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

mdatagen
0.0.86

This version was deleted from PyPI around 2024-01-11. Installing fails with:
$ pip3 install mdatagen==0.0.86 ERROR: Could not find a version that satisfies the requirement mdatagen==0.0.86
View other deleted versions of mdatagen

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/2024-01-10/ \ mdatagen==0.0.86
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Or, download files manually

And install manually via pip:
mdatagen-0.0.86-py3-none-any.whl (20.1KB)
mdatagen-0.0.86.tar.gz (13.8KB)