def load_config(filename):
    """ Read config file specified by `filename`
    
    Parameters
    ----------
    filename : str
        Description of filename
    """
    package_path = ding0.__path__[0]
    FILE = path.join(package_path, 'config', filename)

    try:
        cfg.read(FILE)
        global _loaded
        _loaded = True
    except:
        logger.exception("configfile not found.")