在vscode中调试Appengine不起作用

Question

我在使用vscode调试我的appengine代码时遇到问题。 我按照文档中的所有说明进行操作，但运气不好，无法调试器工作。

我将task.json设置为

{
  // See https://go.microsoft.com/fwlink/?LinkId=733558
  // for the documentation about the tasks.json format
  "version": "2.0.0",
  "tasks": [
   {
      "label": "echo",
      "type": "shell",
      "command": "echo Hello"
   },
   {
      "label": "Launch Google App Engine",
      "command": "python",
      "type": "shell",
      "args": [
         "C:\\Program Files (x86)\\Google\\google_appengine\\dev_appserver.py",
         "--python_startup_script=${workspaceFolder}/pydev_startup.py",
         "--automatic_restart=no",
         "--max_module_instances=default:1",
         "${workspaceFolder}/app.yaml"
      ],
      "group": {
         "kind": "build",
         "isDefault": true
      }
   }
]
}

Launch.json是

  {
      "name": "Python: Remote Attach",
      "type": "python",
      "request": "attach",
      "port": 3000,
      "host": "localhost",
      "pathMappings": [
        {
          "localRoot": "${workspaceFolder}",
          "remoteRoot": "."
        }
      ]
    },

应用程序运行正常。我还可以将调试器连接到端口3000，但是当我在代码中放置断点时，我无法使调试器达到断点。