Ensure __exit__ is called in decorator context managers #38383
Merged
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In #36800 author fixed zombie scheduler issue arising from context manager exit not being called, thus sub process not getting terminated. It was fixed by explicitly calling the
close
function on an ExitStack-managed context manager. Simpler / better / cleaner / more standard solution is to "fix" the underlying context managers by wrapping the yield in a try / finally.cc @joaopamaral