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

vastdb
0.0.5.3

This version was deleted from PyPI around 2024-08-13. Installing fails with:
$ pip3 install vastdb==0.0.5.3 ERROR: Could not find a version that satisfies the requirement vastdb==0.0.5.3

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/2024-08-12/ \ vastdb==0.0.5.3
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Or, download files manually

And install manually via pip: