Create weather.py

tools/weather.py

@@ -0,0 +1,91 @@
+import json
+import requests
+from typing import Any, Optional
+from smolagents.tools import Tool
+
+
+class WeatherForecast(Tool):
+    name = "weather_forecast"
+    description = "Performs a weather search via open-mateo with openstreetmaps to get latlon then returns the weather results."
+    inputs = {'city': {'type': 'string', 'description': 'The name of the city required for weather gathering.'}}
+    output_type = "string"
+
+    def __init__(self, max_results=10, **kwargs):
+        super().__init__()
+
+    def forward(self) -> str:
+        results = self.get_weather_forecast()
+        if len(results) == 0:
+            raise Exception("No results found! Try a less restrictive/shorter query.")
+        postprocessed_results = [f"[{result['title']}]({result['href']})\n{result['body']}" for result in results]
+        return "## Search Results\n\n" + "\n\n".join(postprocessed_results)
+
+
+    def get_weather_forecast(self, city_name: str) -> str:
+        """A tool that fetches the current weather/temperature of a specified city.
+        Args:
+            city_name: A string representing a valid city (e.g., 'Bangalore').
+        """
+
+        latitude, longitude = self.get_coordinates_no_api_key(city_name)
+        
+        base_url = "https://api.open-meteo.com/v1/forecast"  # No API key needed for this version
+        params = {
+            "latitude": latitude,
+            "longitude": longitude,
+            "hourly": "temperature_2m,precipitation,wind_speed",
+            "daily": "temperature_2m_max,temperature_2m_min,precipitation_sum",
+            "forecast_days": 7,
+            "timezone": "auto"
+        }
+
+        try:
+            response = requests.get(base_url, params=params) # No headers needed
+            response.raise_for_status()
+            weatherJSON = response.json()
+            cityName = weatherJSON.get('location').get('name')
+            cityTemp = weatherJSON.get('hourly').get('temperature_2m')
+            averageTemp = round(mean(cityTemp), 1)
+            hourlyunits = weatherJSON.get('hourly_units').get('temperature_2m')
+            return weather_data
+            return f"The current Temperature in {cityName} is {averageTemp}{hourlyunits}!"
+        except requests.exceptions.RequestException as e:
+            print(f"Error fetching weather data: {e}")
+            return None
+        except json.JSONDecodeError as e:
+            print(f"Error decoding JSON response: {e}")
+            return None
+
+    def get_coordinates_no_api_key(self, city_name: str) -> [float, float]:
+        """Gets coordinates using OpenStreetMap's Nominatim (no API key, but with limitations)."""
+
+        # This approach is less reliable and might have rate limits.
+        # It's suitable for basic use cases but not for production.
+
+        geocoding_url = "https://nominatim.openstreetmap.org/search" # No API Key needed
+        params = {
+            "q": city_name,
+            "format": "json",
+            "limit": 1
+        }
+
+        try:
+            response = requests.get(geocoding_url, params=params)
+            response.raise_for_status()
+            geocoding_data = response.json()
+
+            if geocoding_data:  # Check if any results were found
+                latitude = float(geocoding_data[0]["lat"])
+                longitude = float(geocoding_data[0]["lon"])
+                return latitude, longitude
+            else:
+                print(f"Could not find coordinates for {city_name}")
+                return None, None
+
+        except requests.exceptions.RequestException as e:
+            print(f"Error during geocoding: {e}")
+            return None, None
+        except (KeyError, IndexError, ValueError) as e:  # Handle more potential errors
+            print(f"Error parsing geocoding response: {e}")
+            return None, None
+