def __get_directory_keys(self, path):
        try:
            return [k.name for k in self.bucket.list(path, '/') if
                    k.name.endswith('/')]
        except __HOLE__:
            return []
dataset/ETHPy150Open Dwolla/arbalest/arbalest/pipeline/__init__.py/S3SortedDataSources.__get_directory_keys