How can I write this code in a class?
import datetime
now = datetime.datetime.today().year
my_date = input().split('/')
if int(my_date[1]) > 12 or int(my_date[2]) > 31:
print('WRONG')
else:
my_age = now - int(my_date[0])
print(int(my_age))
when I write it in a class it doesn't work propery