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

happyfeat
0.1.0

This version was deleted from PyPI around 2023-11-08. Installing fails with:
$ pip3 install happyfeat==0.1.0 ERROR: Could not find a version that satisfies the requirement happyfeat==0.1.0
View other deleted versions of happyfeat

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/2023-11-07/ \ happyfeat==0.1.0
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Or, download files manually

And install manually via pip:
happyfeat-0.1.0-py3-none-any.whl (226.8KB)
happyfeat-0.1.0.tar.gz (1.7MB)