Fixed #11461: Ensured complete traceback is available on the debug page when an exception is encountered during template rendering, even when running on Python 2.6 or higher. Thanks Glenn.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12725 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/template/__init__.py

@@ -104,20 +104,7 @@ builtins = []
 invalid_var_format_string = None
 
 class TemplateSyntaxError(Exception):
-    def __str__(self):
-        try:
-            import cStringIO as StringIO
-        except ImportError:
-            import StringIO
-        output = StringIO.StringIO()
-        output.write(Exception.__str__(self))
-        # Check if we wrapped an exception and print that too.
-        if hasattr(self, 'exc_info'):
-            import traceback
-            output.write('\n\nOriginal ')
-            e = self.exc_info
-            traceback.print_exception(e[0], e[1], e[2], 500, output)
-        return output.getvalue()
+    pass
 
 class TemplateDoesNotExist(Exception):
     pass

django/template/debug.py

@@ -76,10 +76,11 @@ class DebugNodeList(NodeList):
             raise
         except Exception, e:
             from sys import exc_info
-            wrapped = TemplateSyntaxError(u'Caught an exception while rendering: %s' % force_unicode(e, errors='replace'))
+            wrapped = TemplateSyntaxError(u'Caught %s while rendering: %s' %
+                (e.__class__.__name__, force_unicode(e, errors='replace')))
             wrapped.source = node.source
             wrapped.exc_info = exc_info()
-            raise wrapped
+            raise wrapped, None, wrapped.exc_info[2]
         return result
 
 class DebugVariableNode(VariableNode):