From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Subject: Re: installing python 2 and python 3 in the same profile Date: Thu, 15 Mar 2018 10:11:48 +0100 Message-ID: <874llhwvmz.fsf@gnu.org> References: <87y3j4l3xj.fsf@mdc-berlin.de> <87muzbzlqk.fsf@gnu.org> <38c1da8e-5af7-7e6d-f754-8dcf4a13c0b7@fastmail.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:55264) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ewOvS-0005X5-Cy for guix-devel@gnu.org; Thu, 15 Mar 2018 05:11:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ewOvP-00028c-5j for guix-devel@gnu.org; Thu, 15 Mar 2018 05:11:54 -0400 Received: from hera.aquilenet.fr ([185.233.100.1]:57112) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ewOvO-00027Z-V8 for guix-devel@gnu.org; Thu, 15 Mar 2018 05:11:51 -0400 In-Reply-To: <38c1da8e-5af7-7e6d-f754-8dcf4a13c0b7@fastmail.net> (Konrad Hinsen's message of "Wed, 14 Mar 2018 15:30:08 +0100") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Konrad Hinsen Cc: guix-devel@gnu.org Hi, Konrad Hinsen skribis: > On 14/03/2018 12:39, Hartmut Goebel wrote: >> Am 13.03.2018 um 22:52 schrieb Ludovic Court=C3=A8s: >>> 2. Use different package names when we know things can be >>> parallel-installed: =E2=80=9Cpython2=E2=80=9D vs. =E2=80=9Cpython= =E2=80=9D (I=E2=80=99m talking about the >>> package name, not its version string.) That=E2=80=99s what distr= os usually >>> do, and I think it=E2=80=99s good enough. >> >> I'd prefer this. > > That sounds like a good basis. But perhaps "python" for Python 2 and > "python3" for Python 3 would make more sense, since those are the > names of the executables. Yes. OTOH we use the =E2=80=9Cpython2-=E2=80=9D prefix for 2.x packages and= =E2=80=9Cpython-=E2=80=9D for 3.x packages. At any rate, that=E2=80=99s a change we should do now in =E2=80=98core-upda= tes=E2=80=99. Ricardo? > This does of course raise the question of how this will evolve in the > long run, but since so many bad decisions were already taken, I am not > trying to guess what will happen. For now, the upstream recommendation > remains to use "python" and "python3" to distinguish the > executables. But what will happen in 2020? The Python community might > be tempted to change the naming to mark the end of Python 2 support, > but that would be at the price of another round of breaking > everybody's scripts. Not our business I=E2=80=99d say. :-) Ludo=E2=80=99.