single inheritance in python example

Example 1: inheritance in python 3 example

class Robot:
    
    def __init__(self, name):
        self.name = name
        
    def say_hi(self):
        print("Hi, I am " + self.name)
        
class PhysicianRobot(Robot):

    def say_hi(self):
        print("Everything will be okay! ") 
        print(self.name + " takes care of you!")

y = PhysicianRobot("James")
y.say_hi()

Example 2: inheritance in python 3 example

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()