问题描述

我试图在Visaul Studio Code中为lambda（python）使用调试功能。我按照AWS Docs上的说明进行操作，但无法在调试模式下触发python应用程序。

请查看您是否知道该问题，以及如果我没有正确设置任何内容，谢谢。

参考： https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-cli-using-debugging.html

观察

启动应用程序

似乎没有在指定的调试端口上启动应用程序？

请求通话

无法到达端点并且未输入python应用程序

如果通过端口3000访问，则应用程序可以成功完成

已执行设置

初始化项目并按照说明安装ptvsd
在python代码上启用ptvsd
添加启动配置

项目结构

Python源代码

这基本上只是python的官方helloworld示例

import json

# import requests
import ptvsd

# Enable ptvsd on 0.0.0.0 address and on port 5890 that we'll connect later with our IDE
ptvsd.enable_attach(address=('localhost',5890),redirect_output=True)
ptvsd.wait_for_attach()

def lambda_handler(event,context):
    """Sample pure Lambda function

    Parameters
    ----------
    event: dict,required
        API Gateway Lambda Proxy Input Format

        Event doc: https://docs.aws.amazon.com/apigateway/latest/developerguide/set-up-lambda-proxy-integrations.html#api-gateway-simple-proxy-for-lambda-input-format

    context: object,required
        Lambda Context runtime methods and attributes

        Context doc: https://docs.aws.amazon.com/lambda/latest/dg/python-context-object.html

    Returns
    ------
    API Gateway Lambda Proxy Output Format: dict

        Return doc: https://docs.aws.amazon.com/apigateway/latest/developerguide/set-up-lambda-proxy-integrations.html
    """

    # try:
    #     ip = requests.get("http://checkip.amazonaws.com/")
    # except requests.RequestException as e:
    #     # Send some context about this error to Lambda Logs
    #     print(e)

    #     raise e

    return {
        "statusCode": 200,"body": json.dumps({
            "message": "hello world",# "location": ip.text.replace("\n","")
        }),}

启动配置

launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information,visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0","configurations": [
    {
        "name": "Python: Current File","type": "python","request": "launch","program": "${file}","console": "integratedTerminal"
    },{
        "name": "SAM CLI Python Hello World","request": "attach","port": 5890,"host": "localhost","pathMappings": [
            {
                "localRoot": "${workspaceFolder}/hello_world/build","remoteRoot": "/var/task"
            }
        ]
    }
    ]
}