How can I format the index column(s) with xlsxwriter?

问题

I'm using xlsxwriter and the set_column function that format the columns in my excel outputs.

However, formatting seems to be ignored when applied to the index column (or index columns in case of multi index).

I've found a workaround, so far is to introduce a fake index with reset_index then pass index=False to the to_excel function but then the nice merging feature of the multi index will be gone too.

Any ideas?

import pandas as pd
import numpy as np

from Config import TEMP_XL_FILE

def temp():
    ' temp'
    pdf = pd.DataFrame(np.random.randn(6,4), columns=list('ABCD'))
    pdf.set_index('A', drop=True, inplace=True)
    writer = pd.ExcelWriter(TEMP_XL_FILE, engine='xlsxwriter')
    pdf.to_excel(writer, 'temp')
    workbook = writer.book
    worksheet = writer.sheets['temp']
    tempformat = workbook.add_format({'num_format': '0%', 'align': 'center'})
    worksheet.set_column(-1, 3, None, tempformat)
    writer.save()

if __name__ == '__main__':
    temp()

回答1:

The pandas ExcelWriter overwrites the XlsxWriter formats in the index columns. To prevent that, change the pandas header_style to None

header_style = {"font": {"bold": True},
                "borders": {"top": "thin",
                            "right": "thin",
                            "bottom": "thin",
                            "left": "thin"},
                "alignment": {"horizontal": "center",
                              "vertical": "top"}}

To do that:

import pandas.io.formats.excel

pandas.io.formats.excel.header_style = None