Web Component Development with Zope 3 (Third Edition)
Zope is a powerful Python web application platform for developing complex web applications rapidly and collaboratively. With version 3, Zope has been rebuilt on top of a Component Architecture that combines the best ideas available from modern web platforms.
This book focuses on Zope 3, though it also addresses the needs of Zope 2 developers who want to use Zope 3 features as they are backported into the Zope 2 platform. First, the key concepts of Zope and its Component Architecture are introduced. Each of Zope's capabilities is demonstrated by building a sample application and then extending it with more features.
Plone uses Zope 3 technologies from Plone 2.5 onwards, and if you're a developer that writes Python, but don't know Zope — this is the book to get.
Make sure you get the second edition, as the book has significant updates.