setup config.py

Nihal — Sun, 05 Apr 2026 16:13:42 +0000

Every project starts the same way…
You hardcode a few values, sprinkle some os.getenv() calls, and tell yourself “I’ll clean this up later.”

Later never comes.

Instead, just do this 👇

Install package:
pip install pydantic-settings

config.py

from pydantic_settings import BaseSettings

class Settings(BaseSettings):
    APP_ENV: str = "development"
    APP_TITLE: str = "App Title"
    APP_VERSION: str = "1.0.0"
    FRONTEND_URL: str = "http://localhost:5173"
    SECRET_KEY: str
    CORS_ORIGINS: list[str] = []

    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"
        case_sensitive = True
        extra = "ignore"


settings = Settings()

Why This Is Actually Nice

You get defaults, so your app runs instantly
You get env overrides, so prod doesn’t break
You get type safety, no weird bugs later

How You Use It

import config.settings

print(settings.APP_ENV)

Boom. Done.

DEV Community: Nihal

setup config.py

Why This Is Actually Nice

How You Use It