Running this script, as always, requires installing an external API. In this case, it's this unofficial Piazza API. Simply place generate_data.py in the piazza-api folder, and you're good to go.
To run this program, navigate to the correct folder and run the following commands:
$ cd piazza-api # ensure that you are in the folder where you downloaded the piazza-api repo
$ python3 generate_data.py