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

python-mongoclass
0.1.2

This version was deleted from PyPI around 2023-09-22. Installing fails with:
$ pip3 install python-mongoclass==0.1.2 ERROR: Could not find a version that satisfies the requirement python-mongoclass==0.1.2
View other deleted versions of python-mongoclass

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/2023-09-21/ \ python-mongoclass==0.1.2
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:
python_mongoclass-0.1.2-py3-none-any.whl (9.3KB)