You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
pipmodule823 was reported malicious
OSV:MAL-2025-6564 - Malicious code in pipmodule823 (PyPI)

pipmodule823
1.0.2

This version was deleted from PyPI around 2025-07-08. Installing fails with:
$ pip3 install pipmodule823==1.0.2 ERROR: Could not find a version that satisfies the requirement pipmodule823==1.0.2

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/2025-07-07/ \ pipmodule823==1.0.2
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Or, download files manually

And install manually via pip: