if choice == 1:
    Dele = np.array([loadcsv.Name[index[0][0]], loadcsv.Name[index[0][1]]])
    while True:
        for i in range(len(Dele)):
            print("{:d}. {:s} n".format(i+1, Dele[i]))
        try:
            Delechoice = float(input(("Please choose who to delete. ")))
        except ValueError:
            pass
        if Delechoice == 1:
            print(loadcsv.drop_duplicates(['StudentID'], keep ='last'))
            print("{:s} has been deleted from the data. ".format(dup1[1]))
            print(loadcsv.Name)
            break

        if Delechoice == 2:
            print(loadcsv.drop_duplicates(['StudentID']))
            print("{:s} has been deleted from the data. ".format(dup2[1]))
            break