pymultiobjective
1.5.4
This version was deleted from PyPI around 2025-02-05. Installing fails with:
$ pip3 install pymultiobjective==1.5.4
ERROR: Could not find a version that satisfies the requirement pymultiobjective==1.5.4

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/2025-02-04/ \
pymultiobjective==1.5.4
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)