Python argparse 模块，PARSER 实例源码

我们从Python开源项目中，提取了以下13个代码示例，用于说明如何使用argparse.PARSER。

项目：pathspider 作者：mami-project | 项目源码 | 文件源码

def register_args(subparsers):
    class SubcommandHelpFormatter(argparse.RawDescriptionHelpFormatter):
        def _format_action(self, action):
            parts = super()._format_action(action)
            if action.nargs == argparse.PARSER:
                parts = "\n".join([line for line in parts.split("\n")[1:]])
                parts += "\n\nSpider safely!"
            return parts

    parser = subparsers.add_parser(name='observe',
                                   help="Passively observe network traffic",
                                   formatter_class=SubcommandHelpFormatter)
    parser.add_argument('--list-chains', help="Prints a list of available chains",
                        action='store_true')
    parser.add_argument('-i', '--interface', default="eth0",
                        help="The interface to use for the observer. (Default: eth0)")
    parser.add_argument('--output', default='/dev/stdout', metavar='OUTPUTFILE',
                        help=("The file to output results data to. "
                              "Defaults to standard output."))
    parser.add_argument('chains', nargs='*', help="Observer chains to use")

    # Set the command entry point
    parser.set_defaults(cmd=run_observer)

项目：argparseinator 作者：ellethee | 项目源码 | 文件源码

def _format_action(self, action):
        parts = super(SubcommandHelpFormatter, self)._format_action(action)
        if action.nargs == argparse.PARSER:
            parts = "\n".join(parts.split("\n")[1:])
        return parts

项目：pathspider 作者：mami-project | 项目源码 | 文件源码

def register_args(subparsers):
    class SubcommandHelpFormatter(argparse.RawDescriptionHelpFormatter):
        def _format_action(self, action):
            parts = super()._format_action(action)
            if action.nargs == argparse.PARSER:
                parts = "\n".join([line for line in parts.split("\n")[1:]])
                parts += "\n\nSpider safely!"
            return parts

    parser = subparsers.add_parser(name='measure',
                                   help="Perform a PATHspider measurement",
                                   formatter_class=SubcommandHelpFormatter)
    parser.add_argument('-i', '--interface', default="eth0",
                        help="The interface to use for the observer. (Default: eth0)")
    parser.add_argument('-w', '--workers', type=int, default=100,
                        help="Number of workers to use. (Default: 100)")
    parser.add_argument('--input', default='/dev/stdin', metavar='INPUTFILE',
                        help=("A file containing a list of PATHspider jobs. "
                              "Defaults to standard input."))
    parser.add_argument('--csv-input', action='store_true',
                        help=("Indicate CSV format."))
    parser.add_argument('--output', default='/dev/stdout', metavar='OUTPUTFILE',
                        help=("The file to output results data to. "
                              "Defaults to standard output."))
    parser.add_argument('--output-flows', action='store_true',
                        help="Include flow results in output.")

    # Set the command entry point
    parser.set_defaults(cmd=run_measurement)

    # Add plugins
    plugin_subparsers = parser.add_subparsers(title="Plugins",
                                              description="The following plugins are available for use:",
                                              metavar='PLUGIN', help='plugin to use')
    for plugin in plugins:
        plugin.register_args(plugin_subparsers)

项目：pathspider 作者：mami-project | 项目源码 | 文件源码

def handle_args(argv):
    class SubcommandHelpFormatter(argparse.RawDescriptionHelpFormatter):
        def _format_action(self, action):
            parts = super()._format_action(action)
            if action.nargs == argparse.PARSER:
                parts = "\n".join([line for line in parts.split("\n")[1:]])
                parts += "\n\nSpider safely!"
            return parts

    parser = argparse.ArgumentParser(description=('PATHspider will spider the '
                                                  'paths.'),
                                     formatter_class=SubcommandHelpFormatter)

    parser.add_argument("--verbose", action="store_true",
                        help="Enable verbose logging")

    # Add commands
    subparsers = parser.add_subparsers(title="Commands",
                                       metavar='COMMAND', help='command to run')

    # Register commands arguments
    for cmd in cmds:
        cmd.register_args(subparsers)

    args = parser.parse_args(argv[1:])

    # Set up logging
    logging.basicConfig()
    if args.verbose:
        logging.getLogger().setLevel(logging.DEBUG)
    else:
        logging.getLogger().setLevel(logging.INFO)

    # If it's a valid command, run it, or help the user if not
    if hasattr(args, 'cmd'):
        args.cmd(args)
    else:
        parser.print_help()

项目：zippy 作者：securesystemslab | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：oil 作者：oilshell | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：python2-tracer 作者：extremecoders-re | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：web_ctp 作者：molebot | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：pefile.pypy 作者：cloudtracer | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：ouroboros 作者：pybee | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：ndk-python 作者：gittor | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：kbe_server 作者：xiaohaoppy | 项目源码 | 文件源码

def test_invalid_add_argument(self):
        parser = ErrorRaisingArgumentParser()
        group = parser.add_mutually_exclusive_group()
        add_argument = group.add_argument
        raises = self.assertRaises
        raises(ValueError, add_argument, '--foo', required=True)
        raises(ValueError, add_argument, 'bar')
        raises(ValueError, add_argument, 'bar', nargs='+')
        raises(ValueError, add_argument, 'bar', nargs=1)
        raises(ValueError, add_argument, 'bar', nargs=argparse.PARSER)

项目：drill 作者：rr- | 项目源码 | 文件源码

def _format_action_invocation(self, action):
        if action.nargs == argparse.PARSER:
            return ''
        if not action.option_strings or action.nargs == 0:
            return super()._format_action_invocation(action)
        return '%s %s' % (
            ', '.join(action.option_strings),
            self._format_args(
                action, self._get_default_metavar_for_optional(action)))