Pandas DataFrame到Excel：索引的垂直对齐

Question

给出以下数据框： 将pandas导入为pd

d=pd.DataFrame({'a':['a','a','b','b'],
               'b':['a','b','c','d'],
               'c':[1,2,3,4]})
d=d.groupby(['a','b']).sum()
d

我想以相对于索引的相同对齐方式导出它（请参阅最左边的列如何垂直居中？）。 问题是，当将其导出到Excel时，左列与每个单元格的顶部对齐：

writer = pd.ExcelWriter('pandas_out.xlsx', engine='xlsxwriter')
workbook  = writer.book
f=workbook.add_format({'align': 'vcenter'})
d.to_excel(writer, sheet_name='Sheet1')
writer.save()

... ...产生

有没有办法通过XLSX Writer或其他库垂直居中A列？

提前致谢！

Answer 1

您正尝试更改标题的格式，因此您应首先重置默认标题设置

pd.core.format.header_style = None

然后根据需要应用格式

format = workbook.add_format()
format.set_align('center')
format.set_align('vcenter')

worksheet.set_column('A:C',5, format)

这是完整的工作代码

d=pd.DataFrame({'a':['a','a','b','b'],
               'b':['a','b','c','d'],
               'c':[1,2,3,4]})
d=d.groupby(['a','b']).sum()

pd.core.format.header_style = None

writer = pd.ExcelWriter('pandas_out.xlsx', engine='xlsxwriter')
workbook  = writer.book
d.to_excel(writer, sheet_name='Sheet1')

worksheet = writer.sheets['Sheet1']

format = workbook.add_format()
format.set_align('center')
format.set_align('vcenter')

worksheet.set_column('A:C',5, format)
writer.save()