What are some examples of typing in Python?

What are some examples of typing in Python?

In Python, typing can be demonstrated using type hints. For example, you can define a function like this:

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

Can you explain what type hints are?

Type hints are a way to indicate the expected data types of function arguments and return values. They help with code readability and can assist tools in catching type errors.

Are there any built-in types I should know about?

Yes, some common built-in types in Python include int, float, str, bool, list, dict, and tuple. You can use these in your type hints.

How do I use typing with lists?

You can specify the type of elements in a list using the List type from the typing module. For example:

from typing import List

def process_numbers(numbers: List[int]) -> None:
    for number in numbers:
        print(number)