You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
nspack was reported malicious
OSV:MAL-2026-2115 - Malicious code in nspack (PyPI)

nspack
0.1.0

This version was deleted from PyPI around 2026-03-24. Installing fails with:
$ pip3 install nspack==0.1.0 ERROR: Could not find a version that satisfies the requirement nspack==0.1.0
View other deleted versions of nspack

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/2026-03-23/ \ nspack==0.1.0
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:
nspack-0.1.0-py3-none-any.whl (7.5KB)
nspack-0.1.0.tar.gz (5.8KB)