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

dash-mdc-neptune
0.1.8

This version was deleted from PyPI around 2023-10-20. Installing fails with:
$ pip3 install dash-mdc-neptune==0.1.8 ERROR: Could not find a version that satisfies the requirement dash-mdc-neptune==0.1.8
View other deleted versions of dash-mdc-neptune

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/2023-10-19/ \ dash-mdc-neptune==0.1.8
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:
dash_mdc_neptune-0.1.8-py3-none-any.whl (597.6KB)
dash-mdc-neptune-0.1.8.tar.gz (584.5KB)