diff -r f2af2a655868 -r 245644bfcd24 ConfigTreeNode.py
--- a/ConfigTreeNode.py	Fri Mar 22 13:26:31 2019 +0100
+++ b/ConfigTreeNode.py	Fri Mar 22 13:45:19 2019 +0100
@@ -37,6 +37,7 @@
 import types
 import shutil
 from operator import add
+from functools import reduce
 from builtins import str as text
 from past.builtins import execfile