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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2019/10/26 06:21:41 UTC

[GitHub] [airflow] dstandish commented on issue #5857: [AIRFLOW-5251] add missing typing-extensions dep for py37

dstandish commented on issue #5857: [AIRFLOW-5251] add missing typing-extensions dep for py37
URL: https://github.com/apache/airflow/pull/5857#issuecomment-546574664
 
 
   It seems this may be causing a problem with alembic.  Since you run alembic from `<root>/airflow` directory, when it tries to import `typing_extensions`, it then tries to open `typing`, which resolves to this typing module and not the actual one.
   
   That's probably confusing, but basically if I run `alembic revision -m "something"` I get import error from tying module.
   
   If I run from repo root (specifying config file and changing `script_location` I don't get this error.  (i get `ERROR - Multiple heads are present;`)

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