python存储时提示Errno 2] No such file or directory: 'C:\\Users\\nuonu\\Desktop\\province_time\\人均地区生产总值(元/人).xlsx'

import os
import openpyxl
def transform(parent_path,out_path):
    FileNames = os.listdir(parent_path)  #文件夹下面所有的文件
    for file in FileNames:
        filename=os.path.join(parent_path,file) 
        wb = openpyxl.load_workbook(filename) 
        sheet = wb['分省年度数据']
        value_name=sheet['A2'].value[3:]
        outfile=os.path.join(out_path,value_name)        
        sheet.delete_rows(36,2)
        sheet.delete_rows(1,3)
        wb.save(outfile + '.xlsx')

if __name__=='__main__':
    path1=r"C:\Users\nuonu\Desktop\province_xlsx"  #待转换文件所在目录
    path2=r"C:\Users\nuonu\Desktop\province_time"  #转换文件存放目录
    transform(path1, path2)        

运行上面代码时提示Errno 2] No such file or directory:；可自己核对发现该文件夹确确实实创建了呀

为了核对，简化之后，找一个示例结果却是可以输出的

import os
import openpyxl
path2=r"C:\Users\nuonu\Desktop\province_time" 
wb = openpyxl.load_workbook("C:\\Users\\nuonu\\Desktop\\bgf.xlsx")
sheet = wb['分省年度数据']
value_name=sheet['A2'].value[3:]
outfile=os.path.join(path2,value_name) 
sheet.delete_rows(36,2)
sheet.delete_rows(1,3)
wb.save(outfile+ '.xlsx') 

新手上路，还请高人指点