How do I type-annotate Python code effectively?

Type annotations in Python provide a way to statically type-check your code which can help improve code quality and readability. By using type annotations, you can specify the expected data types of variables, function parameters, and return values.

Here's a simple example of type annotation in a Python function:

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

Python type annotations code quality readability static type-checking

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