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

test-marvin
0.0.11

This version was deleted from PyPI around 2023-12-05. Installing fails with:
$ pip3 install test-marvin==0.0.11 ERROR: Could not find a version that satisfies the requirement test-marvin==0.0.11
View other deleted versions of test-marvin

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/2023-12-04/ \ test-marvin==0.0.11
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Or, download files manually

And install manually via pip:
test_marvin-0.0.11-py3-none-any.whl (1.3KB)
test-marvin-0.0.11.tar.gz (1.2KB)