diff -r c59d81b802f8 Lib/test/test_py_compile.py
--- a/Lib/test/test_py_compile.py	Tue Mar 31 16:35:35 2015 +0200
+++ b/Lib/test/test_py_compile.py	Tue Mar 31 18:04:05 2015 +0300
@@ -105,14 +105,15 @@ class PyCompileTests(unittest.TestCase):
         # py_compile foo.bar.py -> __pycache__/foo.cpython-34.pyc
         weird_path = os.path.join(self.directory, 'foo.bar.py')
         cache_path = importlib.util.cache_from_source(weird_path)
-        pyc_path = weird_path + 'c'
+        pyc_path = weird_path + ('c' if __debug__ else 'o')
         head, tail = os.path.split(cache_path)
         penultimate_tail = os.path.basename(head)
         self.assertEqual(
             os.path.join(penultimate_tail, tail),
             os.path.join(
                 '__pycache__',
-                'foo.bar.{}.pyc'.format(sys.implementation.cache_tag)))
+                'foo.bar.{}.py{}'.format(sys.implementation.cache_tag,
+                                         ('c' if __debug__ else 'o'))))
         with open(weird_path, 'w') as file:
             file.write('x = 123\n')
         py_compile.compile(weird_path)