首先安装python2.7
安装 easy_install 和 pip
https://bootstrap.pypa.io/ez_setup.py
https://raw.githubusercontent.com/pypa/pip/master/contrib/get-pip.py
安装tornado 无报错
http://www.tornadoweb.org/en/stable/
但是在跑helloworld.py的时候会报错所以需要到这里安装backports.ssl_match_hostname
https://pypi.python.org/packages/source/b/backports.ssl_match_hostname/
