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

plutus-terminal-sandbox
0.1.0b6

This version was deleted from PyPI around 2024-10-05. Installing fails with:
$ pip3 install plutus-terminal-sandbox==0.1.0b6 ERROR: Could not find a version that satisfies the requirement plutus-terminal-sandbox==0.1.0b6

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/2024-10-04/ \ plutus-terminal-sandbox==0.1.0b6
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Or, download files manually

And install manually via pip: