Jupyter notebook: TypeError: __init__() got an unexpected keyword argument 'io_loop'

Question

I recently installed jupyter notebooks on my macbook pro. When I create a new notebook, I see the following exception coming continuously on the terminal where I started the

Answer 1

Ran into this error after updating the ipykernel module.

After upgrading the jupyter module it started without errors. On Ubuntu I ran the following to update jupyter:

sudo -H pip install jupyter

Or for Python3

sudo -H pip3 install jupyter