def handle_grades():
    print('1 Load Grades')
    print('2 Generate Grades')
    selection = input('Please Select: ')
    grades_df_list = []

    if selection == '1':
        amt_loading = input('How many grade datasets would you like to load? ')
        return amt_loading,[read_csv_dataset\
                            (input('Filename of course grades dataset: '))\
                            for file in range(int(amt_loading))]

    elif selection == '2':
        return dg.generate_grades(input('How many grade datasets would you like to generate? '))
    else:
        raise  # Throw error to main()