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

zoltar
15.2.3

This version was deleted from PyPI around 2023-10-04. Installing fails with:
$ pip3 install zoltar==15.2.3 ERROR: Could not find a version that satisfies the requirement zoltar==15.2.3
View other deleted versions of zoltar

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/2023-10-03/ \ zoltar==15.2.3
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:
zoltar-15.2.3.tar.gz (1.6KB)