people.py

class Person:
    first_name = None
    last_name = None
    
    def get_name(self):
        return first_name, last_name


class Friend(Person):
    def get_name(self):
        #name = super(Friend, self).get_name()  # Python 2 version
        name = super().get_name()  # Python 3
        return name[0]

kenneth = Person()
kenneth.first_name = "Kenneth"
kenneth.last_name = "Love"
kenneth.get_name()  # outputs ("Kenneth", "Love")

craig = Friend()
craig.first_name = "Craig"
craig.last_name = "Dennis"
craig.get_name()  # outputs "Craig"