[GitHub] [airflow] subuserzero commented on issue #29366: default_args feature incompatible with Dynamic Task Mapping

["subuserzero (via GitHub)" <gi...@apache.org>]

subuserzero commented on issue #29366:
URL: https://github.com/apache/airflow/issues/29366#issuecomment-1442444585

   > **As a quick potential workaround**, you may wrap a mapped operator into a `TaskGroup` with `default_args={}`, because here is what [docs say](https://airflow.apache.org/docs/apache-airflow/2.5.1/core-concepts/dags.html#taskgroups):
   > 
   > > `TaskGroup` also supports `default_args` like DAG, it will **overwrite the `default_args` in DAG level**
   > 
   > I have _not_ tested myself but accidentally noticed this in the documentation, so if you have a chance to try it out, please let me know if it works.
   
   That did not seem to work for me, but replacing the `default_args` of the DAG inside the task-group definition with an empty dict seems to get past the TypeError:
   
       @task_group(group_id='foo_group', dag=<dag-ref>)
       def foo_group():
           dag.default_args = {}
           ....
   


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