code: def print_xmlsec_errors(filename, line, func, error_object, error_subject, reason, msg):
      
  
      info = []
      if error_object != "unknown":
          info.append("obj=" + error_object)
      if error_subject != "unknown":
          info.append("subject=" + error_subject)
      if msg.strip():
          info.append("msg=" + msg)
      if reason != 1:
          info.append("errno=%d" % reason)
      if info:
          print("%s:%d(%s)" % (filename, line, func), " ".join(info))
docs: Auxiliary method. It overrides the default xmlsec debug message.