Python argparse.ArgumentParser() Examples

def main(arguments):
    parser = argparse.ArgumentParser()
    parser.add_argument('--data_dir', help='directory to save data to', type=str, default='glue_data')
    parser.add_argument('--tasks', help='tasks to download data for as a comma separated string',
                        type=str, default='all')
    parser.add_argument('--path_to_mrpc',
                        help='path to directory containing extracted MRPC data, msr_paraphrase_train.txt and msr_paraphrase_text.txt',
                        type=str, default='')
    args = parser.parse_args(arguments)

    if not os.path.isdir(args.data_dir):
        os.mkdir(args.data_dir)
    tasks = get_tasks(args.tasks)

    for task in tasks:
        if task == 'MRPC':
            format_mrpc(args.data_dir, args.path_to_mrpc)
        elif task == 'diagnostic':
            download_diagnostic(args.data_dir)
        else:
            download_and_extract(task, args.data_dir) 

def cli_args(
    args: Sequence[str], ini_config_file: Path = Path("mutatest.ini")
) -> argparse.Namespace:
    """Command line arguments as parsed args.

    If a INI configuration file is set it is used to set additional default arguments, but
    the CLI arguments override any INI file settings.

    Args:
        args: the argument sequence from the command line
        ini_config_file: the ini config file for the default settings

    Returns:
        Parsed args from ArgumentParser
    """
    parser = cli_parser()

    if ini_config_file.exists():
        ini_config = read_ini_config(ini_config_file)
        ini_cli_args = parse_ini_config_with_cli(parser, ini_config, args)
        return parser.parse_args(ini_cli_args)

    return parser.parse_args(args) 

def main():

    # input parameters
    parser = argparse.ArgumentParser(description="Worker Ingest Framework")
    parser.add_argument('-t', '--type', dest='type', required=True,
                        help='Type of data that will be ingested (Pipeline Configuration)',
                        metavar='')
    parser.add_argument('-i', '--id', dest='id', required=True,
                        help='Worker Id, this is needed to sync Kafka and Ingest framework (Partition Number)',
                        metavar='')
    parser.add_argument('-top', '--topic', dest='topic', required=True,
                        help='Topic to read from.', metavar="")
    parser.add_argument('-p', '--processingParallelism', dest='processes',
                        required=False, help='Processing Parallelism', metavar="")
    args = parser.parse_args()

    # start worker based on the type.
    start_worker(args.type, args.topic, args.id, args.processes) 

def main():
    """
    Handle commandline arguments and
    start the collector.
    """
    # input Parameters
    parser = argparse.ArgumentParser(description="Bluecoat Parser")
    parser.add_argument('-zk', '--zookeeper', dest='zk', required=True,
                        help='Zookeeper IP and port (i.e. 10.0.0.1:2181)', metavar='')
    parser.add_argument('-t', '--topic', dest='topic', required=True,
                        help='Topic to listen for Spark Streaming', metavar='')
    parser.add_argument('-db', '--database', dest='db', required=True,
                        help='Hive database whete the data will be ingested', metavar='')
    parser.add_argument('-dt', '--db-table', dest='db_table', required=True,
                        help='Hive table whete the data will be ingested', metavar='')
    parser.add_argument('-w', '--num_of_workers', dest='num_of_workers', required=True,
                        help='Num of workers for Parallelism in Data Processing', metavar='')
    parser.add_argument('-bs', '--batch-size', dest='batch_size', required=True,
                        help='Batch Size (Milliseconds)', metavar='')
    args = parser.parse_args()

    # start collector based on data source type.
    bluecoat_parse(args.zk, args.topic, args.db, args.db_table, args.num_of_workers, args.batch_size) 

def main():

    # input Parameters
    parser = argparse.ArgumentParser(description="Master Collector Ingest Daemon")
    parser.add_argument('-t', '--type', dest='type', required=True,
                        help='Type of data that will be ingested (Pipeline Configuration)',
                        metavar='')
    parser.add_argument('-w', '--workers', dest='workers_num',
                        required=True, help='Number of workers for the ingest process',
                        metavar='')
    parser.add_argument('-id', '--ingestId', dest='ingest_id',
                        required=False, help='Ingest ID', metavar='')
    args = parser.parse_args()

