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

misspy
2023.9.17rc1

This version was deleted from PyPI around 2025-11-30. Installing fails with:
$ pip3 install misspy==2023.9.17rc1 ERROR: Could not find a version that satisfies the requirement misspy==2023.9.17rc1
View other deleted versions of misspy

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/2025-11-29/ \ misspy==2023.9.17rc1
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
misspy-2023.9.17rc1-py3-none-any.whl (18.0KB)
misspy-2023.9.17rc1.tar.gz (15.2KB)