Writing clean, testable, high quality code in Python

Although Python the language, and Python the community, are heavily influenced by desire to write clean, maintainable code that works, it is still quite easy to do the exact opposite. In this article, we will tackle this problem head on and explore how to write clean, testable, high quality code in Python.

Meta:
Cyclomatic complexity brings back memories of early 90s when I first encountered the concept and was fascinated by it. At that time we were peering into buggy modules (written in C).