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

rok4
2.1.2

This version was deleted from PyPI around 2024-02-09. Installing fails with:
$ pip3 install rok4==2.1.2 ERROR: Could not find a version that satisfies the requirement rok4==2.1.2
View other deleted versions of rok4

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/2024-02-08/ \ rok4==2.1.2
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Or, download files manually

And install manually via pip:
rok4-2.1.2-py3-none-any.whl (48.8KB)
rok4-2.1.2.tar.gz (62.3KB)