ECS GPA

from tkinter import *
import tkinter.simpledialog
import tkinter.messagebox

root = Tk()
w = Label(root, text="GPA")
w.pack()

grade1 = tkinter.simpledialog.askinteger("Grade 1", "Please enter the number for your first grade (A=4, B=3, C=2, D=1, F=0)")
#1. add 3 more statments like the one above so your program will ask for 4 grades total.

sum = grade1;
#2. edit the line above to add up all the grades from #1;

gpa = sum;
#3. edit the line above to divide the sum by 4.0

tkinter.messagebox.showinfo("GPA", "Your GPA is " + str(gpa))

#Answer questions 4-6 on paper.
#4. What's the most number of F's you can get and still get a 2.0?
#5. What would you have to change in the code if it was supposed to work with
#   6 grades instead of 4?
#6. In #3, what happens if you try to divide by 4 instead of 4.0?  Try it both
#   ways with the grades, 4, 3, 2, 1.