write a Python function that keeps prompting the user for even numbers by using a loop. Enter an odd number to terminate the loop. calculate the average of all the even numbers.

2. Write a Python function that keeps prompting the user for even numbers by using a loop. Enter an odd number to terminate the loop. Calculate the average of all the even numbers. (20 pts) Test case: input: 2, 4, 6, 8, 1, display 5