Linters should catch most typos; failing that, Python's type hints are a pain to use, but you can address a lot of low-hanging fruit for free. I think for your

Linters should catch most typos; failing that, Python's type hints are a pain to use, but you can address a lot of low-hanging fruit for free. I think for your use case though, Go would be perfect. Everything is statically compiled, so you don't need to mess with virtualenvs, and everything is statically typed ahead of time. I'm a professional Python developer, but I often do my prototyping in Go because the type system is more ergonomic than Python/mypy.