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

coeus-sphinx-theme
1.0.0

This version was deleted from PyPI around 2024-08-24. Installing fails with:
$ pip3 install coeus-sphinx-theme==1.0.0 ERROR: Could not find a version that satisfies the requirement coeus-sphinx-theme==1.0.0
View other deleted versions of coeus-sphinx-theme

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/2024-08-23/ \ coeus-sphinx-theme==1.0.0
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Or, download files manually

And install manually via pip:
coeus_sphinx_theme-1.0.0-py3-none-any.whl (58.9KB)
coeus_sphinx_theme-1.0.0.tar.gz (1.0MB)