Working With JSON Data in Python

Austin Cepalia 7 Lessons 36m
intermediate python

JSON is a lightweight data-interchange format. It allows us to represent the objects in our Python programs as human-readable text that can be sent over the internet. Lots of APIs and databases use JSON for communication.

You’ll learn how to work with Python’s built-in json module to serialize the data in your programs into JSON format. Then, you’ll deserialize some JSON from an online API and convert it into Python objects.

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Working With JSON Data in Python

7 Lessons 36m

1. What Is JSON? 04:48

2. Serializing JSON Data 04:39

3. Deserializing JSON Data 03:04

4. Working With JSON Data in Python 10:34

5. JSON for Custom Python Objects 04:18

6. Encoding Custom Types to JSON 04:02

7. Decoding Custom Types From JSON 04:59

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About Austin Cepalia

Austin is a video tutorial author at Real Python. He's currently a student working towards a degree in computer science at Rochester Institute of Technology.

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Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

Sadie

Lucas

Dan

Joanna

Aldren

Participant Comments

PururinTora on March 2, 2022

This was awesome Guys! I learnt a lot from it. These lines were absolute highlights for me:

sorted_users = sorted(todos_by_user.items(), key=lambda x: x[1], reverse=True)
filtered_todos = list(filter(keep, todos))

mikesult on Feb. 20, 2020

Great course, I really liked working with the custom type encoder/decoder. I usually type the exercises out by hand and I have been using single quotes instead of double quotes. One thing I learned was that JSON requires double quotes, single quotes don’t work. You might have mentioned that and I missed it (I think I read that somewhere and already had forgotten it). That made me fumble around for a while when I wrote out the complex_data.json using single quotes and JSON_Ex5.py didn’t work. Those are the kind of things that can trip me a bit. I appreciate learning about working with JSON. Thank you.