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

nt25
0.1.6

This version was deleted from PyPI around 2025-09-11. Installing fails with:
$ pip3 install nt25==0.1.6 ERROR: Could not find a version that satisfies the requirement nt25==0.1.6
View other deleted versions of nt25

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/2025-09-10/ \ nt25==0.1.6
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:
nt25-0.1.6-py3-none-any.whl (357.7KB)
nt25-0.1.6.tar.gz (358.0KB)