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

L0-Smoothing
0.1.2

This version was deleted from PyPI around 2023-10-15. Installing fails with:
$ pip3 install L0-Smoothing==0.1.2 ERROR: Could not find a version that satisfies the requirement L0-Smoothing==0.1.2
View other deleted versions of L0-Smoothing

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/2023-10-14/ \ L0-Smoothing==0.1.2
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:
L0_Smoothing-0.1.2-py3-none-any.whl (16.8KB)
L0-Smoothing-0.1.2.tar.gz (11.0KB)