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.

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 ...

Functions that work with objects that can be represented in pure C, such as basic numerical types, arrays, or structures, rather than Python object types like lists, dictionaries, or tuples.