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

kevlar-system-inspector
1.1.0a1

This version was deleted from PyPI around 2023-11-15. Installing fails with:
$ pip3 install kevlar-system-inspector==1.1.0a1 ERROR: Could not find a version that satisfies the requirement kevlar-system-inspector==1.1.0a1
View other deleted versions of kevlar-system-inspector

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/2023-11-14/ \ kevlar-system-inspector==1.1.0a1
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:
kevlar_system_inspector-1.1.0a1-py3-none-any.whl (47.9KB)
kevlar-system-inspector-1.1.0a1.tar.gz (38.2KB)