Python3.7 Scrapy 提示def write(self,data,asyc) 语法错误

Scrapy 执行爬虫任务，提示如下错误信息如下：

from twisted.conch import manhole, telnet 
File “D:\python3.6\Lib\site-packages\twisted\conch\manhole.py”, line 154 
def write(self, data, async=False): 
^ 
SyntaxError: invalid syntax

错误产生原因:python3.7中把 async当成关键字了，关键字当作参数，python抛出异常.

解决办法：找到D:\python3.6\Lib\site-packages\twisted\conch\manhole.py 文件，全局替换async.