marshmallow validates and transforms structured application data with declarative schemas, custom fields, nested objects, and serialization.
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marshmallow validates and transforms structured application data with declarative schemas, custom fields, nested objects, and serialization.
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Pydantic validates structured data using Python type hints, with custom validators, strict typing, serialization, and JSON Schema generation.
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Colander validates and converts structured data using schemas for mappings, sequences, strings, numbers, dates, and custom types.
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