    # start collector based on data source type.
    start_collector(args.type, args.workers_num, args.ingest_id) 

def arg_parser():
    parser = argparse.ArgumentParser(description='A tool for putting websites into a black hole.')
    commands = parser.add_subparsers(title='commands', metavar='COMMAND')
    commands.required = True
    commands.dest = "commands"

    deny = commands.add_parser('deny', description='Add a site to the black hole. It will become unreachable.', help='Add a site to the black hole. It will become unreachable.')
    deny.add_argument('sitename', help='The website to be blackholed. A URL will be stripped down correctly.')
    deny.set_defaults(func=deny_site)

    allow = commands.add_parser('allow', description='Allow access to a blackholed site for a spell.', help='Allow access to a blackholed site for a spell.')
    time_or_tomorrow = allow.add_mutually_exclusive_group()
    time_or_tomorrow.add_argument('-t', '--time', help='sets the duration to enable a site for. Default is five minutes.', default=5, type=int)
    time_or_tomorrow.add_argument('-m', '--morning', help='allow all sites until tomorrow morning at 6am', action='store_true')
    all_or_one = allow.add_mutually_exclusive_group(required=True)
    all_or_one.add_argument('-a', '--all', action='store_true', help='All blackholed hostnames will be granted access instead of a matching sitename.')
    all_or_one.add_argument('sitename', help='All blackholed hostnames that contain this string will be temporarlly granted access.', nargs='?')
    allow.set_defaults(func=allow_site)

    return parser 

def build_arg_parser(description, env_vars={}):
    from argparse import ArgumentParser, RawDescriptionHelpFormatter
    from textwrap import dedent

    base_env_vars = {
        'MONO_SOURCE_ROOT': 'Overrides default value for --mono-sources',
    }

    env_vars_text = '\n'.join(['    %s: %s' % (var, desc) for var, desc in env_vars.items()])
    base_env_vars_text = '\n'.join(['    %s: %s' % (var, desc) for var, desc in base_env_vars.items()])

    epilog=dedent('''\
environment variables:
%s
%s
''' % (env_vars_text, base_env_vars_text))

    return ArgumentParser(
        description=description,
        formatter_class=RawDescriptionHelpFormatter,
        epilog=epilog
    ) 

def main():
    parser = argparse.ArgumentParser()
    # --- input/output --- #
    parser.add_argument(
        'output', metavar='O', type=str,
        help='output path specifying location in which to problem.')
    # --- problem parameters --- #
    parser.add_argument(
        'm', metavar='rows', type=int, help='number of rows in data matrix')
    parser.add_argument(
        'n', metavar='cols', type=int, help='number of variables')
    parser.add_argument(
        '-d', '--density', type=float, default=.01, help='density of data '
        'matrix A')
    args = parser.parse_args()

    path = check_path(args.output)
    lp = random_linear_program(m=args.m, n=args.n, density=args.density)
    save_problem(path, lp) 

def _main(argv=None):
    parser = argparse.ArgumentParser(prog="python -m ensurepip._uninstall")
    parser.add_argument(
        "--version",
        action="version",
        version="pip {}".format(ensurepip.version()),
        help="Show the version of pip this will attempt to uninstall.",
    )
    parser.add_argument(
        "-v", "--verbose",
        action="count",
        default=0,
        dest="verbosity",
        help=("Give more output. Option is additive, and can be used up to 3 "
              "times."),
    )

    args = parser.parse_args(argv)

    ensurepip._uninstall_helper(verbosity=args.verbosity) 

def test(self):

        def get_my_type(string):
            return 'my_type{%s}' % string

        parser = argparse.ArgumentParser()
        parser.register('type', 'my_type', get_my_type)
        parser.add_argument('-x', type='my_type')
        parser.add_argument('y', type='my_type')

        self.assertEqual(parser.parse_args('1'.split()),
                         NS(x=None, y='my_type{1}'))
        self.assertEqual(parser.parse_args('-x 1 42'.split()),
                         NS(x='my_type{1}', y='my_type{42}'))


# ============
# Action tests
# ============ 

def test_misc(self):
        parser = argparse.ArgumentParser()
        action = parser.add_argument('--foo', nargs='?', const=42,
                                     default=84, type=int, choices=[1, 2],
                                     help='FOO', metavar='BAR', dest='baz')
        self.assertEqual(action.nargs, '?')
        self.assertEqual(action.const, 42)
        self.assertEqual(action.default, 84)
        self.assertEqual(action.type, int)
        self.assertEqual(action.choices, [1, 2])
        self.assertEqual(action.help, 'FOO')
        self.assertEqual(action.metavar, 'BAR')
        self.assertEqual(action.dest, 'baz')


