[GitHub] [airflow] Taragolis commented on pull request #29494: Fix circular imports when airflow starts

["Taragolis (via GitHub)" <gi...@apache.org>]

Taragolis commented on PR #29494:
URL: https://github.com/apache/airflow/pull/29494#issuecomment-1428915301

   Some time ago I tried to write specific tests for known and repeatable problem with circular imports.
   
   There is couple issues (I guess all could be solved):
   1. Python 3.7 only show as regular ImportError without mentioning that is circular import
   2. Need to run all this kind of tests outside of regular `pytest` environment because everything already imported in the right way. I found a stupid solution - generate python file and execute it in subprocess
   3. If run in subprocess need to mock specific stuff very carefully.


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