--- a/schema.py	Thu Aug 28 18:12:28 2014 +0200
+++ b/schema.py	Fri Sep 12 14:10:03 2014 +0200
@@ -37,7 +37,8 @@
      RelationDefinitionSchema, PermissionMixIn, role_name
 from yams.constraints import BaseConstraint, FormatConstraint
 from yams.reader import (CONSTRAINTS, PyFileReader, SchemaLoader,
-                         obsolete as yobsolete, cleanup_sys_modules)
+                         obsolete as yobsolete, cleanup_sys_modules,
+                         fill_schema_from_namespace)
 
 from rql import parse, nodes, RQLSyntaxError, TypeResolverException
 
@@ -106,6 +107,11 @@
 ybo.ETYPE_PROPERTIES += ('eid',)
 ybo.RTYPE_PROPERTIES += ('eid',)
 
+def build_schema_from_namespace(items):
+    schema = CubicWebSchema('noname')
+    fill_schema_from_namespace(schema, items, register_base_types=False)
+    return schema
+
 # Bases for manipulating RQL in schema #########################################
 
 def guess_rrqlexpr_mainvars(expression):