Index: Zope/lib/python/ZPublisher/HTTPRequest.py
===================================================================
--- Zope/lib/python/ZPublisher/HTTPRequest.py	(révision 72944)
+++ Zope/lib/python/ZPublisher/HTTPRequest.py	(copie de travail)
@@ -1521,7 +1521,7 @@
     _guarded_writes = 1
 
     def __getattr__(self, key, default=None):
-        if key in ('get', 'keys', 'items', 'values', 'copy', 'has_key'):
+        if key in ('get', 'keys', 'items', 'values', 'copy', 'has_key', '__contains__', '__iter__', '__len__'):
             return getattr(self.__dict__, key)
         raise AttributeError, key