@@ -25,14 +25,12 @@ def test_open_fd(self):
         self.assertRaisesRegex(ValueError,
             "negative file descriptor", ConIO, -1)
 
-        fd, _ = tempfile.mkstemp()
-        try:
+        with tempfile.TemporaryFile() as tmpfile:
+            fd = tmpfile.fileno()
             # Windows 10: "Cannot open non-console file"
             # Earlier: "Cannot open console output buffer for reading"
             self.assertRaisesRegex(ValueError,
                 "Cannot open (console|non-console file)", ConIO, fd)
-        finally:
-            os.close(fd)
 
         try:
             f = ConIO(0)
 
@@ -0,0 +1,2 @@
+test_winconsoleio doesn't leak a temporary file anymore: use
+tempfile.TemporaryFile() to remove it when the test completes.
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+test_winconsoleio doesn't leak a temporary file anymore: use`
	`2`	`+tempfile.TemporaryFile() to remove it when the test completes.`