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

kry
2025.5.21.post1

This version was deleted from PyPI around 2025-07-06. Installing fails with:
$ pip3 install kry==2025.5.21.post1 ERROR: Could not find a version that satisfies the requirement kry==2025.5.21.post1
View other deleted versions of kry

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/2025-07-05/ \ kry==2025.5.21.post1
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
kry-2025.5.21.post1-py3-none-any.whl (1.9KB)
kry-2025.5.21.post1.tar.gz (1.6KB)