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

cogent-base

This package was deleted from PyPI around 2025-10-16. Installing fails with:
$ pip3 install cogent-base ERROR: Could not find a version that satisfies the requirement cogent-base (from versions: none) ERROR: No matching distribution found for cogent-base

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/2025-10-15/ \ cogent-base
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Or, download files manually

Choose a version to see all deleted wheels and files. We only show versions that have been deleted on PyPI.
0.1.1
0.1.2
0.1.3
0.1.5
0.1.6
0.1.8
0.1.10
0.1.15
0.1.16
0.1.17