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

gpplus
0.0.1.221

This version was deleted from PyPI around 2024-09-04. Installing fails with:
$ pip3 install gpplus==0.0.1.221 ERROR: Could not find a version that satisfies the requirement gpplus==0.0.1.221
View other deleted versions of gpplus

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/2024-09-03/ \ gpplus==0.0.1.221
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:
gpplus-0.0.1.221-py3-none-any.whl (76.0KB)
gpplus-0.0.1.221.tar.gz (51.0KB)