Source: jupyter-core Version: 4.7.1-1+deb11u1 Followup-For: Bug #1068901 Dear Maintainer, The issue is discussed upstream https://github.com/jupyter/notebook/issues/7048 Recommendation is to update traitlets at least to 5.9.0. FYI, on my debian SID, traitlets is 5.14.3. Some comments of the issues also mention that this only hides the bug in notebook by making traitlets more tolerant
So it seems that the real solution is this pull request https://github.com/jupyter/notebook/pull/7051/files fixing the default contents manager class name (and resorting to default warnings.warn) -- System Information: Debian Release: trixie/sid APT prefers oldstable-security APT policy: (500, 'oldstable-security'), (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 6.8.12-amd64 (SMP w/8 CPU threads; PREEMPT) Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system)