From 358545833fb489ff6e1af83b00cc060c9aa5ba7f Mon Sep 17 00:00:00 2001
From: Helmut Merz <helmutm@cy55.de>
Date: Thu, 29 May 2014 11:32:46 +0200
Subject: [PATCH] allow for non-numeric values which will be ignored in
 calculations

---
 knowledge/survey/questionnaire.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/knowledge/survey/questionnaire.py b/knowledge/survey/questionnaire.py
index 5b698e4..a12d519 100644
--- a/knowledge/survey/questionnaire.py
+++ b/knowledge/survey/questionnaire.py
@@ -98,7 +98,7 @@ class Response(object):
             score = scoreMax = 0.0
             for qu in qugroup.questions:
                 value = self.values.get(qu)
-                if value is None:
+                if value is None or isinstance(value, basestring):
                     continue
                 if qu.revertAnswerOptions:
                     value = qu.answerRange - value - 1