Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:jupyter/openSUSE_Tumbleweed/devel:languages:python:jupyter.repo
zypper refresh
zypper install python-traitlets
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:jupyter/15.6/devel:languages:python:jupyter.repo
zypper refresh
zypper install python-traitlets
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:jupyter/15.5/devel:languages:python:jupyter.repo
zypper refresh
zypper install python-traitlets