Can a Python class mimic the behavior of an array?

Question

Python

Is it possible in Python 3.x to set a class to refer to its instance as an array:

class A():
    ...

a = A()
a[1]    # нужно чтобы можно было вот так обращаться к экземпляру класса

Ideally, get and set methods are needed for elements that are retrieved as in the code above. I did not find the necessary magic methods. Can this be done somehow?

Answer 1

Yes, of course it can. Define the __iter__ and __getitem__ methods . The first is to be able to use in a loop like for i in a, the second to access a[i]. In the same place there is a description of the __setitem__ method and a lot of other interesting things.

Answer 2

Inherit from the standard list and write your own blackjacks and methods.

Answer 3

I did not find the necessary magic methods.

The __getitem__ method will help you .