Multiple Workspace in Ubunt Unity 2D

#!/usr/bin/python
#/home/macbuntu/bin/sync-workspaces.py

# Released under a GPLv3 Licence by Clockwork PC 2011
# www.clockworkpc.com.au

# You are entitled to the following four freedoms:
# Freedom 0: To run this program for any purpose
# Freedom 1: To study how this program works and change it to make it do what you wish
# Freedom 2: To redistribute copies so you can help your neighbour
# Freedom 3: To distribute copies of your modified version to others

import os

numWorkspaces = raw_input("""How many workspaces do you want?

""")

print ""
print "You have chosen to use " + numWorkspaces + " workspaces.  Well done."

os.system("gconftool-2 -s /apps/metacity/general/num_workspaces --type int " + numWorkspaces)

import math

from gi.repository import GObject
from gi.repository import GConf
from gi.repository import Gtk
from gi.repository import Wnck


class WorkspaceSyncer:

    WORKSPACES_KEY = '/apps/metacity/general/num_workspaces'

    def __init__(self):
        # The screen must be gotten before entering the main loop.
        # The pager must be in the widget hierarchy to make changes.
        self.screen = Wnck.Screen.get_default()
        self.pager = Wnck.Pager()
        self.window = Gtk.Window()
        self.window.add(self.pager)

    def get_workspace_count(self):
        """Return the number of workspaces."""
        settings = GConf.Client.get_default()
        workspace_count = self.screen.get_workspace_count()
        if workspace_count < 4:
            # Unity expects 4 workspaces.
            print "Setting number of workspaces to 4."
            settings.set_int(self.WORKSPACES_KEY, 4)
            workspace_count = 4
        elif workspace_count > 20:
            # Metacity supports up to 20 workspaces.
            print "Setting number of workspaces to 20."
            settings.set_int(self.WORKSPACES_KEY, 20)
            workspace_count = 20
        return workspace_count

    def get_rows_and_columns(self, workspace_count):
        base = math.sqrt(workspace_count)
        rows = int(base)
        if base % 1 == 0.0:
            cols = rows
        else:
            cols = rows + 1
        return rows, cols

    def sync(self):
        wm_name = self.screen.get_window_manager_name()
        if wm_name != 'Metacity':
            print "Metacity is not running. No actions take."
        else:
            workspace_count = self.get_workspace_count()
            rows, cols = self.get_rows_and_columns(workspace_count)
            success = self.pager.set_n_rows(rows)
            if success:
                print "Workspace layout set to %sx%s" % (rows, cols)
        desktopSize = "%sx%s" % (rows, cols)
        print desktopSize
        os.system("xcowsay 'Your desktop size is now '" + desktopSize)
        Gtk.main_quit()

    def start(self):
        GObject.idle_add(self.sync)
        Gtk.main()


if __name__ == "__main__":
    syncer = WorkspaceSyncer()
    syncer.start()