I think I’ve started to get to grips with GUI windows in Python, so I’m now going to go back and rework my weather forecast so that it uses a GUI. My first attempt takes a longitude and latitude input from the user. Currently it outputs back to the Python shell, so I’ll need to sort that next 🙂
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#!/bin/python3
#geektechstuff
#Weather Forecasting with a GUI
#libraries to import
import json, requests
from tkinter import *
#variables
LAT=”
LON=”
url=”
#create window
root = Tk()
#sets the windows title
root.title(“geektechstuff weather forecast”)
#sets windows width x height
root.geometry(“450×150”)
#frame to hold the labels / buttons
app = Frame(root)
app.grid()
#create label for the title
GTSWF_label = Label(app,text=”GeekTechStuff Weather Forecaster”)
GTSWF_label.grid(row=0, column=0)
#create label for the latitude and a text input box
Lat_label = Label(app,text=”Enter Latitude:”)
Lat_label.grid(row=1, column=0)
app.lat_ent=Entry(app)
app.lat_ent.grid(row=1,column=1)
#create label for the longitude and a text input box
Lon_label = Label(app,text=”Enter Latitude:”)
Lon_label.grid(row=2, column=0)
app.lon_ent=Entry(app)
app.lon_ent.grid(row=2,column=1)
#define actions for the buttons
#closes the window
def button_action():
root.destroy()
#gets the weather forecast
def get_weather():
LAT=app.lat_ent.get()
LAT=str(LAT)
LON=app.lon_ent.get()
LON=str(LON)
#calls on the API of openweathermap.org
url=’http://api.openweathermap.org/data/2.5/forecast?lat=’+LAT+’&lon=’+LON+’&APPID=XXXXXXXXXXXXXXXX’
url=str(url)
response=requests.get(url)
response.raise_for_status()
#Loads the JSON
weatherData=json.loads(response.text)
w=weatherData[‘list’]
print(w[0][‘dt_txt’])
print(w[0][‘weather’][0][‘main’],’-‘,w[0][‘weather’][0][‘description’])
#Converts Kevlin into Celsius, as I’m more of a celsius person
temp_c=w[0][‘main’][‘temp’]
temp_c=float(temp_c)
temp_c=temp_c-273.15
print(‘Average temp in celsius:’,temp_c)
#Add button
button_exit = Button(app,text=”Exit”, command=button_action)
button_exit.grid(row=4, column=0)
button_generate = Button(app,text=”Forecast”, command=get_weather)
button_generate.grid(row=4, column=1)
#start event loop – creates the window with the above labels and buttons
root.mainloop()
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GeekTechStuff 