関連ワード:  sort python dataframe by one column    python sort dataframe by one column alphabetically    python sort dataframe by one column descending    python sort dataframe one column ascending other descending    sort data frame by one column python    sort pandas dataframe by one column    python sort dataframe by values in a column    sort python dataframe by column    pandas sort dataframe by one column descending    pandas sort dataframe by one column and reset index