Index: Lib/test/test_asyncore.py
===================================================================
--- Lib/test/test_asyncore.py	(revision 66157)
+++ Lib/test/test_asyncore.py	(working copy)
@@ -389,6 +389,7 @@
         def test_recv(self):
             fd = os.open(TESTFN, os.O_RDONLY)
             w = asyncore.file_wrapper(fd)
+            os.close(fd)
 
             self.assertNotEqual(w.fd, fd)
             self.assertNotEqual(w.fileno(), fd)
@@ -402,6 +403,7 @@
             d2 = "I want to buy some cheese."
             fd = os.open(TESTFN, os.O_WRONLY | os.O_APPEND)
             w = asyncore.file_wrapper(fd)
+            os.close(fd)
 
             w.write(d1)
             w.send(d2)