Recipe 6.1. Converting Among Temperature Scales
Recipe 6.2. Defining Constants
Recipe 6.3. Restricting Attribute Setting
Recipe 6.4. Chaining Dictionary Lookups
Recipe 6.5. Delegating Automatically as an Alternative to Inheritance
Recipe 6.6. Delegating Special Methods in Proxies
Recipe 6.7. Implementing Tuples with Named Items
Recipe 6.8. Avoiding Boilerplate Accessors for Properties
Recipe 6.9. Making a Fast Copy of an Object
Recipe 6.10. Keeping References to Bound Methods Without Inhibiting Garbage Collection
Recipe 6.11. Implementing a Ring Buffer
Recipe 6.12. Checking an Instance for Any State Changes
Recipe 6.13. Checking Whether an Object Has Necessary Attributes
Recipe 6.14. Implementing the State Design Pattern
Recipe 6.15. Implementing the "Singleton" Design Pattern
Recipe 6.16. Avoiding the "Singleton" Design Pattern with the Borg Idiom
Recipe 6.17. Implementing the Null Object Design Pattern
Recipe 6.18. Automatically Initializing Instance Variables from _ _init_ _ Arguments
Recipe 6.19. Calling a Superclass _ _init_ _ Method If It Exists
Recipe 6.20. Using Cooperative Supercalls Concisely and Safely