Created USWeatherForecast Tkinter GUI

Created a Tkinter application that gets weather forecasts from US cities.

Users are prompted to enter a city name and the application gets the weather forecast from an open source API.

The Weather API used is from the free  Open Weather Map RapidAPI (https://rapidapi.com/community/api/open-weather-map/)

Author: mgndolan

tkinter_python_gui/USWeatherForecast.py

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+from tkinter import *
+from  tkinter import ttk
+import requests
+
+# Free Open Weather API (https://rapidapi.com/community/api/open-weather-map/)
+url = "https://community-open-weather-map.p.rapidapi.com/forecast"
+
+headers = {
+    'x-rapidapi-host': "community-open-weather-map.p.rapidapi.com",
+    'x-rapidapi-key': "8e9e50a21bmshda23fe83770e19ep14a949jsn482dfa5dc300"
+    }
+
+# initialize tkinter GUI
+root = Tk()
+
+weather_frame = Frame(root)
+weather_frame.grid(columnspan=3, row=3)
+weather_view = ttk.Treeview(weather_frame)
+
+# Initialize table for US city weather information
+def createTable(data, city):
+    weather_view['columns'] = ('city', 'temperature', 'minTemp', 'maxTemp', 'condition', 'description')
+    weather_view.column("#0", width=0,  stretch=NO)
+    weather_view.column("city",anchor=CENTER, width=85)
+    weather_view.column("temperature",anchor=CENTER,width=95)
+    weather_view.column("minTemp",anchor=CENTER,width=75)
+    weather_view.column("maxTemp",anchor=CENTER,width=75)
+    weather_view.column("condition",anchor=CENTER,width=75)
+    weather_view.column("description",anchor=CENTER,width=95)
+
+    weather_view.heading("#0",text="",anchor=CENTER)
+    weather_view.heading("city",text="City Name",anchor=CENTER)
+    weather_view.heading("temperature",text="Temperature (F)",anchor=CENTER)
+    weather_view.heading("minTemp",text="Min Temp",anchor=CENTER)
+    weather_view.heading("maxTemp",text="Max Temp",anchor=CENTER)
+    weather_view.heading("condition",text="Condition",anchor=CENTER)
+    weather_view.heading("description",text="Description",anchor=CENTER)
+    NewEntry(data, city)
+
+# Populate table with weather information for each new US city
+def NewEntry(data, city):
+    try:
+        temp = data['list'][1]['main']['temp']
+        temp_min = data['list'][1]['main']['temp_min']
+        temp_max = data['list'][1]['main']['temp_max']
+        weather = data['list'][2]['weather'][0]['main']
+        weather_desc = data['list'][2]['weather'][0]['description']
+
+        weather_view.insert(parent='',index='end',iid=None,text='',
+        values=(city, temp, temp_min, temp_max, weather, weather_desc))
+        weather_view.grid(columnspan=3, row=3)
+
+    except:
+        weather_view.insert(parent='',index='end',iid=None,text='',
+        values=(city, None, None, None, None, None))
+        weather_view.grid(columnspan=3, row=3)
+
+
+root.title("US Weather Tracker")
+
+canvas = Canvas(root, width=600, height=120)
+canvas.grid(columnspan=3, rowspan=5)
+
+# Weather Tracker application - title
+label = Label(root, text="US Weather Tracker")
+label.grid(columnspan=3, row=0, pady=30)
+label.configure(font=("Courier", 25, "bold"), fg='#092653')
+
+# Weather Tracker application - title
+desc = Label(root, text="Provide a US city name below...")
+desc.grid(columnspan=3, row=1, pady=10)
+desc.configure(font=("Courier", 10))
+
+# Prompts the user to enter a city
+cityLabel = Label(text="City Name:")
+cityLabel.grid(column=0, row=2, pady=20)
+cityLabel.configure(font=("Courier", 16))
+
+cityEntry = Entry(root, width=50, borderwidth = 2)
+cityEntry.grid(column=1, row=2, pady=20)
+
+# Global variables to update button text and check if table exists
+newTable = True
+button_text = StringVar()
+button_text.set("Get Weather");
+
+# Function to add a new city to the list of weather forecasts
+def addWeather():
+    global newTable
+    if newTable == True:
+        city = cityEntry.get()
+        location = city + ",us"
+        querystring = {"q":location}
+        response = requests.request("GET", url, headers=headers, params=querystring)
+        createTable(response.json(), city)
+        button_text.set("Add New City");
+        newTable = False
+    elif newTable == False:
+        city = cityEntry.get()
+        location = city + ",us"
+        querystring = {"q":location}
+        response = requests.request("GET", url, headers=headers, params=querystring)
+        NewEntry(response.json(), city)
+
+# Button to add cities to weather forecast table
+getCityWeather = Button(root, textvariable=button_text, command=addWeather, width = 30,
+font=("Courier", 15), bg='#092653', fg="white").grid(columnspan=3, row=4, pady=10)
+
+
+root.mainloop()