def _clean_xmldict_single_dic(self, dictionary):
        """ Every None replace by '' in the dic, as xml parsers puts None in those fiels, which is not valid for IAR """
        for k, v in dictionary.items():
            if v is None:
                dictionary[k] = ''
Every None replace by '' in the dic, as xml parsers puts None in those fiels, which is not valid for IAR