flags2_await.py 文件源码

def get_flag(base_url, cc): # <2>
    url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
    async with aiohttp.ClientSession() as session:         
        with async_timeout.timeout(10):         
            async with session.get(url) as resp:             
                if resp.status == 200:
                    image = await resp.read()  # <5>
                    return image
                elif resp.status == 404:
                    raise web.HTTPNotFound()
                else:
                    raise aiohttp.HttpProcessingError(
                        code=resp.status, message=resp.reason,
                        headers=resp.headers)