Ubuntu Unity Indicator to show current dollar value in Brazilian Reais (auto-updates every minute)

dollar-reais-indicator.py

#!/usr/bin/env python
# Unity indicator for dolar/real currency
# Author: Caio Almeida <caiosba@gmail.com>
# 05 Jul 2016

import gobject
import gtk
import appindicator
import os, sys
import time
from time import gmtime, strftime
from BeautifulSoup import BeautifulSoup as bs
import urlparse
import urllib2
from urllib import urlretrieve

if __name__ == "__main__":

    def update(args=None):
      url = 'http://br.investing.com/currencies/usd-brl'
      soup = bs(urllib2.urlopen(urllib2.Request(url, headers = { 'User-Agent': 'Mozilla/5.0' })))
      value = 'U$ 1 = R$ ' + soup.find('span', { 'id' : 'last_last' }).string
      ind.set_label(value)
      item.set_label(value)
      return True
              
    ind = appindicator.Indicator('dollar-real-client', '', appindicator.CATEGORY_APPLICATION_STATUS)
    ind.set_status(appindicator.STATUS_ACTIVE)
    ind.set_label('Updating...')
    menu = gtk.Menu()
    item = gtk.MenuItem('Updating...')    
    item.show()
    menu.append(item)
    ind.set_menu(menu)
    update()
    gtk.timeout_add(60000, update)
    gtk.main()

In order to run it, just execute the code above. That's how it looks like: