Learn Python Programming: A beginner's guide to learning the fundamentals of Python language to write efficient, high-quality code (2nd Edition) by Fabrizio Romano

Author:Fabrizio Romano
Language: eng
Format: azw3, epub, mobi
Tags: Non-Fiction, Programming, Guide, Computer Science
ISBN: 9781788996662
Publisher: Packt Publishing
Published: 2018-06-28T23:00:00+00:00

Custom encoding/decoding with JSON

In the JSON world, we can consider terms like encoding/decoding as synonyms to serializing/deserializing. They basically all mean transforming to and back from JSON. In the following example, I'm going to show you how to encode complex numbers:

# json_examples/json_cplx.py

import json

class ComplexEncoder(json.JSONEncoder):

def default(self, obj):

if isinstance(obj, complex):

return {

'_meta': '_complex',

'num': [obj.real, obj.imag],

}

return json.JSONEncoder.default(self, obj)

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