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所以最近我在这里做了一个关于需要脚本帮助的线程，该脚本应该自动为我提取.rar文件和.zip文件，无需用户交互。在人们的各种帮助下，我做到了：

import os
import re
from subprocess import check_call
from os.path import join

rx = '(.*zip$)|(.*rar$)|(.*r00$)'
path = "/mnt/externa/Torrents/completed/test"

for root, dirs, files in os.walk(path):
    if not any(f.endswith(".mkv") for f in files):
        found_r = False
        for file in files:
            pth = join(root, file)
            try:
                 if file.endswith(".zip"):
                    print("Unzipping ",file, "...")
                    check_call(["unzip", pth, "-d", root])
                    found_zip = True
                 elif not found_r and file.endswith((".rar",".r00")):
                     check_call(["unrar","e","-o-", pth, root])
                     found_r = True
                     break
            except ValueError:
                print ("OOps! That did not work")

我第一次在 .rar 文件上运行这个脚本时效果惊人，它将文件提取到正确的目录和所有内容，但如果我再次运行它，它会打印一个错误：

Extracting from /mnt/externa/Torrents/completed/test/A.Film/Subs/A.Film.subs.rar

No files to extract
Traceback (most recent call last):
  File "unrarscript.py", line 20, in <module>
    check_call(["unrar","e","-o-", pth, root])
  File "/usr/lib/python2.7/subprocess.py", line 541, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['unrar', 'e', '-o-', '/mnt/externa/Torrents/completed/test/A.Film/Subs/A.Film.subs.rar', '/mnt/externa/Torrents/completed/test/A.Film/Subs']' returned non-zero exit status 10

所以我尝试了 Try/except 但我认为我做的不对，有人可以帮助完成这个脚本的最后润色吗？

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1 回答 1

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当unrar 返回不为零的错误代码时check_call引发异常。CalledProcessError

您的错误消息显示：

返回非零退出状态 10

Rar.txt包含以下错误代码列表：（可在 WinRAR 安装文件夹中找到）

    Code   Description   

     0     Successful operation.
     1     Non fatal error(s) occurred.
     2     A fatal error occurred.
     3     Invalid checksum. Data is damaged.
     4     Attempt to modify an archive locked by 'k' command.
     5     Write error.
     6     File open error.
     7     Wrong command line option.
     8     Not enough memory.
     9     File create error
    10     No files matching the specified mask and options were found.
    11     Wrong password.
   255     User stopped the process.

我看到你-o-习惯“跳过现有文件”。尝试覆盖文件时。如果打包文件已经存在，则返回错误码 10。如果您立即重新运行脚本，则抛出此错误是正常的。

C:\>unrar e -o- testfile.rar

UNRAR 5.30 freeware      Copyright (c) 1993-2015 Alexander Roshal


Extracting from testfile.rar

No files to extract

C:\>echo %errorlevel%
10

你可能可以做这样的事情来处理它：

except CalledProcessError as cpe:
    if cpe.returncode == 10:
        print("File not overwritten")
    else:
        print("Some other error")

我看到你试图提取vobsubs。vobubs rar 中的 .sub rar 也有可能具有相同的文件名。

于 2016-10-16T00:37:09.463 回答