Dear Student,
During the optional pre-session on Python and data we will be using the following link:
https://colab.research.google.com/drive/1SIpakEL2kJa3vzLcSNCL8Gt2JhMmpy_F?usp=sharing
It's a notebook hosted on Google Colab and it will require Google account to execute the code.
You can also refer to the Python for Economists primer by Alex Bell linked below, but note that it covers more material than is needed for this course:
https://scholar.harvard.edu/files/ambell/files/python_for_economists.pdf