[Python-modules-team] Bug#884528: python3-ipykernel: No module named ipykernel_launcher when trying to use python3 kernel on jupyter-notebook

[Édouard WILLISSECK]

I actually found that I had ipykernel install in my `pip3 list` even
after deleting it with apt.

I removed everything related to jupyter and ipykernel on apt and
pip/pip3. Reinstalled using apt and the python3 kernel works now.

I guess this can be closed, sorry for the inconvenience.