Basic OOP-Based Fibonacci Sequence in Python

fibo.py

class UserList:
    def __init__(self, initlist: list = []):
        self.data = initlist

class FiboList(UserList):
    def __init__(self):
        super().__init__([0, 1])
    
    def __next__(self):
        sum_ = sum(self.data)
        self.data.append(sum_)
        self.data.pop(0)
        return sum_
    
    def __iter__(self):
        return self

# --- #

i = FiboList()
for number in i:
    print(number)

Todos:

• Make list predefined length of a maximum of Three Elements
• Make list homogeneous (only of type int)