Trial of writing the configuration file in Python instead of .ini etc.

Try to write the configuration file in Python instead of .ini etc. ** and give it **.

The configuration file given by writing in Python is like "trial-config1.py" below if you write the setting in the "config (cfg)" function and assign the setting value to the "cfg" object. (Example).

** Function return value ** and ** can be set separately for each case **. It is also possible to read another configuration file and overwrite (nested) it.

trial-config1.py　(setting file)

# -*- coding: utf-8 -*-

#Configuration file by py

import socket

# sec: config

def config(cfg):
    
    # sec:Substituting the setting value into cfg
    
    cfg.setting1 = True
    
    # sec:Function return value can be set
    
    cfg.name = socket.gethostname() #hostname(★ Function return value can be set)
    cfg.ip = socket.gethostbyname(cfg.name) #IP address
    
    # sec:Can be set separately for each case
    
    if "PC" in cfg.name: # (★ Can be set separately for each case)
        cfg.setting2 = True
    
    # sec:Can be set hierarchically
    
    cfg.setting3 = cfg.__class__() # (★ Can be set hierarchically)
    cfg.setting3.setting1 = True
    
    # sec:Configuration files can be nested
    
    __import__("trial-config2").config(cfg) # (★ Configuration files can be nested) 

Another configuration file also uses the "config (cfg)" function and "cfg" object, and is something like "trial-config2.py" below (example).

trial-config2.py　(setting file)

# -*- coding: utf-8 -*-

#Configuration file by py

# sec: config

def config(cfg):
    
    # sec:Overwrite the original settings
    
    cfg.name += " +Overwrite"
    cfg.ip += " +Overwrite"
    
    # sec:Substitute new settings
    
    cfg.setting11 = True

When "trial-config1.py" and "trial-config2.py" are placed as follows,

:File structure:

App side script.py
trial-config/
  trial-config1.py (setting file)
  trial-config2.py (setting file)

To read and use the configuration file written in Python above on the application side, read it with "** __ import__ (" trial-config1 "). Config (cfg) **" etc., and each in "cfg" In the form of using the value, the following code.

App side script.py

# -*- coding: utf-8 -*-

#How to configure and nest configuration definition files with py

import sys

# sec: main

def main():
    
    # sec:Storage class
    
    class Config: pass
    cfg = Config()
    
    # sec:Read
    
    sys.path.append(r"./trial-config/")
    __import__("trial-config1").config(cfg)
    del sys.path[-1]
    
    # sec:Result display
    
    for key, val in cfg.__dict__.items():
        print(f"{key}: {val}")

"""Console output example:
setting1: True
name: PC1 +Overwrite
ip: 192.168.0.1 +Overwrite
setting2: True
setting3: <__main__.trail__py_config_file.<locals>.Config object at 0x0>
setting11: True
"""

# sec: entry

if __name__ == "__main__": main()

All the settings in "cfg" are displayed on the console. On the application side, you can use the setting value like "cfg.setting1".