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

pyfac
1.0.0

This version was deleted from PyPI around 2025-02-19. Installing fails with:
$ pip3 install pyfac==1.0.0 ERROR: Could not find a version that satisfies the requirement pyfac==1.0.0
View other deleted versions of pyfac

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/2025-02-18/ \ pyfac==1.0.0
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Or, download files manually

And install manually via pip:
pyfac-1.0.0-py2-none-any.whl (23.3KB)
pyfac-1.0.0.tar.gz (16.8KB)