# ================================
# Argument conflict handling tests
# ================================ 

def monster_lookup():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
        description=(
            """Searches Roll20.net 5e monster compendium for the term queried."""))
    parser.add_argument('query', nargs='+', help='The words to search')

    args = parser.parse_args()
    text = ' '.join(args.query)

    try:
        item = Roll20Monster(text)
    except IOError as e:
        print(e)
        item = None
    if item is None or len(item) == 0:
        return False
    else:
        try:
            print(item)
        except UnicodeEncodeError:
            print(item.as_unicode)
        return True 

def item_lookup():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
        description=(
            """Searches Roll20.net 5e Item compendium for the term queried."""))
    parser.add_argument('query', nargs='+', help='The words to search')

    args = parser.parse_args()
    text = ' '.join(args.query)
    
    try:
        item = Roll20Item(text)
    except IOError as e:
        print(e)
        item = None
    if item is None or len(item) == 0:
        return False
    else:
        try:
            print(item)
        except UnicodeEncodeError:
            print(item.as_unicode)
        return True 

def cli(
    data: dict,
    parser_class: Callable = argparse.ArgumentParser,
    parents: Optional[list] = None,
):
    """Create a cli application.

    This is the entrypoint.
    """
    global config
    config = init_config()
    data = deepcopy(data)

    if data.get("prefix_chars"):
        config.update({"prefix_chars": data.get("prefix_chars")})

    parser = add_parser(data, parser_class, parents)
    return parser 

def parse_args(self, lora):
        """ Parse the args, perform some sanity checks and configure the LoRa accordingly.
        :param lora: Reference to LoRa object
        :return: args
        """
        args = argparse.ArgumentParser.parse_args(self)
        args.bw = self.bw_lookup.get(args.bw, None)
        args.coding_rate = self.cr_lookup.get(args.coding_rate, None)
        # some sanity checks
        assert(args.bw is not None)
        assert(args.coding_rate is not None)
        assert(args.sf >=6 and args.sf <= 12)
        # set the LoRa object
        lora.set_freq(args.freq)
        lora.set_preamble(args.preamble)
        lora.set_spreading_factor(args.sf)
        lora.set_bw(args.bw)
        lora.set_coding_rate(args.coding_rate)
        lora.set_ocp_trim(args.ocp)
        return args 

def main():
   parser = argparse.ArgumentParser(description="Edit Arista ACLs using your local editor")
   parser.add_argument("acl", metavar="ACL",
                       help="Name of the access list to modify")
   parser.add_argument("switches", metavar="SWITCH", nargs="+",
                       help="Hostname or IP of the switch to query")
   parser.add_argument("--username", help="Name of the user to connect as",
                       default="admin")
   parser.add_argument("--password", help="The user's password")
   parser.add_argument("--https", help="Use HTTPS instead of HTTP",
                       action="store_const", const="https", default="http")
   args = parser.parse_args()

   aclName = args.acl
   tmpfile = "/tmp/AclEditor-%s" % aclName
   apiEndpoints = getEndpoints(args.switches, args.https,
                               args.username, args.password)
   prepopulateAclFile(tmpfile, aclName, apiEndpoints)
   edits = getEdits(tmpfile)
   applyChanges(aclName, apiEndpoints, edits)
   print
   print "Done!" 

def parse_args():
    parser = argparse.ArgumentParser(description = "Bass")
    parser.add_argument("-v", "--verbose", action = "count", default = 0, help = "Increase verbosity")
    parser.add_argument("samples", metavar = "sample", nargs = "+", help = "Sample path") 

    args = parser.parse_args()

    try:
        loglevel = {
            0: logging.ERROR,
            1: logging.WARN,
            2: logging.INFO
        }[args.verbose]
    except KeyError:
        loglevel = logging.DEBUG

    logging.basicConfig(level = loglevel)
    logging.getLogger().setLevel(loglevel)

    return args 

def parse_args():
    parser = argparse.ArgumentParser(description = "Add samples to BASS whitelist")
    parser.add_argument("-v", "--verbose", action = "count", default = 0, help = "Increase verbosity")
    parser.add_argument("--url", type = str, default = "http://localhost:5000", help = "URL of BASS server")
    parser.add_argument("sample", help = "Whitelist sample")

    args = parser.parse_args()

    try:
        loglevel = {
            0: logging.ERROR,
            1: logging.WARN,
            2: logging.INFO}[args.verbose]
    except KeyError:
        loglevel = logging.DEBUG
    logging.basicConfig(level = loglevel)
    logging.getLogger().setLevel(loglevel)

    return args 

def parse_args():
    parser = argparse.ArgumentParser(description = "Find common ngrams in binary files")
    parser.add_argument("-v", "--verbose", action = "count", default = 0, help = "Increase verbosity")
    parser.add_argument("--output", type = str, default = None, help = "Output to file instead of stdout")
    parser.add_argument("--url", type = str, default = "http://localhost:5000", help = "URL of BASS server")
    parser.add_argument("samples", metavar = "sample", nargs = "+", help = "Cluster samples")

