diff -r ee87c5352e63 -r 2d5c46e78ae9 selectors.py
--- a/selectors.py	Wed May 05 18:10:33 2010 +0200
+++ b/selectors.py	Thu Apr 29 08:39:13 2010 +0200
@@ -1288,6 +1288,10 @@
                 return None
         super(is_in_state, self).__init__(score)
 
+@objectify_selector
+def debug_mode(cls, req, rset=None, **kwargs):
+    """Return 1 if running in debug mode"""
+    return req.vreg.config.debugmode and 1 or 0
 
 ## deprecated stuff ############################################################