potiuk commented on PR #55894:
URL: https://github.com/apache/airflow/pull/55894#issuecomment-3409977179

   > @potiuk What would be the difference? sys.path will get mangled anyway (if 
used in non-forked env). Are those 3 cases handled in this PR this kind of 
"fire and forget the environment" situation?
   
   Yes. All 3. Which means that if we specifically use it in those 3 places, 
the "sys.path" mangling is only possible there - rather than in random places 
where DagBag is used - accidentally.  Again - if I am not mistaken about 
intention, the thing is that DagBag is used in so many places (for example in 
tests where interpreter is used by multiple tests)  that adding a potentially 
breaking parameter. It's purely "prevent accidental errors" difference.
   
   
   


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