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

planc
0.0.1.dev20251209110701

This version was deleted from PyPI around 2025-12-30. Installing fails with:
$ pip3 install planc==0.0.1.dev20251209110701 ERROR: Could not find a version that satisfies the requirement planc==0.0.1.dev20251209110701
View other deleted versions of planc

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/2025-12-29/ \ planc==0.0.1.dev20251209110701
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Or, download files manually

And install manually via pip:
planc-0.0.1.dev20251209110701-py3-none-any.whl (1.7KB)
planc-0.0.1.dev20251209110701.tar.gz (0.6KB)