熊猫：了解操作何时影响原始数据帧

I love pandas and have been using it for years and feel pretty confident I have a good handle on how to subset dataframes and deal with views vs copies appropriately (though I use a lot of assertions to be sure). I also know that there have been tons of questions about SettingWithCopyWarning, e.g. I love pandas and have been using it for years