class Square: def __init__(self, side_length): self.side_len = side_length def calcA(self): return self.side_len**2class Circle: def __init__(self, rad): self.rad = radius def calcA(self): import math return math.pi*(self.rad**2)print "test program"print ""print "Type '2' for calculating any square's area"print "Type '1' for calculating any circle's area"choice = input("Your choise: ")if choice == 1: radius = input("What is the circle's radius?: ") c = Circle(radius) print "The area is: %d" % c.calcA()elif choice == 2: side_length = input("What is the square's side length? ") s = Square(side_length) print "The area is: %d" % s.calcA()else: print("Wrong input")