From 82e9f32f17bfff32041d3f3825f1d8fbc5e76929 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@dropbox.com>
Date: Wed, 13 Nov 2013 11:08:34 -0800
Subject: asyncio: Temporary fix by Victor Stinner for issue 19566.

---
 Lib/asyncio/unix_events.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py
index f4cf6e7..9fced33 100644
--- a/Lib/asyncio/unix_events.py
+++ b/Lib/asyncio/unix_events.py
@@ -593,11 +593,12 @@ class FastChildWatcher(BaseChildWatcher):
     (O(1) each time a child terminates).
     """
     def __init__(self, loop):
-        super().__init__(loop)
-
         self._lock = threading.Lock()
         self._zombies = {}
         self._forks = 0
+        # Call base class constructor last because it calls back into
+        # the subclass (set_loop() calls _do_waitpid()).
+        super().__init__(loop)
 
     def close(self):
         super().close()
-- 
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