From 331966be70c371b268a4fcce9e97280cd869f137 Mon Sep 17 00:00:00 2001 From: Jakub Kulik Date: Mon, 15 Mar 2021 08:49:28 +0100 Subject: [PATCH] Fix dictionary iteration error in _ExecutorManagerThread [Thomas: Taken from upstream pull request https://github.com/python/cpython/pull/24868, which is aimed at fixing https://bugs.python.org/issue43498] Signed-off-by: Thomas Petazzoni --- Lib/concurrent/futures/process.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Lib/concurrent/futures/process.py b/Lib/concurrent/futures/process.py index 90bc98bf2ec..e3b36dff572 100644 --- a/Lib/concurrent/futures/process.py +++ b/Lib/concurrent/futures/process.py @@ -373,7 +373,7 @@ class _ExecutorManagerThread(threading.Thread): assert not self.thread_wakeup._closed wakeup_reader = self.thread_wakeup._reader readers = [result_reader, wakeup_reader] - worker_sentinels = [p.sentinel for p in self.processes.values()] + worker_sentinels = [p.sentinel for p in self.processes.copy().values()] ready = mp.connection.wait(readers + worker_sentinels) cause = None -- 2.31.1