flags2_asyncio_executor.py 文件源码

def download_one(cc, base_url, semaphore, verbose):
    try:
        with (yield from semaphore):
            image = yield from get_flag(base_url, cc)
    except web.HTTPNotFound:
        status = HTTPStatus.not_found
        msg = 'not found'
    except Exception as exc:
        raise FetchError(cc) from exc
    else:
        loop = asyncio.get_event_loop()  # <1>
        loop.run_in_executor(None,  # <2>
                save_flag, image, cc.lower() + '.gif')  # <3>
        status = HTTPStatus.ok
        msg = 'OK'

    if verbose and msg:
        print(cc, msg)

    return Result(status, cc)
# END FLAGS2_ASYNCIO_EXECUTOR