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

cad-pyrx
2.2.18.4535

This version was deleted from PyPI around 2025-08-07. Installing fails with:
$ pip3 install cad-pyrx==2.2.18.4535 ERROR: Could not find a version that satisfies the requirement cad-pyrx==2.2.18.4535
View other deleted versions of cad-pyrx

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/2025-08-06/ \ cad-pyrx==2.2.18.4535
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Or, download files manually

And install manually via pip:
cad_pyrx-2.2.18.4535-py3-none-any.whl (70.4MB)
cad_pyrx-2.2.18.4535.tar.gz (70.1MB)