Introduction

Dictionaries in Python are unordered collections of items stored as key-value pairs. Each key is unique, and it maps to a specific value. Dictionaries are mutable, meaning you can change their contents after they are created. They are ideal for situations where you need to associate unique keys with specific values.

Key Properties of Dictionaries:

• Unordered: Dictionaries do not maintain any order for their items.
• Mutable: You can change, add, and remove items in a dictionary after creation.
• Key-Value Pairs: Each item in a dictionary is a pair consisting of a key and a value.
• Unique Keys: Dictionary keys must be unique and immutable types (such as strings, numbers, or tuples).

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