Update app.py

app.py

@@ -14,7 +14,9 @@ def search_web(query:str)-> str: #it's import to specify the return type
     Args:
         query: what you want to search
     """
-    return DuckDuckGoSearchTool(query)
+    search_tool = DuckDuckGoSearchTool()
+    results = search_tool(query)    
+    return results
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: