def _write_number_formats(self):
        node = SubElement(self._root, 'numFmts', count= len(self.wb._number_formats) % "%d")
        for idx, nf in enumerate(self.wb._number_formats, 164):
            SubElement(node, 'numFmt', {'numFmtId':'%d' % idx,
                                        'formatCode':'%s' % nf}
                       )
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/openpyxl-2.3.0-b2/openpyxl/writer/styles.py/StyleWriter._write_number_formats/swapped operands of `%`