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

hyperstreamdb
0.1.11

This version was deleted from PyPI around 2026-04-12. Installing fails with:
$ pip3 install hyperstreamdb==0.1.11 ERROR: Could not find a version that satisfies the requirement hyperstreamdb==0.1.11

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/2026-04-11/ \ hyperstreamdb==0.1.11
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)