Using typing.NamedTuple for immutable objects

In some cases, an object is a container of rather complex data, but doesn't really do very much processing on that data. Indeed, in many cases, we'll define a class that doesn't require any unique method functions. These classes are relatively passive containers of data items, without a lot of processing.

In many cases, Python's built-in container classes – list, set, or dict – can cover the use cases. The small problem is that the syntax for a dictionary or a list isn't quite as elegant as the syntax for attributes of an object.

How can we create a class that allows us to use object.attribute syntax instead of object['attribute']?

Getting ready

There are two cases for any kind of class design:

• Is it stateless (immutable)? Does it embody attributes with values that never change? This is a good example of a NamedTuple.
• Is it stateful (mutable)? Will there...