Ответ:
import datetime
from calendar import monthrange
birth_day = int(input("Day of birth: "))
birth_month = int(input("Month of birth: "))
birth_year = int(input("Year of birth: "))
day = int(datetime.date.today().day)
month = int(datetime.date.today().month)
year = int(datetime.date.today().year)
if birth_month <= month:
if birth_day <= day:
a = year - birth_year
b = abs(month - birth_month)
c = abs(day - birth_day)
else:
a = (year - birth_year) - 1
b = 11 - abs(month - birth_month)
c = monthrange(year, month)[1] - abs(day - birth_day)
else:
a = (year - birth_year) - 1
b = 11 - abs(month - birth_month)
c = monthrange(year, month)[1] - abs(day - birth_day)
print("Your age: {} years, {} months, {} days".format(a,b,c))
Объяснение: