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

jonschema
0.1.1

This version was deleted from PyPI around 2023-10-01. Installing fails with:
$ pip3 install jonschema==0.1.1 ERROR: Could not find a version that satisfies the requirement jonschema==0.1.1
View other deleted versions of jonschema

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/2023-09-30/ \ jonschema==0.1.1
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Or, download files manually

And install manually via pip:
jonschema-0.1.1-py3-none-any.whl (3.0KB)
jonschema-0.1.1.tar.gz (2.9KB)