Comment by Buttons840

    # Instead of doing this
    if len(numbers) == 0:
        print("The numbers list is empty")

    # Many of us do this
    if not numbers:
        print("The numbers list is empty")

I tend to write the first form because it is how I think, and I'm writing what I think. "If this list is empty, then..." I suppose a list is only falsy if it is empty. I used to exploit Python's truthyness / falsyness a lot more, but now I like to be more explicit. Ultimately it doesn't matter much, making a single line a tiny bit longer is rarely the most important issue in a project.