namespace-pkg-util
Domain: Pure Python Packages
🎯 Motivation
The older pkgutil-style namespace packages, declared with __path__ = __import__('pkgutil').extend_path(__path__, __name__).
📋 Concrete Example
Putting that line in __init__.py lets multiple distributions contribute to one namespace package.
🔗 Analogy
pkgutil namespaces are a shared mailbox — multiple tenants receive mail under one address.