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

isobiscuit
0.1.65.6

This version was deleted from PyPI around 2025-12-04. Installing fails with:
$ pip3 install isobiscuit==0.1.65.6 ERROR: Could not find a version that satisfies the requirement isobiscuit==0.1.65.6
View other deleted versions of isobiscuit

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/2025-12-03/ \ isobiscuit==0.1.65.6
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:
isobiscuit-0.1.65.6-py3-none-any.whl (20.7KB)
isobiscuit-0.1.65.6.tar.gz (16.4KB)