ios.py 文件源码

def _load_config(filename):
    """Load configuration."""
    if not os.path.isfile(filename):
        return {}

    try:
        with open(filename, "r") as fdesc:
            inp = fdesc.read()

        # In case empty file
        if not inp:
            return {}

        return json.loads(inp)
    except (IOError, ValueError) as error:
        _LOGGER.error("Reading config file %s failed: %s", filename, error)
        return None