task: Complete step 6 prep exercises

Author: jakr-s

prep-exercises/generics.py

@@ -0,0 +1,30 @@
+# ------------------------
+# Fix the above code so that it works. You must not change the print on line 17 - we do want to print the children’s ages. (Feel free to invent the ages of Imran’s children.)
+# ------------------------
+
+# A.
+
+from dataclasses import dataclass
+from typing import List
+
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    children: List["Person"]
+
+
+fatma = Person(name="Fatma", age=11, children=[])
+aisha = Person(name="Aisha", age=6, children=[])
+
+imran = Person(name="Imran", age=43, children=[fatma, aisha])
+
+
+def print_family_tree(person: Person) -> None:
+    print(person.name)
+    for child in person.children:
+        print(f"- {child.name} ({child.age})")
+
+
+print_family_tree(imran)