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

jacksung
0.0.3.30

This version was deleted from PyPI around 2025-12-01. Installing fails with:
$ pip3 install jacksung==0.0.3.30 ERROR: Could not find a version that satisfies the requirement jacksung==0.0.3.30
View other deleted versions of jacksung

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/2025-11-30/ \ jacksung==0.0.3.30
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Or, download files manually

And install manually via pip:
jacksung-0.0.3.30-py3-none-any.whl (696.1KB)
jacksung-0.0.3.30.tar.gz (687.2KB)