dotenv — Environment File Loading

Load .env files into the process environment.

Import

import dotenv

API Reference

Function	Description
dotenv.load(path = ".env") -> int	Load a .env file (ignores missing files)
dotenv.load_or_fail(path = ".env") -> int	Load a .env file (fails if missing)
dotenv.parse(content) -> str	Parse .env content string
dotenv.get(key) -> str	Get an environment variable

.env File Format

DATABASE_URL=postgres://localhost:5432/mydb
API_KEY=sk-1234567890
DEBUG=true

Examples

Load and Use

import dotenv

def main() -> int:
    dotenv.load()  # loads .env from current directory
    let db = dotenv.get("DATABASE_URL")
    let key = dotenv.get("API_KEY")
    print(f"Database: {db}")
    print(f"API Key: {key}")
    0

Custom Path

import dotenv

def main() -> int:
    dotenv.load(".env.production")
    let host = dotenv.get("HOST")
    print(host)
    0