安装scrapy-redis，用pip install scrapy-redis 命令报如下错
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7f0725fc4110>, 'Connection to 101.236.54.122 timed out. (connect timeout=15)')': /simple/scrapy-redis/
在网上查，说换的url会好
pip install scrapy-redis -i https://pypi.tuna.tsinghua.edu.cn/simple/
但依然不好使，所以换用easy_install命令安装
easy_install scrapy-redis
成功