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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.

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.

GK# 5195
Vendor Credits:
  • Global Knowledge Delivered Course
  • Training Exclusives
  • GSA Eligible
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Who Should Attend?

Python developers whose application needs to generate or consume JSON data

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

Course Outline

  1. Serialize Python to JSON
  2. Deserialize JSON to Python
  3. JSON Encoders and Decoders


A basic understanding of the Python language and standard library