Pydantic Validation

A guide to validating and serializing data with Pydantic models for type-safe Python applications.

Usage

Ask about Pydantic models, validation, serialization, settings, or data transformation.

Examples

• "Create a Pydantic model with custom validators"
• "How do I handle nested model validation?"
• "Use Pydantic for settings management with .env files"

Guidelines

• Use Pydantic v2 for significantly better performance
• Define strict types for critical data validation
• Use model_validator for cross-field validation logic
• Leverage computed fields for derived properties
• Use model_config for serialization customization