fix: now calculates the accurate ages by handling the mid-year birthdays correctly

Author: Mikiyas-STP

prep_exercises/exercise6.py

@@ -5,21 +5,24 @@
 @dataclass(frozen=True)
 class Person:
     name: str
-    age: int
+    birth_date: date
     children: List["Person"]
 
-fatma = Person(name="Fatma", birth_year=2011, children=[])
-aisha = Person(name="Aisha", birth_year=2015, children=[])
+fatma = Person(name="Fatma", birth_date=date(2011, 5, 10), children=[])
+aisha = Person(name="Aisha", birth_date=date(2015, 8, 22), children=[])
 
-imran = Person(name="Imran", birth_year=2000, children=[fatma, aisha])
+imran = Person(name="Imran", birth_date=date(2000, 3, 15), children=[fatma, aisha])
 
-def current_age(birth_year:int) -> int:
+def current_age(birth_date: date) -> int:
     today = date.today()
-    return today.year - birth_year
+    age = today.year - birth_date.year
+    if (today.month, today.day) < (birth_date.month, birth_date.day):
+        age -= 1
+    return age
 
 def print_family_tree(person: Person) -> None:
-    print(f"{person.name} ({current_age(person.birth_year)})")
+    print(f"{person.name} ({current_age(person.birth_date)})")
     for child in person.children:
-        print(f"- {child.name} ({current_age(child.birth_year)})")
+        print(f"- {child.name} ({current_age(child.birth_date)})")
 
 print_family_tree(imran)