Python 3 introduced the idea of "type annotations," and as of Python 3.6, you can annotate variables, not just function parameters and return values. The idea is that you can put a colon (:) and then ...

Learn how to use Python’s optional type-hinting syntax to create cleaner and more useful code.

Mypy, Pytype, Pyright, and Pyre can help you keep your type-hinted Python code bug-free. Let’s see what each of these useful tools has to offer.

Positron is Posit's new, free IDE for data science. Users can work with Python and R. It explicitly does not replace RStudio.