ubuntu 16.04安装scrapy

之前由于双显卡死机的问题一直没如ubuntu。现在16.04解决了这个问题，遂转战ubuntu

先安装pip：apt install python-pip

第一次尝试安装scrapy ：pip install scrapy

报错：Failed building wheel for lxml

             Failed building wheel for cryptography

            Failed cleaning build dir for cryptography

           Failed building wheel for cffi

说明后面这几个ubuntu16没有自带

经过各种尝试 输入下面的命令即可

apt-get install python-lxml

apt-get install libxslt1-dev

 apt-get install python-setuptools

apt-get install libevent-dev

 apt-get install libffi-dev

apt-get install python-openssl

apt-get install libssl-dev