Update popen_forkserver.py

geryogam · web-flow · commit 590f44643e50 · 2022-03-05T23:35:07.000+01:00
diff --git a/Lib/multiprocessing/popen_forkserver.py b/Lib/multiprocessing/popen_forkserver.py
@@ -53,7 +53,7 @@ def _launch(self, process_obj):
         # parent process used by the child process.
         _parent_w = os.dup(w)
         self.finalizer = util.Finalize(self, util.close_fds,
-                                       (_parent_w, self.sentinel))
+                                       (_parent_w, self.sentinel))._key
         with open(w, 'wb', closefd=True) as f:
             f.write(buf.getbuffer())
         self.pid = forkserver.read_signed(self.sentinel)
