https://stackoverflow.com/questions/10715965/create-a-pandas-dataframe-by-appending-one-row-at-a-time
위에서부터 2번째 답변 참조
rows_list = [] for row in input_rows: dict1 = {} # get input row in dictionary format # key = col_name dict1.update(blah..) rows_list.append(dict1) df = pd.DataFrame(rows_list)
이 방법이 속도가 가장 빠르고 쉽더라.