<p>While your program may work functionally, it may still be hard to maintain if the style of it is messy. So it would be nice to automated code style. A favourable tool for that the <a href="https://flake8.pycqa.org/en/latest/">flake8</a> ecosystem.</p>

1 - Introduction
2 - Usage
3 - Ignore
4 - Config
5 - Linewidth Complexity
6 - Extensions
7 - Goal

This would be a great time to install flake8.

# from a virtualenv 
python -m pip install flake8