--- a/test.py	Wed Aug 10 22:11:50 2016 +0800
+++ b/test.py	Wed Aug 10 22:25:43 2016 +0800
@@ -17,7 +17,8 @@
     def test_index(self):
         response = self.c.get('/')
         self.assertIn('Fruit Bar', response.data)
-        self.assertRegexpMatches(response.data, 'bundles/fruitbar\.[0-9a-f]+\.js')
+        bundle_re = 'bundles/fruitbar\.[0-9a-f]+\.js'
+        self.assertRegexpMatches(response.data, bundle_re)
 
 
 class ResourceTestCase(BaseTestCase):