Dictionary items are ordered, changeable, and do not allow duplicates. Dictionary items are presented in key:value pairs, and can be referred to by using the key name.

A dictionary in Python is a mutable collection of key-value pairs that allows for efficient data retrieval using unique keys. Both dict() and {} can create dictionaries in Python.

Sep 20, 2025 · Python dictionary is a data structure that stores the value in key: value pairs. Values in a dictionary can be of any data type and can be duplicated, whereas keys can't be repeated and must …

A Python dictionary is a collection of items, similar to lists and tuples. However, unlike lists and tuples, each item in a dictionary is a key-value pair (consisting of a key and a value).

A Python dictionary is a collection of key-value pairs where each key is associated with a value. A value in the key-value pair can be a number, a string, a list, a tuple, or even another dictionary.

Learn about Python dictionaries, their properties, accessing & modifying the values, methods, functions, and operations with examples.

Python dictionaries are one of the four built-in data structures we use to store data in key-value pairs. A key acts as a unique identifier for an element and helps us locate data in memory.

Nov 13, 2025 · A Python dictionary is a collection that is unordered, mutable, and does not allow duplicates. Each element in the dictionary is in the form of key:value pairs.

Apr 1, 2022 · A Python dictionary is a data structure that allows us to easily write very efficient code. In many other languages, this data structure is called a hash table because its keys are hashable.

A Python dictionary is a collection of key-value pairs where each key must be unique. Think of it like a real-world dictionary where each word (key) has a definition (value).