#!/usr/bin/python3


import argparse


def main():
    parser = argparse.ArgumentParser(allow_abbrev=False)
    
    parser_process_pathnames = argparse.ArgumentParser(allow_abbrev=False, add_help=False)
    parser_process_pathnames_input = parser_process_pathnames.add_argument_group(title="INPUT", description="bla")
    
    parser_process_pathnames_input.add_argument("pathnames", nargs="*", type=str, help="pathnames of files to be processed", metavar="PATHNAME")
    parser_process_pathnames_input_mut_excl = parser_process_pathnames_input.add_mutually_exclusive_group()
    parser_process_pathnames_input_mut_excl.add_argument("--from-args", action="store_true", help="")
    parser_process_pathnames_input_mut_excl.add_argument("--from-files", action="store_true", help="")
    parser_process_pathnames_input_mut_excl.add_argument("--from-stdin", action="store_true", help="")
    parser_process_pathnames_input.add_argument("--input-pathname-separator", default="XXXXXXX", help="")
    
    subparsers = parser.add_subparsers(required=True, dest="subcommand_name", description="Determine the program’s main action.", help="Name of the subcommand to be executed. One of:", metavar="SUBCOMMAND")
    
    subparser_set = subparsers.add_parser("set", help="", parents=[parser_process_pathnames], allow_abbrev=False)
    
    subparser_verify = subparsers.add_parser("verify", aliases=["check"], help="", parents=[parser_process_pathnames], allow_abbrev=False)
    
    args = parser.parse_args()
    
    
    
    
    
if __name__ == "__main__":
    main()