python - 异常：工作簿析构函数中捕获的异常。workbook.python 可能需要显式 close()

Question

我使用 pandas 库编写了一个程序。我正在尝试写入一个 excel 文件，并编写了以下代码：

writer = pd.ExcelWriter(DIR_PATH + 'output.xlsx', engine='xlsxwriter')

styled.to_excel(writer, sheet_name='Sheet1', index=False)

styled2.to_excel(writer, sheet_name='Sheet2', index=False)
print(styled2)
styled3.to_excel(writer, sheet_name='Sheet3', index=False)
print(styled3)
writer.save()
writer.close()
excel.Application.Quit()

################ setting column width to fit data ##################
wb = excel.Workbooks.Open(DIR_PATH + 'output.xlsx')
ws1 = wb.Worksheets("Sheet1")
wb.Save()
ws2 = wb.Worksheets("Sheet2")
wb.Save()
ws3 = wb.Worksheets("Sheet3")
wb.Save()
ws1.Columns.AutoFit()
ws2.Columns.AutoFit()
ws3.Columns.AutoFit()
wb.Save()
wb.close()
excel.Application.Quit()

我得到了错误：

    Traceback (most recent call last):
  File "K:/test_results.efrat.py", line 151, in <module>
    styled.to_excel(writer, sheet_name='Sheet1', index=False)
  File "K:\venv\lib\site-packages\pandas\io\formats\style.py", line 175, in to_excel
    engine=engine)
  File "K:\venv\lib\site-packages\pandas\io\formats\excel.py", line 652, in write
    freeze_panes=freeze_panes)
  File "K:\venv\lib\site-packages\pandas\io\excel.py", line 1750, in write_cells
    for cell in cells:
  File "K:\venv\lib\site-packages\pandas\io\formats\excel.py", line 617, in get_formatted_cells
    self._format_body()):
  File "K:\venv\lib\site-packages\pandas\io\formats\excel.py", line 529, in _format_regular_rows
    for cell in self._generate_body(coloffset):
  File "K:\venv\lib\site-packages\pandas\io\formats\excel.py", line 601, in _generate_body
    styles = self.styler._compute().ctx
  File "K:\venv\lib\site-packages\pandas\io\formats\style.py", line 514, in _compute
    r = func(self)(*args, **kwargs)
  File "K:\venv\lib\site-packages\pandas\io\formats\style.py", line 604, in _applymap
    result = self.data.loc[subset].applymap(func)
  File "K:\venv\lib\site-packages\pandas\core\indexing.py", line 1472, in __getitem__
    return self._getitem_tuple(key)
  File "K:\venv\lib\site-packages\pandas\core\indexing.py", line 890, in _getitem_tuple
    retval = getattr(retval, self.name)._getitem_axis(key, axis=i)
  File "K:\venv\lib\site-packages\pandas\core\indexing.py", line 1901, in _getitem_axis
    return self._getitem_iterable(key, axis=axis)
  File "K:\venv\lib\site-packages\pandas\core\indexing.py", line 1143, in _getitem_iterable
    self._validate_read_indexer(key, indexer, axis)
  File "K:\venv\lib\site-packages\pandas\core\indexing.py", line 1206, in _validate_read_indexer
    key=key, axis=self.obj._get_axis_name(axis)))
KeyError: "None of [['Failed/Passed']] are in the [columns]"
Exception ignored in: <bound method Workbook.__del__ of <xlsxwriter.workbook.Workbook object at 0x00000000176730F0>>
Traceback (most recent call last):
  File "K:\venv\lib\site-packages\xlsxwriter\workbook.py", line 154, in __del__
Exception: Exception caught in workbook destructor. Explicit close() may be required for workbook.

但是我wb.close()在代码的末尾使用了，所以我不明白为什么会出现这个异常。有谁知道问题是什么，我该如何解决？谢谢。

标签： pythonexcel