Add: CLI - WeatherPin Pincode-Based Weather Checker

Domains/cli/MiniProjects/WeatherPin/Readme.md

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+# WeatherPin: Pincode-Based Weather Checker (India)
+
+A smart CLI tool that fetches **current weather** for any Indian location using just a **6-digit pincode**—combining postal data and open weather APIs.
+
+## 💡 Real-Life Use Cases
+- **Travelers**: Check local weather before visiting a new city
+- **Delivery Teams**: Plan routes based on weather conditions
+- **Students**: Learn how to chain multiple public APIs
+- **Remote Workers**: See weather at client locations
+
+## Features
+- Input any Indian pincode (e.g., `110001`, `400001`)
+- Automatically resolves city and state
+- Shows temperature, wind, and weather condition
+- Works **without any API keys**
+- Clean, colorful terminal output
+
+## How to Run
+1. Ensure Python 3 is installed.
+2. Navigate to the project folder:
+   ```bash
+   cd Domains/CLI/MiniProjects/WeatherPin

Domains/cli/MiniProjects/WeatherPin/weather_pin.py

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+import urllib.request
+import json
+
+def get_location_from_pincode(pincode):
+    """Get city and state from Indian pincode."""
+    try:
+        url = f"https://api.postalpincode.in/pincode/{pincode}"
+        with urllib.request.urlopen(url) as response:
+            data = json.loads(response.read().decode())
+        if data[0]["Status"] == "Success":
+            # Use the first delivery-enabled office if possible
+            offices = data[0]["PostOffice"]
+            for office in offices:
+                if office.get("DeliveryStatus") == "Delivery":
+                    return office["Name"], office["District"], office["State"]
+            # Fallback to first office
+            return offices[0]["Name"], offices[0]["District"], offices[0]["State"]
+    except Exception:
+        pass
+    return None, None, None
+
+def get_weather(lat, lon):
+    """Get current weather using Open-Meteo (no API key)."""
+    try:
+        url = f"https://api.open-meteo.com/v1/forecast?latitude={lat}&longitude={lon}&current_weather=true"
+        with urllib.request.urlopen(url) as response:
+            return json.loads(response.read().decode()).get("current_weather")
+    except Exception:
+        return None
+
+def get_coordinates(city, state):
+    """Approximate coordinates for major Indian cities (fallback)."""
+    # Simplified mapping for demo – in real apps, use geocoding API
+    city = city.lower()
+    if "mumbai" in city: return 19.0760, 72.8777
+    if "delhi" in city or "new delhi" in city: return 28.6139, 77.2090
+    if "bangalore" in city or "bengaluru" in city: return 12.9716, 77.5946
+    if "chennai" in city: return 13.0827, 80.2707
+    if "kolkata" in city: return 22.5726, 88.3639
+    if "hyderabad" in city: return 17.3850, 78.4867
+    if "pune" in city: return 18.5204, 73.8567
+    if "ahmedabad" in city: return 23.0225, 72.5714
+    if "jaipur" in city: return 26.9124, 75.7873
+    if "lucknow" in city: return 26.8467, 80.9462
+    # Default fallback to Delhi
+    return 28.6139, 77.2090
+
+def display_weather(pincode, city, district, state, weather):
+    print("\n" + "\033[1;96m🌤️  WeatherPin: Pincode-Based Weather Report 🌤️\033[0m")
+    print("=" * 60)
+    print(f"📍 Pincode       : {pincode}")
+    print(f"🏙️  Location      : {city}, {district}, {state}")
+    if weather:
+        temp = weather.get("temperature", "N/A")
+        windspeed = weather.get("windspeed", "N/A")
+        weathercode = weather.get("weathercode", "?")
+        codes = {
+            0: "☀️ Clear",
+            1: "🌤️ Mainly Clear",
+            2: "⛅ Partly Cloudy",
+            3: "☁️ Overcast",
+            45: "🌫️ Fog",
+            51: "🌦️ Light Drizzle",
+            61: "🌧️ Light Rain",
+            63: "🌧️ Moderate Rain",
+            71: "❄️ Light Snow",
+            95: "⛈️ Thunderstorm"
+        }
+        condition = codes.get(weathercode, f"Code {weathercode}")
+        print(f"🌡️  Temperature   : {temp}°C")
+        print(f"💨 Wind Speed     : {windspeed} km/h")
+        print(f"🌈 Condition      : {condition}")
+    else:
+        print("\033[93m⚠️  Weather data unavailable (limited geocoding)\033[0m")
+        print("💡 Tip: Works best for major Indian cities.")
+    print("=" * 60 + "\n")
+
+def main():
+    print("\033[1;92m🇮🇳 WeatherPin: Get weather using Indian pincode!\033[0m")
+    print("\033[90mEnter a 6-digit pincode to see current weather.\033[0m\n")
+
+    pincode = input("Enter Pincode: ").strip()
+
+    if not pincode.isdigit() or len(pincode) != 6:
+        print("\033[91m❌ Please enter a valid 6-digit Indian pincode.\033[0m")
+        return
+
+    city, district, state = get_location_from_pincode(pincode)
+    if not city:
+        print("\033[91m❌ Could not find location for this pincode.\033[0m")
+        return
+
+    lat, lon = get_coordinates(city, state)
+    weather = get_weather(lat, lon)
+
+    display_weather(pincode, city, district, state, weather)
+
+if __name__ == "__main__":
+    main()