Perform lookup for series

        :param str series_name: series name found within filename
        :returns: instance of series
        :rtype: object

def get_series_by_name(self, series_name):
        """Perform lookup for series

        :param str series_name: series name found within filename
        :returns: instance of series
        :rtype: object
        """
        try:
            return self.api.search_series(name=series_name), None
        except exceptions.TVDBRequestException as err:
            LOG.exception('search for series %s failed', series_name)
            return None, _as_str(err)