Subject: bug#55448: ‘jupyter’ package uninstallable due to colliding ‘python-prompt-toolkit’

From: Ludovic Courtès <[email-masked]>
Date: Mon, 16 May 2022 14:32:38 +0200

Hello,

The ‘jupyter’ package is currently uninstallable:

--8<---------------cut here---------------start------------->8---
$ guix time-machine --commit=40a729a0e6f1d660b942241416c1e2c567616d4d -- install -p /tmp/test-profile-for-jupyter jupyter --no-grafts
guix install: warning: Consider running 'guix pull' followed by
'guix package -u' to get up-to-date packages and security updates.

The following package will be installed:
   jupyter 1.0.0

guix install: error: profile contains conflicting entries for python-prompt-toolkit
guix install: error:   first entry: [email-masked] /gnu/store/c7z70ria845j3ifajj225h704hzk4l51-python-prompt-toolkit-2.0.7
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:   second entry: [email-masked] /gnu/store/0zb6bgwhczmxh9y6dy76246kyvlnlrhv-python-prompt-toolkit-3.0.29
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
guix install: error:    ... propagated from [email-masked]
hint: You cannot have two different versions or variants of `jupyter' in the same profile.
--8<---------------cut here---------------end--------------->8---

(The hint is bogus…)

Ludo’.