Print non-iterable template context layers as-is

Signed-off-by: Rob Hudson <rob@cogit8.org>

Author: kmike

debug_toolbar/panels/template.py

@@ -83,19 +83,20 @@ def content(self):
 
                 context_list = []
                 for context_layer in context_data.dicts:
-                    for key, value in context_layer.items():
-                        # Replace any request elements - they have a large
-                        # unicode representation and the request data is
-                        # already made available from the Request Vars panel.
-                        if isinstance(value, http.HttpRequest):
-                            context_layer[key] = '<<request>>' 
-                        # Replace the debugging sql_queries element. The SQL
-                        # data is already made available from the SQL panel.
-                        elif key == 'sql_queries' and isinstance(value, list):
-                            context_layer[key] = '<<sql_queries>>' 
-                        # Replace LANGUAGES, which is available in i18n context processor
-                        elif key == 'LANGUAGES' and isinstance(value, tuple):
-                            context_layer[key] = '<<languages>>'
+                    if hasattr(context_layer, 'items'):
+                        for key, value in context_layer.items():
+                            # Replace any request elements - they have a large
+                            # unicode representation and the request data is
+                            # already made available from the Request Vars panel.
+                            if isinstance(value, http.HttpRequest):
+                                context_layer[key] = '<<request>>'
+                            # Replace the debugging sql_queries element. The SQL
+                            # data is already made available from the SQL panel.
+                            elif key == 'sql_queries' and isinstance(value, list):
+                                context_layer[key] = '<<sql_queries>>'
+                            # Replace LANGUAGES, which is available in i18n context processor
+                            elif key == 'LANGUAGES' and isinstance(value, tuple):
+                                context_layer[key] = '<<languages>>'
                     try:
                         context_list.append(pformat(context_layer))
                     except UnicodeEncodeError: