What are Pydantic settings and how do I use them?

What are Pydantic settings and how do I use them?

Pydantic settings are a way to manage application configuration using Pydantic models. They allow you to define settings with type validation and default values.

Can you show me a simple example of how to define a settings class?

Sure! Here's a basic example:

from pydantic import BaseSettings

class Settings(BaseSettings):
    app_name: str = 'My App'
    admin_email: str

settings = Settings()  # Load from environment variables or defaults

How can I load settings from a .env file?

You can use the dotenv package to load environment variables from a .env file. Just ensure you have it installed and then use it like this:

from pydantic import BaseSettings
from dotenv import load_dotenv
import os

load_dotenv()  # Load environment variables from .env file

class Settings(BaseSettings):
    app_name: str = 'My App'
    admin_email: str

settings = Settings()  # Now it will read from the .env file