Dictionaries in Python

Definition

A dictionary in Python is an unordered, mutable collection that stores data in key-value pairs. Each key in a dictionary is unique and maps to a corresponding value.

Examples

My_dict = {"name": "kaashiv", "age": 25, "district": "chennai"}

Features

• You can change, add, or remove key-value pairs.
• Fast access to values based on unique keys.
• Each item in a dictionary consists of a key and a value.

Advantages

• Efficient in Quick Data Retrieval
• It has Flexible Data Storage
• Easy to update, modify, or remove key-value pairs.

 Uses

• Ideal for storing related data
• Quick access to data when you need to search by a unique key.
• Useful in counting occurrences of elements in a dataset