python: add 3.10 - 3.15 to the version search
 list
Date: Wed, 26 Jan 2022 10:09:15 -0500

On Wed, Jan 26, 2022, at 6:37 AM, Mike Frysinger wrote:
> Fixes automake bug https://bugs.gnu.org/53530.
>
> Based on the cadence of Automake releases, add the current Python
> release (3.10), the current Python development (3.11), and then 4
> more versions on top of that.  It doesn't hurt to check for a few
> extra versions here since this is the fallback logic when the main
> `python` and `python3` programs aren't found.

It's unfortunate that we keep having to update this list.  I wonder if there's a clean way to detect all the available /^python\d\.\d+/ commands and then sort them.

zw

Message #14 received at 53530 <at> debbugs.gnu.org (full text, mbox):

From: Mike Frysinger <vapier <at> gentoo.org>
To: Zack Weinberg <zack <at> owlfolio.org>
Cc: 53530 <at> debbugs.gnu.org
Subject: Re: bug#53530: [PATCH] python: add 3.10 - 3.15 to the version search
 list
Date: Wed, 26 Jan 2022 12:21:38 -0500

[Message part 1 (text/plain, inline)]

On 26 Jan 2022 10:09, Zack Weinberg wrote:
> On Wed, Jan 26, 2022, at 6:37 AM, Mike Frysinger wrote:
> > Fixes automake bug https://bugs.gnu.org/53530.
> >
> > Based on the cadence of Automake releases, add the current Python
> > release (3.10), the current Python development (3.11), and then 4
> > more versions on top of that.  It doesn't hurt to check for a few
> > extra versions here since this is the fallback logic when the main
> > `python` and `python3` programs aren't found.
> 
> It's unfortunate that we keep having to update this list.  I wonder if there's a clean way to detect all the available /^python\d\.\d+/ commands and then sort them.

i posted some thoughts to Kerry, but looks like that thread went private.
so i'll paste them here.

Python is designed to have an arbitrary number of versions installed in
parallel, and for the canonical `python` to be pointing to any of them.
we have requests (that i think we should support) for compiling more than
one version in a single build.

so i agree that this handcoded list sucks, but i'm not sure of a better
way atm to handle it.  we could snoop $PATH manually with globs looking
for python[0-9].[0-9]+ and then sort by version, but doing that portably
is a bit of a nightmare, and i don't think autoconf provides any macros
off the shelf that we could leverage.

we could make the code a bit dynamic -- start at 3.0 and then count up
remembering the last version we saw, and repeat until we hit like 20
missing versions in a row.  but that doesn't exactly improve the code
that much, and this hardcoded version list is a fallback for when the
canonical `python` & `python3` are missing.  which, while possible,
shouldn't be that common ...
-mike

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Message #19 received at 53530-done <at> debbugs.gnu.org (full text, mbox):

From: Mike Frysinger <vapier <at> gentoo.org>
To: 53530-done <at> debbugs.gnu.org
Subject: Re: bug#53530: [PATCH] python: add 3.10 - 3.15 to the version search
 list
Date: Wed, 26 Jan 2022 21:59:26 -0500

[Message part 1 (text/plain, inline)]

On 26 Jan 2022 06:37, Mike Frysinger wrote:
> Fixes automake bug https://bugs.gnu.org/53530.
> 
> Based on the cadence of Automake releases, add the current Python
> release (3.10), the current Python development (3.11), and then 4
> more versions on top of that.  It doesn't hurt to check for a few
> extra versions here since this is the fallback logic when the main
> `python` and `python3` programs aren't found.
> 
> * m4/python.m4: Add python3.10 - python3.15.
> ---
>  m4/python.m4 | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/m4/python.m4 b/m4/python.m4
> index f5b5371c6a63..6653e4d89eb2 100644
> --- a/m4/python.m4
> +++ b/m4/python.m4
> @@ -38,6 +38,7 @@ AC_DEFUN([AM_PATH_PYTHON],
>    dnl supported. (2.0 was released on October 16, 2000).
>    m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
>  [python python2 python3 dnl
> + python3.15 python3.14 python3.13 python3.12 python3.11 python3.10 dnl
>   python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 dnl
>   python3.2 python3.1 python3.0 dnl
>   python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 dnl
> -- 
> 2.34.1

i've pushed this w/a NEWS update
  - AM_PATH_PYTHON will also search for Python versions 3.10 - 3.15.  It has
    previously searched for 3.0 - 3.9.
-mike

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