zip "gbk" decode request?

[FlotingDream]

Achive file with chinese character name file in it unpack will give wrong results, zip "gbk" decode request?

Achive:
test.zip

├─test
│ └─测试 （subfolder with chinese name）
│ └─test
│ test.txt
│ 测试.txt （file with chinese name）

after
arch = pyunpack.Archive()
arch.extractall()

will get

└─test
│ └─▓Γ╩╘
│ └─test
│ test.txt
│ ▓Γ╩╘.txt

All with chinese name will goes wrong!

test.zip

===========================

And pyunpack seems cannot handle 7z?
log:
patool can not unpack
patool error: error extracting could not find an executable program to extract format 7z; candidates are (7z,7za,7zr)