AttributeError：'str'對象沒有屬性'write'

Question

我正在研究Python並定義了一個名為“_headers”的變量，如下所示

_headers = ('id',
                'recipient_address_1',
                'recipient_address_2',
                'recipient_address_3',
                'recipient_address_4',
                'recipient_address_5',
                'recipient_address_6',
                'recipient_postcode',
                )

為了將其寫入輸出文件，我編寫了以下語句，但它引發了錯誤“AttributeError：'str'對象沒有屬性'write'”

with open(outfile, 'w') as f:  
            outfile.write(self._headers)  
            print done

請幫忙

Answer 1

你想要f.write ，而不是outfile.write ......

outfile是文件名作為字符串。 f是文件對象。

如注釋中所述， file.write需要一個字符串，而不是序列。 如果要從序列中寫入數據，可以使用file.writelines 。 例如f.writelines(self._headers) 。 但要注意，這不會在每一行附加換行符。 你需要自己做。 :)

Answer 2

假設您每行需要1個標頭，請嘗試以下方法：

with open(outfile, 'w') as f:
    f.write('\n'.join(self._headers))  
    print done

Answer 3

盡可能接近您的腳本：

>>> _headers = ('id',
...             'recipient_address_1',
...             'recipient_address_2',
...             'recipient_address_3',
...             'recipient_address_4',
...             'recipient_address_5',
...             'recipient_address_6',
...             'recipient_postcode',
...            )
>>> done = "Operation successfully completed"
>>> with open('outfile', 'w') as f:
...     for line in _headers:
...         f.write(line + "\n")
...     print done
Operation successfully completed