Flask - Flask扩展，Flask-Script

一.Flask-Script

　　Flask-Script是一个Flask扩展，为Flask程序添加了一个命令行解析器。Flask-Script自带了一组常用选项，而且还支持自定义命令

pip3 install flask-script

from flask_script import Manager

....

manager = Manager(app)
# 这里服务器有manager启动，启动后就能解析命令行了
if __name__ == '__main__':
    manager.run()

(venv) zhangjindeMacBook-Pro:blueprint zhangjin$ python s1.py 
usage: s1.py [-?] {shell,runserver} ...

positional arguments:
  {shell,runserver}
    shell            Runs a Python shell inside Flask application context.
    runserver        Runs the Flask development server i.e. app.run()

optional arguments:
  -?, --help         show this help message and exit
(venv) zhangjindeMacBook-Pro:blueprint zhangjin$ 

　　shell命令用于在程序的上下文启动Python Shell会话，可以使用这个会话运行任务或测试，还可以调试异常。

　　runserver就是来启动Web服务器了，

(venv) zhangjindeMacBook-Pro:blueprint zhangjin$ python s1.py runserver -h
usage: s1.py runserver [-?] [-h HOST] [-p PORT] [--threaded]
                       [--processes PROCESSES] [--passthrough-errors] [-d]
                       [-D] [-r] [-R] [--ssl-crt SSL_CRT] [--ssl-key SSL_KEY]
s1.py runserver: error: argument -h/--host: expected one argument
(venv) zhangjindeMacBook-Pro:blueprint zhangjin$ 

(venv) zhangjindeMacBook-Pro:blueprint zhangjin$ python s1.py runserver -h 0.0.0.0 -p 8000
 * Serving Flask app "s1" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://0.0.0.0:8000/ (Press CTRL+C to quit)