demo_inheritance_add_method.py:
class Person: def __init__(self, fname, lname): self.firstname = fname self.lastname = lname def printname(self): print(self.firstname, self.lastname) class Student(Person): def __init__(self, fname, lname, year): super().__init__(fname, lname) self.graduationyear = year def welcome(self): print("Welcome", self.firstname, self.lastname, "to the class of", self.graduationyear) x = Student("Mike", "Olsen", 2019) x.welcome()
C:\Users\My Name>python demo_inheritance_add_method.py
Welcome Mike Olsen to the class of 2019