Convert .ini file to python3 config class. One of the answers to question: how to manage configs for python scripts.

Config.py

import configparser
import os
import re


class Config:
    MAX_THREADS = 5
    MAX_FILE_SIZE = 2**30
    #Other default options

    @staticmethod
    def load_from_ini(ini_file: str = 'config.ini'):
        if not os.path.exists(ini_file):
            ini_file = os.path.join(os.path.dirname(os.path.abspath(__file__)),ini_file)
        if not os.path.exists(ini_file):
            raise Exception("There is no file {}. Can not read configuration.".format(ini_file))
        ini = configparser.ConfigParser(interpolation = configparser.ExtendedInterpolation())
        ini.read_file(open(ini_file, 'r'))

        print("Loading config from ini file: " + str(ini_file))

        new_config = Config()
        for section in ini.items():
            for option in section[1]:
                default_value = new_config.__getattribute__(option.upper())
                if type(default_value) is int:
                    try:
                        new_config.__setattr__(option.upper(), ini.getint(section[0], option))
                    except:
                        new_value = eval(ini.get(section[0], option).split(';')[0])
                        new_config.__setattr__(option.upper(), new_value)
                elif type(default_value) is float:
                    try:
                        new_config.__setattr__(option.upper(), ini.getfloat(section[0], option))
                    except:
                        new_value = eval(ini.get(section[0], option).split(';')[0])
                        new_config.__setattr__(option.upper(), new_value)
                else:
                    new_config.__setattr__(option.upper(), ini.get(section[0], option))
        new_config.validate()
        return new_config
    
    def validate(self):
        #some validations
        pass