How to use the gconf.VALUE_LIST function in gconf

key_to_right = StringOption('Tab')
    key_to_left = StringOption('ISO_Left_Tab')
    key_to_1 = StringOption()
  ...
    options = KeyOptions("/apps/gedit-2/plugins/tabswitch")
    print options.key_to_right

"""
import os
import gconf

GCONF_TYPES = (
    gconf.VALUE_STRING,
    gconf.VALUE_INT,
    gconf.VALUE_BOOL,
    gconf.VALUE_LIST,
    gconf.VALUE_FLOAT,
    gconf.VALUE_SCHEMA
)

class OptionsType(type):
    """
       Metaclass for options class.
       Add capability for get all options list.
    """
    def __new__(cls, base, name, attrs):
        attrs['options'] = {}
        for key, attr in attrs.iteritems():
            if isinstance(attr, Option):
                attrs['options'][key] = attr
                attr.default_key = key
        new_class = super(OptionsType, cls).__new__(cls, base, name, attrs)

def get_value(self, value):
        """Gets the value of ``value``"""
        if value.type == gconf.VALUE_STRING:
            return value.get_string()
        elif value.type == gconf.VALUE_INT:
            return value.get_int()
        elif value.type == gconf.VALUE_FLOAT:
            return value.get_float()
        elif value.type == gconf.VALUE_BOOL:
            return value.get_bool()
        elif value.type == gconf.VALUE_LIST:
            _list = value.get_list()
            return [self.get_value(v) for v in _list]
        else:
            msg = "Unsupported type %s for %s"
            raise TypeError(msg % (type(value), value))

def _convert_gconf_value(value):
    if value.type == gconf.VALUE_STRING:
        return value.get_string()
    if value.type == gconf.VALUE_INT:
        return value.get_int()
    if value.type == gconf.VALUE_BOOL:
        return value.get_bool()
    if value.type == gconf.VALUE_FLOAT:
        return value.get_float()
    if value.type == gconf.VALUE_LIST:
        return [_convert_gconf_value(v) for v in value.get_list()]
    raise TypeError("unknown gconf type %s" % value.type)

def _convert_gconf_value(value):
    if value.type == gconf.VALUE_STRING:
        return value.get_string()
    if value.type == gconf.VALUE_INT:
        return value.get_int()
    if value.type == gconf.VALUE_BOOL:
        return value.get_bool()
    if value.type == gconf.VALUE_FLOAT:
        return value.get_float()
    if value.type == gconf.VALUE_LIST:
        return [_convert_gconf_value(v) for v in value.get_list()]
    raise TypeError("unknown gconf type %s" % value.type)

# Autogenerate classes StringOption, IntOption etc. with SimpleOption
# same as:
# class StringOption(SimpleOption):
#        gconf_type = gconf.VALUE_STRING
#
for gconf_type in GCONF_TYPES:
    class_name = '%sOption' % gconf_type.value_nick.capitalize()
    new_class = type(class_name, (SimpleOption,), {'gconf_type': gconf_type})
    locals()[class_name] = new_class


class ListOption(SimpleOption):
    gconf_type = gconf.VALUE_LIST

    def _py_to_gconf(self, t):
        return {
            int: gconf.VALUE_INT,
            float: gconf.VALUE_FLOAT,
            str: gconf.VALUE_STRING,
            unicode: gconf.VALUE_STRING,
            bool: gconf.VALUE_BOOL
        }[type(t)]

    def __init__(self, default_value=None, **kwargs):
        if default_value is not None:
            assert hasattr(default_value, '__iter__'), 'Default value of ListOption must be iterable'
            if len(default_value):
                self.list_type = self._py_to_gconf(default_value[0])

# -*- coding: utf-8 -*-
import os
import gconf


GCONF_TYPES = (
    gconf.VALUE_STRING,
    gconf.VALUE_INT,
    gconf.VALUE_BOOL,
    gconf.VALUE_LIST,
    gconf.VALUE_FLOAT,
    gconf.VALUE_SCHEMA
)

class OptionsContainerType(type):
    """
       Metaclass for any options container class.
    """
    def __new__(cls, base, name, attrs):
        attrs['options'] = {}
        for key, attr in attrs.iteritems():
            if isinstance(attr, Option):
                attrs['options'][key] = attr
                attr.default_key = key
                attr._storage_client = '_storage' in attrs and attrs['_storage'] or Options._storage
                attr._base_uri = attrs['_uri']