From fd6094cdebb5736745d164e0207de2d4cb0b50dc Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Fri, 5 May 2017 09:47:11 +0200
Subject: [PATCH] Relax test timing (bpo-29861) to avoid sporadic failures
 (#1120) (#1472)

(cherry picked from commit 685cdb9acc3fca04a9897d88b89771ddfd50e772)
---
 Lib/test/test_multiprocessing.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index 163c42f1d10..8cc4f5423ac 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -1290,6 +1290,7 @@ class _TestPool(BaseTestCase):
         self.pool.map(identity, objs)
 
         del objs
+        time.sleep(DELTA)  # let threaded cleanup code run
         self.assertEqual(set(wr() for wr in refs), {None})
         # With a process pool, copies of the objects are returned, check
         # they were released too.