[GitHub] [airflow] dsynkov commented on issue #12985: PythonVirtualenvOperator with provide_context=True does not have 'ti' keyword

[GitBox <gi...@apache.org>]

dsynkov commented on issue #12985:
URL: https://github.com/apache/airflow/issues/12985#issuecomment-818158798


   Sharing a few notes as I've run into this same issue:
   
   * The [docs](https://airflow.apache.org/docs/apache-airflow/stable/howto/operator/python.html#pythonvirtualenvoperator) for `PythonVirtualenvOperator` address this:
   > You can use the op_args and op_kwargs arguments the same way you use it in the PythonOperator. Unfortunately we currently do not support to serialize var and ti / task_instance **due to incompatibilities with the underlying library**. 
   * I'm not sure what the exact "incompatibilities" are, but searching for open issues mentioning `PythonVirtualenvOperator` there is https://github.com/apache/airflow/issues/7870 which addresses using `dill` vs. `cloudpickle` (but doesn't mention how/if this would enable serialization of `ti`, etc.). Anyone have any insight if https://github.com/apache/airflow/issues/7870  is a pre-req to this current issue?
   * Also found this Jira story (https://issues.apache.org/jira/browse/AIRFLOW-2738) that's still open that seems to be addressing the same problem.


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