Python-сообщество

import datetime
birth_day = int(input("День народження: "))
birth_month = int(input("Місяць народження: "))
birth_year = int(input("Рік народження: "))
day = int(datetime.date.today().day)
month = int(datetime.date.today().month)
year = int(datetime.date.today().year)
function = int(input("Яку функцію ви вибираєте? " ))
if function==1 :
 if (month >= birth_month):
   age = year - birth_year
 else:
   age = (year - birth_year) - 1

 if (function >= 0) and (function < 4) and (age >= 0) and (age < 130):
    if function == 1:
            if birth_year % 4 != 0:
                print("It is a common year (365 days)")
            else:
                print("It is a leap year (366 days)")

elif function == 2 :
 if (month >= birth_month):
   age = year - birth_year
 else:
   age = (year - birth_year) - 1
 a = age
 b = abs(month - birth_month)
 c = abs(day - birth_day)
 d = ((age * 8760) + ((month-1) * 720) + ((day-1) * 24))
 e = ((age * 525600) + ((month-1) * 43200) + ((day-1) * 1440))
 f = ((age * 31536000) + ((month-1) * 2592000) + ((day-1) * 86400))
 print(f"Your age: {a} years, {b} months, {c} days, or {d} hours, or {e} minutes, or {f} seconds")
elif function == 3 :
        if (month >= birth_month):
            age = year - birth_year
        else:
            age = (year - birth_year) - 1
            if  (age < 1):
                group=("Your group is : Baby")
                print(f"{group}")
            elif  (age >= 1) and (3 < age):
                group=("Your group is : Toddler")
                print(f"{group}")
            elif  (age >= 3) and (5 < age):
                group=("Your group is : Preschool")
                print(f"{group}")
            elif  (age >= 5) and (12 < age):
                group=("Your group is : Gradeschooler")
                print(f"{group}")
            elif (age >= 12) and (19 < age):
                group=("Your group is : Teen")
                print(f"{group}")
            elif  (age >= 19):
                group=("Your group is : Adult")
                print(f"{group}")
else :
    print("ERROR! ALERT!!!")