将数据附加到格式化的Excel中

我想附加一些数据到Excel文件中：

import os from xlutils.copy import copy import xlrd as ExcelRead def write_append(file_name): values = ["Ann", "woman", 22, "UK"] r_xls = ExcelRead.open_workbook(file_name,formatting_info=True,on_demand=True) r_sheet = r_xls.sheet_by_index(0) rows = r_sheet.nrows w_xls = copy(r_xls) sheet_write = w_xls.get_sheet(0) for i in range(0, len(values)): sheet_write.write(rows, i, values[i]) w_xls.save(file_name) if __name__ == "__main__": write_append("./bzxx.xls") 

但得到的错误结果如下：

 D:\Python\Environment\env_finance\Scripts\python.exe E:/Project/Finance/code/financeSystem/temp/copyfile.py Traceback (most recent call last): File "E:/Project/Finance/code/financeSystem/temp/copyfile.py", line 36, in <module> write_append("./bzxx.xls") File "E:/Project/Finance/code/financeSystem/temp/copyfile.py", line 31, in write_append w_xls.save(file_name) File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\Workbook.py", line 696, in save doc.save(filename_or_stream, self.get_biff_data()) File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\Workbook.py", line 653, in get_biff_data before += self.__all_fonts_num_formats_xf_styles_rec() File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\Workbook.py", line 556, in __all_fonts_num_formats_xf_styles_rec return self.__styles.get_biff_data() File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\Style.py", line 185, in get_biff_data result += self._all_num_formats() File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\Style.py", line 209, in _all_num_formats result += NumberFormatRecord(fmtidx, fmtstr).get() File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\BIFFRecords.py", line 785, in __init__ ufmtstr = upack2(fmtstr) File "D:\Python\Environment\env_finance\lib\site-packages\xlwt\UnicodeUtils.py", line 50, in upack2 us = unicode(s, encoding) TypeError: coercing to Unicode: need string or buffer, NoneType found 

Excel格式化，不能更改。 我想添加一些数据， 你能帮我吗？