I've been doing a lot of Python lately and using type annotations strictly and a decent IDE like VS Code or PyCharm. If you screw up, passing a foo instead of a

I've been doing a lot of Python lately and using type annotations strictly and a decent IDE like VS Code or PyCharm. If you screw up, passing a foo instead of a bar, both almost immediately highlight the error. Don't even have to run the script to see it blow up. Huge time saver. Also doesn't hurt that it improves Intellisense/Autocomplete, gives better hints/help as you're calling a method, and improves on "self documenting" code.