def execute(self):
        """
        Given the command-line arguments, this creates a parser appropriate
        to that command, and runs it.
        """

        # retrieve default language from system environment
        default_locale = os.environ.get('LANG', 'en_US').split('.')[0]
        if default_locale != AVAILABLE_LOCALES:
            default_locale = DEFAULT_LOCALE

        epilog = """supported locales:

  {0}

  faker can take a locale as an argument, to return localized data. If no
  localized provider is found, the factory falls back to the default en_US
  locale.

examples:

  $ faker address
  968 Bahringer Garden Apt. 722
  Kristinaland, NJ 09890

  $ faker -l de_DE address
  Samira-Niemeier-Allee 56
  94812 Biedenkopf

  $ faker profile ssn,birthdate
  {{'ssn': u'628-10-1085', 'birthdate': '2008-03-29'}}

  $ faker -r=3 -s=";" name
  Willam Kertzmann;
  Josiah Maggio;
  Gayla Schmitt;

""".format(', '.join(sorted(AVAILABLE_LOCALES)))

        formatter_class = argparse.RawDescriptionHelpFormatter
        parser = argparse.ArgumentParser(
            prog=self.prog_name,
            description='{0} version {1}'.format(self.prog_name, VERSION),
            epilog=epilog,
            formatter_class=formatter_class)

        parser.add_argument("--version", action="version",
                            version="%(prog)s {0}".format(VERSION))

        parser.add_argument('-o', metavar="output",
                            type=argparse.FileType('w'),
                            default=sys.stdout,
                            help="redirect output to a file")

        parser.add_argument('-l', '--lang',
                            choices=AVAILABLE_LOCALES,
                            default=default_locale,
                            metavar='LOCALE',
                            help="specify the language for a localized "
                            "provider (e.g. de_DE)")
        parser.add_argument('-r', '--repeat',
                            default=1,
                            type=int,
                            help="generate the specified number of outputs")
        parser.add_argument('-s', '--sep',
                            default='\n',
                            help="use the specified separator after each "
                            "output")

        parser.add_argument('-i',
                            '--include',
                            default=META_PROVIDERS_MODULES,
                            nargs='*',
                            help="list of additional custom providers to "
                            "user, given as the import path of the module "
                            "containing your Provider class (not the provider "
                            "class itself)")

        parser.add_argument('fake',
                            action='store',
                            nargs='?',
                            help="name of the fake to generate output for "
                                 "(e.g. profile)")

        parser.add_argument('fake_args',
                            metavar="fake argument",
                            action='store',
                            nargs='*',
                            help="optional arguments to pass to the fake "
                                 "(e.g. the profile fake takes an optional "
                                 "list of comma separated field names as the "
                                 "first argument)")

        arguments = parser.parse_args(self.argv[1:])

        for i in range(arguments.repeat):

            print_doc(arguments.fake,
                      arguments.fake_args,
                      lang=arguments.lang,
                      output=arguments.o,
                      includes=arguments.include
                      )
            print(arguments.sep, file=arguments.o)

            if not arguments.fake:
                # repeat not supported for all docs
                break
dataset/ETHPy150Open joke2k/faker/faker/cli.py/Command.execute/operator `not in` -> `!=`