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Working with JSON data from Python

Learn about serializing Python objects to JSON, and its reverse, deserializing JSON to Python objects.

GK# 5195

Course Overview

JavaScript Object Notation (JSON) is an open-standard format that uses human-readable text to transmit data objects consisting of key-value pairs (KVPs). It's the most common data format used for asynchronous browser/server communication (AJAJ), largely replacing XML which is used by AJAX. 

This course will carefully examine serializing Python objects to JSON, and its reverse, deserializing JSON to Python objects. The default JSON encoder is sufficient to serialize some Python objects; we will explain in depth when a custom encoder is needed and how to build one. Likewise, the course will also cover building a custom decoder.

Delivery Format Options

  • GK Digital Learning

    GK Digital Learning

    Experience high-quality online learning combined with reliable expert guidance and skills development activities.


    $329 CAD

    90 day

  • Private Group Training

    Private Group Training

    Train your entire team in a private, coordinated professional development session at the location of your choice.

    Receive private training for teams online and in-person.

Request a date or location for this course.

What You'll Learn

  • Identify seven basic data types that closely map between Python and JSON
  • Serialize basic Python types to JSON
  • Deserialize basic JSON types to Python objects
  • Write a custom JSON encoder to serialize a Python object to JSON
  • Write a custom JSON decoder to deserialize JSON to a Python object


A basic understanding of the Python language and standard library.

Who Needs To Attend

Python developers whose application needs to generate or consume JSON data

Course Outline

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