How to create list of dictionary in Python

In this article, we are going to discuss ways in which we can create a list of dictionaries in Python.  Let’s start with a basic method to create a list of dictionaries using Python.

[{'name': 'Alice', 'age': 25}, {'name': 'Bob', 'age': 30}]
<class 'list'>

We created a list a containing two dictionaries. Each dictionary has keys like "name" and "age" and their corresponding values. Let's explore other methods to create a list of dictionaries.

Creating a List of Dictionaries Using a Loop

Creating a list of dictionaries using a for loop is efficient approach. We can dynamically generate dictionaries.

[{'name': 'Person 1', 'age': 20}, {'name': 'Person 2', 'age': 21}, {'name': 'Person 3', 'age': 22}]

Creating a List of Dictionaries using List Comprehension

List comprehension is a compact way to create lists. We can use it to create a list of dictionaries in just one line.

[{'name': 'Person 1', 'age': 20}, {'name': 'Person 2', 'age': 21}, {'name': 'Person 3', 'age': 22}]

Creating a List of Dictionaries from Lists

If we already have a list of data, and we want to turn it into a list of dictionaries. We can use a loop or list comprehension to do this.

[{'name': 'Alice', 'age': 25}, {'name': 'Bob', 'age': 30}, {'name': 'Charlie', 'age': 22}]

Accessing Dictionary Elements from a List of Dictionaries

We can access the elements in a list of dictionaries by using indexing for the dictionary and the keys for specific values inside the dictionary.