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

ka-app-cfg
4.0.3.250520

This version was deleted from PyPI around 2025-07-31. Installing fails with:
$ pip3 install ka-app-cfg==4.0.3.250520 ERROR: Could not find a version that satisfies the requirement ka-app-cfg==4.0.3.250520
View other deleted versions of ka-app-cfg

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/2025-07-30/ \ ka-app-cfg==4.0.3.250520
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:
ka_app_cfg-4.0.3.250520-py3-none-any.whl (8.6KB)
ka_app_cfg-4.0.3.250520.tar.gz (29.6KB)