__init__.py 文件源码

def config_per_platform(config: ConfigType,
                        domain: str) -> Iterable[Tuple[Any, Any]]:
    """Generator to break a component config into different platforms.

    For example, will find 'switch', 'switch 2', 'switch 3', .. etc
    """
    for config_key in extract_domain_configs(config, domain):
        platform_config = config[config_key]

        if not platform_config:
            continue
        elif not isinstance(platform_config, list):
            platform_config = [platform_config]

        for item in platform_config:
            try:
                platform = item.get(CONF_PLATFORM)
            except AttributeError:
                platform = None

            yield platform, item