Python for Blender tutorials

There are a lot of tutorials out there on the topic of Python for Blender, but this series is working particularly well for me. 

I found this set through BlenderNation.

Raghav Venkat of the cordata Youtube channel has created the series as a playlist.

Python for Blender: Artist Friendly Programming Guide for Addon Development

https://www.youtube.com/playlist?list=PLmGhGFnN_vMITtIKBKjPJ1h5C5i-iabqO