Demo运行不了

[a224327780]

(shims) ➜  Python python ruia_test.py
Traceback (most recent call last):
  File "/home/cloudide/.local/lib/python3.8/site-packages/ruia/spider.py", line 111, in __init__
    self.request_session = getattr(self, "request_session")
AttributeError: 'HackerNewsSpider' object has no attribute 'request_session'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "ruia_test.py", line 27, in <module>
    HackerNewsSpider.start()
  File "/home/cloudide/.local/lib/python3.8/site-packages/ruia/spider.py", line 314, in start
    spider_ins = cls(middleware=middleware, loop=loop, **spider_kwargs)
  File "/home/cloudide/.local/lib/python3.8/site-packages/ruia/spider.py", line 113, in __init__
    self.request_session = ClientSession()
  File "/home/cloudide/.local/lib/python3.8/site-packages/aiohttp/client.py", line 297, in __init__
    loop = loop or asyncio.get_running_loop()
RuntimeError: no running event loop