How to Serialize a Class Object to JSON in Python

Changsin Lee
7 min readSep 11, 2021

Serializing your own class objects is quite straightforward in Python. Here are some tips.

· 1. Class Definition
· 2. Requirements
· 3. Solutions
Method 1: Use json.dumps() and __dict__
Method 2: Implement __str__ and __repr__
Method 3: Implement JSON Encoder
· 4. Handling complex objects
Method 4: Implement to_json() method
Method 5: Implement a custom to_json() method
· Conclusion

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Changsin Lee

AI/ML Enthusiast | Software Engineer | ex-Microsoftie | ex-Amazonian