配置 uWSGI：

(venv)$ pip install uwsgi                           # 安装 uWSGI

Running with wsgi.py file(wsgi.py is the file name with app. callable):

(venv)$ uwsgi --socket 127.0.0.1:8080 --protocol=http -w wsgi

Runing under virtualenv, -H to set virtualenv to python path.

(venv)$ uwsgi --socket 127.0.0.1:8080 --protocol=http -H ./venv -w wsgi 

Supplying the pidfile option

(venv)$ uwsgi  ..... --pidfile=/tmp/uwsgi.pid
$ kill -HUP `cat /tmp/uwsgi.pid`     # using kill to send the signal, gracefully reload all the workers and the master process
$ kill -INT `cat /tmp/uwsgi.pid`     # immediately kill the entire uWSGI stack
(venv)$  uwsgi --reload  /tmp/uwsgi.pid  # or the convenience option --reload

Remember that you can only reload uWSGI when it’s running with the master process mode, but that’s usually the case though.

(venv)$ uwsgi  ..... --master   # enable master process

Ref:

• Managing the uWSGI server
• How to Deploy Python WSGI Applications Using uWSGI Web Server with Nginx