diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 22933db..0d1ac87 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -117,6 +117,8 @@
         # .stdin is None when not redirected
         p = subprocess.Popen([sys.executable, "-c", 'print "banana"'],
                          stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        self.addCleanup(p.stdout.close)
+        self.addCleanup(p.stderr.close)
         p.wait()
         self.assertEqual(p.stdin, None)
 
@@ -127,6 +129,8 @@
                              'test of stdout in a different '
                              'process ..."'],
                              stdin=subprocess.PIPE, stderr=subprocess.PIPE)
+        self.addCleanup(p.stdin.close)
+        self.addCleanup(p.stderr.close)
         p.wait()
         self.assertEqual(p.stdout, None)
 
@@ -134,6 +138,8 @@
         # .stderr is None when not redirected
         p = subprocess.Popen([sys.executable, "-c", 'print "banana"'],
                          stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+        self.addCleanup(p.stdout.close)
+        self.addCleanup(p.stdin.close)
         p.wait()
         self.assertEqual(p.stderr, None)
 
@@ -194,6 +200,7 @@
         p = subprocess.Popen([sys.executable, "-c",
                           'import sys; sys.stdout.write("orange")'],
                          stdout=subprocess.PIPE)
+        self.addCleanup(p.stdout.close)
         self.assertEqual(p.stdout.read(), "orange")
 
     def test_stdout_filedes(self):
@@ -222,6 +229,7 @@
         p = subprocess.Popen([sys.executable, "-c",
                           'import sys; sys.stderr.write("strawberry")'],
                          stderr=subprocess.PIPE)
+        self.addCleanup(p.stderr.close)
         self.assertStderrEqual(p.stderr.read(), "strawberry")
 
     def test_stderr_filedes(self):
@@ -254,6 +262,7 @@
                           'sys.stderr.write("orange")'],
                          stdout=subprocess.PIPE,
                          stderr=subprocess.STDOUT)
+        self.addCleanup(p.stdout.close)
         self.assertStderrEqual(p.stdout.read(), "appleorange")
 
     def test_stdout_stderr_file(self):
@@ -289,6 +298,7 @@
                           'sys.stdout.write(os.getcwd())'],
                          stdout=subprocess.PIPE,
                          cwd=tmpdir)
+        self.addCleanup(p.stdout.close)
         normcase = os.path.normcase
         self.assertEqual(normcase(p.stdout.read()), normcase(tmpdir))
 
@@ -300,6 +310,7 @@
                           'sys.stdout.write(os.getenv("FRUIT"))'],
                          stdout=subprocess.PIPE,
                          env=newenv)
+        self.addCleanup(p.stdout.close)
         self.assertEqual(p.stdout.read(), "orange")
 
     def test_communicate_stdin(self):
@@ -415,6 +426,7 @@
                           'sys.stdout.write("\\nline6");'],
                          stdout=subprocess.PIPE,
                          universal_newlines=1)
+        self.addCleanup(p.stdout.close)
         stdout = p.stdout.read()
         if hasattr(file, 'newlines'):
             # Interpreter with universal newline support
@@ -639,6 +651,7 @@
                               "sys.stdout.write(os.getenv('FRUIT'))"],
                              stdout=subprocess.PIPE,
                              preexec_fn=lambda: os.putenv("FRUIT", "apple"))
+        self.addCleanup(p.stdout.close)
         self.assertEqual(p.stdout.read(), "apple")
 
     def test_args_string(self):
@@ -672,6 +685,7 @@
         p = subprocess.Popen(["echo $FRUIT"], shell=1,
                              stdout=subprocess.PIPE,
                              env=newenv)
+        self.addCleanup(p.stdout.close)
         self.assertEqual(p.stdout.read().strip(), "apple")
 
     def test_shell_string(self):
@@ -681,6 +695,7 @@
         p = subprocess.Popen("echo $FRUIT", shell=1,
                              stdout=subprocess.PIPE,
                              env=newenv)
+        self.addCleanup(p.stdout.close)
         self.assertEqual(p.stdout.read().strip(), "apple")
 
     def test_call_string(self):
@@ -712,6 +727,7 @@
         for sh in shells:
             p = subprocess.Popen("echo $0", executable=sh, shell=True,
                                  stdout=subprocess.PIPE)
+            self.addCleanup(p.stdout.close)
             self.assertEqual(p.stdout.read().strip(), sh)
 
     def _kill_process(self, method, *args):