[py3k] Fix raise with embedded traceback

python 3 removed the raise syntax with 3 expressions.

1 files changed, 6 insertions, 2 deletions

diff --git a/registry.py b/registry.py
index 689f1f1..24b5a78 100644
--- a/registry.py
+++ b/registry.py
@@ -248,7 +248,9 @@ class Registry(dict):
         try:
             return super(Registry, self).__getitem__(name)
         except KeyError:
-            raise ObjectNotFound(name), None, sys.exc_info()[-1]
+            exc = ObjectNotFound(name)
+            exc.__traceback__ = sys.exc_info()[-1]
+            raise exc
 
     @classmethod
     def objid(cls, obj):
@@ -555,7 +557,9 @@ class RegistryStore(dict):
         try:
             return super(RegistryStore, self).__getitem__(name)
         except KeyError:
-            raise RegistryNotFound(name), None, sys.exc_info()[-1]
+            exc = RegistryNotFound(name)
+            exc.__traceback__ = sys.exc_info()[-1]
+            raise exc
 
     # methods for explicit (un)registration ###################################