From: ludo@gnu.org (Ludovic Courtès)
To: Federico Beffa <beffa@ieee.org>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: [PATCH 1/4] build/python-build-system: Fix easy-install.pth collisions.
Date: Mon, 15 Dec 2014 22:24:06 +0100 [thread overview]
Message-ID: <87lhm8fvyh.fsf@gnu.org> (raw)
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")
Federico Beffa <beffa@ieee.org> skribis:
> On Sun, Dec 14, 2014 at 9:28 PM, Ludovic Courtès <ludo@gnu.org> wrote:
[...]
>> 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-file
> phase and corresponding function.
Perfect, thanks!
Ludo’.
prev parent reply other threads:[~2014-12-15 21:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-14 19:39 [PATCH 1/4] build/python-build-system: Fix easy-install.pth collisions Federico Beffa
2014-12-14 20:28 ` Ludovic Courtès
2014-12-15 20:36 ` Federico Beffa
2014-12-15 21:24 ` Ludovic Courtès [this message]
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