I use annacoda27 for Windows 64-bit and my machine is Windows 10 pro.

When I type arachnado in CMD And this is an issue like that:

2017-03-10 11:57:28 [tornado.application] ERROR: Exception in callback <bound method ProcessStatsMonitor._emit of <arachnado.process_stats.ProcessStatsMonitor object at 0x00000000041854A8>>
Traceback (most recent call last): File "c:\users\king\anaconda2\lib\site-packages\tornado\ioloop.py", line 1041, in _run return self.callback()
File "c:\users\king\anaconda2\lib\site-packages\arachnado\process_stats.py", line 61, in _emit 'num_fds': self.process.num_fds(),
AttributeError: 'Process' object has no attribute 'num_fds'

This information refresh per second

When I stop arachnado some infomations come out

2017-03-10 11:57:33 [scrapy.crawler] INFO: Received SIGINT, shutting down gracefully. Send again to force
2017-03-10 11:57:33 [tornado.application] ERROR: Exception in callback <functools.partial object at 0x0000000004247188>
Traceback (most recent call last):Traceback (most recent call last):
File "c:\users\king\anaconda2\lib\site-packages\tornado\ioloop.py", line 612, in _run_callback ret = gen.convert_yielded(ret)
File "c:\users\king\anaconda2\lib\site-packages\singledispatch.py", line 210, in wrapper return dispatch(args[0].__class__)(*args, **kw)
File "c:\users\king\anaconda2\lib\site-packages\singledispatch.py", line 191, in dispatch impl = _find_impl(cls, registry)
File "c:\users\king\anaconda2\lib\site-packages\singledispatch.py", line 142, in _find_impl mro = _compose_mro(cls, registry.keys())
File "c:\users\king\anaconda2\lib\site-packages\singledispatch.py", line 98, in _compose_mro bases = set(cls.__mro__)
AttributeError: class DeferredList has no attribute '__mro__'

I don't know what happend in the code.

Could you help me to point it out ?

Best wishes