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

xapu
0.0.1

This version was deleted from PyPI around 2023-11-22. Installing fails with:
$ pip3 install xapu==0.0.1 ERROR: Could not find a version that satisfies the requirement xapu==0.0.1
View other deleted versions of xapu

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/2023-11-21/ \ xapu==0.0.1
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Or, download files manually

And install manually via pip:
xapu-0.0.1-cp312-cp312-win_amd64.whl (101.6KB)
xapu-0.0.1.tar.gz (2.3KB)