Update app.py

app.py

@@ -109,12 +109,12 @@ for i in questions:
 submit_button = Quiz.form_submit_button("Submit")
 
 def calculate_average(numbers):
-        if not numbers:
-            return 0  # Return 0 for an empty list to avoid division by zero.
+    numbers = [int(x) for x in numbers if isinstance(x, (int, str))]
 
-        total = sum(numbers)
-        average = total / len(numbers)
-        return average
+
+    total = sum(numbers)
+    average = total / len(numbers)
+    return average
 
 if submit_button:
     for i, q in enumerate(questions):  # This line was missing the enumeration