def warning(self, msg, *args, **kwargs):
        exc_text = kwargs.pop('exc_text', None)
        # Append the traceback to the message
        if exc_text:
            msg += "\n%s"
            args += (exc_text, )
        return log.warning(msg, *args, **kwargs)
Warning handling callback
dataset/ETHPy150Open sassoftware/conary/conary/callbacks.py/ChangesetCallback.warning