Enable no-name-in-module pylint check

Add _MovedItems (from six.moves) to pylintrc ignored-modules, and adjust
one import of sqlalchemy.orm.properties.RelationshipProperty.

s.o.p.RelationshipProperty is created at import-time in a rather
exciting manner - rearranging the import in this way forces the
import-time code to be executed and seems sufficient to satisfy the
pylint static check.

Change-Id: Ic99dc2b7dfac75930a5c446ae899eaae09ee6174

.pylintrc

@@ -25,7 +25,6 @@ disable=
  maybe-no-member,
  no-member,
  no-method-argument,
- no-name-in-module,
  no-self-argument,
  not-callable,
  no-value-for-parameter,
@@ -130,6 +129,10 @@ deprecated-modules=
 # should use openstack.common.jsonutils
  json
 
+[TYPECHECK]
+# List of module names for which member attributes should not be checked
+ignored-modules=six.moves,_MovedItems
+
 [REPORTS]
 # Tells whether to display a full report or only the messages
 reports=no

neutron/db/sqlalchemyutils.py

@@ -15,7 +15,7 @@
 
 from six import moves
 import sqlalchemy
-from sqlalchemy.orm.properties import RelationshipProperty
+from sqlalchemy.orm import properties
 
 from neutron.common import exceptions as n_exc
 from neutron.openstack.common import log as logging
@@ -72,7 +72,7 @@ def paginate_query(query, model, limit, sorts, marker_obj=None):
             # existed in attr_info, it will be catched at here
             msg = _("%s is invalid attribute for sort_key") % sort_key
             raise n_exc.BadRequest(resource=model.__tablename__, msg=msg)
-        if isinstance(sort_key_attr.property, RelationshipProperty):
+        if isinstance(sort_key_attr.property, properties.RelationshipProperty):
             msg = _("The attribute '%(attr)s' is reference to other "
                     "resource, can't used by sort "
                     "'%(resource)s'") % {'attr': sort_key,