You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
shleeh was reported malicious
OSV:MAL-2025-2996 - Malicious code in shleeh (PyPI)

shleeh
0.0.1.dev1

This version was deleted from PyPI around 2024-05-04. Installing fails with:
$ pip3 install shleeh==0.0.1.dev1 ERROR: Could not find a version that satisfies the requirement shleeh==0.0.1.dev1
View other deleted versions of shleeh

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/2024-05-03/ \ shleeh==0.0.1.dev1
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Or, download files manually

And install manually via pip:
shleeh-0.0.1.dev1-py3-none-any.whl (2.1KB)