Index: Lib/test/test_compileall.py
===================================================================
--- Lib/test/test_compileall.py	(revision 86692)
+++ Lib/test/test_compileall.py	(working copy)
@@ -220,10 +220,12 @@
         self.assertTrue(os.path.exists(imp.cache_from_source(sourcefile)))
 
     def test_quiet(self):
-        noise = subprocess.getoutput('{} -m compileall {}'.format(
-                                     sys.executable, self.pkgdir))
-        quiet = subprocess.getoutput(('{} -m compileall -f -q {}'.format(
-                                     sys.executable, self.pkgdir)))
+        noise = subprocess.check_output(
+                [sys.executable, '-m', 'compileall', self.pkgdir],
+                stderr=subprocess.STDOUT)
+        quiet = subprocess.check_output(
+                [sys.executable, '-m', 'compileall', '-f', '-q', self.pkgdir],
+                stderr=subprocess.STDOUT)
         self.assertGreater(len(noise), len(quiet))
 
     def test_regexp(self):