Add weather_notifier.py and README.md

Author: tillandert

weather_notifier/README.md

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+# Weather Notifier
+
+This script provides a simple GUI application to display weather information for a specified city and can notify the user at regular intervals.
+
+## Prerequisites
+
+- Python 3.x
+- `requests` library
+
+## Installation
+
+1. Clone the repository or download the script.
+2. Install the required libraries using pip:
+    ```sh
+    pip install requests
+    ```
+
+## Setup
+
+1. Obtain an API key from [OpenWeatherMap](https://openweathermap.org/api).
+2. Set the API key as an environment variable:
+    - On Windows:
+        ```sh
+        setx OPENWEATHERMAP_API_KEY "your_api_key_here"
+        ```
+    - On macOS/Linux:
+        ```sh
+        export OPENWEATHERMAP_API_KEY="your_api_key_here"
+        ```
+
+## Usage
+
+1. Navigate to the directory containing the script.
+2. Run the script:
+    ```sh
+    python weather_notifier.py
+    ```
+3. Enter the city name and the interval for notifications.
+4. Click "Get Weather" to display the current weather.
+5. Click "Start Notifier" to start receiving weather notifications at the specified interval.
+6. Click "Stop Notifier" to stop the notifications.
+
+## Features
+
+- Display current weather information for a specified city.
+- Notify the user at regular intervals with updated weather information.
+- Supports intervals in seconds, minutes, hours, and days.
+
+## Acknowledgements
+
+- [OpenWeatherMap](https://openweathermap.org/) for providing the weather API.

weather_notifier/weather_notifier.py

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+import tkinter as tk
+from tkinter import messagebox
+import requests
+import time
+import threading
+import os
+
+# Global variable to control the notifier state
+notifier_running = False
+
+# Function to get weather data
+def get_weather(api_key, city):
+    base_url = "http://api.openweathermap.org/data/2.5/weather?"
+    complete_url = base_url + "appid=" + api_key + "&q=" + city
+    response = requests.get(complete_url)
+    return response.json()
+
+# Function to display weather
+def display_weather():
+    city = city_entry.get()
+    api_key = os.getenv("OPENWEATHERMAP_API_KEY")  # Get API key from environment variable
+    if not api_key:
+        messagebox.showerror("Error", "API key not found in environment variables")
+        return
+    
+    weather_data = get_weather(api_key, city)
+    
+    if weather_data["cod"] != "404":
+        main = weather_data["main"]
+        weather_desc = weather_data["weather"][0]["description"]
+        temp_celsius = main["temp"] - 273.15  # Convert from Kelvin to Celsius
+        temp_fahrenheit = (temp_celsius * 9/5) + 32  # Convert from Celsius to Fahrenheit
+        messagebox.showinfo("Weather Info", f"City: {city}\nTemperature: {temp_celsius:.2f}°C / {temp_fahrenheit:.2f}°F\nDescription: {weather_desc}")
+    else:
+        messagebox.showerror("Error", "City Not Found")
+
+# Function to run the notifier at fixed intervals
+def run_notifier(interval):
+    global notifier_running
+    while notifier_running:
+        display_weather()
+        time.sleep(interval)
+
+# Function to start the notifier in a separate thread
+def start_notifier():
+    global notifier_running
+    notifier_running = True
+    interval = int(interval_entry.get())
+    time_unit = time_unit_var.get()
+    
+    if time_unit == "Minute(s)":
+        interval *= 60
+    elif time_unit == "Hour(s)":
+        interval *= 3600
+    elif time_unit == "Day(s)":
+        interval *= 86400
+    
+    threading.Thread(target=run_notifier, args=(interval,)).start()
+
+# Function to stop the notifier
+def stop_notifier():
+    global notifier_running
+    notifier_running = False
+
+# GUI setup
+root = tk.Tk()
+root.title("Weather Notifier")
+
+tk.Label(root, text="City:").grid(row=0, column=0)
+city_entry = tk.Entry(root)
+city_entry.grid(row=0, column=1)
+
+tk.Label(root, text="Interval:").grid(row=1, column=0)
+interval_entry = tk.Entry(root)
+interval_entry.grid(row=1, column=1)
+
+time_unit_var = tk.StringVar(value="Second(s)")
+time_unit_menu = tk.OptionMenu(root, time_unit_var, "Second(s)", "Minute(s)", "Hour(s)", "Day(s)")
+time_unit_menu.grid(row=1, column=2)
+
+tk.Button(root, text="Get Weather", command=display_weather).grid(row=2, column=0)
+tk.Button(root, text="Start Notifier", command=start_notifier).grid(row=2, column=1)
+tk.Button(root, text="Stop Notifier", command=stop_notifier).grid(row=2, column=2)
+
+root.mainloop()