--- a/rollbot.py	Sun May 15 11:34:28 2016 +0800
+++ b/rollbot.py	Sun May 15 11:38:32 2016 +0800
@@ -10,8 +10,8 @@
 
 
 if sys.version_info < (3, 0):
-    reload(sys)
-    sys.setdefaultencoding('utf8')
+    from sleekxmpp.util.misc_ops import setdefaultencoding
+    setdefaultencoding('utf8')
 
 
 class Command(object):