    args = parser.parse_args()

    try:
        loglevel = {
            0: logging.ERROR,
            1: logging.WARN,
            2: logging.INFO}[args.verbose]
    except KeyError:
        loglevel = logging.DEBUG
    logging.basicConfig(level = loglevel)
    logging.getLogger().setLevel(loglevel)

    return args 

def parse_args():
    parser = argparse.ArgumentParser(description = "IDA Pro script: Dump bindiff database file")
    subparsers = parser.add_subparsers(help = "subcommand")
    
    parser_pickle = subparsers.add_parser("pickle", help = "Dump pickled database")
    parser_pickle.add_argument("pickle_output", type = str, help = "Output pickle database file")
    parser_pickle.set_defaults(handler = handle_pickle)

    parser_bindiff = subparsers.add_parser("binexport", help = "Dump bindiff database")
    parser_bindiff.add_argument("bindiff_output", type = str, help = "Output BinExport database file")
    parser_bindiff.set_defaults(handler = handle_binexport)

    parser_bindiff_pickle = subparsers.add_parser("binexport_pickle", help = "Dump bindiff database and pickled database")
    parser_bindiff_pickle.add_argument("bindiff_output", type = str, help = "Output BinDiff database file")
    parser_bindiff_pickle.add_argument("pickle_output", type = str, help = "Output pickle database file")
    parser_bindiff_pickle.set_defaults(handler = handle_binexport_pickle)

    args = parser.parse_args(idc.ARGV[1:])

    return args 

def run():
    parser = argparse.ArgumentParser(description='Calculate net-worth of a Freifunk community')
    parser.add_argument('--url', help='URL to evaluate')
    parser.add_argument('--output-json', help='Stats as JSON', action='store_true')
    parser.add_argument('--exclude-domain', help='Domains to exclude for calculation', action="append")
    args = parser.parse_args()

    if args.url:
        result = load(args.url, args.exclude_domain)
    else:
        parser.print_help()
        sys.exit(1)

    if not result:
        print("No nodes found", file=sys.stderr)
        sys.exit(2)

    model_information = load_devices_json(get_data_path('devices.json'))
    community_information = gather_information(model_information, result)

    print_information(args.url, community_information, not args.output_json) 

def main():
    """RelayBot 2.0 main entry point.
    Creates a new instance of the bot and runs it.
    """
    parser = argparse.ArgumentParser()
    parser.add_argument("--logfile", help="rotating log filename")
    args = parser.parse_args()

    bot = Bot(args.logfile)

    logger.info("Starting Relay Bot 2.0")
    logger.info("Version: {}.{}".format(VERSION[0], VERSION[1]))

    bot.initialize()

    bot.run() 

def __init__(self):
        parser = argparse.ArgumentParser()
        parser.add_argument('--username')
        parser.add_argument('--password')
        parser.add_argument('--address')
        parser.add_argument('--port')
        parser.add_argument('--database')

        subparsers = parser.add_subparsers()

        for name in dir(self):
            if not name.startswith("_"):
                p = subparsers.add_parser(name)
                method = getattr(self, name)
                argnames = inspect.getargspec(method).args[1:]
                for argname in argnames:
                    p.add_argument(argname)
                p.set_defaults(func=method, argnames=argnames)
        self.args = parser.parse_args() 

def get_args():
    parser = argparse.ArgumentParser()
    arg = parser.add_argument
    arg("-c", "--config_path", type=Path, required=True, help="Path to  config")
    arg("-i", "--input_path", type=Path, required=True, help="Path to the target image folder.")
    arg("-j", "--num_workers", type=int, help="Number of CPU threads.", default=12)
    arg("-o", "--output_path", type=Path, help="Path where to save resulting masks.", required=True)
    arg("-w", "--checkpoint", type=Path, help="Path to checkpoint.", required=True)
    arg("-b", "--batch_size", type=int, help="Batch_size.", default=1)
    arg("-t", "--tta", help="Test time augmentation.", default=None, choices=[None, "d4", "lr"])
    arg("-v", "--visualize", help="If add visualized predictions.", action="store_true")
    return parser.parse_args() 

def get_args():
    parser = argparse.ArgumentParser()
    arg = parser.add_argument
    arg("-c", "--config_path", type=Path, help="Path to the config.", required=True)
    arg("-j", "--num_workers", type=int, help="Number of CPU threads.", default=12)
    arg("-r", "--checkpoint_path", type=Path, default=None, help="Path to checkout.")
    return parser.parse_args() 

