What is type hinting in Python and how does it work?

What is type hinting in Python and how does it work?

Type hinting in Python is a way to indicate the expected data types of variables, function parameters, and return values. It helps with code readability and can assist tools like linters and IDEs in catching errors.

Are type hints mandatory in Python?

No, type hints are not mandatory in Python. They are optional and serve as a guide for developers, but Python will run without them.

How do I add type hints to a function?

You can add type hints by specifying the types after the variable names in the function definition. For example: def add(a: int, b: int) -> int:.

What are the benefits of using type hints?

Type hints improve code clarity, enable better static analysis, and can help catch type-related errors before runtime.

Can type hints be used with third-party libraries?

Yes, many third-party libraries support type hints, and you can also use type hinting with your own custom types.