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

foundational
0.3.7

This version was deleted from PyPI around 2024-04-04. Installing fails with:
$ pip3 install foundational==0.3.7 ERROR: Could not find a version that satisfies the requirement foundational==0.3.7
View other deleted versions of foundational

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/2024-04-03/ \ foundational==0.3.7
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Or, download files manually

And install manually via pip:
foundational-0.3.7-py3-none-any.whl (20.3KB)
foundational-0.3.7.tar.gz (14.5KB)