Code

Function wrappers for extensibility and composability

Resource management with `with` statement

Reusable property-like behavior for attributes

Improving code structure without changing behavior

Dunder methods for custom behavior

Structural subtyping with duck typing and type safety

Lazy evaluation with yield and itertools

Class creation hooks and runtime class generation

Caching, partial functions, and function utilities

Asyncio patterns, coroutines, and concurrent I/O

Memory optimization with __slots__

Threading, multiprocessing, and concurrent.futures