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First off, let’s start with the basics. A function is essentially a block of code that performs a specific task or operation. It can take input parameters (arguments) and return an output value. Sounds simple enough, right? Well, not exactly…

Let’s say you want to write a function that calculates the area of a rectangle given its length and width. Here’s how it might look:

# This function takes in two arguments (length and width) and returns their product.
def calculate_rectangle_area(length, width):
    # The function is named "calculate_rectangle_area" and takes in two parameters, "length" and "width".
    # The function calculates the area of a rectangle by multiplying the length and width.
    return length * width  # The result of the calculation is returned as the output of the function.

Now, let’s break this down for you newbies out there. First off, we have the `def` keyword which tells Python that we are defining a new function called “calculate_rectangle_area.” Next up, we have our argument list (length and width) enclosed in parentheses. These arguments will be passed into the function when it’s called later on.

The next line is where things get interesting. We use three double quotes to create a docstring for this function. A docstring is essentially a comment that provides information about what the function does and how to use it. In our case, we explain that this function takes in two arguments (length and width) and returns their product.

Finally, we have the `return` keyword which tells Python to return the result of the calculation. In this case, we’re multiplying length by width using the asterisk (*) operator.

A simple function that calculates the area of a rectangle. But wait…did you notice something funny about our docstring?

In fact, let’s take this one step further. Let’s say we want to write a function that calculates the perimeter of a rectangle given its length and width. “”” We explained that the function calculates the perimeter of a rectangle, but instead of saying “sum” or “addition,” we used the word “summed” and “multiplied by 2.” This not only adds personality to your code, but it also makes it more memorable for others who might be reading it.

Remember , coding doesn’t have to be boring or dry…it can be fun and entertaining too!