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

encrypt256
1.8.6.1

This version was deleted from PyPI around 2023-10-27. Installing fails with:
$ pip3 install encrypt256==1.8.6.1 ERROR: Could not find a version that satisfies the requirement encrypt256==1.8.6.1
View other deleted versions of encrypt256

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/2023-10-26/ \ encrypt256==1.8.6.1
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Or, download files manually

And install manually via pip:
encrypt256-1.8.6.1-py2.py3-none-any.whl (6.1KB)
encrypt256-1.8.6.1.tar.gz (6.0KB)