def parse_opts(argv):
    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    parser.add_argument(
        '--fd', type=int, action='append', default=[],
        help='FDs will be provided to the wrapped process with sequential '
            'numbers starting from 3, in the order they were listed on '
            'the command-line. Repeat to pass multiple FDs.',
    )
    parser.add_argument(
        '--sudo', action='store_true',
        help='Wrap `recv-fds-and-run` with `sudo`, effectively emulating the '
            'behavior of `sudo -C`. See `--sudo-arg` if you need to '
            'pass arguments to `sudo`. Without this option, this CLI is a '
            'very elaborate way of remapping the listed FDs and closing all '
            'others.',
    )
    parser.add_argument(
        '--sudo-arg', action='append', default=[],
        help='Pass this argument to `sudo` on the command-line.'
    )
    parser.add_argument(
        '--no-set-listen-fds', action='store_false', dest='set_listen_fds',
        help='Do not set LISTEN_FDS and LISTEN_PID on the wrapped process. By '
            'default we set these just in case this wraps `systemd-nspawn` -- '
            'that tells it to forward our FDS to the container. If the extra '
            'environment variables are a problem for you, pass this option.',
    )
    parser.add_argument(
        'cmd', nargs='+', help='The command to wrap and supply with FDs.',
    )
    opts = parser.parse_args(argv)
    assert not opts.sudo_arg or opts.sudo, '--sudo-arg requires --sudo'
    return opts 

def parse_opts(argv):
    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    parser.add_argument(
        '--unix-sock', required=True,
        help='Connect to the unix socket at this path to receive FDs.',
    )
    parser.add_argument(
        '--num-fds', type=int, required=True,
        help='The number of FDs to inject, from 3 through (3 + NUM_FDS - 1).',
    )
    parser.add_argument(
        '--no-set-listen-fds', action='store_false', dest='set_listen_fds',
        help='Do not set LISTEN_FDS and LISTEN_PID on the wrapped process. By '
            'default we set these just in case this wraps `systemd-nspawn` -- '
            'that tells it to forward our FDS to the container. If the extra '
            'environment variables are a problem for you, pass this option.',
    )
    parser.add_argument(
        'cmd', nargs='+', help='The command to wrap and supply with FDs.',
    )
    return parser.parse_args(argv)


# This cannot be tested as a library since it `exec`s and rewrites the file
# descriptor table.  However, `test_send_fds_and_run.py` covers this fully. 

def main(argv, from_file: BytesIO, to_file: BytesIO):
    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    Storage.add_argparse_arg(
        parser, '--storage', required=True,
        help='JSON blob for creating a Storage instance.',
    )
    parser.add_argument('--debug', action='store_true', help='Log more?')
    subparsers = parser.add_subparsers(help='Sub-commands have help.')

    parser_get = subparsers.add_parser('get', help='Download blob to stdout')
    parser_get.add_argument('storage_id', help='String of the form KEY:ID')
    parser_get.set_defaults(to_file=to_file)
    parser_get.set_defaults(func=get)

    parser_put = subparsers.add_parser(
        'put', help='Write a blob from stdin, print its ID to stdout',
    )
    parser_put.set_defaults(from_file=from_file)
    parser_put.set_defaults(to_file=to_file)  # For the storage ID
    parser_put.set_defaults(func=put)

    args = parser.parse_args(argv)
    init_logging(debug=args.debug)

    args.func(args) 

def parse_args(argv):
    parser = argparse.ArgumentParser(
        description=__doc__,
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    parser.add_argument(
        '--refcounts-dir', required=True,
        help='We will create a hardlink to `--new-subvolume-json` in this '
            'directory. For that reason, this needs to be on same device, '
            'and thus cannot be under `--subvolumes-dir`',
    )
    parser.add_argument(
        '--subvolumes-dir', required=True,
        help='A directory on a btrfs volume, where all the subvolume wrapper '
            'directories reside.',
    )
    parser.add_argument(
        '--new-subvolume-wrapper-dir',
        help='Subvolumes live inside wrapper directories, following the '
            'convention <name>:<version>/<name>. This parameter should '
            'consist just of the <name>:<version> part.',
    )
    parser.add_argument(
        '--new-subvolume-json',
        help='We will delete any file at this path, then create an empty one, '
            'and hard-link into `--refcounts-dir` for refcounting purposes. '
            'The image compiler will then write data into this file.',
    )
    return parser.parse_args(argv) 

