Gymnasium

In my attempt to reproduce this article I learned that:

1. Gym is now Gymnasium
2. There’s a ton of outdated information out there
3. Gymnasium uses PyGame
4. Snake is not in their environments I ran the following in a virtual environment I made (python -m venv env;source env/bin/activate, no miniconda required):

pip install wheel setuptools pip --upgrade
pip install swig
pip install gymnasium[box2d]

Note that this page explitly says to use pip install "gymnasium[box2d]" but it only worked for me without the quotation-marks (said it couldn’t find swig).