diff -r 639e0f1e8ffa -r ff3be5a325bc tests/seq.py
--- a/tests/seq.py	Mon Feb 29 17:02:56 2016 +0900
+++ b/tests/seq.py	Sat Apr 02 17:28:35 2016 +0300
@@ -7,6 +7,7 @@
 #   seq START STOP        [START, STOP] stepping by 1
 #   seq START STEP STOP   [START, STOP] stepping by STEP
 
+from __future__ import absolute_import
 import sys
 
 start = 1