Problems upgrading Ipython (prompt_toolkit incompatibilities)

Question

Trying to open a jupyter notebook file (.ipynb file) with this command ipython notebook filename.ipynb then I am getting Below Error while using ipython..

Answer 1

Just got the same problem.

The solution for me was to pip uninstall prompt-toolkit and pip install prompt-toolkit. This uninstalled v1.0.5 and installed v2.0.4.