Update app.py

app.py

@@ -37,7 +37,7 @@ def search_wikipedia(query: str) -> str:
 def web_search(query: str) -> str:
     """Search the web for general information. Use this when Wikipedia is not sufficient."""
     try:
-        from duckduckgo_search import DDGS
+        from ddgs import DDGS
         with DDGS() as ddgs:
             results = list(ddgs.text(query, max_results=3))
             if results:
@@ -50,6 +50,7 @@ def web_search(query: str) -> str:
     except Exception as e:
         return f"Error performing web search: {str(e)}"
 
+
 @tool
 def calculator(expression: str) -> str:
     """Evaluate mathematical expressions. Example: '15 + 27' or '2 * (3 + 4)'."""