Python: Use zipfile to unzip from standard input

If there is standard input, unzip argv [1] from there.

Specify the unzip destination with --dst. The default ./_unzip directory. If you add --setup, it will be put in $ VIRTUAL_ENV / bin / uz.py so that the path will pass, but I'm not sure about setup () so it's appropriate:

    from zipfile import ZipFile
    import os
    import sys
    from StringIO import StringIO
    
    
    def unzip(src,outdir='.'):
        _unzip = lambda z,out : map(lambda n:  z.extract(n, out),
                                    z.namelist())
    
        if not os.path.exists(outdir):
            os.makedirs(outdir)
        
        if not sys.stdin.isatty() :
            _unzip(ZipFile(StringIO(sys.stdin.read())), outdir)
        
        elif src:
            with open(src) as stream:
                _unzip(ZipFile(stream), outdir)
        
    
    def main():
        from argparse import ArgumentParser
        parser = ArgumentParser(description='Unzip stdin or specifile file.')
        parser.add_argument('zipfile', metavar='ZIPFILE', type=str, nargs='?',
                       help='File to be unziped.')
    
        parser.add_argument('--dst', dest='destination',
                            default='_unzip', required=False, )
    
        parser.add_argument('--setup', dest='setup', action='store_true',
                            required=False, )
    
    
        args = parser.parse_args()
    
        if args.setup:
            sys.argv = [__file__,'install']
            setup_me() 
        else:
            unzip(args.zipfile, args.destination)
    
    def setup_me():
        from setuptools import setup
    
        setup(
            name = 'uz.py',
            version = "1",
            license = 'Simplfied BSD License',
            author = 'Hideki Nara of LaFoaglia,Inc.',
            author_email = 'gmail [at] hdknr.com',
            maintainer = 'LaFoglia,Inc.',
            maintainer_email = 'gmail [at] hdknr.com',
            description = "uz : Unzip",
            long_description = "unzip script",
            platforms=['any'],
            classifiers = [
                'Development Status :: 4 - Beta',
                'Environment :: Library',
                'Intended Audience :: Developers',
                'License :: OSI Approved :: Simplifed BSD License',
                'Natural Language :: English',
                'Operating System :: OS Independent',
                'Programming Language :: Python',
            ],
            scripts= [os.path.abspath(__file__)]
        )
    
    if __name__ == '__main__':
        main()