X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0b8673b62cd9717fcf7e3bbb608ae07018093d6f..b13876638cf57b400bd59513a0a1811b3d2993a1:/sdk/python/tests/arvados_testutil.py

diff --git a/sdk/python/tests/arvados_testutil.py b/sdk/python/tests/arvados_testutil.py
index ebf6297c7c..21b3f15dc6 100644
--- a/sdk/python/tests/arvados_testutil.py
+++ b/sdk/python/tests/arvados_testutil.py
@@ -1,3 +1,7 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 from future import standard_library
 standard_library.install_aliases()
 from builtins import str
@@ -20,9 +24,10 @@ import tempfile
 import unittest
 
 if sys.version_info >= (3, 0):
-    from io import StringIO
+    from io import StringIO, BytesIO
 else:
     from cStringIO import StringIO
+    BytesIO = StringIO
 
 # Use this hostname when you want to make sure the traffic will be
 # instantly refused.  100::/64 is a dedicated black hole.