Pydantic is an open-source Python library used for data validation and settings management using Python type annotations. It helps ensure correctness of data by parsing and validating input, making it especially useful for APIs, configuration, and data-driven applications.

Features of Pydantic:

• Automatic data validation and parsing using Python type hints.
• High performance due to usage of compiled validators under the hood.
• Supports complex nested data structures with detailed error reporting.
• Environment variable parsing for application configuration.
• Seamless integration with popular frameworks like FastAPI.
• Supports custom data types and validators for flexible use cases.

To check the installed version of Pydantic, run these commands in your environment:

$ cd /opt
$ source pydantic-env/bin/activate
$ python3 -c "import pydantic; print(pydantic.__version__)"

Disclaimer: Pydantic is open-source software released under the MIT License. It is developed independently and is not affiliated with any commercial organization. Users should refer to the official documentation for best practices and updates. Use it at your own discretion and ensure it fits your project requirements.