make default argument handlded inside the parser for animal flag

Author: HassanOHOsman

implement-cowsay/cow.py

@@ -9,13 +9,13 @@
     description="Makes animals say things",
 )
 
-parser.add_argument("--animal", help="Select an animal to say anything", choices=listed_animals)
+parser.add_argument("--animal", default="cow", help="Select an animal to say anything", choices=listed_animals)
 parser.add_argument("message", nargs ="+", help="The message that the animal says")
 
 args = parser.parse_args()
 
 message = " ".join(args.message)
-animal = args.animal or "cow"
+animal = args.animal
 
 
 if animal not in listed_animals: