python3.8 运行提示AttributeError: 'NoneType' object has no attribute 'iter_rows'是什么意思，怎么解决？

Question

以下是我的代码：
import openpyxl

path = 'D:\测试文件\work\应收账款账龄表--测试.xlsx'

wb =openpyxl.Workbook(path)
ws = wb.active

for row in ws.iter_rows(min_row=2, max_row=7,values_only=True):

wb = openpyxl.Workbook()
new_ws = wb.active


for head in ws.iter_rows(min_row=1, max_row=1,values_only=True):
    new_ws.append(head)


    new_ws.append(row)

    wb.save('D:\测试文件\work\应收账款账龄表-拆分后\\'+row[1]+'.xlsx')

Answer 1

print()一下ws你就知道答案了