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

cortical
0.1.9

This version was deleted from PyPI around 2026-05-14. Installing fails with:
$ pip3 install cortical==0.1.9 ERROR: Could not find a version that satisfies the requirement cortical==0.1.9
View other deleted versions of cortical

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/2026-05-13/ \ cortical==0.1.9
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Or, download files manually

And install manually via pip:
cortical-0.1.9-py3-none-any.whl (264.3KB)
cortical-0.1.9.tar.gz (256.3KB)