From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCH 1/4] build/python-build-system: Fix easy-install.pth
	collisions.
Date: Mon, 15 Dec 2014 22:24:06 +0100
Message-ID: <87lhm8fvyh.fsf@gnu.org>
References: <CAKrPhPP5GZfKFiUJiQ4L6V86V3YFNYKYY4GPExqXWaUMABfXZg@mail.gmail.com>
	<87y4qaugb1.fsf@gnu.org>
	<CAKrPhPPWSe4gVK6mNKk23+RT_HvdZc06W=wzF=-W49dHnV=cYA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:42490)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1Y0d7n-00079x-EW
	for guix-devel@gnu.org; Mon, 15 Dec 2014 16:24:20 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1Y0d7g-0008Aj-BD
	for guix-devel@gnu.org; Mon, 15 Dec 2014 16:24:15 -0500
Received: from hera.aquilenet.fr ([2a01:474::1]:49094)
	by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <ludo@gnu.org>)
	id 1Y0d7g-0008Af-3w
	for guix-devel@gnu.org; Mon, 15 Dec 2014 16:24:08 -0500
In-Reply-To: <CAKrPhPPWSe4gVK6mNKk23+RT_HvdZc06W=wzF=-W49dHnV=cYA@mail.gmail.com>
	(Federico Beffa's message of "Mon, 15 Dec 2014 21:36:27 +0100")
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
To: Federico Beffa <beffa@ieee.org>
Cc: Guix-devel <guix-devel@gnu.org>

Federico Beffa <beffa@ieee.org> skribis:

> On Sun, Dec 14, 2014 at 9:28 PM, Ludovic Court=C3=A8s <ludo@gnu.org> wrot=
e:

[...]

>> Is PACKAGE.pth a common convention?  I mean, does Python (or
>> setuptools?) actually use files called PYTHON.pth?
>
> Yes, the basename of path configuration files with extension .pth does
> not matter. The site module will load them all. Setuptools, on top of
> easy-install.pth, installs a site.py file. This program adds (with
> site.addsitedir) all directories in PYTHONPATH to the list of
> directories to be processed by the site module.
>
> https://docs.python.org/2/library/site.html
>
> Before writing the path I had conflicts, e.g., between matplotlib and
> cairocffi resulting in import failures. After the patch they work
> nicely together.
>
> Using NAME.pth  instead of easy-install.pth should guarantee that no
> package configuration file collisions occurs between different
> packages installed with setuptools, nor between two versions of the
> same library.

OK, thanks for the explanation.

> From d32c6b5b51c4d61a2aef7467705073dafc1087d5 Mon Sep 17 00:00:00 2001
> From: Federico Beffa <beffa@fbengineering.ch>
> Date: Sat, 13 Dec 2014 22:19:08 +0100
> Subject: [PATCH 1/4] build/python-build-system: Fix easy-install.pth
>  collisions.
>
> * guix/build/python-build-system.scm (rename-pth-file): New rename-pth-fi=
le
>   phase and corresponding function.

Perfect, thanks!

Ludo=E2=80=99.