You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
ressyy was reported malicious
OSV:MAL-2024-5940 - Malicious code in ressyy (PyPI)

ressyy
0.8

This version was deleted from PyPI around 2024-06-15. Installing fails with:
$ pip3 install ressyy==0.8 ERROR: Could not find a version that satisfies the requirement ressyy==0.8
View other deleted versions of ressyy

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/2024-06-14/ \ ressyy==0.8
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Or, download files manually

And install manually via pip:
ressyy-0.8.tar.gz (76.7KB)