diff -r 31e63e25b4cc -r 64beb9e9c749 c_ext/c_ext.py
--- a/c_ext/c_ext.py	Mon Aug 21 20:17:19 2017 +0000
+++ b/c_ext/c_ext.py	Mon Aug 21 23:22:58 2017 +0300
@@ -27,6 +27,7 @@
 from CFileEditor import CFileEditor
 from CodeFileTreeNode import CodeFile
 
+
 class CFile(CodeFile):
     XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
     <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
@@ -47,13 +48,13 @@
         "retrieveFunction",
         "publishFunction"]
     EditorType = CFileEditor
-    
+
     def GetIconName(self):
         return "Cfile"
 
     def CodeFileName(self):
         return os.path.join(self.CTNPath(), "cfile.xml")
-    
+
     def CTNGenerate_C(self, buildpath, locations):
         """
         Generate C code
@@ -70,17 +71,17 @@
         current_location = self.GetCurrentLocation()
         # define a unique name for the generated C file
         location_str = "_".join(map(str, current_location))
-        
+
         text = "/* Code generated by Beremiz c_ext confnode */\n\n"
         text += "#include <stdio.h>\n\n"
-        
+
         # Adding includes
         text += "/* User includes */\n"
         text += self.CodeFile.includes.getanyText().strip()
         text += "\n"
-        
+
         text += '#include "iec_types_all.h"\n\n'
-        
+
         # Adding variables
         config = self.GetCTRoot().GetProjectConfigNames()[0]
         text += "/* User variables reference */\n"
@@ -93,36 +94,35 @@
             text += "extern %(type)s %(global)s;\n" % var_infos
             text += "#define %(name)s %(global)s.value\n" % var_infos
         text += "\n"
-        
+
         # Adding user global variables and routines
         text += "/* User internal user variables and routines */\n"
         text += self.CodeFile.globals.getanyText().strip()
         text += "\n"
-        
+
         # Adding Beremiz confnode functions
         text += "/* Beremiz confnode functions */\n"
-        text += "int __init_%s(int argc,char **argv)\n{\n"%location_str
+        text += "int __init_%s(int argc,char **argv)\n{\n" % location_str
         text += self.CodeFile.initFunction.getanyText().strip()
         text += "  return 0;\n}\n\n"
-        
-        text += "void __cleanup_%s(void)\n{\n"%location_str
+
+        text += "void __cleanup_%s(void)\n{\n" % location_str
         text += self.CodeFile.cleanUpFunction.getanyText().strip()
         text += "\n}\n\n"
-        
-        text += "void __retrieve_%s(void)\n{\n"%location_str
+
+        text += "void __retrieve_%s(void)\n{\n" % location_str
         text += self.CodeFile.retrieveFunction.getanyText().strip()
         text += "\n}\n\n"
-        
-        text += "void __publish_%s(void)\n{\n"%location_str
+
+        text += "void __publish_%s(void)\n{\n" % location_str
         text += self.CodeFile.publishFunction.getanyText().strip()
         text += "\n}\n\n"
-        
-        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c"%location_str)
-        cfile = open(Gen_Cfile_path,'w')
+
+        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c" % location_str)
+        cfile = open(Gen_Cfile_path, 'w')
         cfile.write(text)
         cfile.close()
-        
-        matiec_CFLAGS = '"-I%s"'%os.path.abspath(self.GetCTRoot().GetIECLibPath())
-        
-        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_CFLAGS))],str(self.CExtension.getLDFLAGS()),True
 
+        matiec_CFLAGS = '"-I%s"' % os.path.abspath(self.GetCTRoot().GetIECLibPath())
+
+        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_CFLAGS))], str(self.CExtension.getLDFLAGS()), True