[issue31699] Deadlocks in `concurrent.futures.ProcessPoolExecutor` with pickling error

Antoine Pitrou added the comment: This non-trivial issue has been fixed now, thanks to Thomas' patch. Thank you Thomas! -- resolution: -> fixed stage: patch review -> resolved status: open -> closed type: -> behavior ___ Python tracker

[issue31699] Deadlocks in `concurrent.futures.ProcessPoolExecutor` with pickling error

Antoine Pitrou added the comment: New changeset 94459fd7dc25ce19096f2080eb7339497d319eb0 by Antoine Pitrou (Thomas Moreau) in branch 'master': bpo-31699 Deadlocks in `concurrent.futures.ProcessPoolExecutor` with pickling error (#3895) https://github.com/python/cpython/commit/94459fd7dc25ce190

[issue31699] Deadlocks in `concurrent.futures.ProcessPoolExecutor` with pickling error

Change by Thomas Moreau : -- keywords: +patch pull_requests: +4218 stage: -> patch review ___ Python tracker ___ ___ Python-bugs-lis

[issue31699] Deadlocks in `concurrent.futures.ProcessPoolExecutor` with pickling error

New submission from Thomas Moreau : When using `concurrent.futures.ProcessPoolExecutor` with objects that are not picklable or unpicklable, several situations results in a deadlock, with the interpreter freezed. This is the case for different scenario, for instance these three : https://gist.