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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2019/04/08 05:23:52 UTC

[GitHub] [airflow] zhongjiajie commented on issue #4779: [WIP][AIRFLOW-3958] Support list tasks as upstream in chain

zhongjiajie commented on issue #4779: [WIP][AIRFLOW-3958] Support list tasks as upstream in chain
URL: https://github.com/apache/airflow/pull/4779#issuecomment-480687872
 
 
   @bcb Thanks for review, I think some validate is nessarary, becase `zip` will use the shorter sequence as it base
   ```python
   >>> a = [1,2,3]
   >>> b = [4,5]
   >>> list(zip(a,b))
   [(1, 4), (2, 5)]  # make user get the wrong dependence.
   ```
   

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