Starting out with Python 3E Chapter 6. PC #5 and #6 Combine

Chapter 6. PC #5 and #6 Combined and modified. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. Assume that the file contains a series of integers, one on each line. The program should read all the numbers from the given file, calculate their total and average, and then display the total and average of all numbers in the following format (three decimal digits):

Test Case 1

Standard Input	Files in the same directory
input1.txt	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: Total: 11.800 Average: 2.950 

Test Case 2

Standard Input	Files in the same directory
input2.txt	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: Total: 17.300 Average: 3.460 

Test Case 3

Standard Input	Files in the same directory
input3.txt	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: Total: 1.124 Average: 1.124 

Test Case 4

Standard Input	Files in the same directory
input4.txt	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: File input4.txt is empty. 

Test Case 5

Standard Input	Files in the same directory
input5.txtENTER input1.txt	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: File: input5.txt does not exist. Please enter the file name again or type QUIT to exit: Total: 11.800 Average: 2.950 

Test Case 6

Standard Input	Files in the same directory
qUiT	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: 

Test Case 7

Standard Input	Files in the same directory
input5.txtENTER QuiT	input1.txt input2.txt input3.txt input4.txt

Please enter the file name or type QUIT to exit: File: input5.txt does not exist. Please enter the file name again or type QUIT to exit: