related to http://blog.madadipouya.com/2015/12/26/how-to-create-ubuntu-indicator-with-python/

indicator-weather.py

#! /bin/sh
""":"
exec python $0 ${1+"$@"}
"""

# This file is part of indicator-weather.
# Indicator Weather is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3
# as published by the Free Software Foundation.
#
# Indicator Weather is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.  <http://www.gnu.org/licenses/>
#
# Author(s):
# (C) 2015 Kasra Madadipouya <[email protected]>

import sys
import gtk
import appindicator
import urllib
import json

PING_FREQUENCY = 10 # minutes

class GetWeather:
    def __init__(self):
        self.ind = appindicator.Indicator("weather-indicator",
                                           "weather-clear",
        #file:///usr/share/icons/ubuntu-mono-light/status/16 
                                           appindicator.CATEGORY_APPLICATION_STATUS)
        self.ind.set_status(appindicator.STATUS_ACTIVE)
        self.menu_setup()
        self.ind.set_menu(self.menu)
    def menu_setup(self):
        self.menu = gtk.Menu()
        self.quit_item = gtk.MenuItem("Quit")
        self.quit_item.connect("activate", self.quit)
        self.quit_item.show()
        self.menu.append(self.quit_item)
        self.temp_item = gtk.MenuItem("")
        #self.temp_item.connect("activate")
        self.temp_item.show()
        self.menu.append(self.temp_item)
    def main(self):
        self.get_weather()
        gtk.timeout_add(PING_FREQUENCY * 60000, self.get_weather)
        gtk.main()

    def quit(self, widget):
        sys.exit(0)

    def get_weather(self):
        country,city = self.get_location()
        url = 'http://api.openweathermap.org/data/2.5/weather?appid=c15e2598880e57fad011a64061948fac&q=' + country + ',' + city + '&units=metric'
        u = urllib.urlopen(url)
        data = u.read()
        #print data
        j = json.loads(data)
        temp = j['main']['temp']
        print temp
        degree = u"\u2103"
        rtn_val = str(temp) + degree + ' ' + city
        self.ind.set_label(rtn_val)
        self.temp_item.get_child().set_text(rtn_val)        
        return True

    def get_location(self):
        
        try:
        	url = 'http://ipinfo.io/json/'
        	u = urllib.urlopen(url)
        	data = u.read()
        	j = json.loads(data)
        	country = j['country']
        	city = j['city']
        	return (country,city)
        except:
            return False,0

if __name__ == "__main__":
    indicator = GetWeather()
    indicator.main()