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

netbox-slm
1.5

This version was deleted from PyPI around 2023-10-11. Installing fails with:
$ pip3 install netbox-slm==1.5 ERROR: Could not find a version that satisfies the requirement netbox-slm==1.5
View other deleted versions of netbox-slm

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/2023-10-10/ \ netbox-slm==1.5
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:
netbox_slm-1.5-py3-none-any.whl (25.8KB)
netbox-slm-1.5.tar.gz (18.8KB)