Python3：将字符串写入.txt.bz2文件

Question

我想通过两个列表将连接结果写入txt.bz2文件（文件名由代码命名，不存在于开始处）。就像txt文件中的以下表单一样。

1 a,b,c 
0 d,f,g 
....... 

但是有错误。我的代码如下，请给我提示如何处理它。谢谢！

进口BZ2

x = ['a b c', 'd f g', 'h i k', 'k j l'] 
y = [1, 0, 0, 1] 

with bz2.BZ2File("data/result_small.txt.bz2", "w") as bz_file: 
    for i in range(len(y)): 
     m = ','.join(x[i].split(' ')) 
     n = str(y[i])+'\t'+m 
     bz_file.write(n) 

错误：

compressed = self._compressor.compress(data) 
TypeError: a bytes-like object is required, not 'str' 

Answer 1

以文本模式打开文件：

import bz2 

x = ['a b c', 'd f g', 'h i k', 'k j l'] 
y = [1, 0, 0, 1] 

with bz2.open("data/result_small.txt.bz2", "wt") as bz_file: 
    for i in range(len(y)): 
     m = ','.join(x[i].split(' ')) 
     n = str(y[i]) + '\t' + m 
     bz_file.write(n + '\n') 

更简洁：

import bz2 

x = ['a b c', 'd f g', 'h i k', 'k j l'] 
y = [1, 0, 0, 1] 

with bz2.open("data/result_small.txt.bz2", "wt") as bz_file: 
    for a, b in zip(x, y): 
     bz_file.write('{}\t{}\n'.format(b, ','.join(a.split()))) 

Answer 2

您可以通过使用文件bz2.BZ2File(path)打开BZ2文件。

with bz2.BZ2File("data/result_small.txt.bz2", "rt") as bz_file: 
    #...