Index: Lib/socket.py
===================================================================
--- Lib/socket.py	(révision 68329)
+++ Lib/socket.py	(copie de travail)
@@ -239,9 +239,11 @@
         if self.closed:
             return
         io.RawIOBase.close(self)
+        self._sock._decref_socketios()
 
     def __del__(self):
-        self._sock._decref_socketios()
+        if not self.closed:
+            self._sock._decref_socketios()
 
 
 def getfqdn(name=''):
Index: Lib/test/test_socket.py
===================================================================
--- Lib/test/test_socket.py	(révision 68329)
+++ Lib/test/test_socket.py	(copie de travail)
@@ -829,6 +829,14 @@
         msg = self.serv_file.read()
         self.assertEqual(msg, MSG)
 
+    def testRealClose(self):
+        self.serv_file.close()
+        self.cli_conn.close()
+        self.assertEquals(self.cli_conn.fileno(), -1)
+
+    def _testRealClose(self):
+        pass
+
     def _testCloseAfterMakefile(self):
         self.cli_file.write(MSG)
         self.cli_file.flush()