def main():
    parser = argparse.ArgumentParser(prog='enjarify', description='Translates Dalvik bytecode (.dex or .apk) to Java bytecode (.jar)')
    parser.add_argument('inputfile')
    parser.add_argument('-o', '--output', help='Output .jar file. Default is [input-filename]-enjarify.jar.')
    parser.add_argument('-f', '--force', action='store_true', help='Force overwrite. If output file already exists, this option is required to overwrite.')
    parser.add_argument('--fast', action='store_true', help='Speed up translation at the expense of generated bytecode being less readable.')
    args = parser.parse_args()

    dexs = []
    if args.inputfile.lower().endswith('.apk'):
        with zipfile.ZipFile(args.inputfile, 'r') as z:
            for name in z.namelist():
                if name.startswith('classes') and name.endswith('.dex'):
                    dexs.append(z.read(name))
    else:
        dexs.append(read(args.inputfile))

    # Exclusive mode requires 3.3+, so provide helpful error in this case
    if not args.force:
        try:
            FileExistsError
        except __HOLE__:
            print('Overwrite protection requires Python 3.3+. Either pass -f or --force, or upgrade to a more recent version of Python. If you are using Pypy3 2.4, you need to switch to a nightly build or build from source. Or just pass -f.')
            return

    # Might as well open the output file early so we can detect existing file error
    # before going to the trouble of translating everything
    outname = args.output or args.inputfile.rpartition('/')[-1].rpartition('.')[0] + '-enjarify.jar'
    try:
        outfile = open(outname, mode=('wb' if args.force else 'xb'))
    except FileExistsError:
        print('Error, output file already exists and --force was not specified.')
        print('To overwrite the output file, pass -f or --force.')
        return

    opts = options.NONE if args.fast else options.PRETTY
    classes = collections.OrderedDict()
    errors = collections.OrderedDict()
    for data in dexs:
        translate(data, opts=opts, classes=classes, errors=errors)
    writeToJar(outfile, classes)
    outfile.close()
    print('Output written to', outname)

    for name, error in sorted(errors.items()):
        print(name, error)
    print('{} classes translated successfully, {} classes had errors'.format(len(classes), len(errors)))
dataset/ETHPy150Open ajinabraham/Mobile-Security-Framework-MobSF/StaticAnalyzer/tools/enjarify/enjarify/main.py/main