Followup-For: Bug #1067311 There seem to be two problems leading to this bug:
1.) - jupyter-nbextension-jupyter-js-widgets is no longer built from src:ipywidgets since -3 - it is not provided by any other package - it ships /etc/jupyter/nbconfig/notebook.d/jupyter-js-widgets.json (and nothing else), this file does not seem to exist in any other package - python3-ipywidgets still depends on it (versioned in -3, unversioned in -4) - perhaps the removal was a mistake? 2.) - there is a circular build-dependency src:ipywidgets Build-Depends: python3-bqplot python3-bqplot Depends: python3-ipywidgets - you need some way to bootstrap ipywidgets, i.e. temporarily drop the cycle, e.g. using build profiles Andreas
