升级了Python 到3.10，然后pandas写的ExcelWriter也跟着升级了，以下是版本：

pandas=1.5.0

xlwt==1.3.0

然后是执行原来的导数据到Excel的代码报错警告：

 FutureWarning: save is not part of the public API, usage can give in unexpected results and will be removed in a future version
 

writer = pd.ExcelWriter("excel_path.xlsx")
..... 
writer.save()

解决办法：

升级之后，writer.save（）接口已经私有化，调用close()即可。

writer = pd.ExcelWriter("excel_path.xlsx")
#..... 
#writer.save()
writer.close()

close()接口源码：

查看writer.close()接口，里面源码会调用save()并执行关闭接口。