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

pyfibermodes
0.2.26

This version was deleted from PyPI around 2023-11-20. Installing fails with:
$ pip3 install pyfibermodes==0.2.26 ERROR: Could not find a version that satisfies the requirement pyfibermodes==0.2.26
View other deleted versions of pyfibermodes

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/2023-11-19/ \ pyfibermodes==0.2.26
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Or, download files manually

And install manually via pip:
PyFiberModes-0.2.26-py3-none-any.whl (38.9KB)