bpo-31448, test_poplib: Fix ResourceWarning (#3542)

Call POP3.close(), don't close close directly the sock attribute.

diff --git a/Lib/test/test_poplib.py b/Lib/test/test_poplib.py
index d7a26bc14c9197764ce3b7dcfacde2051d088cdd..721ea252011964288438b87355c99b8d80c3770a 100644 (file)
--- a/Lib/test/test_poplib.py
+++ b/Lib/test/test_poplib.py
@@ -488,7 +488,7 @@ class TestTimeouts(TestCase):
         finally:
             socket.setdefaulttimeout(None)
         self.assertEqual(pop.sock.gettimeout(), 30)
-        pop.sock.close()
+        pop.close()
 
     def testTimeoutNone(self):
         self.assertIsNone(socket.getdefaulttimeout())
@@ -498,12 +498,12 @@ class TestTimeouts(TestCase):
         finally:
             socket.setdefaulttimeout(None)
         self.assertIsNone(pop.sock.gettimeout())
-        pop.sock.close()
+        pop.close()
 
     def testTimeoutValue(self):
         pop = poplib.POP3(HOST, self.port, timeout=30)
         self.assertEqual(pop.sock.gettimeout(), 30)
-        pop.sock.close()
+        pop.close()
 
 
 def test_main():