I enjoyed the course. Nevertheless I noticed that you often do not use the format which is suggest by PEP. You for example write print (n) instead of print(n). Also you are still using Jupyter Notebook while Jupyter Lab is much better. As I did not use Jupyter Notebook that often and it Jupyter Lab seems to be a much better version of it it's not that dramatic. Just the first sessions with key shortcuts and what you can and cannot do when browsing python files in notebook are outdated. Why should I learn Jupyter Notebook if there is Jupyter Lab and Jupyter Hub.