Namespaces are pervasive in Python. Virtually everything you deal with is a namespace: package, modules, classes, instances; even functions are namespaces:

Namespaces are pervasive in Python. Virtually everything you deal with is a namespace: package, modules, classes, instances; even functions are namespaces: >>> def func(ns): ... print(ns.stuff) ... >>> func.stuff = 'honking great' >>> func(func) honking great