factory v2

test4.py

@@ -19,6 +19,9 @@ class Selling_plan(ABC):
         pass
 
 
+# there are my concrete classes
+# that has abstractmethod inherited from interface selling_plan()
+
 class SellAll(Selling_plan):
 
     def sell_crypto(self, x: float, y: float):
@@ -69,6 +72,7 @@ choice = int(input(" enter selling option "
                    "\n2.sellHalf "
                    "\n3.sellLittle \n"))
 
+# this is my client which call my factory class
 client = TradingApp().create_object(choice)
 
-print(client.sell_crypto(x,y))
+print(client.sell_crypto(x, y))