Index: xen-4.18.0-testing/tools/python/xen/migration/legacy.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/legacy.py
+++ xen-4.18.0-testing/tools/python/xen/migration/legacy.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/libxc.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/libxc.py
+++ xen-4.18.0-testing/tools/python/xen/migration/libxc.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/libxl.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/libxl.py
+++ xen-4.18.0-testing/tools/python/xen/migration/libxl.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/public.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/public.py
+++ xen-4.18.0-testing/tools/python/xen/migration/public.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/tests.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/tests.py
+++ xen-4.18.0-testing/tools/python/xen/migration/tests.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/verify.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/verify.py
+++ xen-4.18.0-testing/tools/python/xen/migration/verify.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """
Index: xen-4.18.0-testing/tools/python/xen/migration/xl.py
===================================================================
--- xen-4.18.0-testing.orig/tools/python/xen/migration/xl.py
+++ xen-4.18.0-testing/tools/python/xen/migration/xl.py
@@ -1,3 +1,4 @@
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 """