[GitHub] [airflow] mik-laj commented on a change in pull request #6950: [AIRFLOW-6392] Remove cyclic dependency baseoperator <-> helpers

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mik-laj commented on a change in pull request #6950: [AIRFLOW-6392] Remove cyclic dependency baseoperator <-> helpers
URL: https://github.com/apache/airflow/pull/6950#discussion_r361877266
 
 

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 File path: airflow/utils/helpers.py
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 @@ -142,83 +135,6 @@ def as_flattened_list(iterable):
     return [e for i in iterable for e in i]
 
 
-def chain(*tasks):
 
 Review comment:
   This is a very sad change because it is not backward compatible.  One release from the 1.10+ series tried to delete these functions. Users were very sad when this happened.  Maybe we should move all the other functions to a separate file, and leave these functions in the old place?

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