How to Create and Use Functions in Python3

In Python3, functions are defined using the def keyword followed by a function name and parentheses enclosing any parameters. The function body starts with a colon and is indented. Functions encapsulate reusable blocks of code, making programs more modular and maintainable. They can return values using the return statement, and if no return is specified, they return None by default.

The Python script features a function named add_numbers that takes two numbers as input and returns their sum. This demonstrates a basic example of creating and using functions for arithmetic operations.

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