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 is super easy to read, but as projects get more extensive and complicated, it's more challenging to keep things clear in the code. Luckily, Python 3 came with something called kind annotations, ...

Python, as one of the most popular and important programming languages in the era of data science, has recently introduced a syntax for static type annotations with PEP 484, to improve code ...

Python - Variable Annotations This project focuses on understanding and applying variable annotations in Python. Python is a dynamically-typed language, meaning variable types are set at runtime upon ...

To add a type annotation use a colon followed by the type. To declare the output of a function, use a single line arrow function "->" In the below case, the function takes a string argument, another ...

This is clearly not what you wanted to do. Python versions 3.6 and higher provide “type annotations,” a feature that enables you to define the type of data each function argument should take.