Implemented the basic template pattern

Author: dancergraham

chapter08_template/barista.py

@@ -0,0 +1,47 @@
+class CaffeineBeverage:
+    def prepare_recipe(self):
+        self.boil_water()
+        self.brew()
+        self.pour_in_cup()
+        self.add_condiments()
+
+    def brew(self):
+        raise NotImplementedError
+
+    def add_condiments(self):
+        raise NotImplementedError
+
+    def boil_water(self):
+        print("Boiling water")
+
+    def pour_in_cup(self):
+        print("Pouring into cup")
+
+
+class Tea(CaffeineBeverage):
+    def brew(self):
+        print("Steeping the tea")
+
+    def add_condiments(self):
+        print("Adding Lemon")
+
+
+class Coffee(CaffeineBeverage):
+    def brew(self):
+        print("Dripping Coffee through filter")
+
+    def add_condiments(self):
+        print("Adding Sugar and Milk")
+
+
+def beverage_test_drive():
+    tea = Tea()
+    coffee = Coffee()
+    print("\nMaking tea...")
+    tea.prepare_recipe()
+    print("\nMaking coffee...")
+    coffee.prepare_recipe()
+
+
+if __name__ == "__main__":
+    beverage_test_drive()

chapter08_template/readme.md

@@ -1,3 +1,3 @@
 # Chapter 8: Template design pattern
 
-> **Template Method**: Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Template Method lets subclasses redefine certain steps of an algorithm without changing the algorithm's structure. 
+> **Template Method**: Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Template Method lets subclasses redefine certain steps of an algorithm without changing the algorithm's structure.