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

yatter
1.1.0

This version was deleted from PyPI around 2024-01-11. Installing fails with:
$ pip3 install yatter==1.1.0 ERROR: Could not find a version that satisfies the requirement yatter==1.1.0
View other deleted versions of yatter

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/2024-01-10/ \ yatter==1.1.0
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:
yatter-1.1.0-py3-none-any.whl (20.7KB)
yatter-1.1.0.tar.gz (18.6KB)