diff -r a375e31bf312 -r c1298e7ffe3a CodeFileTreeNode.py
--- a/CodeFileTreeNode.py	Sun Mar 05 00:38:25 2017 +0000
+++ b/CodeFileTreeNode.py	Fri Mar 24 12:07:47 2017 +0000
@@ -1,3 +1,28 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# This file is part of Beremiz, a Integrated Development Environment for
+# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
+#
+# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
+#
+# See COPYING file for copyrights details.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+
 import os, re, traceback
 
 from copy import deepcopy
@@ -92,11 +117,12 @@
             try:
                 self.CodeFile, error = self.CodeFileParser.LoadXMLString(codefile_xml)
                 if error is not None:
-                    self.GetCTRoot().logger.write_warning(
-                        XSDSchemaErrorMessage % ((self.CODEFILE_NAME,) + error))
+                    (fname, lnum, src) = ((self.CODEFILE_NAME,) + error)
+                    self.GetCTRoot().logger.write_warning(XSDSchemaErrorMessage.format(a1 = fname, a2 = lnum, a3 = src))
                 self.CreateCodeFileBuffer(True)
             except Exception, exc:
-                self.GetCTRoot().logger.write_error(_("Couldn't load confnode parameters %s :\n %s") % (CTNName, unicode(exc)))
+                msg = _("Couldn't load confnode parameters {a1} :\n {a2}").format(a1 = CTNName, a2 = unicode(exc))
+                self.GetCTRoot().logger.write_error(msg)
                 self.GetCTRoot().logger.write_error(traceback.format_exc())
         else:
             self.CodeFile = self.CodeFileParser.CreateRoot()