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

bandgap-ml
1.0

This version was deleted from PyPI around 2025-03-18. Installing fails with:
$ pip3 install bandgap-ml==1.0 ERROR: Could not find a version that satisfies the requirement bandgap-ml==1.0
View other deleted versions of bandgap-ml

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/2025-03-17/ \ bandgap-ml==1.0
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Or, download files manually

And install manually via pip:
bandgap_ml-1.0-py3-none-any.whl (13.4MB)
bandgap_ml-1.0.tar.gz (13.1MB)