If the Ruby tutorial is any indication, Michael's book will be the best when it comes out. Never gone through any Python tutorials but I've heard good things about: http://www.djangobook.com/en/2.0/index.html, and https://www.twoscoopspress.com/. Take the recommendation with a pinch of salt because I've never done them myself.
Given that Michael's book is 90% about using Rails, I understood the asker's question to be related to using the framework more so than the language itself.
I'm better known nowadays as a Rubyist, but in fact Python was the first language I really loved, and I have over 100K lines of Python under my belt from my Ph.D. research and my first startup. Our planned intro sequence includes Learn Enough™ Ruby to Be Dangerous, but I'm hoping to design it so that I can quickly make a Python version as well.
Among my peers people usually come from a lower level language to either Python or Ruby but rarely switch from one to the other. What made you switch from Python to Ruby?
Also your book set me on my way with Ruby and Rails. I recommend it at least once a week. Thanks for everything.
I don't know one in a similar style, but if you're looking to learn Python as a first programming language I highly recommend https://www.udacity.com/courses/cs101
As far as I remember it it had good pacing and by the end of it I could write useful code (albeit initially brutishly ugly code that I will deny ever having written lol).
