Guido van Rossum, best known as designer of the Python programming language, recently sent out a proposal on the python-ideas mailing list for adding type annotations to Python function declarations.

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 ...

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.

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

A new open source VS Code extension called pyright has been created as a Microsoft 'side project' to improve on current offerings for static type checking for the Python programming language.

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