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Title: Common Python Data Structures (Guide) – Real Python

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Description: In this tutorial, you'll learn about Python's data structures. You'll look at several implementations of abstract data types and learn which implementations are best for your specific use cases.

Open Graph Description: In this tutorial, you'll learn about Python's data structures. You'll look at several implementations of abstract data types and learn which implementations are best for your specific use cases.

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Dictionaries, Maps, and Hash Tableshttps://realpython.com/python-data-structures/#dictionaries-maps-and-hash-tables
dict: Your Go-to Dictionaryhttps://realpython.com/python-data-structures/#dict-your-go-to-dictionary
collections.OrderedDict: Remember the Insertion Order of Keyshttps://realpython.com/python-data-structures/#collectionsordereddict-remember-the-insertion-order-of-keys
collections.defaultdict: Return Default Values for Missing Keyshttps://realpython.com/python-data-structures/#collectionsdefaultdict-return-default-values-for-missing-keys
collections.ChainMap: Search Multiple Dictionaries as a Single Mappinghttps://realpython.com/python-data-structures/#collectionschainmap-search-multiple-dictionaries-as-a-single-mapping
types.MappingProxyType: A Wrapper for Making Read-Only Dictionarieshttps://realpython.com/python-data-structures/#typesmappingproxytype-a-wrapper-for-making-read-only-dictionaries
Dictionaries in Python: Summaryhttps://realpython.com/python-data-structures/#dictionaries-in-python-summary
Array Data Structureshttps://realpython.com/python-data-structures/#array-data-structures
list: Mutable Dynamic Arrayshttps://realpython.com/python-data-structures/#list-mutable-dynamic-arrays
tuple: Immutable Containershttps://realpython.com/python-data-structures/#tuple-immutable-containers
array.array: Basic Typed Arrayshttps://realpython.com/python-data-structures/#arrayarray-basic-typed-arrays
str: Immutable Arrays of Unicode Charactershttps://realpython.com/python-data-structures/#str-immutable-arrays-of-unicode-characters
bytes: Immutable Arrays of Single Byteshttps://realpython.com/python-data-structures/#bytes-immutable-arrays-of-single-bytes
bytearray: Mutable Arrays of Single Byteshttps://realpython.com/python-data-structures/#bytearray-mutable-arrays-of-single-bytes
Arrays in Python: Summaryhttps://realpython.com/python-data-structures/#arrays-in-python-summary
Records, Structs, and Data Transfer Objectshttps://realpython.com/python-data-structures/#records-structs-and-data-transfer-objects
dict: Simple Data Objectshttps://realpython.com/python-data-structures/#dict-simple-data-objects
tuple: Immutable Groups of Objectshttps://realpython.com/python-data-structures/#tuple-immutable-groups-of-objects
Write a Custom Class: More Work, More Controlhttps://realpython.com/python-data-structures/#write-a-custom-class-more-work-more-control
dataclasses.dataclass: Python 3.7+ Data Classeshttps://realpython.com/python-data-structures/#dataclassesdataclass-python-37-data-classes
collections.namedtuple: Convenient Data Objectshttps://realpython.com/python-data-structures/#collectionsnamedtuple-convenient-data-objects
typing.NamedTuple: Improved Namedtupleshttps://realpython.com/python-data-structures/#typingnamedtuple-improved-namedtuples
struct.Struct: Serialized C Structshttps://realpython.com/python-data-structures/#structstruct-serialized-c-structs
types.SimpleNamespace: Fancy Attribute Accesshttps://realpython.com/python-data-structures/#typessimplenamespace-fancy-attribute-access
Records, Structs, and Data Objects in Python: Summaryhttps://realpython.com/python-data-structures/#records-structs-and-data-objects-in-python-summary
Sets and Multisetshttps://realpython.com/python-data-structures/#sets-and-multisets
