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bug#27572: simultaneous installation of python2 and python3 fails
From: |
Ludovic Courtès |
Subject: |
bug#27572: simultaneous installation of python2 and python3 fails |
Date: |
Fri, 07 Jul 2017 13:27:01 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Hello Diego,
Diego Nicola Barbato <address@hidden> skribis:
> When running the command "guix pull && guix package -i address@hidden python"
> instead of installing the latest version of python2 and python3, as it
> used to do until about four weeks ago, guix gives following error
> message (hash values replaced with ...):
>
> guix package: error: profile contains conflicting entries for python:out
> guix package: error: first entry: address@hidden:out
> /gnu/store/...-python-2.7.13
> guix package: error: second entry: address@hidden:out
> /gnu/store/...-python-3.5.3
Indeed, Guix now refuses to install two different versions or variants
of the same package since in general they would conflict.
In this particular case, they do not actually conflict, I think, since
address@hidden provides executables prefixed by “3” whereas address@hidden does
not.
Perhaps we should rename “python” to “python2” or something like that?
In the meantime, I recommend using separate profiles for your Python 2
and Python 3 development environments. Is that a viable option for you?
Thanks,
Ludo’.