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

helloworld20234
0.12

This version was deleted from PyPI around 2024-09-13. Installing fails with:
$ pip3 install helloworld20234==0.12 ERROR: Could not find a version that satisfies the requirement helloworld20234==0.12
View other deleted versions of helloworld20234

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/2024-09-12/ \ helloworld20234==0.12
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Or, download files manually

And install manually via pip:
helloworld20234-0.12-py3-none-any.whl (4.5KB)
helloworld20234-0.12.tar.gz (2.0KB)