A replacement for the builtin zipfile module, with fast, C-based zipfile decryption
czipfile is a replacement for Python’s builtin “zipfile” module, and provides much faster, C-based zipfile decryption. The code is actually 95% identical to Python 2.6.5’s Lib/zipfile.py, with some very minor modifications to allow it to compile in Cython, and the _ZipDecrypter class adapted to take advantage of native C datatypes.
Many thanks to _habnabit from #python in Freenode for pointing me in the right direction in Cython.
$ python setup.py build # python setup.py install
Or, if you use easy_install:
# easy_install czipfile
Or, if you use pip:
# pip install czipfile
Cython is not required to build the extension, though if you want to make any changes you’ll want to edit the .pyx and install Cython rather than trying to edit the generated .c file.
Included in the source distribution is a patch versus Python 2.6.5’s Lib/zipfile.py which can be used to create czipfile.pyx, if you want.
This package might require Python 2.6; I haven’t tested it in earlier Python versions.
I’ve put this release under the Python Software Foundation License, specifically the 2.6.2 version. I believe this to be the most appropriate license for the code, given its lineage, though if I should just use GPLv3 instead, feel free to let me know.
CJ Kucera <pez at apocalyptech dot com>
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