feature: Complete the pizza 🍕

Author: dancergraham

chapter04_factory/pizza_abstract_factory.py

@@ -11,6 +11,11 @@ def __str__(self):
         return "Shredded Mozzarella"
 
 
+class ParmesanCheese(Cheese):
+    def __str__(self):
+        return "Shredded Parmesan"
+
+
 class ReggianoCheese(Cheese):
     def __str__(self):
         return "Reggiano Cheese"
@@ -112,22 +117,22 @@ def __str__(self) -> str:
 
 
 class PizzaIngredientFactory(abc.ABC):
-    def create_dough():
+    def create_dough(self):
         raise NotImplementedError
 
-    def create_sauce():
+    def create_sauce(self):
         raise NotImplementedError
 
-    def create_cheese():
+    def create_cheese(self):
         raise NotImplementedError
 
-    def create_veggies():
+    def create_veggies(self):
         raise NotImplementedError
 
-    def create_pepperoni():
+    def create_pepperoni(self):
         raise NotImplementedError
 
-    def create_clam():
+    def create_clam(self):
         raise NotImplementedError
 
 
@@ -264,8 +269,8 @@ class PizzaStore:
     def create_pizza(self, item):
         raise NotImplementedError
 
-    def order_pizza(self, type):
-        pizza = self.create_pizza(type)
+    def order_pizza(self, type_):
+        pizza = self.create_pizza(type_)
         print(f"--- Making a {pizza.name} ---")
         pizza.prepare()
         pizza.bake()

chapter04_factory/readme.md

@@ -2,14 +2,24 @@
 
 > **Simple Factory**: A class which chooses which product class to instantiate and return, based upon method parameters.
 
-The Python standard library contains multiple references to factory objects, for instances in [dataclasses](https://docs.python.org/3/library/dataclasses.html?highlight=factory)
+The Python standard library contains multiple references to factory objects, for instances
+in [dataclasses](https://docs.python.org/3/library/dataclasses.html?highlight=factory).
+The Factory Boy package provides easy object creation for Django
+and for other ORMs.
 
-> **Factory Method**: Defines an interface for creating an object, but lets subclasses decide which class to instantiate. The Factory method lets a class defer instantiation to subclasses.
+> **Factory Method**: Defines an interface for creating an object, but lets subclasses decide which class to
+> instantiate. The Factory method lets a class defer instantiation to subclasses.
 
-For instance the `PizzaStore` abstract class in this repo provides an abstract `create_pizza` interface for creating one product.
+For instance the `PizzaStore` abstract class in this repo provides an abstract `create_pizza` interface for creating one
+product.
 
-The [python-qrcode](https://github.com/dancergraham/python-qrcode) module uses the factory method pattern nicely to separate only the part of the code that changes (generating png, svg, etc) from the underlying logic of the code generation and to allow extension through the creation of new factory methods without modification of the existing code.  I took advantage of this to add a new class for the creation of 3D QR codes with my favourite NURBS modelling software Rhino.
+The [python-qrcode](https://github.com/dancergraham/python-qrcode) module uses the factory method pattern nicely to
+separate only the part of the code that changes (generating png, svg, etc.) from the underlying logic of the code
+generation and to allow extension through the creation of new factory methods without modification of the existing code.
+I took advantage of this to add a new class for the creation of 3D QR codes with my favourite NURBS modelling software
+Rhino.
 
-> **Abstract Factory**: Provides an interface for creating families of related or dependent objects without specifying their concrete classes.
+> **Abstract Factory**: Provides an interface for creating families of related or dependent objects without specifying
+> their concrete classes.
 
 For instance the `PizzaIngredientFactory` abstract class defines an interface for a family of products.