Question

Python

Use the Design Recipe to write a function called running_average that repeatedly asks the user to input integers at the keyboard until they type the word done. Return the average of the values they entered. You may assume the user will only enter integers or "done". Include a docstring!

Answer 1

def running_average():
    """
    keep asking user for integers
    once done is entered, return average of all numbers entered
    :return: average of entered numbers
    """
    total = 0  # initialize total to 0
    count = 0  # initialize count to 0
    while True:
        n = input("Enter a number(or done to stop): ")  # ask user to enter a number
        if n == "done":  # if user enters done
            break  # then stop processing
        total += int(n)  # convert n to integer and add it to total
        count += 1  # increase count by 1
    if count == 0:  # if no numbers are entered
        return 0  # then return 0
    return total / count  # return calculated total


# Testing the function here. ignore/remove the code below if not required
average = running_average()
print("Average is", average)

Enter a number (or done to stop): Enter a number (or done to stop): Enter a number (or done to stop): Enter a number (or done to stop): Enter a number (or done to stop): Enter a number (or done to stop): done Average is 4.2 Process finished with exit code 0