解決方案:
因為新版本的openpyxl使用rows或者columns返回一個生成器所以可以使用List來解決報錯問題
>>> sheet.columns[0] Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: 'generator' object is not subscriptable >>> list(sheet.columns)[0] (<Cell Sheet1.A1>, <Cell Sheet1.A2>, <Cell Sheet1.A3>, <Cell Sheet1.A4> >>> list(sheet.columns)[1] (<Cell Sheet1.B1>, <Cell Sheet1.B2>, <Cell Sheet1.B3>, <Cell Sheet1.B4>