Python Metaclasses and Class Creation Quiz

Review

1. Which call dynamically creates a class named Notice with no bases and the supplied attributes?

   The three-argument form takes the class name, a tuple of bases, and its namespace.
2. What is the role of a metaclass __prepare__() method?

   The prepared mapping is the namespace in which Python executes the body of the class definition.
3. On the standard type.__new__() path, which order is correct after the class body has run?

   The standard type creation path calls descriptor naming hooks and then the parent subclass hook; class decorators apply after the class object exists.
4. When does a metaclass conflict occur?

   Python must choose one compatible metaclass; unrelated candidates may make this impossible.
5. You need to register and validate subclasses of a base class, but do not need to change class construction itself. What should you consider first?

   The base-class __init_subclass__ hook is usually a simpler mechanism for subclass configuration and validation.