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

mixtrain
0.1.10a5

This version was deleted from PyPI around 2025-12-12. Installing fails with:
$ pip3 install mixtrain==0.1.10a5 ERROR: Could not find a version that satisfies the requirement mixtrain==0.1.10a5
View other deleted versions of mixtrain

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/2025-12-11/ \ mixtrain==0.1.10a5
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:
mixtrain-0.1.10a5-py3-none-any.whl (57.5KB)
mixtrain-0.1.10a5.tar.gz (216.4KB)