def main(): parser = argparse.ArgumentParser(description='Scribd Downloader') parser.add_argument('url', type=str, help='URL of the Scribd document') parser.add_argument('-o', '--output', type=str, default='document.pdf', help='Output file name') args = parser.parse_args() if not os.path.exists(args.output): download_scribd_doc(args.url, args.output) else: print("Output file already exists.")