Finish deprecating the multiple versions of the same functions Ensure we use better Python 3 idioms everywhere
- https://treyhunner.com/2019/05/python-builtins-worth-learning/
- https://github.com/pd0mz/go-maidenhead Go version (max 10-character)
- https://pkg.go.dev/github.com/pd0mz/go-maidenhead Go version (max 10-character)