""" Code illustration: 7.06 Weather Reporter Tkinter GUI Application Development Hotshot """ # -*- coding: utf-8 -*- from Tkinter import * import ttk import urllib import datetime import json from PIL import ImageTk import tkMessageBox class WeatherReporter: def __init__(self, root): self.root = root self.top_frame() self.display_frame() def top_frame(self): topfrm = Frame(self.root) topfrm.grid(row=1, sticky='w') Label(topfrm, text='Enter Location').grid(row=1, column=2, sticky='w') self.enteredlocation = StringVar() Entry(topfrm, textvariable=self.enteredlocation).grid(row=1, column=3, sticky='w') ttk.Button(topfrm, text='Show Weather Info', command= self.show_weather_button_clicked).grid(row=1, column=4, sticky='w') def display_frame(self): displayfrm = Frame(self.root) displayfrm.grid(row=2, sticky='ew', columnspan=5) self.canvas = Canvas(displayfrm, height='410', width='300', background='black', borderwidth=5) self.canvas.create_rectangle( 5, 5,305,415, fill='#F6AF06') self.canvas.grid(row=2, sticky='w', columnspan=5) def show_weather_button_clicked(self): if not self.enteredlocation.get(): return self.canvas.delete(ALL) self.canvas.create_rectangle( 5, 5,305,415, fill='#F6AF06') data = self.get_weather_data() data =self.json_to_dict(data) self.display_final(data) def display_final(self, data): try: data['name'] except: tkMessageBox.showerror('Name not found', 'Unable to fetch record - Name not found') return self.canvas.create_text( 30, 30, text=data['name'], fill='white', font="Purisa 16", anchor=NW) self.canvas.create_text( 245, 35, text='Latitude : '+'%.3f'%(float(data['lat'])), fill='white', font="Purisa 10") self.canvas.create_text( 245, 53, text='Longitude: '+ '%.3f'%(float(data['lon'])), fill='white', font="Purisa 10") self.canvas.create_text( 30, 50, text='Country : '+ str(data['country']), fill='white', font="Purisa 10", anchor=NW) self.canvas.create_text( 155, 80, text=self.time_stamp_to_data(data['dt']), fill='white', font="Purisa 10") self.canvas.create_text( 85,105, text='NOW', fill='white', font="Purisa 14") iconname = "weatherimages/%s.png" %data['icon'].lower() self.img = ImageTk.PhotoImage(file=iconname) self.canvas.create_image( 140, 105, image=self.img) self.canvas.create_text( 220, 105, text=data['description'], fill='white', font="Purisa 8") #temperature tempr = float(data['temp'])/10.0 self.canvas.create_text( 85,155, text='Temperature', fill='white', font="Purisa 14") self.canvas.create_text( 87,175, text=str('%.2f'%(float(data['temp_min'])/10.0))+u' \u2103'.encode('utf-8')+ ' ~ ' + str('%.2f'%(float(data['temp_max'])/10.0))+u' \u2103'.encode('utf-8'), fill='white', font="Purisa 9") self.canvas.create_text( 225, 140, text=str(tempr)+u' \u2103'.encode('utf-8'), fill='white', font="Purisa 18") #celcius self.canvas.create_text( 225, 180, text=str(self.celcius_to_fahrenheit(tempr))+u' \u2109'.encode('utf-8'), fill='white', font="Purisa 18") #fahrenheit #humidity self.canvas.create_text( 95,215, text='Relative Humidity', fill='white', font="Purisa 12") self.canvas.create_text( 198, 215, text=data['humidity']+' %' ,fill='white', font="Purisa 12") #rh #Wind Speed self.canvas.create_text( 77,235, text='Wind Speed', fill='white', font="Purisa 12") self.canvas.create_text( 205, 235, text=data['speed']+' m/s ' ,fill='white', font="Purisa 12") #rh #Wind Degree self.canvas.create_text( 80,255, text='Wind Degree', fill='white', font="Purisa 12") self.canvas.create_text( 223, 255, text=data['deg']+' degrees' ,fill='white', font="Purisa 12") #rh #atmoshpheric pressure self.canvas.create_text( 80,275, text='Pressure(at.)', fill='white', font="Purisa 12") self.canvas.create_text( 225, 275, text=data['pressure']+' millibars' ,fill='white', font="Purisa 12") #rh #rain in last 3 hours if data.has_key('3h'): self.canvas.create_text( 83,293, text='Rain (Last 3h)', fill='white', font="Purisa 12") self.canvas.create_text( 200, 293, text=data['3h']+' mm' ,fill='white', font="Purisa 12") #rain #clouds self.canvas.create_text( 58,310, text='Clouds', fill='white', font="Purisa 12") self.canvas.create_text( 200, 310, text=data['all']+' %' ,fill='white', font="Purisa 12") #clouds #sunrise self.canvas.create_text( 60,328, text='Sunrise', fill='white', font="Purisa 12") self.canvas.create_text( 200, 328, text=self.time_stamp_to_time(data['sunrise']) ,fill='white', font="Purisa 12") #sunsettime_stamp_to_data self.canvas.create_text( 59,343, text='Sunset', fill='white', font="Purisa 12") self.canvas.create_text( 200, 343, text=self.time_stamp_to_time(data['sunset']) ,fill='white', font="Purisa 12") def time_stamp_to_time(self, ts): return (datetime.datetime.fromtimestamp(int(ts)).strftime('%H:%M:%S')) #poweredby Openweather.org self.canvas.create_text( 159,378, text='Powered by:', fill='white', font="Purisa 12") self.canvas.create_text( 159,398, text='www.openweathermap.org', fill='white', font="Purisa 12") def time_stamp_to_data(self, ts): return (datetime.datetime.fromtimestamp(int(ts)).strftime('%Y-%m-%d %H:%M:%S')) def celcius_to_fahrenheit(self, c): return (float(c) * 9.0/5) + 32 def get_weather_data(self): try: apiurl = 'http://api.openweathermap.org/data/2.5/weather?q=%s'%self.enteredlocation.get() data = urllib.urlopen(apiurl) jdata= data.read() return jdata except IOError as e: tkMessageBox.showerror('Unable to connect', 'Unable to connect %s'%e) def json_to_dict(self, jdata): mydecoder = json.JSONDecoder() decodedjdata = mydecoder.decode(jdata) flatteneddict = {} for key, value in decodedjdata.items(): if key == 'weather': for ke,va in value[0].items(): flatteneddict[str(ke)] = str(va).upper() continue try: for k,v in value.items(): flatteneddict[str(k)] = str(v).upper() except: flatteneddict[str(key)] = str(value).upper() return flatteneddict def main(): root=Tk() WeatherReporter(root) root.mainloop() if __name__ == '__main__': main()