From BlenderWiki
Title: BPy Boot Camp
Author: Stephen Swaney
Abstract: BPy Boot Camp is an introduction to writing Python scripts in Blender. It is targeted at intermediate Blender users.
Intro - Introduction, Goals and Prerequisites
The Text Editor - Blender's Built-In Text Editor
Hello World - Our First Script
Objects And Their Properties - Dealing With Blender Objects
Error Handling and Exceptions - When Bad Things Happen
Scriptlinks - Automating Script Execution
The Registry - Storing and Retrieving Persistent Data
Math - A Quick Introduction to Vector Math
Blender Database Structure - More About Blender Internals
Creating Objects - How to Make New Objects
Materials - Dealing With Blender Materials
Importers-Exporters - File I/O, Creating a Simple Import/Export Script
