"Let's start with the misconception that namespaces are about modularisation
Stephan " Well I can only for speak for Python because is where I used namespaces the most and the language I am most experienced with. Namespaces in python are merely objects that come with a collection of method speciallised in the handling of source code files , individuals and in collection with all the objects contained in them , cause everything in python apart from the core synstax are object. Last time I checked, objects even in Pharo are abour modularistation so it stands to reason that at least in Python namespaces are too. Maybe your refer to something else ?