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.

Jan 15, 2026 · A Python dictionary is a data structure that stores data in key-value pairs, where each key is unique and is used to retrieve its associated value. It is mainly used when you …

In this tutorial, you'll learn how to work with Python dictionaries to help you process data more efficiently. You'll learn how to create dictionaries, access their keys and values, update …

Learn how to create, modify, and use dictionaries in Python. This tutorial covers all dictionary operations with practical examples for beginners and advanced users.

We can also create a dictionary using a Python built-in function dict(). To learn more, visit Python dict (). Immutable objects can't be changed once created. Some immutable objects in Python …

Jan 20, 2026 · The basic syntax gives you three ways to create a dict. Pick whichever feels right for the situation. All three produce identical results. The literal notation (method 1) is faster and …

Mar 11, 2025 · Python dictionaries are ordered data structures that map keys to values. Dictionary keys can be any immutable data type, such as numbers, strings, tuples, etc, while dictionary …