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

pydecision
4.7.3

This version was deleted from PyPI around 2025-06-11. Installing fails with:
$ pip3 install pydecision==4.7.3 ERROR: Could not find a version that satisfies the requirement pydecision==4.7.3
View other deleted versions of pydecision

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/2025-06-10/ \ pydecision==4.7.3
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Or, download files manually

And install manually via pip:
pydecision-4.7.3-py3-none-any.whl (118.2KB)
pydecision-4.7.3.tar.gz (67.2KB)