What is Pydantic and how can I use it in my Python projects?

What is Pydantic and how can I use it in my Python projects?

Pydantic is a data validation and settings management library for Python. It uses Python type annotations to validate data and ensure it meets specified types.

Can you give me an example of how to define a model using Pydantic?

Sure! Here's a simple example:

from pydantic import BaseModel

class User(BaseModel):
    id: int
    name: str
    email: str

This defines a User model with three fields: id, name, and email.

How does Pydantic handle data validation?

Pydantic automatically validates the data when you create an instance of a model. If the data doesn't match the expected types, it raises a validation error.

What are some common use cases for Pydantic?

Common use cases include data parsing from APIs, configuration management, and ensuring data integrity in web applications.