--- a/cwvreg.py	Mon May 23 13:35:09 2011 +0200
+++ b/cwvreg.py	Mon May 23 11:36:43 2011 +0200
@@ -204,7 +204,6 @@
 from cubicweb import (ETYPE_NAME_MAP, Binary, UnknownProperty, UnknownEid,
                       ObjectNotFound, NoSelectableObject, RegistryNotFound,
                       CW_EVENT_MANAGER)
-from cubicweb.utils import dump_class
 from cubicweb.vregistry import VRegistry, Registry, class_regid, classid
 from cubicweb.rtags import RTAGS
 
@@ -368,7 +367,10 @@
         # make a copy event if cls.__regid__ == etype, else we may have pb for
         # client application using multiple connections to different
         # repositories (eg shingouz)
-        cls = dump_class(cls, etype)
+        # __autogenerated__ attribute is just a marker
+        cls = type(str(etype), (cls,), {'__autogenerated__': True,
+                                        '__doc__': cls.__doc__,
+                                        '__module__': cls.__module__})
         cls.__regid__ = etype
         cls.__initialize__(self.schema)
         return cls

--- a/utils.py	Mon May 23 13:35:09 2011 +0200
+++ b/utils.py	Mon May 23 11:36:43 2011 +0200
@@ -51,20 +51,6 @@
     return str(key) + uuid4().hex
 
 
-def dump_class(cls, clsname):
-    """create copy of a class by creating an empty class inheriting
-    from the given cls.
-
-    Those class will be used as place holder for attribute and relation
-    description
-    """
-    # type doesn't accept unicode name
-    # return type.__new__(type, str(clsname), (cls,), {})
-    # __autogenerated__ attribute is just a marker
-    return type(str(clsname), (cls,), {'__autogenerated__': True,
-                                       '__doc__': cls.__doc__,
-                                       '__module__': cls.__module__})
-
 def support_args(callable, *argnames):
     """return true if the callable support given argument names"""
     if isinstance(callable, type):