nbextension
Domain: Jupyter Integration
🎯 Motivation
A classic notebook extension (for the old notebook interface, not JupyterLab). Loaded via jupyter nbextension install/enable.
📋 Concrete Example
Run jupyter nbextension enable --py mypkg to activate a classic notebook extension bundled in your package.
🔗 Analogy
An nbextension is a vintage car accessory — it fits the classic notebook model, not the new lab.