You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
treadtools was reported malicious
OSV:MAL-2024-11733 - Malicious code in treadtools (PyPI)

treadtools

This package was deleted from PyPI around 2024-11-28. Installing fails with:
$ pip3 install treadtools ERROR: Could not find a version that satisfies the requirement treadtools (from versions: none) ERROR: No matching distribution found for treadtools

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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/2024-11-27/ \ treadtools
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Or, download files manually

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0.0.2
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1.0.0
1.0.1