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

polytex
0.3.15

This version was deleted from PyPI around 2024-03-07. Installing fails with:
$ pip3 install polytex==0.3.15 ERROR: Could not find a version that satisfies the requirement polytex==0.3.15
View other deleted versions of polytex

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/2024-03-06/ \ polytex==0.3.15
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:
polytex-0.3.15-py3-none-any.whl (121.2KB)
polytex-0.3.15.tar.gz (110.9KB)