Quick Answer
Custom object serialization: implement __getstate__ and __setstate__ for pickle (control what's pickled). For JSON: implement a custom JSONEncoder subclass with default() method, or convert to dict before json.dumps(). dataclasses.asdict() for dataclasses. marshmallow Schema for validation + serialization. attrs library with converters. Keep serialized format stable for versioned data.
Answer
Use json.dumps() with custom default handlers. pickle supports full object serialization. Avoid untrusted pickle data for security.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
