Class, Constructor, Instance, Method.py

class Circle:
  pi = 3.14
  def __init__(self, diameter):
    
    print("Creating circle with diameter {d}".format(d=diameter))
    # Add assignment for self.radius here:
    self.radius = diameter/2

  def circumference(self):
    circumference = 2 * self.pi * self.radius
    return circumference

medium_pizza = Circle(12)
teaching_table = Circle(36)
round_room   = Circle(11460)

print(round_room.circumference())