miniblog.

Playing with optional type signatures in Python, I realise that the return type is the most important to me. I'd much rather have a function with only a return type instead of a function with only parameter types. It's often quick to add too.

Really cute approach to reporting type errors: when there's a type error, show an example of a runtime error that the type check has prevented! Data-Driven Techniques for Type Error Diagnosis https://escholarship.org/uc/item/59s4h4pv

Trying the nix CLI today, and I'm seriously impressed with the formatting of its --help output. Indented warnings, italics, bullets, even adding a left border to code snippets! It's a nice reminder to take full advantage of terminal features to help the reader.