The content of the preparatory material is to introduce you to time series data and basic methods of working/viewing time series data.
Follow the content in either prep.py or prep.ipynb files. The recommendation is to clone the repo working in VS Code or start a GitHub Codespace to work through the content.
The Python files are executed assuming a relative path or your current working directory is the repo folder.
The Plotly charts in the Jupyter file preview does not render. You must run the scripts yourself to see the charts.