Seconded. `Effective Python` is a fantastic resource detailing a lot of the ways Python differs from other languages and how to write to the language's strengths.

I'm no hot shit, but it definitely moved me from 'middling hobbyist' to 'semi-capable dev'.

Becoming a "semi-capable dev" is exactly what I'm trying to aim for. I started learning Python at a relatively young age and I picked up a set of bad habits. I ended up becoming a Mechanical Engineer so I never had the time or opportunity to code more to become more proficient and write better code. I'm currently taking the self-driving car course through Udacity. I'm hoping this would be a good opportunity to correct my bad habits and become a better coder.