Reusable Python functions

Open FonctionsReutilisables.ipynb in VS Code with the Microsoft Python
and Jupyter extensions. Select the kernel from your Python environment,
then run every cell in order.

Verified version: Python 3.14.8. The examples need no additional library;
ipykernel provides Jupyter execution.

The notebook contains short extracts from the first data rows of
StudentPerformanceFactors.xlsx as explicit lists. The full workbook
is not included and is not needed for this lesson.
Data source: https://www.kaggle.com/datasets/lainguyn123/student-performance-factors
