New global display method to print not implemented features

app_customer.py

@@ -58,6 +58,6 @@ while running:
         else:
             display.warehouseList(houseList)
     else:
-        print('Action', action, 'not implemented yet.')
+        display.notImplemented(action)
 
 display.end()

app_dispatcher.py

@@ -14,6 +14,6 @@ rows = consumer.getCompanyNames()
 print('Companies to be delivered :')
 for r in rows:
         print(r)
-print('Application not implemented yet')
+display.notImplemented('dispatcher application')
 
 display.end()

app_product.py

@@ -31,6 +31,6 @@ while running:
         consumer.commit()
         print('Done.')
     else:
-        print('Action', action, 'not implemented yet.')
+        display.notImplemented(action)
 
 display.end()

basic_display.py

@@ -19,6 +19,9 @@ class BasicDisplay():
         bar = '-' * 5
         print('+', bar, 'end', bar, '+')
 
+    def notImplemented(self, feature):
+        print('Feature', feature, 'not implemented yet.')
+
     def product(self, p):
         print(p.id ,':', p.name)