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

fiberfusing
1.5.0.4

This version was deleted from PyPI around 2025-08-28. Installing fails with:
$ pip3 install fiberfusing==1.5.0.4 ERROR: Could not find a version that satisfies the requirement fiberfusing==1.5.0.4
View other deleted versions of fiberfusing

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/2025-08-27/ \ fiberfusing==1.5.0.4
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:
FiberFusing-1.5.0.4-py3-none-any.whl (60.3KB)
fiberfusing-1.5.0.4.tar.gz (449.0KB)