def main():
    parser = argparse.ArgumentParser(description="Convert ntp configuration to chrony.")
    parser.add_argument("-r", "--root", dest="roots", default=["/"], nargs="+",
                        metavar="DIR", help="specify root directory (default /)")
    parser.add_argument("--ntp-conf", action="store", default="/etc/ntp.conf",
                        metavar="FILE", help="specify ntp config (default /etc/ntp.conf)")
    parser.add_argument("--step-tickers", action="store", default="",
                        metavar="FILE", help="specify ntpdate step-tickers config (no default)")
    parser.add_argument("--chrony-conf", action="store", default="/etc/chrony.conf",
                        metavar="FILE", help="specify chrony config (default /etc/chrony.conf)")
    parser.add_argument("--chrony-keys", action="store", default="/etc/chrony.keys",
                        metavar="FILE", help="specify chrony keyfile (default /etc/chrony.keys)")
    parser.add_argument("-b", "--backup", action="store_true", help="backup existing configs before writing")
    parser.add_argument("-L", "--ignored-lines", action="store_true", help="print ignored lines")
    parser.add_argument("-D", "--ignored-directives", action="store_true",
                        help="print names of ignored directives")
    parser.add_argument("-n", "--dry-run", action="store_true", help="don't make any changes")
    parser.add_argument("-v", "--verbose", action="count", default=0, help="increase verbosity")

    args = parser.parse_args()

    logging.basicConfig(format="%(message)s",
                        level=[logging.ERROR, logging.INFO, logging.DEBUG][min(args.verbose, 2)])

    for root in args.roots:
        conf = NtpConfiguration(root, args.ntp_conf, args.step_tickers)

        if args.ignored_lines:
            for line in conf.ignored_lines:
                print(line)

        if args.ignored_directives:
            for directive in conf.ignored_directives:
                print(directive)

        conf.write_chrony_configuration(args.chrony_conf, args.chrony_keys, args.dry_run, args.backup) 

def mock_parser():
    """Mock parser."""
    parser = argparse.ArgumentParser(prog="mock_parser", description=("Mock parser"))
    parser.add_argument("-e", "--exclude", action="append", default=[], help="Append")
    parser.add_argument("-b", "--blacklist", nargs="*", default=[], help="Nargs")
    parser.add_argument("--debug", action="store_true", help="Store True.")

    return parser 

def _parse_args():
    '''
        Parse command-line options found in 'args' (default: sys.argv[1:]).

    :returns: On success, a namedtuple of Values instances.
    '''
    parser   = ArgumentParser('Distributed Collector Daemon of Apache Spot', epilog='END')
    required = parser.add_argument_group('mandatory arguments')

    # .................................state optional arguments
    parser.add_argument('-c', '--config-file',
        default='ingest_conf.json',
        type=file,
        help='path of configuration file',
        metavar='')

    parser.add_argument('-l', '--log-level',
        default='INFO',
        help='determine the level of the logger',
        metavar='')

    parser.add_argument('--skip-conversion',
        action='store_true',
        default=False,
        help='no transformation will be applied to the data; useful for importing CSV files')

    # .................................state mandatory arguments
    required.add_argument('--topic',
        required=True,
        help='name of topic where the messages will be published')

    required.add_argument('-t', '--type',
        choices=pipelines.__all__,
        required=True,
        help='type of data that will be collected')

    return parser.parse_args() 

def main():

    # input parameters.
    parser = argparse.ArgumentParser(description="Master OA Script")
    parser.add_argument('-d','--date',required=True,dest='date',help='Date data that will be processed by OA  (i.e 20161102)',metavar='')
    parser.add_argument('-t','--type',required=True,dest='type',help='Data type that will be processed by OA (i.e dns, proxy, flow)',metavar='')
    parser.add_argument('-l','--limit',required=True,dest='limit',help='Num of suspicious connections that will be processed by OA.',metavar='')
    args= parser.parse_args()

    start_oa(args) 

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('email')
    parser.add_argument('api_key')
    parser.add_argument('domain')
    parser.add_argument('--proxied', '-p', dest='proxied', action='store_true', default=False,
                        help='Enable the Cloudflare proxy for the record')
    args = parser.parse_args()
    cf = CloudFlare(**vars(args))
    cf.sync_dns_from_my_ip() 

