関連ワード:  pandas append two dataframes with same columns    pandas combine two dataframes with same columns    pandas concat two dataframes with same columns    pandas add two dataframes with same columns    pandas combine multiple dataframes with same columns    pandas merge two dataframes with same column names    pandas join two dataframes with same column names    pandas concat two dataframes with same column names    pandas merge two dataframes with same column value    pandas merge two dataframes with same column names rename  
結果 : pandas append two dataframes with same columns