What are advanced type hints in Python?

What are advanced type hints in Python?

Advanced type hints in Python enhance type checking and improve code readability. They include features like Union, Optional, and TypeVar.

Can you give me an example of using Union and Optional?

Sure! You can use Union to specify that a variable can be one of several types, like def func(x: Union[int, str]). Optional is used to indicate that a value can be of a specific type or None, like def func(x: Optional[int]).

What is TypeVar and how is it used?

TypeVar allows you to create generic types. For example, T = TypeVar('T') lets you define a function that can accept any type, like def func(x: T) -> T.

Are there any tools to check type hints in my code?

Yes, tools like mypy and Pyright can help you check type hints and ensure type safety in your Python code.