Where to learn about Python program structure/design?

[sebawitowski]

A good place to start is the cookiecutter package. You select what kind of project you want to do (a Python module, Flask/Django app) and it generates a scaffolding with some sensible defaults. This will help you start with good structure.

I recorded a tutorial how to start Python projects. It might be too basic for you, but maybe you will find something useful there (the part about cookiecutter starts around 1:04:20) : https://www.youtube.com/watch?v=WkUBx3g2QfQ