fix test_gzip

diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index d28c024d07ffcffe85f57519b2c80b69e5da9075..3493b8dfba6c406a7b0471ee0014527f818ea207 100644 (file)
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -150,7 +150,7 @@ class TestGzip(unittest.TestCase):
     def test_mode(self):
         self.test_write()
         f = gzip.GzipFile(self.filename, 'r')
-        self.assertEqual(f.myfileobj.mode, 'rb')
+        self.assertTrue(f.myfileobj.mode.startswith('r'))
         f.close()
 
     def test_1647484(self):