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

ath
0.0.5.6

This version was deleted from PyPI around 2024-03-03. Installing fails with:
$ pip3 install ath==0.0.5.6 ERROR: Could not find a version that satisfies the requirement ath==0.0.5.6
View other deleted versions of ath

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/2024-03-02/ \ ath==0.0.5.6
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:
ATH-0.0.5.6-py3-none-any.whl (1.6KB)
ATH-0.0.5.6.tar.gz (1.0KB)