Guys where is my fault ? I couldn't find it. Is there a bug ?
When I clicked submit , the error message showed up : Oops, try again. Make sure to give your Animal class a health member variable.
class Animal(object): """Makes cute animals.""" is_alive = True health = "good" def __init__(self, name, age): self.name = name self.age = age def description(self): print self.name print self.age hippo = Animal("Jake" , 12) sloth = Animal("Kyle", 10) ocelot = Animal("Frank", 5) print hippo.health print sloth.health print ocelot.health