def argument_parser():
    """
    Get an argument parser for a training script.
    """
    parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument('--pretrained', help='evaluate a pre-trained model',
                        action='store_true', default=False)
    parser.add_argument('--seed', help='random seed', default=0, type=int)
    parser.add_argument('--checkpoint', help='checkpoint directory', default='model_checkpoint')
    parser.add_argument('--classes', help='number of classes per inner task', default=5, type=int)
    parser.add_argument('--shots', help='number of examples per class', default=5, type=int)
    parser.add_argument('--train-shots', help='shots in a training batch', default=0, type=int)
    parser.add_argument('--inner-batch', help='inner batch size', default=5, type=int)
    parser.add_argument('--inner-iters', help='inner iterations', default=20, type=int)
    parser.add_argument('--replacement', help='sample with replacement', action='store_true')
    parser.add_argument('--learning-rate', help='Adam step size', default=1e-3, type=float)
    parser.add_argument('--meta-step', help='meta-training step size', default=0.1, type=float)
    parser.add_argument('--meta-step-final', help='meta-training step size by the end',
                        default=0.1, type=float)
    parser.add_argument('--meta-batch', help='meta-training batch size', default=1, type=int)
    parser.add_argument('--meta-iters', help='meta-training iterations', default=400000, type=int)
    parser.add_argument('--eval-batch', help='eval inner batch size', default=5, type=int)
    parser.add_argument('--eval-iters', help='eval inner iterations', default=50, type=int)
    parser.add_argument('--eval-samples', help='evaluation samples', default=100, type=int)
    parser.add_argument('--eval-interval', help='train steps per eval', default=1000, type=int)
    parser.add_argument('--weight-decay', help='weight decay rate', default=1, type=float)
    parser.add_argument('--transductive', help='evaluate all samples at once', action='store_true')
    parser.add_argument('--foml', help='use FOML instead of Reptile', action='store_true')
    parser.add_argument('--foml-tail', help='number of shots for the final mini-batch in FOML',
                        default=None, type=int)
    parser.add_argument('--sgd', help='use vanilla SGD instead of Adam', action='store_true')
    parser.add_argument('--metatransfer', help='use meta transfer learning approach', action='store_true')
    parser.add_argument('--gpu', help='gpu id', default=0, type=int)
    return parser 

def get_args():
    """Setup argument parser and return parsed arguments."""
    parser = argparse.ArgumentParser(
        description=__doc__.strip()
    )
    parser.add_argument('-a', '--app', dest='app', metavar='HEROKU_APP', type=str,
                        help='Name of the target Heroku app.')
    parser.add_argument('-t', '--token', dest='token', metavar='AUTH_TOKEN', type=str,
                        default=None, help='Heroku AUTH token.')
    parser.add_argument('-v', dest='verbose', action='store_const',
                        const=logging.DEBUG, default=logging.WARNING,
                        help='verbose mode (default: off)')
    return parser.parse_args() 

def main():
    parser = argparse.ArgumentParser()
    # --- input/output --- #
    parser.add_argument(
        'output', metavar='O', type=str,
        help='output path specifying location in which to problem.')
    # --- problem parameters --- #
    parser.add_argument(
        '-cd', '--cone_dims', required=True, type=int, nargs='+',
        help='list of cone dimensions')
    parser.add_argument(
        '-c', '--cones', required=True, type=str, nargs='+',
        help='list of cone classes belonging to %s' % str(k_cones.keys()))
    parser.add_argument(
        '-n', '--n', required=True, type=int,
        help='number of variables (i.e., dimension of p)')
    parser.add_argument(
        '-d', '--density', type=float, default=.01,
        help='density of data matrix A')
    args = parser.parse_args()

    path = check_path(args.output)
    dim = 2 * (sum(args.cone_dims) + args.n + 1)
    x = cvxpy.Variable(dim)

    for c in args.cones:
        assert c in k_cones
    cones = [k_cones[c] for c in args.cones]
    cone_program = random_cone_program(x=x, cone_dims=args.cone_dims,
        cones=cones, n=args.n, density=args.density)
    save_problem(path, cone_program) 

def main():
    """Generate datasets."""

    parser = argparse.ArgumentParser(description="Process some integers.")
    parser.add_argument("--dataset_dir", help="")
    parser.add_argument("--out_dir", default="", help="")
    parser.add_argument("--img_size", default=224, type=int, help="")
    args = parser.parse_args()

    assert args.dataset_dir is not None, "Expected 10k cats dataset directory via --dataset_dir"

    # load images and their facial keypoints
    print("Loading filepaths...")
    fps = find_image_filepaths(args.dataset_dir)

    print("Loading images...")
    examples = []
    for i, fp in enumerate(fps):
        if (i+1) % 100 == 0:
            print("Image %d of %d..." % (i+1, len(fps)))
        img = ndimage.imread(fp, mode="RGB")
        kps = load_keypoints(fp, image_height=img.shape[0], image_width=img.shape[1])
        img_square, (added_top, added_right, added_bottom, added_left) = to_aspect_ratio_add(img, 1.0, return_paddings=True)
        kps = [(x+added_left, y+added_top) for (x, y) in kps]
        #rs_factor = args.img_size / img_square.shape[0]
        img_square_rs = misc.imresize(img_square, (args.img_size, args.img_size))
        kps_rs = [(int((x/img_square.shape[1])*args.img_size), int((y/img_square.shape[0])*args.img_size)) for (x, y) in kps]
        examples.append(Example(fp, img_square_rs, kps_rs))

