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

mace-descriptor

This package was deleted from PyPI around 2025-10-24. Installing fails with:
$ pip3 install mace-descriptor ERROR: Could not find a version that satisfies the requirement mace-descriptor (from versions: none) ERROR: No matching distribution found for mace-descriptor

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/2025-10-23/ \ mace-descriptor
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Or, download files manually

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