set: Your Go-to Sethttps://realpython.com/python-data-structures/#set-your-go-to-set
frozenset: Immutable Setshttps://realpython.com/python-data-structures/#frozenset-immutable-sets
collections.Counter: Multisetshttps://realpython.com/python-data-structures/#collectionscounter-multisets
Sets and Multisets in Python: Summaryhttps://realpython.com/python-data-structures/#sets-and-multisets-in-python-summary
Stacks (LIFOs)https://realpython.com/python-data-structures/#stacks-lifos
list: Simple, Built-in Stackshttps://realpython.com/python-data-structures/#list-simple-built-in-stacks
collections.deque: Fast and Robust Stackshttps://realpython.com/python-data-structures/#collectionsdeque-fast-and-robust-stacks
queue.LifoQueue: Locking Semantics for Parallel Computinghttps://realpython.com/python-data-structures/#queuelifoqueue-locking-semantics-for-parallel-computing
Stack Implementations in Python: Summaryhttps://realpython.com/python-data-structures/#stack-implementations-in-python-summary
Queues (FIFOs)https://realpython.com/python-data-structures/#queues-fifos
list: Terribly Sloooow Queueshttps://realpython.com/python-data-structures/#list-terribly-sloooow-queues
collections.deque: Fast and Robust Queueshttps://realpython.com/python-data-structures/#collectionsdeque-fast-and-robust-queues
queue.Queue: Locking Semantics for Parallel Computinghttps://realpython.com/python-data-structures/#queuequeue-locking-semantics-for-parallel-computing
multiprocessing.Queue: Shared Job Queueshttps://realpython.com/python-data-structures/#multiprocessingqueue-shared-job-queues
Queues in Python: Summaryhttps://realpython.com/python-data-structures/#queues-in-python-summary
Priority Queueshttps://realpython.com/python-data-structures/#priority-queues
list: Manually Sorted Queueshttps://realpython.com/python-data-structures/#list-manually-sorted-queues
heapq: List-Based Binary Heapshttps://realpython.com/python-data-structures/#heapq-list-based-binary-heaps
queue.PriorityQueue: Beautiful Priority Queueshttps://realpython.com/python-data-structures/#queuepriorityqueue-beautiful-priority-queues
Priority Queues in Python: Summaryhttps://realpython.com/python-data-structures/#priority-queues-in-python-summary
Conclusion: Python Data Structureshttps://realpython.com/python-data-structures/#conclusion-python-data-structures
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Dictionaries, Maps, and Hash Tableshttps://realpython.com/python-data-structures/#dictionaries-maps-and-hash-tables
dict: Your Go-to Dictionaryhttps://realpython.com/python-data-structures/#dict-your-go-to-dictionary
collections.OrderedDict: Remember the Insertion Order of Keyshttps://realpython.com/python-data-structures/#collectionsordereddict-remember-the-insertion-order-of-keys
collections.defaultdict: Return Default Values for Missing Keyshttps://realpython.com/python-data-structures/#collectionsdefaultdict-return-default-values-for-missing-keys
collections.ChainMap: Search Multiple Dictionaries as a Single Mappinghttps://realpython.com/python-data-structures/#collectionschainmap-search-multiple-dictionaries-as-a-single-mapping
types.MappingProxyType: A Wrapper for Making Read-Only Dictionarieshttps://realpython.com/python-data-structures/#typesmappingproxytype-a-wrapper-for-making-read-only-dictionaries
Dictionaries in Python: Summaryhttps://realpython.com/python-data-structures/#dictionaries-in-python-summary
Array Data Structureshttps://realpython.com/python-data-structures/#array-data-structures
list: Mutable Dynamic Arrayshttps://realpython.com/python-data-structures/#list-mutable-dynamic-arrays
tuple: Immutable Containershttps://realpython.com/python-data-structures/#tuple-immutable-containers
array.array: Basic Typed Arrayshttps://realpython.com/python-data-structures/#arrayarray-basic-typed-arrays
str: Immutable Arrays of Unicode Charactershttps://realpython.com/python-data-structures/#str-immutable-arrays-of-unicode-characters
