[Zope-dev] __init__.py

Hi, In the process of re-engineering Squishdot to use Catalogs I bumped into __init__.py and wondered if this was out of date as well. I can't tell though 'cos I can't find any documentation on __init__.py, old or new, to work from. Is there any? Also, is there something like a How-To for creating python products (in particular; what should go into __init__.py and what should go into ProductName.py?) using the latest, future proofed, methods? cheers for any help, Chris