Fixed incorrect error message

Added missing import
Fixed Typo (pylint "undefined variable NoneV")

nova/compute/instance_types.py

@@ -114,7 +114,7 @@ def get_instance_type(id):
         ctxt = context.get_admin_context()
         return db.instance_type_get_by_id(ctxt, id)
     except exception.DBError:
-        raise exception.ApiError(_("Unknown instance type: %s") % name)
+        raise exception.ApiError(_("Unknown instance type: %s") % id)
 
 
 def get_instance_type_by_name(name):

nova/compute/monitor.py

@@ -36,6 +36,7 @@ from twisted.application import service
 
 from nova import flags
 from nova import log as logging
+from nova import utils
 from nova.virt import connection as virt_connection
 
 

nova/console/vmrc.py

@@ -119,7 +119,7 @@ class VMRCSessionConsole(VMRCConsole):
         """
         vms = vim_session._call_method(vim_util, 'get_objects',
                     'VirtualMachine', ['name'])
-        vm_ref = NoneV
+        vm_ref = None
         for vm in vms:
             if vm.propSet[0].val == instance_name:
                 vm_ref = vm.obj