For Python 3:

Write a program that keeps a dictionary in which both keys and values are strings - names of students and their course grades. Your program should prompt the user with a menu consisting of the following options: Select an option: [1] Add Student Grade [2] Remove Student Grade [3] Modify Student Grade [4] Display All Student Grades Enter selection: If the user enters option 1, as shown below, the program shall behave as shown: Enter selection: 1 --Add Student-- Enter Name: Joe Enter Grade: B+ Student Successfully Added! If the user enters option 2, the program shall behave as follows: Enter selection: 2 --Remove Student-- Enter Name: Joe Successfully Removed 'Joe'! If the user enters option 3, the program shall behave as follows Enter selection: 3 -Modify Student Grade-- Enter Name: Joe Enter Grade C Successfully Updated 'Joe'! The display produced by option 4 should show each student's name with their corresponding grade with the following formatting: Enter selection: 4 --Displaying All Students-- Carl: B+ Joe: C Sarah: A Francine: A