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

axion
4.5.1

This version was deleted from PyPI around 2025-11-12. Installing fails with:
$ pip3 install axion==4.5.1 ERROR: Could not find a version that satisfies the requirement axion==4.5.1
View other deleted versions of axion

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/2025-11-11/ \ axion==4.5.1
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:
axion-4.5.1-cp312-abi3-macosx_10_9_universal2.whl (1.3MB)
axion-4.5.1-cp312-abi3-manylinux2014_x86_64.whl (3.2MB)
axion-4.5.1-cp312-abi3-win_amd64.whl (626.2KB)