def _build(self):
        try:
            config_module = os.environ[ENV_VAR]
            if not config_module:
                raise KeyError
        except __HOLE__:
            raise ImportError('no config defined.')

        self._config = BrutalConfig(config_module)
        #logging.debug('_config now {0!r}'.format(self._config))
dataset/ETHPy150Open Netflix/brutal/brutal/conf/__init__.py/LazyConfig._build