@property
    def prev_page(self):
        if self.has_prev:
            page = 1 - self.page if self.page > 2 else None
            url = self.page_href(page)
            return self.prev_page_fmt.format(url, self.prev_label)

        return self.prev_disabled_page_fmt.format(self.prev_label)
dataset/ETHPy150Open lixxu/flask-paginate/flask_paginate/__init__.py/Pagination.prev_page/swapped operands of `-`