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

fedml
0.7.500

This version was deleted from PyPI around 2023-10-30. Installing fails with:
$ pip3 install fedml==0.7.500 ERROR: Could not find a version that satisfies the requirement fedml==0.7.500
View other deleted versions of fedml

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/2023-10-29/ \ fedml==0.7.500
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:
fedml-0.7.500-py2.py3-none-any.whl (897.4KB)
fedml-0.7.500.tar.gz (544.6KB)