I'm sure you know this already but you might want to check out: - https://docs.python.org/3/library/typing.html https://docs.python.org/3/library/typing.html

I'm sure you know this already but you might want to check out: - https://docs.python.org/3/library/typing.html https://docs.python.org/3/library/typing.html - http://mypy-lang.org http://mypy-lang.org Also flake8 has also helped -- it's just a linter but using it in conjunction with the typing module and running that in a watch loop in another terminal window has done wonders for me.