Code Review sample

myprogram.py

@@ -0,0 +1,35 @@
+from typing import Optional
+import logging
+
+class Person:
+  """
+  Represent a person in python
+  """
+  def __init__(self, firstname, lastname, age):
+    """
+    Initialize a person with firstname, lastname and age
+    """
+    self.firstname = firstname
+    self.lastname = lastname
+    self.age = age
+
+
+def average_age(persons: Optional[list[Person]]) -> Optional[int]:
+    """
+    Compute the average age of the list of persons
+    """
+    if persons:
+        try:
+            all_ages = list(map(lambda p: p.age, persons))
+            return sum(all_ages) / len(all_ages)
+        except Exception:
+            logging.error("error happened when computing the average")
+            return None
+    return None
+    print("computing all ages done")
+
+p1 = Person("John", "Doe", 51)
+p2 = Person("Luke", "Skywalker", 21)
+list_of_persons = [p1, p2]
+print("Average age")
+print(average_age(list_of_persons))