Add a @task.stub to allow tasks in other languages to be defined in dags
#56055
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… dags As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
shahar1
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Comment regarding test and docs. Rest looks good!
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Meant to approve, not comment above
ashb
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Sep 24, 2025
providers/standard/src/airflow/providers/standard/decorators/stub.py
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providers/standard/src/airflow/providers/standard/decorators/stub.py
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
This was referenced Sep 25, 2025
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 2, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 3, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 4, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
abdulrahman305 bot
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Oct 5, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
abdulrahman305 bot
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Oct 5, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 7, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 8, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 9, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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Oct 11, 2025
… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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… dags (apache#56055) As of today, even with Edge Executor and TaskSDK, Dags must be defined in Python. However if we want tasks to run in other languages we need "something" we can put in the python dag that is an operator. This is that. It's implementation is quite simple -- it checks the function is empty (because if it's not someone might mistakenly think it would run the function), and then _if_ it ever runs, it raises an exception.
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As of today, even with Edge Executor and TaskSDK, Dags must be defined in
Python. However if we want tasks to run in other languages we need "something"
we can put in the python dag that is an operator. This is that.
It's implementation is quite simple -- it checks the function is empty
(because if it's not someone might mistakenly think it would run the
function), and then if it ever runs, it raises an exception.
Docs for this will be included in the Go example itself, so it is purposefully not included here.
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