You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
mb-commons was reported malicious
OSV:MAL-2025-6546 - Malicious code in mb-commons (PyPI)

mb-commons

This package was deleted from PyPI around 2024-07-16. Installing fails with:
$ pip3 install mb-commons ERROR: Could not find a version that satisfies the requirement mb-commons (from versions: none) ERROR: No matching distribution found for mb-commons

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/2024-07-15/ \ mb-commons
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Or, download files manually

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0.0.1
0.1.0
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8