What are the best resource for learning intermediate to advanced python?

The meanings of 'Intermediate' and 'Advanced' are vague and context dependent.

The Programmer Competency Matrix has some objective criteria that are language independent. A popular HN discussion of it is here: https://news.ycombinator.com/item?id=4626695

And the matrix itself is here: http://www.starling-software.com/employment/programmer-compe...

You could try https://pythonspot.com or a Python course on https://udemy.com / https://edx.org