python - Noob....Trying to understand inheritance and list for objects

Question

I'm trying to understand what is the main difference between the 2 versions as well as how do i access the a1? Any help or resources is greatly appreciated

class a:
    def __init__(self,a1,a2):
        self.a1 = a1
        self.a2 = a2
        
    def get_a1(self):
        return self.a1
    
    def get_a2(self):
        return self.a2


class b(a):
    def __inti__list_ab(self,list_ab):
        self.list_ab =[]
    
    def __init__(self,a1,a2,b1):
        super().__init__(a1,a2)
        self.b1 = b1
        
    def add_ab(newab):
        b.list_ab.append(newab)
        
boy = b("Kel","AL","Jon")

girl = b("Jill","Mary","Ann")

b.add_ab(boy)

Version 2

class b(a):
    list_ab = []
    
    def __init__(self,a1,a2,b1):
        super().__init__(a1,a2)
        self.b1 = b1
        
    def add_ab(newab):
        b.list_ab.append(newab)

question from:https://stackoverflow.com/questions/65839583/noob-trying-to-understand-inheritance-and-list-for-objects

Answer 1

Waitting for answers