Python MWAA Airflow 2.2.2 'DAG' object has no attribute 'update_relative'

因此，我将DAG从1.12.15版升级到2.2.2版，并将python从3.8版降级到3.7版(因为MWAA不支持python 3.8).DAG在之前的设置中工作正常，但在MWAA设置中显示此错误:

Broken DAG: [/usr/local/airflow/dags/google_analytics_import.py] Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/airflow/models/baseoperator.py", line 1474, in set_downstream
    self._set_relatives(task_or_task_list, upstream=False, edge_modifier=edge_modifier)
  File "/usr/local/lib/python3.7/site-packages/airflow/models/baseoperator.py", line 1412, in _set_relatives
    task_object.update_relative(self, not upstream)
AttributeError: 'DAG' object has no attribute 'update_relative'

这是一个似乎正在失败的内置功能:

def set_downstream(
        self,
        task_or_task_list: Union[TaskMixin, Sequence[TaskMixin]],
        edge_modifier: Optional[EdgeModifier] = None,
    ) -> None:
        """
        Set a task or a task list to be directly downstream from the current
        task. Required by TaskMixin.
        """
        self._set_relatives(task_or_task_list, upstream=False, edge_modifier=edge_modifier)

下面是我们试图在DAG中运行的代码:

    for report in reports:
        dag << PythonOperator(
            task_id=f"task_{report}",
            python_callable=process,
            op_kwargs={
                "conn": "snowflake_production",
                "table": report,
            },
            provide_context=True,
        )

我认为从Python3.8到3.7的转换导致了这个问题，但我不确定.

有没有人遇到过类似的问题？