Method close

catboost/python-package/catboost/eval/_fold_storage.py:122–127

(self)

        return self._file is not None

    def close(self):
        if self._file is None:
            raise CatBoostError("Trying to close None {}".format(self._file_path))

        self._file.close()
        self._file = None

    def delete(self):
        if self._file is not None: