T1 = ['13', '17', '18', '21', '32'] #list with numbers stored as string T3 = list(map(int, T1)) print(T3) #prints [13, 17, 18, 21, 32] #or T4 = [int(x) for x in T1] print(T4) #prints [13, 17, 18, 21, 32]