How do I define a function?

In Python, you can define a function using the def keyword followed by the function name and parentheses. Here's a simple example:

def my_function():
    print("Hello, World!")

To call the function, simply use its name followed by parentheses:

my_function()  # This will output: Hello, World!

If you want to pass parameters to the function, you can do it like this:

def greet(name):
    print(f"Hello, {name}!")

greet("Alice")  # This will output: Hello, Alice!

Feel free to ask if you have more questions about functions or any other Python topics!