如何检查异步HTTP会话请求状态码？解决ClientResponse属性错误

问题描述 #

我编写了一段Python异步HTTP请求代码，运行时触发如下错误：

ERROR: 'ClientResponse' object has no attribute 'status_code' Target http://localhost:8080/site.html is not stable

本地部署的站点在浏览器中可正常访问，但代码执行报错，推测问题出在await response.status_code的实现上，想知道如何正确检查异步HTTP会话请求的状态码并解决该错误。

原代码如下：

async def review(url, session, **kwargs):

try:
        #this checks the method from the list of ARGS kinda deleted the code 
    if method == 'GET':


        async with session.get(url) as response:

                # i did some printing in the code after the if condition but it was not executed 
            if await response.status_code == 200:
                print('[bold green]`[+]` [default]Target is responsive')
                print(response.data)
                return await response


except Exception as err:
    print(f'[red]ERROR {err} Target {url} is not stable ')
        url_obj['stable'] = False

else:
    url_obj['stable'] = True
    status = response.status_code
finally:
    if url_obj.get('stable') is True:
        return f'Target is stable'
    else:
        return f'Target is unstable status code {status}'


async def main(url, **kwargs):
    async with ClientSession() as session:
        data= await review(URL, session, **kwargs)
            print(data)
           

def probe(url, **kwargs):
    asyncio. run(main(url,**kwargs))

错误原因与修正方案 #

核心错误点 #

• 属性名混淆：aiohttp的ClientResponse对象用status表示状态码，而status_code是requests库的属性名，这是跨库API混淆导致的错误。
• 多余的await：status是同步属性，直接访问即可，不需要加await，原代码中await response.status_code既错误又多余。
• 其他代码问题：存在缩进错误、未定义变量（method、url_obj、URL）、response.data属性不存在（aiohttp需用read()/text()获取响应内容）等问题。

修正后的完整代码 #

import asyncio
from aiohttp import ClientSession

async def review(url, session, **kwargs):
    url_obj = {'stable': False}
    status = None
    # 从kwargs获取请求方法，默认使用GET
    method = kwargs.get('method', 'GET')
    
    try:
        if method == 'GET':
            async with session.get(url) as response:
                # 直接访问status属性获取状态码，无需await
                status = response.status
                if status == 200:
                    print('[bold green][+][default]Target is responsive')
                    # 获取响应文本内容，如需字节用await response.read()
                    response_content = await response.text()
                    print(response_content)
                    url_obj['stable'] = True
                    return response
                else:
                    url_obj['stable'] = False
    except Exception as err:
        print(f'[red]ERROR {err} Target {url} is not stable ')
        url_obj['stable'] = False
    else:
        url_obj['stable'] = True
    finally:
        if url_obj['stable']:
            return 'Target is stable'
        else:
            return f'Target is unstable status code {status}'

async def main(url, **kwargs):
    async with ClientSession() as session:
        # 修正变量名，使用传入的url参数而非未定义的URL
        data = await review(url, session, **kwargs)
        print(data)

def probe(url, **kwargs):
    # 修正asyncio.run的空格问题
    asyncio.run(main(url,**kwargs))

# 示例调用
probe('http://localhost:8080/site.html')

关键修正说明 #

1. 状态码获取：将await response.status_code改为response.status，直接访问同步属性。
2. 响应内容获取：用await response.text()（获取字符串）或await response.read()（获取字节）替代不存在的response.data。
3. 变量与缩进修复：定义缺失的url_obj、method、status变量，修正main函数中未定义的URL为参数url，统一代码缩进。
4. 异常处理优化：确保finally块中status变量始终有值，避免未定义错误。

内容的提问来源于stack exchange，提问作者geek