[Python-modules-team] Bug#936745: ipywidgets: Python2 removal in sid/bullseye

[peter green]

unblock 936745 by 936995
severity 936745 serious
thanks

matplotlib2 no longer has any dependencies or build-dependencies on packages built from the ipywidgets source.

According to https://ftp-master.debian.org/users/dktrkranz/NBS ipywidgets has dependencies or build-depdencies on several packages that are no longer built by their corresponding source packages.

ipywidgets build-depends on python-coverage.
python-widgetsnbextension depends on python-notebook

It seems like it is time to drop python2 support from this package.