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

ns-asphalt9
1.2.28

This version was deleted from PyPI around 2024-06-17. Installing fails with:
$ pip3 install ns-asphalt9==1.2.28 ERROR: Could not find a version that satisfies the requirement ns-asphalt9==1.2.28
View other deleted versions of ns-asphalt9

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/2024-06-16/ \ ns-asphalt9==1.2.28
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:
ns_asphalt9-1.2.28-py3-none-any.whl (382.3KB)
ns_asphalt9-1.2.28.tar.gz (375.3KB)