What is the usage of typing in Python?

What is the usage of typing in Python?

The typing module in Python provides support for type hints, allowing you to specify the expected data types of variables, function parameters, and return values.

Can you give me an example of how to use it?

Sure! Here's a simple example:

from typing import List

def greet_all(names: List[str]) -> None:
    for name in names:
        print(f'Hello, {name}!')

What are the benefits of using type hints?

Type hints improve code readability, help with static type checking, and can assist IDEs in providing better autocompletion and error detection.

Is typing mandatory in Python?

No, typing is not mandatory in Python. It's optional and primarily used for better code clarity and maintenance.