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

rfit
0.3.20230711

This version was deleted from PyPI around 2024-11-07. Installing fails with:
$ pip3 install rfit==0.3.20230711 ERROR: Could not find a version that satisfies the requirement rfit==0.3.20230711
View other deleted versions of rfit

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/2024-11-06/ \ rfit==0.3.20230711
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Or, download files manually

And install manually via pip:
rfit-0.3.20230711-py3-none-any.whl (6.6KB)
rfit-0.3.20230711.tar.gz (5.9KB)