- If an exception view was registered through the legacy

  ``set_notfound_view`` or ``set_forbidden_view`` APIs, the context
  sent to the view was incorrect (could be ``None`` inappropriately).

3 files changed, 13 insertions, 3 deletions

diff --git a/CHANGES.txt b/CHANGES.txt
index 72b560e85..695aca255 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,16 @@
 Next version
 ============
 
+Bug Fixes
+---------
+
+- If an exception view was registered through the legacy
+  ``set_notfound_view`` or ``set_forbidden_view`` APIs, the context
+  sent to the view was incorrect (could be ``None`` inappropriately).
+
+Errata
+------
+
 - A prior changelog entry asserted that the ``INewResponse`` event was
   not sent to listeners if the response was not "valid" (if a view or
   renderer returned a response object that did not have a
diff --git a/repoze/bfg/tests/test_view.py b/repoze/bfg/tests/test_view.py
index 18a46a205..e5adc8de1 100644
--- a/repoze/bfg/tests/test_view.py
+++ b/repoze/bfg/tests/test_view.py
@@ -450,7 +450,7 @@ def make_view(response):
     return view
 
 class DummyRequest:
-    pass
+    exception = None
 
 class DummyResponse:
     status = '200 OK'
diff --git a/repoze/bfg/view.py b/repoze/bfg/view.py
index 2a154df87..c5fd60623 100644
--- a/repoze/bfg/view.py
+++ b/repoze/bfg/view.py
@@ -454,7 +454,7 @@ def default_exceptionresponse_view(context, request):
         # backwards compat for an exception response view registered via
         # config.set_notfound_view or config.set_forbidden_view
         # instead of as a proper exception view
-        context = getattr(request, 'exception', context)
+        context = request.exception or context
     return context
 
 class AppendSlashNotFoundViewFactory(object):
@@ -502,7 +502,7 @@ class AppendSlashNotFoundViewFactory(object):
         if not isinstance(context, Exception):
             # backwards compat for an append_notslash_view registered via
             # config.set_notfound_view instead of as a proper exception view
-            context = getattr(request, 'exception', None)
+            context = request.exception
         path = request.environ.get('PATH_INFO', '/')
         registry = request.registry
         mapper = registry.queryUtility(IRoutesMapper)