Python options.print_help方法代码示例

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def print_help(self, file: TextIO = None) -> None:
        """Prints all the command line options to stderr (or another file)."""
        if file is None:
            file = sys.stderr
        print("Usage: %s [OPTIONS]" % sys.argv[0], file=file)
        print("\nOptions:\n", file=file)
        by_group = {}  # type: Dict[str, List[_Option]]
        for option in self._options.values():
            by_group.setdefault(option.group_name, []).append(option)

        for filename, o in sorted(by_group.items()):
            if filename:
                print("\n%s options:\n" % os.path.normpath(filename), file=file)
            o.sort(key=lambda option: option.name)
            for option in o:
                # Always print names with dashes in a CLI context.
                prefix = self._normalize_name(option.name)
                if option.metavar:
                    prefix += "=" + option.metavar
                description = option.help or ""
                if option.default is not None and option.default != "":
                    description += " (default %s)" % option.default
                lines = textwrap.wrap(description, 79 - 35)
                if len(prefix) > 30 or len(lines) == 0:
                    lines.insert(0, "")
                print("  --%-30s %s" % (prefix, lines[0]), file=file)
                for line in lines[1:]:
                    print("%-34s %s" % (" ", line), file=file)
        print(file=file) 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def _help_callback(self, value: bool) -> None:
        if value:
            self.print_help()
            sys.exit(0) 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def print_help(self, file=None):
        """Prints all the command line options to stderr (or another file)."""
        if file is None:
            file = sys.stderr
        print("Usage: %s [OPTIONS]" % sys.argv[0], file=file)
        print("\nOptions:\n", file=file)
        by_group = {}
        for option in self._options.values():
            by_group.setdefault(option.group_name, []).append(option)

        for filename, o in sorted(by_group.items()):
            if filename:
                print("\n%s options:\n" % os.path.normpath(filename), file=file)
            o.sort(key=lambda option: option.name)
            for option in o:
                # Always print names with dashes in a CLI context.
                prefix = self._normalize_name(option.name)
                if option.metavar:
                    prefix += "=" + option.metavar
                description = option.help or ""
                if option.default is not None and option.default != '':
                    description += " (default %s)" % option.default
                lines = textwrap.wrap(description, 79 - 35)
                if len(prefix) > 30 or len(lines) == 0:
                    lines.insert(0, '')
                print("  --%-30s %s" % (prefix, lines[0]), file=file)
                for line in lines[1:]:
                    print("%-34s %s" % (' ', line), file=file)
        print(file=file) 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def _help_callback(self, value):
        if value:
            self.print_help()
            sys.exit(0) 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def print_help(file: TextIO = None) -> None:
    """Prints all the command line options to stderr (or another file).

    See `OptionParser.print_help`.
    """
    return options.print_help(file) 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def parse_command_line(self, args=None):
        if args is None:
            args = sys.argv
        remaining = []
        for i in xrange(1, len(args)):
            # All things after the last option are command line arguments
            if not args[i].startswith("-"):
                remaining = args[i:]
                break
            if args[i] == "--":
                remaining = args[i + 1:]
                break
            arg = args[i].lstrip("-")
            name, equals, value = arg.partition("=")
            name = name.replace('-', '_')
            if not name in self:
                print_help()
                raise Error('Unrecognized command line option: %r' % name)
            option = self[name]
            if not equals:
                if option.type == bool:
                    value = "true"
                else:
                    raise Error('Option %r requires a value' % name)
            option.parse(value)
        if self.help:
            print_help()
            sys.exit(0)