    # save datasets
    print("Saving pickle file...")
    with open(os.path.join(args.out_dir, "cats-dataset.pkl"), "w") as f:
        pickle.dump(examples, f) 

def test(self):

        parser = argparse.ArgumentParser()
        parser.register('action', 'my_action', self.MyAction)
        parser.add_argument('badger', action='my_action')

        self.assertEqual(parser.parse_args(['1']), NS(badger='foo[1]'))
        self.assertEqual(parser.parse_args(['42']), NS(badger='foo[42]'))


# ================
# Subparsers tests
# ================ 

def test_conflicting_parents(self):
        self.assertRaises(
            argparse.ArgumentError,
            argparse.ArgumentParser,
            parents=[self.w_parent, self.wxyz_parent]) 

def test_conflicting_parents_mutex(self):
        self.assertRaises(
            argparse.ArgumentError,
            argparse.ArgumentParser,
            parents=[self.abcd_parent, self.ab_mutex_parent]) 

def assertTypeError(self, *args, **kwargs):
        parser = argparse.ArgumentParser()
        self.assertRaises(TypeError, parser.add_argument,
                          *args, **kwargs) 

def assertValueError(self, *args, **kwargs):
        parser = argparse.ArgumentParser()
        self.assertRaises(ValueError, parser.add_argument,
                          *args, **kwargs) 

def test_invalid_action(self):
        self.assertValueError('-x', action='foo')
        self.assertValueError('foo', action='baz')
        self.assertValueError('--foo', action=('store', 'append'))
        parser = argparse.ArgumentParser()
        try:
            parser.add_argument("--foo", action="store-true")
        except ValueError:
            e = sys.exc_info()[1]
            expected = 'unknown action'
            msg = 'expected %r, found %r' % (expected, e)
            self.assertTrue(expected in str(e), msg) 

def test_multiple_dest(self):
        parser = argparse.ArgumentParser()
        parser.add_argument(dest='foo')
        try:
            parser.add_argument('bar', dest='baz')
        except ValueError:
            e = sys.exc_info()[1]
            expected = 'dest supplied twice for positional argument'
            msg = 'expected %r, found %r' % (expected, e)
            self.assertTrue(expected in str(e), msg) 

def test_parsers_action_missing_params(self):
        self.assertTypeError('command', action='parsers')
        self.assertTypeError('command', action='parsers', prog='PROG')
        self.assertTypeError('command', action='parsers',
                             parser_class=argparse.ArgumentParser) 

def test_dest(self):
        parser = argparse.ArgumentParser()
        action = parser.add_argument('--foo')
        self.assertEqual(action.dest, 'foo')
        action = parser.add_argument('-b', '--bar')
        self.assertEqual(action.dest, 'bar')
        action = parser.add_argument('-x', '-y')
        self.assertEqual(action.dest, 'x') 

def test_bad_type(self):
        self.assertRaises(ValueError, argparse.ArgumentParser,
                          conflict_handler='foo') 

def test_conflict_error(self):
        parser = argparse.ArgumentParser()
        parser.add_argument('-x')
        self.assertRaises(argparse.ArgumentError,
                          parser.add_argument, '-x')
        parser.add_argument('--spam')
        self.assertRaises(argparse.ArgumentError,
                          parser.add_argument, '--spam') 

def test_resolve_error(self):
        get_parser = argparse.ArgumentParser
        parser = get_parser(prog='PROG', conflict_handler='resolve')

        parser.add_argument('-x', help='OLD X')
        parser.add_argument('-x', help='NEW X')
        self.assertEqual(parser.format_help(), textwrap.dedent('''\
            usage: PROG [-h] [-x X]

            optional arguments:
              -h, --help  show this help message and exit
              -x X        NEW X
            '''))

        parser.add_argument('--spam', metavar='OLD_SPAM')
        parser.add_argument('--spam', metavar='NEW_SPAM')
        self.assertEqual(parser.format_help(), textwrap.dedent('''\
            usage: PROG [-h] [-x X] [--spam NEW_SPAM]

            optional arguments:
              -h, --help       show this help message and exit
              -x X             NEW X
              --spam NEW_SPAM
            '''))


# =============================
# Help and Version option tests
# =============================