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

sylanne-core
2.4.0

This version was deleted from PyPI around 2026-07-16. Installing fails with:
$ pip3 install sylanne-core==2.4.0 ERROR: Could not find a version that satisfies the requirement sylanne-core==2.4.0
View other deleted versions of sylanne-core

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/2026-07-15/ \ sylanne-core==2.4.0
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:
sylanne_core-2.4.0-py3-none-any.whl (320.9KB)
sylanne_core-2.4.0.tar.gz (20.7MB)