USWeatherForecast.py

import tkinter as tk
import tkinter.ttk as 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.Tk()
weather_frame = tk.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=tk.NO)
    weather_view.column("city", anchor=tk.CENTER, width=85)
    weather_view.column("temperature", anchor=tk.CENTER, width=95)
    weather_view.column("minTemp", anchor=tk.CENTER, width=75)
    weather_view.column("maxTemp", anchor=tk.CENTER, width=75)
    weather_view.column("condition", anchor=tk.CENTER, width=75)
    weather_view.column("description", anchor=tk.CENTER, width=95)

    weather_view.heading("#0", text="", anchor=tk.CENTER)
    weather_view.heading("city", text="City Name", anchor=tk.CENTER)
    weather_view.heading("temperature", text="Temperature (F)",
                         anchor=tk.CENTER)
    weather_view.heading("minTemp", text="Min Temp", anchor=tk.CENTER)
    weather_view.heading("maxTemp", text="Max Temp", anchor=tk.CENTER)
    weather_view.heading("condition", text="Condition", anchor=tk.CENTER)
    weather_view.heading("description", text="Description", anchor=tk.CENTER)
    NewEntry(data, city)


# Populate table with weather information for each new US city
def NewEntry(data, city):
    try:
        temp = str(round((((int(data['list'][1]['main']['temp'])
                            - 273.15) * 1.8) + 32), 2))
        temp_min = str(round((((int(data['list'][1]['main']['temp_min'])
                                - 273.15) * 1.8) + 32), 2))
        temp_max = str(round((((int(data['list'][1]['main']['temp_max'])
                                - 273.15) * 1.8) + 32), 2))
        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 Exception:
        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 = tk.Canvas(root, width=600, height=120)
canvas.grid(columnspan=3, rowspan=5)

# Weather Tracker application - title
label = tk.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 = tk.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 = tk.Label(text="City Name:")
cityLabel.grid(column=0, row=2, pady=20)
cityLabel.configure(font=("Courier", 16))

cityEntry = tk.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 = tk.StringVar()
button_text.set("Get Weather")


# Function to add a new city to the list of weather forecasts
def addWeather():
    global newTable
    if newTable:
        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 not newTable:
        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 = tk.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()