lesson_check: get_val is a static method

diff --git a/bin/lesson_check.py b/bin/lesson_check.py
index 6aa1c2c9b03b2a4d3792762f86665f8d64f1a18e..3e07f67971f131d06c182841b261ef5327498731 100755 (executable)
--- a/bin/lesson_check.py
+++ b/bin/lesson_check.py
@@ -399,7 +399,8 @@ class CheckBase(object):
                     return False
         return True
 
-    def get_val(self, node, *chain):
+    @staticmethod
+    def get_val(node, *chain):
         """Get value one or more levels down."""
 
         curr = node