python---数据导出为.xlsx文件并根据字段名自动调整列宽

运用openpyxl库的方式来导出文件：

#导入处理xlsx文件相关库
import pandas as pd
import copy
from openpyxl import Workbook
from openpyxl.styles import Font
class cash_out_DataAnalysis():
    def __init__(self,data_with_fields):
        self.data_with_fields=data_with_fields  
    def cash_out_condition(self):
    	"""数据内容获取逻辑"""
    #导出文件逻辑	
    def cash_out_adjust(self):
    	self.cash_out_condition()
        path = app_path()
        file_path = path + r'\Data_analysis\output.xlsx'
        #df = pd.DataFrame(data_with_fields)
        #df.to_excel(file_path, index