I made this out of pure rage due to Squarespace not providing a means of exporting the images/asset-library. In my use case, I only had about 50 images, and no video, and used a basic user login. This wont work with out modifications for users with SSO/Social logins.
To get it to work copy the env.example to .env
do the normal python virtual env bits
python -m venv .venv
For Linux
.venv/bin/activate
or for Windows
.venv\Scripts\activate.ps1
then run python scrapespace.py