1.出现这个警告是python没有安装uwsgi
!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!
no request plugin is loaded, you will not be able to manage requests.
you may need to install the package for your language of choice, or simply load it with --plugin.
!!!!!!!!!!! END OF WARNING !!!!!!!!!!
sudo pip install uwsgi
sudo apt-get install uwsgi-plugin-python
资料来源：http://serverfault.com/questions/640364/uwsgi-cannot-load-virtualenv