# import all functions from the tkinterfromtkinterimport*fromtkinterimportmessagebox# function to find weather details# of any city using openweathermap apideftell_weather():# import required modulesimportrequests,json# enter your api key hereapi_key="Your_API_key"# base_url variable to store urlbase_url="http://api.openweathermap.org/data/2.5/weather"# take a city name from city_field entry boxcity_name=city_field.get()# complete_url variable to store complete url addresscomplete_url=base_url+"appid ="+api_key+"&q ="+city_name# get method of requests module# return response objectresponse=requests.get(complete_url)# json method of response object convert# json format data into python format datax=response.json()# now x contains list of  nested dictionaries# we know dictionary contains key value pair# check the value of "cod" key is equal to "404"# or not if not that means city is found# otherwise city is not foundifx["cod"]!="404":# store the value of "main" key in variable yy=x["main"]# store the value corresponding to the "temp" key of ycurrent_temperature=y["temp"]# store the value corresponding to the "pressure" key of ycurrent_pressure=y["pressure"]# store the value corresponding to the "humidity" key of ycurrent_humidity=y["humidity"]# store the value of "weather" key in variable zz=x["weather"]# store the value corresponding to the "description" key# at the 0th index of zweather_description=z[0]["description"]# insert method inserting the# value in the text entry box.temp_field.insert(15,str(current_temperature)+" Kelvin")atm_field.insert(10,str(current_pressure)+" hPa")humid_field.insert(15,str(current_humidiy)+" %")desc_field.insert(10,str(weather_description))# if city is not foundelse:# message dialog box appear which# shows given Error messagemessagebox.showerror("Error","City Not Found\n""Please enter valid city name")# clear the content of city_field entry boxcity_field.delete(0,END)# Function for clearing the# contents of all text entry boxesdefclear_all():city_field.delete(0,END)temp_field.delete(0,END)atm_field.delete(0,END)humid_field.delete(0,END)desc_field.delete(0,END)# set focus on the city_field entry boxcity_field.focus_set()# Driver codeif__name__=="__main__":# Create a GUI windowroot=Tk()# set the name of tkinter GUI windowroot.title("Gui Application")# Set the background colour of GUI windowroot.configure(background="light green")# Set the configuration of GUI windowroot.geometry("425x175")# Create a Weather Gui Application labelheadlabel=Label(root,text="Weather Gui Application",fg='black',bg='red')# Create a City name : labellabel1=Label(root,text="City name : ",fg='black',bg='dark green')# Create a City name : labellabel2=Label(root,text="Temperature :",fg='black',bg='dark green')# Create a atm pressure : labellabel3=Label(root,text="atm pressure :",fg='black',bg='dark green')# Create a humidity : labellabel4=Label(root,text="humidity :",fg='black',bg='dark green')# Create a description :labellabel5=Label(root,text="description  :",fg='black',bg='dark green')# grid method is used for placing# the widgets at respective positions# in table like structure .headlabel.grid(row=0,column=1)label1.grid(row=1,column=0,sticky="E")label2.grid(row=3,column=0,sticky="E")label3.grid(row=4,column=0,sticky="E")label4.grid(row=5,column=0,sticky="E")label5.grid(row=6,column=0,sticky="E")# Create a text entry box# for filling or typing the information.city_field=Entry(root)temp_field=Entry(root)atm_field=Entry(root)humid_field=Entry(root)desc_field=Entry(root)# grid method is used for placing# the widgets at respective positions# in table like structure .# ipadx keyword argument set width of entry space .city_field.grid(row=1,column=1,ipadx="100")temp_field.grid(row=3,column=1,ipadx="100")atm_field.grid(row=4,column=1,ipadx="100")humid_field.grid(row=5,column=1,ipadx="100")desc_field.grid(row=6,column=1,ipadx="100")# Create a Submit Button and attached# to tell_weather functionbutton1=Button(root,text="Submit",bg="red",fg="black",command=tell_weather)# Create a Clear Button and attached# to clear_all functionbutton2=Button(root,text="Clear",bg="red",fg="black",command=clear_all)# grid method is used for placing# the widgets at respective positions# in table like structure .button1.grid(row=2,column=1)button2.grid(row=7,column=1)# Start the GUIroot.mainloop()