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

fastgps
0.0.4.3a0

This version was deleted from PyPI around 2025-08-13. Installing fails with:
$ pip3 install fastgps==0.0.4.3a0 ERROR: Could not find a version that satisfies the requirement fastgps==0.0.4.3a0
View other deleted versions of fastgps

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/2025-08-12/ \ fastgps==0.0.4.3a0
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:
fastgps-0.0.4.3a0-py3-none-any.whl (34.4KB)
fastgps-0.0.4.3a0.tar.gz (27.2KB)