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

chern-machine
1.0.0

This version was deleted from PyPI around 2025-12-07. Installing fails with:
$ pip3 install chern-machine==1.0.0 ERROR: Could not find a version that satisfies the requirement chern-machine==1.0.0
View other deleted versions of chern-machine

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/2025-12-06/ \ chern-machine==1.0.0
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:
Chern Machine-1.0.0.tar.gz (8.3KB)
Chern_Machine-1.0.0-py3.6.egg (30.7KB)