Data Structures & Collections

This section covers Python's built-in modules for working with specialized data structures and container types.

📦 Modules

Core Collections

• collections - Specialized container datatypes like Counter, defaultdict, deque
• array - Efficient arrays of numeric values with type constraints

Algorithms & Utilities

• heapq - Heap queue algorithm (priority queue)
• bisect - Array bisection algorithm for maintaining sorted lists
• enum - Support for enumerations and symbolic constants

🔍 Quick Reference

Module	Purpose	Key Classes/Functions
collections	Specialized containers	Counter, defaultdict, deque, namedtuple
array	Typed arrays	array()
heapq	Priority queues	heappush(), heappop(), heapify()
bisect	Binary search	bisect_left(), bisect_right(), insort()
enum	Enumerations	Enum, IntEnum, Flag