diff -ur xxdiff-4.0.1.orig/setup.py xxdiff-4.0.1/setup.py
--- xxdiff-4.0.1.orig/setup.py	2016-05-15 22:55:57.000000000 +0000
+++ xxdiff-4.0.1/setup.py	2018-08-01 05:14:56.672800089 +0000
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 #
 # Install script for xxdiff Python code.
 #