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Pandas - 将数据框的 Headers 和索引导出到Excel会导致TypeError

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我使用 pandas 0.15openpyxl 2.2.0 作为编写器引擎,但 pandas 0.16 也出现同样的问题 .

我需要将pandas数据帧导出到 .xlsx 文件 . 数据框非常简单 - 类似于:

col_A  col_B col_C
0      1    100    AB
1      2    200    AC
2      3    300    AD

我可以导出数据帧的内容(即没有索引标签和列名称):

df.to_excel(path_to_xlsx_file, sheet_name, header=False, index=False)

但是,如果我包含索引标签或列名称(或两者),我会得到一个TypeError . 这个:

df.to_excel(path_to_xlsx_file, sheet_name, header=False, index=True)

或这个:

df.to_excel(path_to_xlsx_file, sheet_name, header=True, index=False)

导致这个:

Traceback (most recent call last):

  File "<ipython-input-11-a60810c2c9c2>", line 1, in <module>
    runfile('F:/mine/python/pandas_tests.py', wdir='F:/mine/python')

  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 601, in runfile
    execfile(filename, namespace)

  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 66, in execfile
    exec(compile(scripttext, filename, 'exec'), glob, loc)

  File "F:/mine/python/pandas_tests.py", line 25, in <module>
    df.to_excel(path_to_xlsx_file, sheet_name, header=True, index=False)

  File "C:\Python27\lib\site-packages\pandas\util\decorators.py", line 88, in wrapper
    return func(*args, **kwargs)

  File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 1260, in to_excel
    startrow=startrow, startcol=startcol)

  File "C:\Python27\lib\site-packages\pandas\io\excel.py", line 705, in write_cells
    xcell.style = xcell.style.copy(**style_kwargs)

  File "C:\Python27\lib\site-packages\openpyxl-2.2.0-py2.7.egg\openpyxl\styles\styleable.py", line 107, in style
    protection=self.protection

  File "C:\Python27\lib\site-packages\openpyxl-2.2.0-py2.7.egg\openpyxl\styles\__init__.py", line 42, in __init__
    self._font = font

  File "C:\Python27\lib\site-packages\openpyxl-2.2.0-py2.7.egg\openpyxl\descriptors\base.py", line 35, in __set__
    raise TypeError('expected ' + str(self.expected_type))

TypeError: expected <class 'openpyxl.styles.fonts.Font'>

我不能使用xlsxwriter,因为必须将数据框导出到现有文件 .

1 回答

  • 0

    解决方案是使用openpyxl版本2.1.3或2.1.5 .

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