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python-lib7zip

Python bindings for 7-Zip

Author: Mark Harviston <mark.harviston@gmail.com>
Version: 0.1

pylib7zip is a direct binding to 7z.dll from the 7-zip project (7zip.org)

7z.dll uses Windows COM+ calling conventions without registering itself with the COM server and has an over-engineered slightly pathological OOP API.

Currently only works on Windows with Python 3.3.

This provides roughly the same functionality as lib7zip does for C++ and SevenZipSharp does for C# but with a clean Pythonic API.

Like lib7zip getting metadata and extracting files are the only operations supported, creating archives, or updating them in-place is not supported.

This is beta software and may crash if used in an unusual (or even a usual) way.

Dependencies

How To Use

By default the path to 7z.dll/7z.so will be autodetected.

import io
from lib7zip import Archive, formats
#view information on supported formats
for format in formats:
        print(format.name, ', '.join(format.extensions))

#type of archive will be autodetected
#pass in optional forceformat argument to force the use a particular format (use the name)
#pass in optional password argument to open encrypted archives.
with Archive('path_to.7z') as archive:
        #extract all items to the directory, directory will be created if it doesn't exist
        archive.extract('extract_here')

        #list all items in the archive and get their metadata
        for item in archive:
                print( item.isdir, item.path, item.crc)

        #extract a particular archive item
        # like extract, accepts a password argument, useful if different
        # items in the archive have different passwords
        archive[0].extract('extract to here.txt')

        #extract a particular archive item to a python stream object
        stream = io.BytesIO()
        archive[0].extract(stream)
        stream.getvalue()  # a bytes object containing the contents of item 0

License

This code is licensed under the BSD 2-clause license.

7-Zip is licensed under the LGPL with the exception of the code handling rar compression.

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Python bindings for lib7zip

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