Avoid SyntaxError in script using print function
diff --git a/Tools/scripts/byext.py b/Tools/scripts/byext.py
index 138d8dd..ca18776 100755
--- a/Tools/scripts/byext.py
+++ b/Tools/scripts/byext.py
@@ -2,6 +2,8 @@
 
 """Show file statistics by extension."""
 
+from __future__ import print_function
+
 import os
 import sys