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

moose-lib
0.4.131

This version was deleted from PyPI around 2025-08-09. Installing fails with:
$ pip3 install moose-lib==0.4.131 ERROR: Could not find a version that satisfies the requirement moose-lib==0.4.131
View other deleted versions of moose-lib

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/2025-08-08/ \ moose-lib==0.4.131
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Or, download files manually

And install manually via pip:
moose_lib-0.4.131-py3-none-any.whl (22.2KB)
moose_lib-0.4.131.tar.gz (18.8KB)