[Zope] import from a product's Extensions

While debugging in pdb I want to experiment with some Python methods in my product's Extensions folder. I can import modules from my product directory, but I can't figure out how to import from my product's Extensions directory. Given a product named Prod and a file Utils.py in Extensions, none of the following work: import Prod.Extensions.Utils import Prod.Utils import Products.Prod.Extensions.Utils import Products.Prod.Utils