Update app.py

app.py

@@ -31,19 +31,14 @@ wolfram.run("What is 2x+5 = -3x + 7?")
 
 """## Standard Tool"""
 
-from langchain.tools import DuckDuckGoSearchTool
+
 from langchain.agents import Tool
 from langchain.tools import BaseTool
 from langchain.agents import load_tools, initialize_agent, AgentType
 
-search = DuckDuckGoSearchTool()
+
 # defining a single tool
 tools = [
-    Tool(
-        name = "search",
-        func=search.run,
-        description="useful for when Da Vinci needs to answer questions about current events. You should ask targeted questions"
-    ),
     Tool(
         name = "wikipedia",
         func=wikipedia.run,