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

libgfortran5
11.2.0

This version was deleted from PyPI around 2025-11-04. Installing fails with:
$ pip3 install libgfortran5==11.2.0 ERROR: Could not find a version that satisfies the requirement libgfortran5==11.2.0
View other deleted versions of libgfortran5

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/2025-11-03/ \ libgfortran5==11.2.0
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Or, download files manually

And install manually via pip:
libgfortran5-11.2.0-py3-none-any.whl (2.5KB)
libgfortran5-11.2.0.tar.gz (2.1KB)