Final QA including new example (#419)

Author: gahjelle

python-operator-module/calculate_modulus.pkl

@@ -11,7 +11,7 @@ class Musician:
 
     def get_full_name(self, last_name_first=False):
         if last_name_first:
-            return f"{self.lname} {self.fname}"
+            return f"{self.lname}, {self.fname}"
         return f"{self.fname} {self.lname}"
 
 

python-operator-module/calculate_modulus_deserialize_failed.py

@@ -0,0 +1,11 @@
+import pickle
+
+with open("operators.pkl", mode="rb") as f:
+    operators = pickle.load(f)
+
+
+def perform_operation(op_string, number1, number2):
+    return operators[op_string](number1, number2)
+
+
+print(perform_operation("*", 10, 5))