python -fire 快速创建命令行接口

$ pip install fire

import fire

  -  运行
```sh
python hello.py  # Hello World!
python hello.py --name=David  # Hello David!
python hello.py --help  # Shows usage information

# -*- coding:utf-8 -*-
# /usr/bin/python
'''
-------------------------------------------------
   File Name   :  envsInfo.py
   Description :  确认开发环境
   Run Script  :  python  envsInfo.py all
       Param   :  -all, sys, py, qlib
   Envs        :  python == 3.66
   Date        :  2021/3/4  下午4:58
   CodeStyle   :  standard, simple, readable, maintainable, and portable!
-------------------------------------------------
   Change Activity:
          2021/3/4 : build
-------------------------------------------------
__Author__ = "Yan Errol 13075851954"
__Email__ = "260187357@qq.com"
__Copyright__ = "Copyright 2021, Yan Errol"
-------------------------------------------------
'''
import warnings
warnings.filterwarnings("ignore")

import sys,os
import platform
import qlib
import fire
import pkg_resources
from pathlib import Path

QLIB_PATH = Path(__file__).absolute().resolve().parent.parent


class InfoCollector:
    """
    User could collect system info by following commands
    `cd scripts && python collect_info.py all`
    - NOTE: please avoid running this script in the project folder which contains `qlib`
    """

    def sys(self):
        """collect system related info"""
        for method in ["system", "machine", "platform", "version"]:
            print(getattr(platform, method)())

    def py(self):
        """collect Python related info"""
        print("Python version: {}".format(sys.version.replace("\n", " ")))

    def qlib(self):
        """collect qlib related info"""
        print("Qlib version: {}".format(qlib.__version__))
        REQUIRED = [
            "numpy",
            "pandas",
            "scipy",
            "requests",
            "sacred",
            "python-socketio",
            "redis",
            "python-redis-lock",
            "schedule",
            "cvxpy",
            "hyperopt",
            "fire",
            "statsmodels",
            "xlrd",
            "plotly",
            "matplotlib",
            "tables",
            "pyyaml",
            "mlflow",
            "tqdm",
            "loguru",
            "lightgbm",
            "tornado",
            "joblib",
            "fire",
            "ruamel.yaml",
            "tensorflow==1.15.0",
            "lxml",
            "yahooquery"
        ]

        for package in REQUIRED:
            version = pkg_resources.get_distribution(package).version
            print(f"{package}=={version}")

    def file(self):
        '''collect file info'''
        print("pwd:{}".format(os.getcwd()))

    def all(self):
        """collect all info"""
        for method in ["sys", "py", "qlib","file"]:
            getattr(self, method)()
            print()


if __name__ == "__main__":
    fire.Fire(InfoCollector)