python inheritance

#output:
#flap flap
#egg Layed
#swimmy swimmy
#walkie walkie
#eww, worms
#nom, nom
#swimmy swimmy
#swimmy swimmy
#nom, nom

class Bird ():
  name="wolly"
  def layEgg (this):
    print "egg Layed"
  def walk (this):
    print "walkie walkie"

def eatWorms(cls):
  print("eww, worms")
Bird.eatWorms = classmethod(eatWorms)

class Duck(Bird):
  def fly (this):
    print "flap flap"

class Penguin(Bird):
  def swim (this):
    print "swimmy swimmy"

duck1 = Duck()
duck1.fly()
duck1.layEgg()


penguin1 = Penguin()
penguin1.swim()
penguin1.walk()
penguin1.eatWorms()
def eatFish(cls):
  print(cls.name+" nom, nom")
Bird.eatFish = classmethod(eatFish)
penguin1.eatFish()
penguin1.swim()

penguin2=Penguin()
penguin2.swim()




penguin2.eatFish()