You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
cittronn was reported malicious
OSV:MAL-2024-12236 - Malicious code in cittronn (PyPI)

cittronn
3

This version was deleted from PyPI around 2026-01-15. Installing fails with:
$ pip3 install cittronn==3 ERROR: Could not find a version that satisfies the requirement cittronn==3
View other deleted versions of cittronn

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/2026-01-14/ \ cittronn==3
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Or, download files manually

And install manually via pip:
cittronn-3-py2-none-any.whl (1.1KB)
cittronn-3.tar.gz (1.0KB)