you can define functions using the def keyword. Here's a basic structure of a function:

def function_name(parameter1, parameter2, ...):
    # Function body
    # Code inside the function
    # ...
    # Optional: return statement

# Example
def greet(name):
    print("Hello, " + name + "!")

# Calling the function
greet("Alice")

Explanation:

• def: It is a keyword used to declare a function.
• function_name: Choose a descriptive name for your function.
• (parameter1, parameter2, ...): Define parameters that the function takes. Parameters are optional, and you can have none or multiple.
• :: Indicate the beginning of the function body.
• Function body: Code inside the function should be indented. This is a block of code that gets executed when the function is called.
• return: Use the return statement if you want your function to return a value. It's optional, and you can return multiple values if needed.

Example with a return statement:

def add_numbers(a, b):
    sum_result = a + b
    return sum_result

# Calling the function and storing the result in a variable
result = add_numbers(3, 5)
print("Sum:", result)

In this example, the add_numbers function takes two parameters (a and b), calculates their sum, and returns the result. The returned value is then printed.