class Robot:
def __init__(self, name):
self.name = name
def say_hi(self):
print("Hi, I am " + self.name)
class PhysicianRobot(Robot):
pass
x = Robot("Marvin")
y = PhysicianRobot("James")
print(x, type(x))
print(y, type(y))
y.say_hi()