生成命令行接口--google开源的fire使用体验【python-fire】

在python中,命令行接口常用的argparse 和click,但是相对于python-fire 来说灵活度太缺了,fire可以直接将python中的函数,以命令行显示.

简单的介绍几个例子:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#filename: fire-demo.py 
__author__ = 'xijun1' import fire def demo(param): """ just a demo :param param: any str :return: """ print "hello {} !".format(param) return; if __name__ == '__main__': fire.Fire()

执行的格式为:  python 如果fire.Fire()没有指定名称时:

需要在执行命令行时,带入函数名:   python  fire-demo.py  demo ,同时,如果函数有参数是,需要输入参数,不然会不错,并提示:

 1 python_demo python fire-demo.py demo
 2 Fire trace:
 3 1. Initial component
 4 2. Accessed property "demo"
 5 3. ('The function received no value for the required argument:', 'param')
 6 
 7 Type:        function
 8 String form: <function demo at 0x10e424c80>
 9 File:        ~/github/python_demo/fire-demo.py
10 Line:        20
11 Docstring:   just a demo
12 :param param:  any str
13 :return:
14 
15 Usage:       fire-demo.py demo PARAM
16              fire-demo.py demo --param PARAM

如果带入参数: python  fire-demo.py  demo “google”

1  python_demo python fire-demo.py demo  "google" 
2 hello google !

或者我们也可以这样:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = 'xijun1'
import fire


def demo(param):
    """
    just a demo
    :param param:  any str
    :return:
    """
    print "hello {} !".format(param)
    return;



if __name__ == '__main__':
    fire.Fire(demo)

只需要执行:

python_demo python fire-demo.py google
hello google !

当我们面对一个类Class的时候:

class ho:
    def __init__(self,type):
        self.type = type
        pass

    def hodemo(self, param):
        """

        :param param: any string
        :return:
        """
        print "{} hello {} !".format( self.type,param)
        return;

我们只需要执行:

python_demo python fire-demo.py ho --type "gxjun"  hodemo "google"
gxjun hello google !

当然我们也可以将类写入Fire中:

python_demo python fire-demo.py --type  gxjun hodemo google
gxjun hello google !

 

posted @ 2018-11-30 10:48  龚细军  阅读(1572)  评论(0编辑  收藏  举报