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

altergo
0.43.1

This version was deleted from PyPI around 2026-04-28. Installing fails with:
$ pip3 install altergo==0.43.1 ERROR: Could not find a version that satisfies the requirement altergo==0.43.1
View other deleted versions of altergo

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/2026-04-27/ \ altergo==0.43.1
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:
altergo-0.43.1-py3-none-any.whl (97.4KB)
altergo-0.43.1.tar.gz (139.1KB)