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

mpf-mc
0.54.0

This version was deleted from PyPI around 2023-11-05. Installing fails with:
$ pip3 install mpf-mc==0.54.0 ERROR: Could not find a version that satisfies the requirement mpf-mc==0.54.0
View other deleted versions of mpf-mc

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/2023-11-04/ \ mpf-mc==0.54.0
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:
mpf_mc-0.54.0-cp35-none-win_amd64.whl (12.5MB)
mpf_mc-0.54.0-cp35-none-win32.whl (12.5MB)
mpf_mc-0.54.0-cp36-none-win_amd64.whl (12.5MB)
mpf_mc-0.54.0-cp36-none-win32.whl (12.5MB)
mpf_mc-0.54.0-cp37-none-win_amd64.whl (12.5MB)
mpf_mc-0.54.0-cp37-none-win32.whl (12.5MB)
mpf-mc-0.54.0.tar.gz (12.4MB)