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

yamc
0.2.0

This version was deleted from PyPI around 2026-01-23. Installing fails with:
$ pip3 install yamc==0.2.0 ERROR: Could not find a version that satisfies the requirement yamc==0.2.0

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/2026-01-22/ \ yamc==0.2.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)