pydantic ☆

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Description:
Data validation using Python type hints

Type: Formula | Latest Version: 2.12.5@0 | Tracked Since: Nov 26, 2025

Links: Homepage | @pydantic | formulae.brew.sh

Category: Developer tools

Tags: python validation json data-modeling type-hints

Install: brew install pydantic

About:
Pydantic is a Python data validation library that uses Python type hints to define data models. It enforces type hints at runtime, provides clear error messages when validation fails, and serializes data into various formats like JSON. Its core value is reducing boilerplate code for data parsing and validation, making it essential for building reliable APIs and data pipelines.

Key Features:

Type-safe data validation using standard Python type hints
Automatic data parsing and serialization (e.g., JSON, dict)
Detailed, user-friendly error reporting
High performance via Rust-based core (Pydantic V2)
Extensible via custom validators and data types

Use Cases:

Validating and parsing API request/response payloads (e.g., in FastAPI)
Managing application configuration settings
Structuring and cleaning data for data science and ML pipelines

Alternatives:

attrs – attrs is a library for creating class boilerplate, often paired with cattrs for serialization, whereas Pydantic bundles validation and serialization into one package using type hints.
Marshmallow – Marshmallow is an older ORM/ODM-agnostic library that requires explicit field definitions, while Pydantic leverages Python's native type hints for a more concise syntax.

Version History

Detected	Version	Rev	Change	Commit
Nov 26, 2025 11:26pm		0	VERSION_BUMP	d283461b
Nov 6, 2025 5:23pm		0	NEW	c0b3b7d9