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

mha-toolbox
2.0.3

This version was deleted from PyPI around 2025-11-09. Installing fails with:
$ pip3 install mha-toolbox==2.0.3 ERROR: Could not find a version that satisfies the requirement mha-toolbox==2.0.3
View other deleted versions of mha-toolbox

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/2025-11-08/ \ mha-toolbox==2.0.3
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:
mha_toolbox-2.0.3-py3-none-any.whl (745.4KB)
mha_toolbox-2.0.3.tar.gz (639.1KB)