From 58d19b2d4f737c8b438c90e76fd3d5f6ced14cf4 Mon Sep 17 00:00:00 2001
From: Andrew Wason <rectalogic@rectalogic.com>
Date: Tue, 23 Apr 2013 10:55:17 -0400
Subject: [PATCH] Status error responses don't always have a message.

---
 src/saml2/response.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/saml2/response.py b/src/saml2/response.py
index f4111bb..9d5acc4 100644
--- a/src/saml2/response.py
+++ b/src/saml2/response.py
@@ -327,9 +327,12 @@ class StatusResponse(object):
                         status.status_code.status_code.value]
                 else:
                     excep = StatusError
+                if status.status_message:
+                    msg = status.status_message.text
+                else:
+                    msg = "Unknown error"
                 raise excep(
-                    "%s from %s" % (status.status_message.text,
-                                    status.status_code.value,))
+                    "%s from %s" % (msg, status.status_code.value,))
         return True
 
     def issue_instant_ok(self):