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

hellopyonly
0.1.15

This version was deleted from PyPI around 2024-01-13. Installing fails with:
$ pip3 install hellopyonly==0.1.15 ERROR: Could not find a version that satisfies the requirement hellopyonly==0.1.15
View other deleted versions of hellopyonly

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/2024-01-12/ \ hellopyonly==0.1.15
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Or, download files manually

And install manually via pip:
HelloPyOnly-0.1.15-py3-none-any.whl (15.8KB)
HelloPyOnly-0.1.15.tar.gz (11.1KB)