我在我的Mac上用一个小的Python脚本来拉链并加密它。这是我的Python代码：
import os
import subprocess
import zipfile
import sys
os.environ['ZIP_ENCRYPT_PASS'] = 'test'
password = os.environ['ZIP_ENCRYPT_PASS']
# Step 1: Encrypt the file using AES256
rc = subprocess.call(['/usr/local/Cellar/p7zip/16.02_1/bin/7z', 'a', '-mem=AES256', password, '-y', 'myarchive.zip'] +
['/Users/joe/Projects/Sandbox/python-projects/test.txt', '/Users/joe/Projects/Sandbox/python-projects/some.txt'])
我在指定的文件夹中有这两个文件，我想7zip并用密码加密它！
当我运行这个程序时，我得到以下内容：
Joes-MacBook-Pro:python-projects joe$ python ./test.py
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=utf8,Utf16=on,HugeFiles=on,64 bits,8 CPUs x64)
Scanning the drive:
WARNING: No more files
myarchive.zip
2 files, 245 bytes (1 KiB)
Creating archive: test.7z
Items to compress: 2
Scan WARNINGS for files and folders:
myarchive.zip : No more files
----------------
Scan WARNINGS: 1
System ERROR:
E_INVALIDARG
为什么这会失败？我有两个问题：
但我认为上面的代码应该可行，因为我可以通过在Mac上使用自制软件安装7zip来解决这两个问题。所以我做了：
brew install p7zip
然后我在子进程调用中给出了7z的路径。但是这仍然失败了！关于如何让它发挥作用的任何想法？
编辑：我刚刚检查了参数可能是什么，这是我得到的：
Joes-MacBook-Pro:bin joesan$ 7z --help
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=utf8,Utf16=on,HugeFiles=on,64 bits,8 CPUs x64)
Usage: 7z <command> [<switches>...] <archive_name> [<file_names>...]
[<@listfiles...>]
<Commands>
a : Add files to archive
b : Benchmark
d : Delete files from archive
e : Extract files from archive (without using directory names)
h : Calculate hash values for files
i : Show information about supported formats
l : List contents of archive
rn : Rename files in archive
t : Test integrity of archive
u : Update files to archive
x : eXtract files with full paths
<Switches>
-- : Stop switches parsing
-ai[r[-|0]]{@listfile|!wildcard} : Include archives
-ax[r[-|0]]{@listfile|!wildcard} : eXclude archives
-ao{a|s|t|u} : set Overwrite mode
-an : disable archive_name field
-bb[0-3] : set output log level
-bd : disable progress indicator
-bs{o|e|p}{0|1|2} : set output stream for output/error/progress line
-bt : show execution time statistics
-i[r[-|0]]{@listfile|!wildcard} : Include filenames
-m{Parameters} : set compression Method
-mmt[N] : set number of CPU threads
-o{Directory} : set Output directory
-p{Password} : set Password
-r[-|0] : Recurse subdirectories
-sa{a|e|s} : set Archive name mode
-scc{UTF-8|WIN|DOS} : set charset for for console input/output
-scs{UTF-8|UTF-16LE|UTF-16BE|WIN|DOS|{id}} : set charset for list files
-scrc[CRC32|CRC64|SHA1|SHA256|*] : set hash function for x, e, h commands
-sdel : delete files after compression
-seml[.] : send archive by email
-sfx[{name}] : Create SFX archive
-si[{name}] : read data from stdin
-slp : set Large Pages mode
-slt : show technical information for l (List) command
-snh : store hard links as links
-snl : store symbolic links as links
-sni : store NT security information
-sns[-] : store NTFS alternate streams
-so : write data to stdout
-spd : disable wildcard matching for file names
-spe : eliminate duplication of root folder for extract command
-spf : use fully qualified file paths
-ssc[-] : set sensitive case mode
-ssw : compress shared files
-stl : set archive timestamp from the most recently modified file
-stm{HexMask} : set CPU thread affinity mask (hexadecimal number)
-stx{Type} : exclude archive type
-t{Type} : Set type of archive
-u[-][p#][q#][r#][x#][y#][z#][!newArchiveName] : Update options
-v{Size}[b|k|m|g] : Create volumes
-w[{path}] : assign Work directory. Empty path means a temporary directory
-x[r[-|0]]{@listfile|!wildcard} : eXclude filenames
-y : assume Yes on all queries
我现在如何将此作为参数传递给子进程，以便我的Python代码可以工作？
你只需要使用正确的7z参数，
$ tree
.
├── bar
└── foo
0 directories, 2 files
$ python
Python 2.7.13 (default, Sep 26 2018, 18:42:22)
[GCC 6.3.0 20170516] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> zip_cmd = '7z a -mem=AES256 -pmy_password -tzip foo.zip foo bar'
>>> passwd = 'my_password'
>>> zip_cmd = ['/usr/bin/7z', 'a', '-mem=AES256', '-p{}'.format(passwd), '-tzip', 'foo.zip', 'foo', 'bar']
>>> zip_cmd
['/usr/bin/7z', 'a', '-mem=AES256', '-pmy_password', '-tzip', 'foo.zip', 'foo', 'bar']
>>> subprocess.call(zip_cmd)
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_IN.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz (206A7),ASM,AES-NI)
Scanning the drive:
2 files, 27 bytes (1 KiB)
Creating archive: foo.zip
Items to compress: 2
Files read from disk: 2
Archive size: 385 bytes (1 KiB)
Everything is Ok
0
>>> import os
>>> os.listdir('.')
['bar', 'foo', 'foo.zip']
>>>
>>> os.mkdir('test')
>>> os.listdir('.')
['bar', 'test', 'foo', 'foo.zip']
>>> import shutil
>>> shutil.copy('foo.zip', 'test')
>>> os.chdir('test')
>>> os.listdir('.')
['foo.zip']
>>> os.getcwd()
'/home/telaverge/python/purge/test'
>>> unzip_cmd = ['/usr/bin/7z', 'x', 'foo.zip', '-p{}'.format(passwd)]
>>> unzip_cmd
['/usr/bin/7z', 'x', 'foo.zip', '-pmy_password']
>>> subprocess.call(unzip_cmd)
7-Zip [64] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_IN.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz (206A7),ASM,AES-NI)
Scanning the drive for archives:
1 file, 385 bytes (1 KiB)
Extracting archive: foo.zip
--
Path = foo.zip
Type = zip
Physical Size = 385
Everything is Ok
Files: 2
Size: 27
Compressed: 385
0
>>> os.listdir('.')
['bar', 'foo', 'foo.zip']