FastAPI读取生产或测试环境配置文件

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    print(os.environ.get('PYTHONUNBUFFERED'))
    print(os.environ.get('ENVTYPE'))

    env_type = os.environ.get("ENVTYPE")
    if env_type == "prod":
        config_file = "prod.env"
    elif env_type == "test":
        config_file = "test.env"

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from pydantic_settings import BaseSettings

class Settings(BaseSettings):
    REDIS_URL: str
    MYSQL_DATABASE_URL: str
    GRIDFS_URL: str
    DEBUG: bool

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REDIS_URL="redis://127.0.0.1:6379/0?encoding=utf-8"
MYSQL_DATABASE_URL = "mysql+pymysql://root:111111@127.0.0.1:3306/mydatabase?charset=utf8mb4"
GRIDFS_URL="mongodb://localhost:27017/"
DEBUG=True