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

ncmcm
2.1

This version was deleted from PyPI around 2024-02-15. Installing fails with:
$ pip3 install ncmcm==2.1 ERROR: Could not find a version that satisfies the requirement ncmcm==2.1
View other deleted versions of ncmcm

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/2024-02-14/ \ ncmcm==2.1
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:
NCMCM-2.1-py3-none-any.whl (26.3KB)
NCMCM-2.1.tar.gz (27.5KB)