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-rw-r--r--Lib/test/test_socket.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 9ba391e..e745502 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -1384,6 +1384,10 @@ class UnbufferedFileObjectClassTestCase(FileObjectClassTestCase):
self.evt1.set()
self.evt2.wait(1.0)
first_seg = self.read_file.read(len(self.read_msg) - 3)
+ if first_seg is None:
+ # Data not arrived (can happen under Windows), wait a bit
+ time.sleep(0.5)
+ first_seg = self.read_file.read(len(self.read_msg) - 3)
buf = bytearray(10)
n = self.read_file.readinto(buf)
self.assertEqual(n, 3)