Post final QA

Author: bzaczynski

python-double-underscore/cart.py

@@ -1,6 +1,5 @@
 class ShoppingCart:
-    def __init__(self, customer_id):
-        self.customer_id = customer_id
+    def __init__(self):
         self.products = []
 
     def add_product(self, product):
@@ -11,5 +10,3 @@ def get_products(self):
 
     def __len__(self):
         return len(self.products)
-
-    # Implementation...

python-double-underscore/mangling.py

@@ -13,3 +13,20 @@ def __init__(self):
 
     def __method(self):  # Doesn't override A.__method()
         print("B.__attr = ", self.__attr)
+
+
+if __name__ == "__main__":
+    a = A()
+    b = B()
+
+    # Call the mangled methods
+    print(f"{a._A__method()=}")
+    print(f"{b._B__method()=}")
+
+    # Check attributes
+    print(f"{a.__dict__=}")
+    print(f"{b.__dict__=}")
+
+    # Access the attributes on b
+    print(f"{b._A__attr=}")
+    print(f"{b._B__attr=}")