From 96c132b333984bfead0e027ede0ef1d4b956a08c Mon Sep 17 00:00:00 2001
From: ichuang <ichuang@gmail.com>
Date: Tue, 3 Jul 2012 17:02:01 -0400
Subject: [PATCH] put try around Progress call in capa_module - exception when
 divide by zero

---
 common/lib/xmodule/capa_module.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/common/lib/xmodule/capa_module.py b/common/lib/xmodule/capa_module.py
index 7698c0937e..2c4a9c0465 100644
--- a/common/lib/xmodule/capa_module.py
+++ b/common/lib/xmodule/capa_module.py
@@ -109,7 +109,12 @@ class Module(XModule):
         score = d['score']
         total = d['total']
         if total > 0:
-            return Progress(score, total)
+            try:
+                return Progress(score, total)
+            except Exception as err:
+                if self.DEBUG:
+                    return None
+                raise
         return None