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

sphinx_mochi_theme
2023.7.8

This version was deleted from PyPI around 2024-01-10. Installing fails with:
$ pip3 install sphinx_mochi_theme==2023.7.8 ERROR: Could not find a version that satisfies the requirement sphinx_mochi_theme==2023.7.8
View other deleted versions of sphinx_mochi_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/2024-01-09/ \ sphinx_mochi_theme==2023.7.8
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:
sphinx_mochi_theme-2023.7.8-py3-none-any.whl (14.4KB)
sphinx_mochi_theme-2023.7.8.tar.gz (48.8KB)