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

patronus
0.21.0

This version was deleted from PyPI around 2025-08-13. Installing fails with:
$ pip3 install patronus==0.21.0 ERROR: Could not find a version that satisfies the requirement patronus==0.21.0
View other deleted versions of patronus

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/2025-08-12/ \ patronus==0.21.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
patronus-0.21.0-py3-none-any.whl (77.4KB)
patronus-0.21.0.tar.gz (348.0KB)