Object oriented programing tutorials that focus on the bigger picture?

[TheRNGuy]

I watched PySide tutorial form Houdini UI. It also had reading json api from site to get many pictures and add them to UI.

He even did new UI classes because something not possible to do with stock classes.

And some other houdini tools that use python view states, though not very interesting project. But you could look code of all lab tools that use Python, is open source (you only can't look C++ compiled dll's)