Scrapy 简单使用

安装过程

sudo yum groupinstall -y development tools
sudo yum install -y epel-relase libxslt-devel libxml2-devel openssl-devel
pip3 install Scrapy

 安装报错

报错
Collecting Twisted>=13.1.0 (from Scrapy)
  Could not find a version that satisfies the requirement Twisted>=13.1.0 (from Scrapy) (from versions: )
No matching distribution found for Twisted>=13.1.0 (from Scrapy)

解决：

1.  
   wget https://twistedmatrix.com/Releases/Twisted/17.1/Twisted-17.1.0.tar.bz2
2.  
   tar -jxvf Twisted-17.1.0.tar.bz2
3.  
   cd Twisted-17.1.0
4.  
   python setup.py install