From: Efraim Flashner <efraim@flashner.co.il>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: Fixing package-with-python2
Date: Tue, 2 Feb 2016 09:50:44 +0200 [thread overview]
Message-ID: <20160202095044.0f7c8af4@debian-netbook> (raw)
In-Reply-To: <87vb68nkyb.fsf@gnu.org>
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On Mon, 01 Feb 2016 23:07:40 +0100
ludo@gnu.org (Ludovic Courtès) wrote:
>
> An idea I haven’t taken the time to test yet would be to use
> ‘properties’:
>
> (define python-foobar ;with Python 3
> (package
> (name "foobar")
> ;; Specify which Python 2 variant to use.
> (properties `((python2-variant . ,(delay python2-foobar))))))
>
> (define python2-foobar
> (package (inherit python-foobar)
> ;; … stuff beyond the mechanical python 2→3 switch…
> ))
>
> ‘package-with-python2’ would honor this ‘python2-variant’ property.
>
> Thoughts?
>
> Ludo’.
I like a lot that it should remove the need to propagate the special python2-
packages all the way out to the leaf packages. What else could we use this
for? minimal/bootstrap versions?
"The python people" have said that one day python4 will happen and they don't
plan on having it be as much of a break like the python2->python3 change was.
package-with-explicit-python is already set up to handle having a main
package definition and multiple automated definitions.
I prefer when define-public is the start of a package definition, but here's
an idea I just had about refactoring out the common parts of python packages.
(let*
(name "python-foobar")
(version "1.2.3")
...
(define-public python3-foobar
(package-with-python3 python-foobar)
(define-public python2-foobar
(package (inherit (package-with-python2 python-foobar))
(native-inputs
`(("python2-setuptools" ,python2-setuptools))
,@(package-native-inputs foobar)))))
--
Efraim Flashner <efraim@flashner.co.il> אפרים פלשנר
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next prev parent reply other threads:[~2016-02-02 7:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-01 13:49 Fixing package-with-python2 (was: Package transformations) Thompson, David
2016-02-01 14:26 ` Pjotr Prins
2016-02-01 16:35 ` Efraim Flashner
2016-02-01 16:49 ` Thompson, David
2016-02-01 17:12 ` Andreas Enge
2016-02-01 22:11 ` Fixing package-with-python2 Ludovic Courtès
2016-02-01 22:07 ` Ludovic Courtès
2016-02-01 22:12 ` Thompson, David
2016-02-02 7:50 ` Efraim Flashner [this message]
2016-02-03 8:47 ` bug#22437: " Ludovic Courtès
2016-02-03 8:47 ` Ludovic Courtès
2016-02-07 8:17 ` bug#22437: " Efraim Flashner
2016-02-07 9:32 ` Ricardo Wurmus
2016-02-07 20:35 ` Ludovic Courtès
2016-02-07 20:35 ` Ludovic Courtès
2016-02-07 9:32 ` Ricardo Wurmus
2016-02-07 20:42 ` Ludovic Courtès
2016-02-08 15:11 ` Ludovic Courtès
2016-02-08 15:11 ` Ludovic Courtès
2016-02-07 8:17 ` Efraim Flashner
2016-02-07 11:09 ` Andreas Enge
2016-02-07 20:39 ` Ludovic Courtès
2016-02-07 20:39 ` Ludovic Courtès
2016-02-07 11:09 ` Andreas Enge
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