scrapy使用报错cannot import name ‘Deque‘

一、环境

1、python3.6.0

2、redhat 7

3、scrapy

二、问题

使用scrapy 创建新项目时，报错如下：

[root@#localhost pp]# scrapy startproject mySpider Traceback (most recent call last):   File "/usr/local/bin/scrapy", line 5, in <module>     from scrapy.cmdline import execute   File "/usr/local/lib/python3.6/site-packages/scrapy/__init__.py", line 12, in <module>     from scrapy.spiders import Spider   File "/usr/local/lib/python3.6/site-packages/scrapy/spiders/__init__.py", line 10, in <module>     from scrapy.http import Request   File "/usr/local/lib/python3.6/site-packages/scrapy/http/__init__.py", line 8, in <module>     from scrapy.http.headers import Headers   File "/usr/local/lib/python3.6/site-packages/scrapy/http/headers.py", line 3, in <module>     from scrapy.utils.python import to_unicode   File "/usr/local/lib/python3.6/site-packages/scrapy/utils/p