human
Can you provide a the Python code you requested given the following:
Complete the below
def main():

    ''''The main() function implements all of the logic that the GUI version of onionshare uses.'
    '''
assistant
#Here is the Python code you requested.
    strings.load_strings(common)
    print strings._('version_string').format(common.get_version())
    global qtapp
    qtapp = Application()
    parser = argparse.ArgumentParser()
    parser.add_argument('--local-only', action='store_true', dest='local_only', help=strings._('help_local_only'))
    parser.add_argument('--stay-open', action='store_true', dest='stay_open', help=strings._('help_stay_open'))
    parser.add_argument('--debug', action='store_true', dest='debug', help=strings._('help_debug'))
    parser.add_argument('--filenames', metavar='filenames', nargs='+', help=strings._('help_filename'))
    parser.add_argument('--config', metavar='config', default=False, help=strings._('help_config'))
    args = parser.parse_args()
    filenames = args.filenames
    if filenames:
        for i in range(len(filenames)):
            filenames[i] = os.path.abspath(filenames[i])
    config = args.config
    local_only = bool(args.local_only)
    stay_open = bool(args.stay_open)
    debug = bool(args.debug)
    if debug:
        common.set_debug(debug)
        web.debug_mode()
    if filenames:
        valid = True
        for filename in filenames:
            if (not os.path.exists(filename)):
                Alert(strings._('not_a_file', True).format(filename))
                valid = False
            if (not os.access(filename, os.R_OK)):
                Alert(strings._('not_a_readable_file', True).format(filename))
                valid = False
        if (not valid):
            sys.exit()
    onion = Onion()
    web.set_stay_open(stay_open)
    app = OnionShare(onion, local_only, stay_open)
    gui = OnionShareGui(onion, qtapp, app, filenames, config)
    def shutdown():
        onion.cleanup()
        app.cleanup()
    qtapp.aboutToQuit.connect(shutdown)
    sys.exit(qtapp.exec_())