Python3.7 Scrapy crawl 运行出错解决方法

安装的是Python3.7，装上依赖包和scrapy后运行爬虫命令出错

  File "D:\Python37\lib\site-packages\scrapy\extensions\telnet.py", line 12, in <module>
     from twisted.conch import manhole, telnet
   File "D:\Python37\lib\site-packages\twisted\conch\manhole.py", line 154
     def write(self, data, async=False):
                               ^
 SyntaxError: invalid syntax

 Process finished with exit code 1

解决方法：

     def write(self, data, shark=False):
         self.handler.addOutput(data, shark)

     def addOutput(self, data, shark=False):
         if shark:
             self.terminal.eraseLine()
             self.terminal.cursorBackward(len(self.lineBuffer) + len(self.ps[self.pn]))

         self.terminal.write(data)

         if shark:
             if self._needsNewline():
                 self.terminal.nextLine()

             self.terminal.write(self.ps[self.pn])

将源码manhole.py中的async参数更改为shark（注意更换全部） 
可以直接点击错误跳转 
也可以通过文件路径查找 
D:\Python37\Lib\site-packages\twisted\conch\manhole.py

改完再运行就OK了