diff --git a/test/rsrc/convert_stub.py b/test/rsrc/convert_stub.py
index aa0d2ea72..747493134 100755
--- a/test/rsrc/convert_stub.py
+++ b/test/rsrc/convert_stub.py
@@ -4,6 +4,7 @@
 a specified text tag.
 """
 
+from __future__ import division, absolute_import, print_function
 import sys
 
 
diff --git a/test/test_convert.py b/test/test_convert.py
index ac3a50c77..9e3c106bd 100644
--- a/test/test_convert.py
+++ b/test/test_convert.py
@@ -39,7 +39,7 @@ class TestHelper(helper.TestHelper):
 
         # A Python script that copies the file and appends a tag.
         stub = os.path.join(_common.RSRC, 'convert_stub.py')
-        return u'python {} $source $dest {}'.format(stub, tag)
+        return u"python '{}' $source $dest {}".format(stub, tag)
 
     def assertFileTag(self, path, tag):  # noqa
         """Assert that the path is a file and the files content ends with `tag`.