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

rxnn
0.2.73

This version was deleted from PyPI around 2025-09-17. Installing fails with:
$ pip3 install rxnn==0.2.73 ERROR: Could not find a version that satisfies the requirement rxnn==0.2.73
View other deleted versions of rxnn

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/2025-09-16/ \ rxnn==0.2.73
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Or, download files manually

And install manually via pip:
rxnn-0.2.73-py3-none-any.whl (92.9KB)
rxnn-0.2.73.tar.gz (93.0KB)