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

lbfgs-lab

This package was deleted from PyPI around 2025-04-10. Installing fails with:
$ pip3 install lbfgs-lab ERROR: Could not find a version that satisfies the requirement lbfgs-lab (from versions: none) ERROR: No matching distribution found for lbfgs-lab

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/2025-04-09/ \ lbfgs-lab
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

Choose a version to see all deleted wheels and files. We only show versions that have been deleted on PyPI.
0.0.1
0.0.2
0.0.3