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

zmp-zcp-toolkit

This package was deleted from PyPI around 2025-03-30. Installing fails with:
$ pip3 install zmp-zcp-toolkit ERROR: Could not find a version that satisfies the requirement zmp-zcp-toolkit (from versions: none) ERROR: No matching distribution found for zmp-zcp-toolkit

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/2025-03-29/ \ zmp-zcp-toolkit
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)