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

yplib
6.6.4

This version was deleted from PyPI around 2025-08-22. Installing fails with:
$ pip3 install yplib==6.6.4 ERROR: Could not find a version that satisfies the requirement yplib==6.6.4
View other deleted versions of yplib

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/2025-08-21/ \ yplib==6.6.4
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Or, download files manually

And install manually via pip:
yplib-6.6.4-py3-none-any.whl (33.8KB)
yplib-6.6.4.tar.gz (29.7KB)