Update app.py

app.py

@@ -323,7 +323,7 @@ python_tool = PythonREPLTool()
 tools.append(Tool(name="python_repl", func=python_tool.run, description="Python 코드를 실행합니다."))
 from langchain import hub
 prompt=hub.pull("hwchase17/structured-chat-agent")
-from langchain_experimental.tools.shell.tool import ShellTool
+from langchain_community.tools.shell.tool import ShellTool
 shell_tool = ShellTool()
 tools.append(Tool(name="shell_exec", func=shell_tool.run, description="로컬 명령어를 실행합니다."))