python - TypeError：“str”对象的描述符“encode”不适用于“tuple”对象

Question

可以请一些人帮助修复 TypeError。它适用于 python 2，但不适用于 python 3。

Python2：

def ExchangeColumns(RECXX_Output,Modified_Recxx_Output,column1,column2,column3,column4,column5,column6):
with open(RECXX_Output) as infile ,open(Modified_Recxx_Output, 'wb') as outfile:
        reader = csv.DictReader(infile)
        append = (column1,column2,column3,column4,column5,column6)
        outfile.write(','.join(append)+'\n')

Python3：

def ExchangeColumns(RECXX_Output,Modified_Recxx_Output,column1,column2,column3,column4,column5,column6):
    with open(RECXX_Output) as infile ,open(Modified_Recxx_Output, 'wb') as outfile:
        reader = csv.DictReader(infile)
        append = (column1,column2,column3,column4,column5,column6)
        appendb =  str.encode(append)
        outfile.write(b','.join(appendb)+b'\n')
        ##outfile.write(b','.join(append).encode(encoding='utf-8')+b'\n')

Answer 1

答案就在问题中 - 你有一个元组对象而不是字符串。

Answer 2

在将文件打开为“w”而不是“wb”后它工作了

with open(RECXX_Output) as infile ,open(Modified_Recxx_Output, 'w') as outfile: