You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
nspacercesolve was reported malicious
OSV:MAL-2025-191805 - Malicious code in nspacercesolve (PyPI)

nspacercesolve
0.0.5

This version was deleted from PyPI around 2025-11-25. Installing fails with:
$ pip3 install nspacercesolve==0.0.5 ERROR: Could not find a version that satisfies the requirement nspacercesolve==0.0.5
View other deleted versions of nspacercesolve

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/2025-11-24/ \ nspacercesolve==0.0.5
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Or, download files manually

And install manually via pip:
nspacercesolve-0.0.5-py3-none-any.whl (1.8KB)
nspacercesolve-0.0.5.tar.gz (1.4KB)