I have previously used Jupyter Notebook (python 2 and 3) on my mac. After not using it for a while, there seems to be a problem I am unable to fix. When startin
Jupyter Notebook
Running the following version of jupyter and tornado seemed to solve the issue:
Jupyter: 4.4.0
Tornado: 4.5.3
I needed to downgrade my version of tornado (which was 5.0.2)