Fix file upload demo on Python 2.

diff --git a/demos/file_upload/file_uploader.py b/demos/file_upload/file_uploader.py
index 025c2159e0ad6476e7e9607813c31c7ee912b525..5f13fcb61f999c745cf540e23a0fc7ad4677b671 100644 (file)
--- a/demos/file_upload/file_uploader.py
+++ b/demos/file_upload/file_uploader.py
@@ -9,6 +9,7 @@ single file without encoding.
 See also file_receiver.py in this directory, a server that receives uploads.
 """
 
+from __future__ import print_function
 import mimetypes
 import os
 import sys