[Zope] Guide to writing a Python Product for Zope?

"Dan L. Pierson" wrote:

Sounds pretty good. Setting 'default_content_type' can then be another item in the unwritten Guide to Writing a Zope Product.

Well, hopefully this will actually get written sometime and we can all stop scratching our heads everytime we want to know how to do something. ...that, or hacking it till it works and finding the thing we used was being deprecated in the next point release... ;-) cheers, Chris