Hi @Bryce
From the readme for the git repository currently used by the tutorial:
This Python code is being phased out and replaced with https://github.com/rpi-ws281x/rpi-ws281x-python
If you’re just looking to install the Python library, you can: sudo pip install rpi_ws281x
or sudo pip3 install rpi_ws281x
depending on your Python version of choice or find releases here: https://github.com/rpi-ws281x/rpi-ws281x-python/releases
So please update the tutorial to install the module with pip/pip3 as above.
Thanks.
Edit: fix autocorrect f*up