How can I use annotations in Python functions?

How can I use annotations in Python functions?

You can use annotations in Python functions to provide hints about the types of parameters and return values. For example:

def greet(name: str) -> str:
    return f'Hello, {name}!'

What are the benefits of using annotations?

Annotations improve code readability and help with type checking, making it easier to understand the expected types.

Can I use annotations with any data type?

Yes, you can use annotations with any data type, including built-in types, custom classes, and even collections like lists and dictionaries.

Are annotations enforced at runtime?

No, annotations are not enforced at runtime; they are mainly for documentation and type hinting purposes.