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

xplan-gui
0.1.0

This version was deleted from PyPI around 2025-10-09. Installing fails with:
$ pip3 install xplan-gui==0.1.0 ERROR: Could not find a version that satisfies the requirement xplan-gui==0.1.0
View other deleted versions of xplan-gui

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/2025-10-08/ \ xplan-gui==0.1.0
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Or, download files manually

And install manually via pip:
xplan_gui-0.1.0-py3-none-any.whl (44.8KB)
xplan_gui-0.1.0.tar.gz (43.5KB)