def previous_error(self):
        warnings.warn("previous_error() is deprecated",
                      DeprecationWarning, stacklevel=2)

        error = self.command("getpreverror")
        if error.get("err", 0) is None:
            return None
        return error
Save the DAG to a filename pulled out of a file dialog.
dataset/ETHPy150Open mongodb/mongo-python-driver/pymongo/database.py/Database.previous_error--crossover with--dataset/ETHPy150Open andrew-gardner/dependsworkflow/depends/depends_main_window.py/MainWindow.saveAs