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

simpleworkspace
1.2.391

This version was deleted from PyPI around 2025-05-15. Installing fails with:
$ pip3 install simpleworkspace==1.2.391 ERROR: Could not find a version that satisfies the requirement simpleworkspace==1.2.391
View other deleted versions of simpleworkspace

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/2025-05-14/ \ simpleworkspace==1.2.391
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Or, download files manually

And install manually via pip:
simpleworkspace-1.2.391-py3-none-any.whl (446.4KB)
simpleworkspace-1.2.391.tar.gz (424.2KB)