How can I use Pydantic for managing application settings?

How can I use Pydantic for managing application settings?

You can use Pydantic to create a settings model that validates and loads your configuration from environment variables or files.

Can you show me a simple example of a Pydantic settings model?

Sure! Here's a basic example:

from pydantic import BaseSettings

class Settings(BaseSettings):
    app_name: str
    admin_email: str
    debug: bool = False

    class Config:
        env_file = '.env'

settings = Settings()
print(settings.app_name)

What if I want to add default values for some settings?

You can set default values directly in the class definition, like debug: bool = False. Pydantic will use these if no value is provided.

How do I load settings from a JSON file instead of environment variables?

You can override the Config class to specify a different source. For JSON, you might need to read the file and pass the data to the model.