bytes: Immutable Arrays of Single Byteshttps://realpython.com/python-data-structures/#bytes-immutable-arrays-of-single-bytes
bytearray: Mutable Arrays of Single Byteshttps://realpython.com/python-data-structures/#bytearray-mutable-arrays-of-single-bytes
Arrays in Python: Summaryhttps://realpython.com/python-data-structures/#arrays-in-python-summary
Records, Structs, and Data Transfer Objectshttps://realpython.com/python-data-structures/#records-structs-and-data-transfer-objects
dict: Simple Data Objectshttps://realpython.com/python-data-structures/#dict-simple-data-objects
tuple: Immutable Groups of Objectshttps://realpython.com/python-data-structures/#tuple-immutable-groups-of-objects
Write a Custom Class: More Work, More Controlhttps://realpython.com/python-data-structures/#write-a-custom-class-more-work-more-control
dataclasses.dataclass: Python 3.7+ Data Classeshttps://realpython.com/python-data-structures/#dataclassesdataclass-python-37-data-classes
collections.namedtuple: Convenient Data Objectshttps://realpython.com/python-data-structures/#collectionsnamedtuple-convenient-data-objects
typing.NamedTuple: Improved Namedtupleshttps://realpython.com/python-data-structures/#typingnamedtuple-improved-namedtuples
struct.Struct: Serialized C Structshttps://realpython.com/python-data-structures/#structstruct-serialized-c-structs
types.SimpleNamespace: Fancy Attribute Accesshttps://realpython.com/python-data-structures/#typessimplenamespace-fancy-attribute-access
Records, Structs, and Data Objects in Python: Summaryhttps://realpython.com/python-data-structures/#records-structs-and-data-objects-in-python-summary
Sets and Multisetshttps://realpython.com/python-data-structures/#sets-and-multisets
set: Your Go-to Sethttps://realpython.com/python-data-structures/#set-your-go-to-set
frozenset: Immutable Setshttps://realpython.com/python-data-structures/#frozenset-immutable-sets
collections.Counter: Multisetshttps://realpython.com/python-data-structures/#collectionscounter-multisets
Sets and Multisets in Python: Summaryhttps://realpython.com/python-data-structures/#sets-and-multisets-in-python-summary
Stacks (LIFOs)https://realpython.com/python-data-structures/#stacks-lifos
list: Simple, Built-in Stackshttps://realpython.com/python-data-structures/#list-simple-built-in-stacks
collections.deque: Fast and Robust Stackshttps://realpython.com/python-data-structures/#collectionsdeque-fast-and-robust-stacks
queue.LifoQueue: Locking Semantics for Parallel Computinghttps://realpython.com/python-data-structures/#queuelifoqueue-locking-semantics-for-parallel-computing
Stack Implementations in Python: Summaryhttps://realpython.com/python-data-structures/#stack-implementations-in-python-summary
Queues (FIFOs)https://realpython.com/python-data-structures/#queues-fifos
list: Terribly Sloooow Queueshttps://realpython.com/python-data-structures/#list-terribly-sloooow-queues
collections.deque: Fast and Robust Queueshttps://realpython.com/python-data-structures/#collectionsdeque-fast-and-robust-queues
queue.Queue: Locking Semantics for Parallel Computinghttps://realpython.com/python-data-structures/#queuequeue-locking-semantics-for-parallel-computing
multiprocessing.Queue: Shared Job Queueshttps://realpython.com/python-data-structures/#multiprocessingqueue-shared-job-queues
Queues in Python: Summaryhttps://realpython.com/python-data-structures/#queues-in-python-summary
Priority Queueshttps://realpython.com/python-data-structures/#priority-queues
list: Manually Sorted Queueshttps://realpython.com/python-data-structures/#list-manually-sorted-queues
heapq: List-Based Binary Heapshttps://realpython.com/python-data-structures/#heapq-list-based-binary-heaps
queue.PriorityQueue: Beautiful Priority Queueshttps://realpython.com/python-data-structures/#queuepriorityqueue-beautiful-priority-queues
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