diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/schemas/__init__.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/schemas/__init__.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,51 @@
+# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+"""some constants and classes to define schema permissions"""
+
+__docformat__ = "restructuredtext en"
+
+from cubicweb.schema import RO_REL_PERMS, RO_ATTR_PERMS, \
+     PUB_SYSTEM_ENTITY_PERMS, PUB_SYSTEM_REL_PERMS, \
+     ERQLExpression, RRQLExpression
+
+# permissions for "meta" entity type (readable by anyone, can only be
+# added/deleted by managers)
+META_ETYPE_PERMS = PUB_SYSTEM_ENTITY_PERMS # XXX deprecates
+# permissions for "meta" relation type (readable by anyone, can only be
+# added/deleted by managers)
+META_RTYPE_PERMS = PUB_SYSTEM_REL_PERMS # XXX deprecates
+# permissions for relation type that should only set by hooks using unsafe
+# execute, readable by anyone
+HOOKS_RTYPE_PERMS = RO_REL_PERMS # XXX deprecates
+
+
+from logilab.common.modutils import LazyObject
+from logilab.common.deprecation import deprecated
+class MyLazyObject(LazyObject):
+
+    def _getobj(self):
+        try:
+            return super(MyLazyObject, self)._getobj()
+        except ImportError:
+            raise ImportError('In cubicweb 3.14, function %s has been moved to '
+                              'cube localperms. Install it first.' % self.obj)
+
+for name in ('xperm', 'xexpr', 'xrexpr', 'xorexpr', 'sexpr', 'restricted_sexpr',
+             'restricted_oexpr', 'oexpr', 'relxperm', 'relxexpr', '_perm'):
+    msg = '[3.14] import %s from cubes.localperms' % name
+    globals()[name] = deprecated(msg, name=name, doc='deprecated')(MyLazyObject('cubes.localperms', name))