[Zope] ZPT-How to sort by type and then title or id

[Jordan Carswell]

I wanted to create a listing for a folder that sorted first by the type 
of item and secondly by title. I found this example for sorting by 
title, but I can't figure out how to get it to sort by type first. Any 
guidance is appreciated...

<tal:block define="item 
python:here.getFolderContents(suppressHiddenFiles=1); dummy 
python:item.sort(lambda a,b:cmp(a.title_or_id(), b.title_or_id()))" 
tal:repeat="items item">