What are the best practices for using annotations in Python?

What are the best practices for using annotations in Python?

Best practices for Python annotations include using them for type hints, keeping them clear and concise, and using standard types.

Can you give me an example of how to use type hints in a function?

Sure! Here's an example:

def add_numbers(a: int, b: int) -> int: return a + b

This function uses type hints to specify that both parameters are integers and the return type is also an integer.

Are there any tools to help with type checking in Python?

Yes, tools like mypy and Pyright can help with static type checking in Python, ensuring your annotations are correct.

What should I avoid when using annotations?

Avoid overcomplicating annotations, using them inconsistently, or annotating every single variable, as it can reduce readability.