scrapy 'TelnetConsole' object has no attribute 'port'报错

(crawl_scrapy) D:\Project\PythonProject\crawl\scrapy\myspider>scrapy crawl itcast
2020-07-02 18:26:02 [scrapy.utils.signal] ERROR: Error caught on signal handler: <bound method
TelnetConsole.start_listening of <scrapy.extensions.telnet.TelnetConsole object at 0x0000026FB7
8D8FA0>>
Traceback (most recent call last):
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\scrapy\utils\defer.py", line 164, in maybeDefe
rred_coro
    result = f(*args, **kw)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\pydispatch\robustapply.py", line 55, in robust
Apply
    return receiver(*arguments, **named)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\scrapy\extensions\telnet.py", line 65, in star
t_listening
    self.port = listen_tcp(self.portrange, self.host, self)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\scrapy\utils\reactor.py", line 22, in listen_t
cp
    return reactor.listenTCP(x, factory, interface=host)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\posixbase.py", line 495, in l
istenTCP
    p.startListening()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 1356, in startL
istening
    skt = self.createInternetSocket()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 1340, in create
InternetSocket
    s = base.BasePort.createInternetSocket(self)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\base.py", line 1201, in creat
eInternetSocket
    fdesc._setCloseOnExec(s.fileno())
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\fdesc.py", line 48, in _setCl
oseOnExec
    flags = fcntl.fcntl(fd, fcntl.F_GETFD)
AttributeError: module 'fcntl' has no attribute 'F_GETFD'
2020-07-02 18:26:03 [scrapy.downloadermiddlewares.robotstxt] ERROR: Error downloading <GET http
://www.itcast.cn/robots.txt>: module 'fcntl' has no attribute 'F_GETFD'
Traceback (most recent call last):
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\scrapy\core\downloader\middleware.py", line 44
, in process_request
    return (yield download_func(request=request, spider=spider))
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\endpoints.py", line 578, in c
onnect
    self._reactor.connectTCP(
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\posixbase.py", line 500, in c
onnectTCP
    c.connect()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\base.py", line 1132, in conne
ct
    self.transport = transport = self._makeTransport()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 1548, in _makeT
ransport
    return Client(self.host, self.port, self.bindAddress, self, self.reactor)
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 736, in __init_
_
    skt = self.createInternetSocket()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 572, in createI
nternetSocket
    fdesc._setCloseOnExec(s.fileno())
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\fdesc.py", line 48, in _setCl
oseOnExec
    flags = fcntl.fcntl(fd, fcntl.F_GETFD)
AttributeError: module 'fcntl' has no attribute 'F_GETFD'
2020-07-02 18:26:03 [scrapy.core.scraper] ERROR: Error downloading <GET http://www.itcast.cn/ch
annel/teacher.shtml>
AttributeError: module 'fcntl' has no attribute 'F_GETFD'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\scrapy\core\downloader\middleware.py", line 44
, in process_request
    return (yield download_func(request=request, spider=spider))
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\endpoints.py", line 578, in c
onnect
    self._reactor.connectTCP(
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\posixbase.py", line 500, in c
onnectTCP
    c.connect()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\base.py", line 1132, in conne
ct
    self.transport = transport = self._makeTransport()
  File "f:\pyenvs\crawl_scrapy\lib\site-packages\twisted\internet\tcp.py", line 1548, in _makeT

一定要从头看错误日志，从根源上解决。我的是把python下的lib\fcntl.py删除