You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
donotinstallthisistest5 was reported malicious
OSV:MAL-2025-41664 - Malicious code in donotinstallthisistest5 (PyPI)

donotinstallthisistest5
0.1.0

This version was deleted from PyPI around 2025-07-23. Installing fails with:
$ pip3 install donotinstallthisistest5==0.1.0 ERROR: Could not find a version that satisfies the requirement donotinstallthisistest5==0.1.0

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/2025-07-22/ \ donotinstallthisistest5==0.1.0
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Or, download files manually

And install manually via pip: