discover contents of a namespace package

[Brecht Machiels]

Hello,

I'm trying to use namespace packages (as described by PEP 420) to manage optional components of my Python package.

I would like to discover which optional components are installed. Unfortunately, I have not found a straightforward way to do this. For regular packages, pkgutil.walk_packages() does this, but this doesn't work for namespace packages. Is there a way to discover the installed contents of a namespace package without manually reading the filesystem?

Is there a way to do this using namespace packages created using pkgutil or pkg_resources?

Thanks
-- 
Brecht Machiels