pydantic

Pydantic V2's core is rewritten in Rust, offering significant speed improvements for validation and parsing, as highlighted in the README's performance focus.

It leverages Python's native type annotations to define schemas, providing a clean, intuitive validation approach without extra DSLs, as shown in the simple example.

Works seamlessly with linters and IDEs for autocompletion and error detection, making development faster and less error-prone, as emphasized in the philosophy.

Handles serialization to/from JSON and dicts effortlessly, and includes settings management for environment variables, simplifying configuration in complex projects.