def load_config_data(loader_func, *args, **kwargs):
    optional = kwargs.pop('optional', False)
    try:
        return loader_func(*args, **kwargs)
    except Exception as e:
        log.info(e % "Optional configuration failed: %s")
        if not optional:
            raise
        return {}
dataset/ETHPy150Open dnephin/PyStaticConfiguration/staticconf/loader.py/load_config_data/swapped operands of `%`