Great job on this lab!

About the file type: The deliverable in this lab was main.py – a Python file, but you submitted a Jupyter Notebook (file extension .ipynb). It is important to pay attention to the kind of file you need, because .py are executable via the terminal and you may need that sometimes.

Jupyter is easier to check, because you can run each cell independently, and a .py file runs the whole code, so a suggested workflow could be to develop your code on a notebook and then, when everything is ok, click File->Download as->Python(.py) and now you have your code as Python file. Just move it from your Downloads folder to your repo folder and add-commit-push