Four years ago I talked about code quality during EuroPython in Bilbao. A lot of things changed from that time. Firstly, most tools I presented were still developed and gained new features, but also new ones appeared I wanted to discuss with you. Secondly, Python changed, Python 3 has type hints on board and there is a new tool dedicated to checking the types. Thirdly - I changed. I'm more distanced form my zealous approach from four years ago. I got real and reasonable. That's why I wanted to talk about code quality tools in Python again. I'll talk about all the software that can make code review a bit simpler by pointing out possible errors, duplicates or unused code. I'll talk again about formatters and how can they be used in modern-time projects. And I'll talk about hobgoblins, if you know what I mean :)