판다스버전이 올라감에 따라 에러

 You are setting values through chained assignment. Currently this works in certain cases, but when using Copy-on-Write (which will become the default behaviour in pandas 3.0) this will never work to update the original DataFrame or Series, because the intermediate object on which we are setting values will behave as a copy

판다스 3.0부터 다음의 에러가발생합니다.