paginate.py 文件源码

def _extract_paging_params(self, kwargs):
        pagination_config = kwargs.pop('PaginationConfig', {})
        max_items = pagination_config.get('MaxItems', None)
        if max_items is not None:
            max_items = int(max_items)
        page_size = pagination_config.get('PageSize', None)
        if page_size is not None:
            if self._pagination_cfg.get('limit_key', None) is None:
                raise PaginationError(
                    message="PageSize parameter is not supported for the "
                            "pagination interface for this operation.")
            page_size = int(page_size)
        return {
            'MaxItems': max_items,
            'StartingToken': pagination_config.get('StartingToken', None),
            'PageSize': page_size,
        }