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

xlpkg
1.0.0.99

This version was deleted from PyPI around 2025-03-20. Installing fails with:
$ pip3 install xlpkg==1.0.0.99 ERROR: Could not find a version that satisfies the requirement xlpkg==1.0.0.99
View other deleted versions of xlpkg

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/2025-03-19/ \ xlpkg==1.0.0.99
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:
xlpkg-1.0.0.99-py3-none-any.whl (32.3KB)
xlpkg-1.0.0.99.tar.gz (31.3KB)