from dynaconf import Dynaconf

settings = Dynaconf(
    envvar_prefix=False,
    environments=True,
    env_switcher="ENV_FOR_DYNACONF",
    settings_files=["settings.toml"],
    load_dotenv=True
)

# `envvar_prefix` = export envvars with `export DYNACONF_FOO=bar`.
# `settings_files` = Load these files in the order.