def _render_html(self):
        suite, error = _create_suite(self.request)
        if not error:
            self.response.out.write((_test_suite_to_json(suite), _WEB_TEST_DIR, __version__) % _MAIN_PAGE_CONTENT)
        else:
            self.error(404)
            self.response.out.write(error)
	    self.response.headers["Content-Type"] = "text/plain"
dataset/ETHPy150Open IanLewis/kay/kay/ext/testutils/gaeunit.py/MainTestPageHandler._render_html/swapped operands of `%`