client.py 文件源码

def _setup(self):
        if self._session is None:
            logger.debug("Creating session")
            self._session = aiohttp.ClientSession()

        # this will allow requests to be made starting from this point
        self.setup.early.set_result(True)

        init_tasks = self.init_tasks
        if callable(init_tasks):
            init_tasks = init_tasks()

        if init_tasks:
            logger.debug("Starting init tasks")
            await asyncio.gather(*init_tasks)

        self.setup.set_result(True)