        # Set up log level and pretty console logging by default
        if self.logging != 'none':
            logging.getLogger().setLevel(getattr(logging, self.logging.upper()))
            enable_pretty_logging()

        return remaining 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def print_help(self, file=sys.stdout):
        """Prints all the command line options to stdout."""
        print >> file, "Usage: %s [OPTIONS]" % sys.argv[0]
        print >> file, "\nOptions:\n"
        by_group = {}
        for option in self.itervalues():
            by_group.setdefault(option.group_name, []).append(option)

        for filename, o in sorted(by_group.items()):
            if filename:
                print >> file, "\n%s options:\n" % os.path.normpath(filename)
            o.sort(key=lambda option: option.name)
            for option in o:
                prefix = option.name
                if option.metavar:
                    prefix += "=" + option.metavar
                description = option.help or ""
                if option.default is not None and option.default != '':
                    description += " (default %s)" % option.default
                lines = textwrap.wrap(description, 79 - 35)
                if len(prefix) > 30 or len(lines) == 0:
                    lines.insert(0, '')
                print >> file, "  --%-30s %s" % (prefix, lines[0])
                for line in lines[1:]:
                    print >> file, "%-34s %s" % (' ', line)
        print >> file 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def parse_command_line(
        self, args: List[str] = None, final: bool = True
    ) -> List[str]:
        """Parses all options given on the command line (defaults to
        `sys.argv`).

        Options look like ``--option=value`` and are parsed according
        to their ``type``. For boolean options, ``--option`` is
        equivalent to ``--option=true``

        If the option has ``multiple=True``, comma-separated values
        are accepted. For multi-value integer options, the syntax
        ``x:y`` is also accepted and equivalent to ``range(x, y)``.

        Note that ``args[0]`` is ignored since it is the program name
        in `sys.argv`.

        We return a list of all arguments that are not parsed as options.

        If ``final`` is ``False``, parse callbacks will not be run.
        This is useful for applications that wish to combine configurations
        from multiple sources.

        """
        if args is None:
            args = sys.argv
        remaining = []  # type: List[str]
        for i in range(1, len(args)):
            # All things after the last option are command line arguments
            if not args[i].startswith("-"):
                remaining = args[i:]
                break
            if args[i] == "--":
                remaining = args[i + 1 :]
                break
            arg = args[i].lstrip("-")
            name, equals, value = arg.partition("=")
            name = self._normalize_name(name)
            if name not in self._options:
                self.print_help()
                raise Error("Unrecognized command line option: %r" % name)
            option = self._options[name]
            if not equals:
                if option.type == bool:
                    value = "true"
                else:
                    raise Error("Option %r requires a value" % name)
            option.parse(value)

        if final:
            self.run_parse_callbacks()

        return remaining 

# 需要导入模块: from tornado import options [as 别名]
# 或者: from tornado.options import print_help [as 别名]
def parse_command_line(self, args=None, final=True):
        """Parses all options given on the command line (defaults to
        `sys.argv`).

        Options look like ``--option=value`` and are parsed according
        to their ``type``. For boolean options, ``--option`` is
        equivalent to ``--option=true``

        If the option has ``multiple=True``, comma-separated values
        are accepted. For multi-value integer options, the syntax
        ``x:y`` is also accepted and equivalent to ``range(x, y)``.

        Note that ``args[0]`` is ignored since it is the program name
        in `sys.argv`.

        We return a list of all arguments that are not parsed as options.

        If ``final`` is ``False``, parse callbacks will not be run.
        This is useful for applications that wish to combine configurations
        from multiple sources.

        """
        if args is None:
            args = sys.argv
        remaining = []
        for i in range(1, len(args)):
            # All things after the last option are command line arguments
            if not args[i].startswith("-"):
                remaining = args[i:]
                break
            if args[i] == "--":
                remaining = args[i + 1:]
                break
            arg = args[i].lstrip("-")
            name, equals, value = arg.partition("=")
            name = self._normalize_name(name)
            if name not in self._options:
                self.print_help()
                raise Error('Unrecognized command line option: %r' % name)
            option = self._options[name]
            if not equals:
                if option.type == bool:
                    value = "true"
                else:
                    raise Error('Option %r requires a value' % name)
            option.parse(value)

        if final:
            self.run_parse_callbacks()

        return remaining