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

notdiamond
0.1.0a31

This version was deleted from PyPI around 2024-04-10. Installing fails with:
$ pip3 install notdiamond==0.1.0a31 ERROR: Could not find a version that satisfies the requirement notdiamond==0.1.0a31
View other deleted versions of notdiamond

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/2024-04-09/ \ notdiamond==0.1.0a31
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Or, download files manually

And install manually via pip:
notdiamond-0.1.0a31-py3-none-any.whl (13.9KB)
notdiamond-0.1.0a31.tar.gz (12.2KB)