diff options
| -rw-r--r-- | Lib/concurrent/futures/process.py | 2 |
1 files changed, 1 insertions, 1 deletions
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 |