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

zenx
0.42.1a21

This version was deleted from PyPI around 2025-11-01. Installing fails with:
$ pip3 install zenx==0.42.1a21 ERROR: Could not find a version that satisfies the requirement zenx==0.42.1a21
View other deleted versions of zenx

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/2025-10-31/ \ zenx==0.42.1a21
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:
zenx-0.42.1a21-py3-none-any.whl (39.8KB)
zenx-0.42.1a21.tar.gz (28.2KB)