Remove python2 support from tests/utils scripts
diff --git a/test/shaping/run-tests.py b/test/shaping/run-tests.py
index 26853e4..188badf 100755
--- a/test/shaping/run-tests.py
+++ b/test/shaping/run-tests.py
@@ -1,6 +1,4 @@
-#!/usr/bin/env python
-
-from __future__ import print_function, division, absolute_import
+#!/usr/bin/env python3
 
 import sys, os, subprocess, hashlib, tempfile, shutil