You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

aukland-compsci-220-introduction-to-algorithms-data-structures-formal-languages-4e
2024.3.1.0

This version was deleted from PyPI around 2024-03-14. Installing fails with:
$ pip3 install aukland-compsci-220-introduction-to-algorithms-data-structures-formal-languages-4e==2024.3.1.0 ERROR: Could not find a version that satisfies the requirement aukland-compsci-220-introduction-to-algorithms-data-structures-formal-languages-4e==2024.3.1.0

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-03-13/ \ aukland-compsci-220-introduction-to-algorithms-data-structures-formal-languages-4e==2024.3.1.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)