How to sort array based dictionary in Python

Publicado el: 25 noviembre 2023
en el canal de: CodeFast
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Sorting an array of dictionaries in Python can be a common task when working with data where each element is represented as a dictionary. Python provides a powerful built-in function, sorted(), that can be used to sort lists, including lists of dictionaries. In this tutorial, we'll explore how to sort an array of dictionaries based on a specific key.
Make sure you have Python installed on your machine. You can download Python from the official Python website.
Let's start by sorting an array of dictionaries based on a single key. For this example, we'll use a list of dictionaries representing people with their ages.
In this example, the key parameter of the sorted() function is set to a lambda function that extracts the 'age' value from each dictionary. The resulting sorted_people list will be in ascending order based on age.
To sort the array in descending order, you can use the reverse parameter of the sorted() function.
Here, the reverse=True parameter is added to the sorted() function, ensuring that the list is sorted in descending order based on age.
You can also sort an array of dictionaries based on multiple keys. Let's consider sorting the array first by 'age' and then by 'name' in case of a tie.
In this example, the key parameter is set to a lambda function that returns a tuple (x["age"], x["name"]). The sorting is done first by age and then by name.
Sorting an array of dictionaries in Python is straightforward using the sorted() function. By specifying a key or a combination of keys, you can customize the sorting behavior to meet your specific requirements.
Feel free to adapt these examples to suit your data and sorting criteria. Sorting arrays of dictionaries is a powerful tool when working with diverse datasets in Python.
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