exception.py 文件源码

def __init__(self, message=None, **kwargs):
        self.kwargs = kwargs

        if 'code' not in self.kwargs and hasattr(self, 'code'):
            self.kwargs['code'] = self.code

        if message:
            self.message = message

        try:
            self.message = self.message % kwargs
        except KeyError:
            # kwargs doesn't match a variable in the message
            # log the issue and the kwargs
            LOG.exception('Exception in string format operation, '
                          'kwargs: %s', kwargs)
            try:
                ferr = CONF.fatal_exception_format_errors
            except cfg.NoSuchOptError:
                ferr = CONF.oslo_versionedobjects.fatal_exception_format_errors
            if ferr:
                raise

        super(ZunException, self).__init__(self.message)