What are common type annotations in Python?

What are common type annotations in Python?

Common type annotations in Python include int, float, str, bool, List, Dict, and Tuple. They help specify data types.

Can you give me examples of how to use these annotations?

Sure! For example, you can annotate a function like this: def add(a: int, b: int) -> int:. This indicates that both parameters are integers and the return type is also an integer.

What about using type annotations with lists and dictionaries?

For lists, you can use List[int] to indicate a list of integers. For dictionaries, Dict[str, int] indicates a dictionary with string keys and integer values.

Are there any benefits to using type annotations?

Yes, type annotations improve code readability, help with static type checking, and can catch errors early in development.