all messages for Guix-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Ricardo Wurmus <rekado@elephly.net>
To: Pjotr Prins <pjotr.public12@thebird.nl>
Cc: guix-devel@gnu.org
Subject: Re: PYTHONPATH woes
Date: Fri, 23 Feb 2018 20:36:46 +0100	[thread overview]
Message-ID: <87r2pbpkfl.fsf@elephly.net> (raw)
In-Reply-To: <20180223165953.GA6088@thebird.nl>


Pjotr Prins <pjotr.public12@thebird.nl> writes:

> Then there are people
> using virtualenv on top of Guix ...

Pjotr brings up a good point: can virtualenvs be composed?  Do users
still have a way to override modules via PYTHONPATH or some other
mechanism if we were to create virtualenvs by default?

> I think the problem of mixing module versions has to be resolved
> through profiles. That should just work(tm).

@Pjotr: But we have seen that this doesn’t work as is and currently
requires user intervention.  We cannot expect users to separate all
Python 2 things from all Python 3 things because it is not even obvious
in all cases that a tool results in Python modules to be installed to
the profile.

> For this I suggest we tell Python2 to only use PYTHONPATH2. That way
> there is no interference. Python2 is being phased out (it is obsolete)
> and upstream should consider such a solution too.

I’d like to avoid radical patching when Python seems to have some
support for ignoring directories on the PYTHONPATH that don’t include
the correct version number.

Patching Python 2 is still an option, but I’d like to explore (and
understand) upstream mechanisms first.

> With Ruby we have a similar interpreter issue - even more fine grained
> between versions. It is a pain. But there is no real solution other
> than using profiles properly.

Do Ruby *executables* also suffer from accidental dependency injection
as Ribodiff does in this case?

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

  reply	other threads:[~2018-02-23 19:37 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-20 10:53 PYTHONPATH woes Ricardo Wurmus
2018-02-20 15:01 ` Pjotr Prins
2018-02-20 15:18   ` Andy Wingo
2018-02-20 16:40     ` Pjotr Prins
2018-02-20 15:30   ` Ricardo Wurmus
2018-02-21 21:58 ` Hartmut Goebel
2018-02-22 15:30   ` Ricardo Wurmus
2018-02-22 18:35     ` Hartmut Goebel
2018-02-22 20:42     ` Hartmut Goebel
2018-02-23  8:45       ` Vincent Legoll
2018-02-23 12:36     ` Hartmut Goebel
2018-02-23 16:59       ` Pjotr Prins
2018-02-23 19:36         ` Ricardo Wurmus [this message]
2018-02-23 23:54           ` Pjotr Prins
2018-02-24 10:44         ` Hartmut Goebel
2018-02-24 10:49           ` Hartmut Goebel
2018-02-27 11:43           ` PYTHONPATH issue analysis - part 1 (was: PYTHONPATH woes) Hartmut Goebel
2018-03-13 21:54             ` PYTHONPATH issue analysis - part 1 Hartmut Goebel
2018-02-27 11:49           ` PYTHONPATH issue analysis - part 2 (was: PYTHONPATH woes) Hartmut Goebel
2018-03-11 21:47           ` PYTHONPATH issue analysis - part 3 " Hartmut Goebel
2018-03-13 21:23             ` PYTHONPATH issue analysis - part 3 Ludovic Courtès
2018-03-13 21:44               ` Pjotr Prins
2018-03-13 22:02                 ` Hartmut Goebel
2018-03-14  7:49                   ` Pjotr Prins
2018-03-14  9:04                     ` Hartmut Goebel
2018-03-14 18:21                       ` Pjotr Prins
2018-03-15 19:48                     ` Hartmut Goebel
2018-03-13 21:47               ` Hartmut Goebel
2018-03-14  9:41                 ` Ludovic Courtès
2018-03-13 21:51               ` Hartmut Goebel
2018-03-14  0:10               ` Ricardo Wurmus
2018-03-15  9:09                 ` Ludovic Courtès
2018-03-15 19:30             ` PYTHONPATH issue explanation Hartmut Goebel
2018-03-17  1:41               ` 宋文武
2018-03-17 10:07                 ` Ricardo Wurmus
2018-03-17 22:46                   ` Hartmut Goebel
2018-03-17 22:53                   ` Hartmut Goebel
2018-03-17 11:18                 ` [PATCH] gnu: python: Honor 'GUIX_PYTHON_X_Y_SITE_PACKAGES' 宋文武
2018-03-17 21:53                   ` Hartmut Goebel
2018-03-18  0:04                     ` 宋文武
2018-03-18  0:07                   ` 宋文武
2018-03-17 22:04                 ` PYTHONPATH issue explanation Hartmut Goebel
2018-03-18  0:57                   ` 宋文武
2018-03-18 10:05                     ` 宋文武
2018-03-24 20:47               ` Chris Marusich
2018-04-16 14:21             ` PYTHONPATH - let's systematically tame the baest Hartmut Goebel
2018-04-17  1:47               ` 宋文武
2018-04-17  7:03                 ` Hartmut Goebel
2018-04-18  8:34               ` Ricardo Wurmus

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87r2pbpkfl.fsf@elephly.net \
    --to=rekado@elephly.net \
    --cc=guix-devel@gnu.org \
    --cc=pjotr.public12@thebird.nl \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/guix.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.