Update app.py

app.py

@@ -22,7 +22,7 @@ def calculator_tool(expression: str)-> str: # Returns a string result
         response = requests.get(api_url)
 
         if response.status_code == 200:
-            return f"Result: {response.json()}"
+            return f"Result: {response.text}"
         else:
             return f"Error: {response.text}"
     except Exception as e: