(in django-1.0.X/django/contrib/comments)
svn diff __init__.py
Index: __init__.py
===================================================================
--- __init__.py	(revision 9791)
+++ __init__.py	(working copy)
@@ -17,7 +17,7 @@
 
     # Try to import the package
     try:
-        package = __import__(comments_app, '', '', [''])
+        package = __import__(comments_app, globals(), locals(), [''])
     except ImportError:
         raise ImproperlyConfigured("The COMMENTS_APP setting refers to "\
                                    "a non-existing package.")