Update app.py

app.py

@@ -9,14 +9,29 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
+def compare_weather_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+    """Compares the weather in two cities using OpenWeather API. Returns temperature and description. 
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        arg1: First city name (e.g., "London")
+        arg2: Second city name (e.g., "New York")
     """
-    return "What magic will you build ?"
+    try:
+        api_key = os.getenv("OPENWEATHER_API_KEY")
+        if not api_key:
+            return "Missing OpenWeather API key. Please set OPENWEATHER_API_KEY in your Space secrets."
+
+        def fetch(city):
+            url = f"https://api.openweathermap.org/data/2.5/weather?q={city}&appid={api_key}&units=metric"
+            res = requests.get(url)
+            if res.status_code != 200:
+                return f"{city.title()}: Error - {res.json().get('message', 'unknown error')}"
+            data = res.json()
+            return f"{city.title()}: {data['main']['temp']}°C, {data['weather'][0]['description']}"
+
+        return f"{fetch(city1)}\n\n{fetch(city2)}"
+    except Exception as e:
+        return f"Error occurred: {str(e)}"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: