Quick Check: Python __new__ and Object Creation

Review

1. Which method is responsible for creating the new instance in the normal construction sequence?

   __new__() is the creation step; __init__() runs afterward to initialize the returned instance.
2. Why is __new__() particularly useful for subclasses of immutable built-in types?

   An immutable value has to be established when the object is created, before __init__() can run.
3. What does the usual cls parameter of __new__() represent?

   cls is the class whose instance is being requested, which lets the method remain subclass-aware.
4. What happens when __new__() returns an object that is not an instance of cls?

   The result of the class call is the object returned by __new__(). If it is not an instance of cls, cls.__init__() is skipped.
5. Why should an overridden __new__() usually pass cls to super().__new__()?

   Using cls tells the parent creation method which class is actually being instantiated, so inherited creation stays subclass-aware.