I followed the instructions in How to install SageMath kernel in Jupyter but as soon as a I create a new SageMath worksheet in the Jupyter Notebook, the worksheet opens, and, after a few seconds, I get a message saying the Sage kernel died. This, without having the time to ask for the least computation.
I don't experiment this issue with the Python 3 kernel. I am running all this on Ubuntu 18.04.
Could it be related to my installation of Jupyter, which is based on Python 3, while, if I understand well, Sage runs using Python 2.
I installed Jupyter following the pip install instructions
of jupyter.org:
$ python3 -m pip install --upgrade pip
$ python3 -m pip install jupyter
