解压缩python中每个文件夹和子文件夹中的所有.bz2文件

Question

I have the code below which starts at a directory and is suppose to go into each folder, open cmd and exec the statement below.

I can see it going into each directory but the cmd screen flashes but nothing is extracted. Am I doing something wrong?

import os

for dirpath, dirnames, filenames in os.walk('.', topdown = True):
    os.system('7z e *.bz2')
    print(dirpath)

Thank you very much!

Answer 1

You should make use of the dirpath and filenames variables while iterating through the os.walk generator:

import os
for dirpath, _, filenames in os.walk('.', topdown = True):
    for filename in filenames:
        if filename.endswith('.bz2'):
            os.chdir(dirpath)
            os.system('7z e ' + os.path.join(dirpath, filename))