Polymorphisom strong and duck typing

 

#!polymorphisom strong and duck typing

class Horse:

    def walk(self):

        print ("tabrak tabrak tabrak")

class Duck:

    def walk(self):

        print ("tapak thapak thapak")

class Cat:

    def talk(self):

        print ("mew mew mew")

def funk1(obj):

    if hasattr(obj,"walk"):          #importent line

        obj.walk()

d=Duck()

funk1(d)

h=Horse()

funk1(h)

c=Cat()

funk1(c)